/* =========================
   EXPO SINUS - STYLE GLOBAL FINAL
========================= */

:root {
    --primary: #4f46e5;
    --primary-dark: #3730a3;
    --secondary: #0f172a;
    --accent: #06b6d4;
    --accent-soft: #ecfeff;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;

    --bg: #f8fafc;
    --bg-soft: #eef2ff;
    --surface: rgba(255, 255, 255, 0.82);
    --surface-strong: #ffffff;
    --text: #0f172a;
    --text-soft: #475569;
    --border: rgba(148, 163, 184, 0.20);

    --shadow-sm: 0 8px 24px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 18px 45px rgba(15, 23, 42, 0.10);
    --shadow-lg: 0 24px 60px rgba(79, 70, 229, 0.18);

    --radius-sm: 14px;
    --radius-md: 22px;
    --radius-lg: 30px;

    --transition: all 0.28s ease;
    --max-width: 1220px;
}

/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Segoe UI", Inter, Arial, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(79, 70, 229, 0.08), transparent 26%),
        radial-gradient(circle at top right, rgba(6, 182, 212, 0.08), transparent 22%),
        linear-gradient(180deg, #f8fbff 0%, #f8fafc 100%);
    color: var(--text);
    line-height: 1.65;
}

/* BASE */
a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
}

.container {
    width: min(92%, var(--max-width));
    margin: 0 auto;
}

.section {
    padding: 78px 0;
}

.text-center {
    text-align: center;
}

.hidden {
    display: none;
}

.mt-20 {
    margin-top: 20px;
}

.mt-30 {
    margin-top: 30px;
}

.mt-40 {
    margin-top: 40px;
}

/* TYPO */
h1, h2, h3, h4, h5, h6 {
    color: var(--secondary);
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.section-title {
    font-size: 2.35rem;
    font-weight: 800;
    margin-bottom: 12px;
    text-align: center;
}

.section-subtitle {
    font-size: 1.03rem;
    color: var(--text-soft);
    max-width: 760px;
    margin: 0 auto 34px auto;
    text-align: center;
}

/* HEADER */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(18px);
    background: rgba(15, 23, 42, 0.78);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-top {
    min-height: 84px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 14px 0;
    flex-wrap: nowrap;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 1.85rem;
    font-weight: 900;
    color: #ffffff;
    letter-spacing: -0.03em;
    white-space: nowrap;
    transition: var(--transition);
    flex-shrink: 0;
}

.logo span {
    color: #67e8f9;
}

.logo:hover {
    transform: translateY(-1px);
    opacity: 0.96;
}

.main-nav {
    flex: 1;
    min-width: 0;
    display: flex;
    justify-content: flex-end;
}

.main-nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.main-nav li {
    flex-shrink: 0;
}

.main-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 16px;
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 999px;
    transition: var(--transition);
    white-space: nowrap;
}

.main-nav a:hover {
    background: rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

/* CARDS */
.card,
.page-card,
.home-box {
    background: var(--surface);
    backdrop-filter: blur(14px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.page-card,
.home-box {
    overflow: hidden;
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 12px 22px;
    border: none;
    border-radius: 999px;
    font-size: 0.96rem;
    font-weight: 800;
    cursor: pointer;
    transition: var(--transition);
    gap: 8px;
}

.btn-primary {
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    box-shadow: 0 12px 28px rgba(79, 70, 229, 0.24);
}

.btn-secondary {
    background: linear-gradient(135deg, #4f46e5, #06b6d4);
    opacity: 0.9;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.01);
    box-shadow: 0 18px 34px rgba(79, 70, 229, 0.28);
}

.btn-light {
    color: var(--primary);
    background: rgba(255, 255, 255, 0.90);
    border: 1px solid rgba(79, 70, 229, 0.12);
}

.btn-light:hover {
    transform: translateY(-2px);
    background: #ffffff;
}

/* ACCORDIONS / BARRES */
.bar-item {
    width: 100%;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(79, 70, 229, 0.10);
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
}

.bar-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.bar-button {
    width: 100%;
    border: none;
    background: transparent;
    padding: 20px 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    text-align: left;
    cursor: pointer;
    color: var(--secondary);
    font-size: 1rem;
    font-weight: 800;
    transition: var(--transition);
}

.bar-button:hover {
    background: linear-gradient(90deg, rgba(79, 70, 229, 0.05), rgba(6, 182, 212, 0.03));
}

.bar-label {
    display: flex;
    align-items: center;
    gap: 12px;
}

.bar-arrow {
    color: var(--primary);
    font-size: 1.08rem;
    transition: transform 0.28s ease;
    flex-shrink: 0;
}

.bar-item.active > .bar-button .bar-arrow {
    transform: rotate(90deg);
}

/* SUBMENU */
.submenu {
    display: none;
    padding: 0 16px 16px 16px;
    background: linear-gradient(180deg, rgba(238, 242, 255, 0.35), rgba(255, 255, 255, 0.30));
}

.bar-item.active > .submenu {
    display: block;
}

.submenu .bar-item {
    margin-top: 12px;
    box-shadow: none;
    border-radius: 16px;
}

.submenu .bar-button {
    padding: 18px 18px;
    font-size: 0.97rem;
}

/* LIENS */
.chapter-list,
.chapter-list-wrapper,
.pdf-list {
    display: grid;
    gap: 16px;
}

.chapter-link,
.pdf-link,
.subject-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 16px 18px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(79, 70, 229, 0.10);
    font-weight: 700;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.chapter-link:hover,
.pdf-link:hover,
.subject-link:hover {
    transform: translateY(-2px);
    border-color: rgba(79, 70, 229, 0.22);
    box-shadow: var(--shadow-md);
}

.chapter-link span:last-child,
.pdf-link span:last-child,
.subject-link span:last-child {
    color: var(--primary);
    font-weight: 900;
    flex-shrink: 0;
}

/* FORMULAIRES */
.contact-form {
    display: grid;
    gap: 18px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    margin-top: 14px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 13px 15px;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.24);
    background: rgba(255, 255, 255, 0.92);
    color: var(--text);
    outline: none;
    transition: var(--transition);
    font-size: 0.96rem;
    box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.02);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: rgba(79, 70, 229, 0.50);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.10);
    background: #ffffff;
}

.form-group a {
    color: var(--primary);
    text-decoration: underline;
    font-weight: 800;
}

.form-group a:hover {
    color: var(--primary-dark);
}

/* HIGHLIGHT */
.highlight-box {
    padding: 18px 20px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(6, 182, 212, 0.08));
    border: 1px solid rgba(79, 70, 229, 0.12);
}

/* FOOTER */
.site-footer {
    margin-top: 70px;
    background: linear-gradient(135deg, #0f172a, #111827);
    color: #cbd5e1;
    padding: 34px 0;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}

.footer-links a {
    color: #cbd5e1;
    font-weight: 600;
    transition: var(--transition);
}

.footer-links a:hover {
    color: #ffffff;
}

/* UTIL */
a.link {
    color: var(--primary);
    text-decoration: underline;
    font-weight: 800;
}

a.link:hover {
    color: var(--primary-dark);
}

/* TABLETTE / PETIT PC */
@media (max-width: 1100px) {
    .main-nav a {
        padding: 10px 12px;
        font-size: 0.92rem;
    }

    .logo {
        font-size: 1.7rem;
    }
}

/* MOBILE / TABLETTE */
@media (max-width: 992px) {
    .header-top {
        flex-wrap: wrap;
    }

    .main-nav {
        width: 100%;
        justify-content: flex-start;
    }

    .main-nav ul {
        flex-wrap: wrap;
        justify-content: flex-start;
        white-space: normal;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.9rem;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .bar-button {
        padding: 18px 16px;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.65rem;
    }

    .section-subtitle {
        font-size: 0.96rem;
    }

    .main-nav a {
        padding: 9px 12px;
        font-size: 0.9rem;
    }
}


/* =====================================================================
   NOUVELLE MISE EN PAGE (accueil, pages ressources, pages infos)
   Ajouté le 10/10/2026 — les règles ci-dessus restent utilisées par les
   anciennes pages (contact, tarifs, inscription…).
===================================================================== */

/* ---------- En-tête ---------- */
.site-header:has(> .navbar) {
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid rgba(148, 163, 184, 0.25);
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.05);
}

.navbar {
    position: relative;
    width: min(92%, var(--max-width));
    margin: 0 auto;
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 10px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #ffffff;
    flex-shrink: 0;
}

.brand-icon {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    font-weight: 900;
    font-size: 1.3rem;
}

.brand-text strong { display: block; font-size: 1.2rem; line-height: 1.1; }
.brand-text small { display: block; color: #a5f3fc; font-size: 0.8rem; }

.nav-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 4px;
}

.nav-links a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 8px 14px;
    border-radius: 999px;
    color: var(--secondary);
    font-size: 0.94rem;
    font-weight: 600;
    white-space: nowrap;
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a:focus-visible {
    background: var(--bg-soft);
    color: var(--primary-dark);
}

.mobile-menu-btn {
    display: none;
    border: 1px solid rgba(43, 46, 99, 0.25);
    background: #ffffff;
    color: var(--secondary);
    font-size: 1.35rem;
    line-height: 1;
    padding: 8px 13px;
    border-radius: 12px;
    cursor: pointer;
}

@media (max-width: 1280px) {
    .mobile-menu-btn { display: inline-block; }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: -4vw;
        right: -4vw;
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        padding: 10px 4vw 16px;
        background: #ffffff;
        border-bottom: 1px solid rgba(148, 163, 184, 0.25);
        box-shadow: 0 16px 30px rgba(15, 23, 42, 0.10);
    }

    .nav-links.open { display: flex; }
    .nav-links a { border-radius: 12px; }
}

/* ---------- Bandeau de page ---------- */
.page-hero {
    padding: 44px 0 34px;
    background: linear-gradient(135deg, rgba(43, 46, 99, 0.10), rgba(224, 120, 86, 0.08));
    border-bottom: 1px solid var(--border);
}

.page-hero h1 {
    font-size: clamp(1.9rem, 4vw, 2.7rem);
    font-weight: 900;
    margin: 12px 0 10px;
}

.page-hero p {
    color: var(--text-soft);
    max-width: 780px;
    font-size: 1.04rem;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--text-soft);
    margin-bottom: 14px;
}

.breadcrumb a { color: var(--primary); font-weight: 600; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { opacity: 0.45; }

.badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(43, 46, 99, 0.10);
    color: var(--primary-dark);
    font-size: 0.84rem;
    font-weight: 700;
}

/* ---------- Boutons ---------- */
.btn-secondary { color: #ffffff; }

.btn-accent {
    color: var(--primary);
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.28);
}

.btn-accent:hover {
    transform: translateY(-2px);
    background: var(--bg-soft);
}

/* ---------- Listes de chapitres ---------- */
.chapter-section { padding: 40px 0 10px; }

.chapter-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 8px;
}

.chapter-header .section-title {
    text-align: left;
    font-size: clamp(1.5rem, 3vw, 1.9rem);
    margin-bottom: 4px;
}

.section-text { color: var(--text-soft); }

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 12px 0 20px;
}

.toolbar button {
    border: 1px solid rgba(43, 46, 99, 0.25);
    background: #ffffff;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.9rem;
    padding: 8px 16px;
    border-radius: 999px;
    cursor: pointer;
    transition: var(--transition);
}

.toolbar button:hover { background: var(--bg-soft); }

.group-title {
    margin: 18px 0 2px;
    font-size: 1.25rem;
    color: var(--primary-dark);
}

.chapter-list > details,
.cycle-card,
.level-card {
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    border-radius: 18px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.chapter-list > details > summary,
.cycle-card > summary,
.level-card > summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 17px 22px;
    font-weight: 800;
    color: var(--secondary);
    transition: var(--transition);
}

.chapter-list > details > summary::-webkit-details-marker,
.cycle-card > summary::-webkit-details-marker,
.level-card > summary::-webkit-details-marker { display: none; }

.chapter-list > details > summary::after,
.cycle-card > summary::after,
.level-card > summary::after {
    content: "▸";
    color: var(--primary);
    font-size: 1.1rem;
    transition: transform 0.25s ease;
    flex-shrink: 0;
}

.chapter-list > details[open] > summary::after,
.cycle-card[open] > summary::after,
.level-card[open] > summary::after { transform: rotate(90deg); }

.chapter-list > details > summary:hover,
.cycle-card > summary:hover,
.level-card > summary:hover {
    background: linear-gradient(90deg, rgba(43, 46, 99, 0.05), rgba(224, 120, 86, 0.03));
}

.chapter-list > details[open] > summary {
    border-bottom: 1px solid var(--border);
    background: linear-gradient(90deg, rgba(43, 46, 99, 0.06), rgba(224, 120, 86, 0.04));
}

.pdf-grid {
    display: grid;
    gap: 10px;
    padding: 16px;
}

.pdf-row {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 0.9fr) auto;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(248, 250, 252, 0.9);
}

.pdf-row strong {
    display: block;
    color: var(--secondary);
    font-size: 0.98rem;
}

.pdf-row small {
    display: block;
    color: var(--text-soft);
    font-size: 0.85rem;
    overflow-wrap: anywhere;
}

.pdf-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.pdf-actions .btn {
    min-height: 40px;
    padding: 8px 16px;
    font-size: 0.88rem;
}

@media (max-width: 760px) {
    .pdf-row { grid-template-columns: 1fr; gap: 6px; }
    .pdf-actions { justify-content: flex-start; margin-top: 4px; }
    .chapter-list > details > summary { padding: 15px 16px; }
    .pdf-grid { padding: 12px; }
}

/* ---------- Pages d'information ---------- */
.info-page { padding: 40px 0 10px; }

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

.info-card {
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    border-radius: 20px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.info-card h2,
.info-card h3 { font-size: 1.2rem; margin: 8px 0 8px; }
.info-card p { color: var(--text-soft); margin-bottom: 10px; }
.info-card .btn { margin-top: 6px; }

.info-card ul { margin: 6px 0 0 18px; color: var(--text-soft); }
.info-card li { margin: 3px 0; }

.price { font-size: 2rem; font-weight: 900; color: var(--primary); }

.section-heading {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 26px;
}

.section-heading h2 { font-size: clamp(1.6rem, 3.4vw, 2.1rem); margin-bottom: 8px; }
.section-heading p { color: var(--text-soft); }
.section-heading .section-subtitle { margin: 0 auto 8px; font-weight: 700; color: var(--primary); }
.section-white { background: #ffffff; }

/* ---------- Accueil ---------- */
.hero-mini {
    padding: 64px 0 56px;
    background: #2b2e63;
    color: #e2e8f0;
}

.hero-mini-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
}

.hero-mini .badge { background: rgba(255, 255, 255, 0.12); color: #fde4da; }

.hero-mini h1 {
    color: #ffffff;
    font-size: clamp(2.1rem, 5vw, 3.3rem);
    font-weight: 900;
    margin: 16px 0 12px;
}

.hero-mini h1 span {
    display: block;
    background: linear-gradient(90deg, #f4a283, #e07856);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-lead { max-width: 620px; color: #cbd5e1; font-size: 1.08rem; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-logo { width: min(300px, 60vw); height: auto; }

@media (max-width: 700px) {
    .hero-logo { display: none; }
}

.resources-main { padding: 50px 0 30px; }

.resources-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 18px;
}

.resources-header h2 { font-size: clamp(1.6rem, 3.4vw, 2.1rem); }
.resources-header p { color: var(--text-soft); }

.cycle-grid { display: grid; gap: 18px; }

.cycle-card { border-radius: 22px; box-shadow: var(--shadow-md); }
.cycle-card > summary { font-size: 1.3rem; padding: 22px 26px; }

.cycle-content {
    display: grid;
    gap: 12px;
    padding: 4px 18px 20px;
}

.level-card {
    background: rgba(248, 250, 252, 0.95);
    box-shadow: none;
    border-radius: 16px;
}

.level-card > summary { padding: 15px 20px; }

.level-tag {
    margin-left: auto;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-soft);
    background: rgba(148, 163, 184, 0.18);
    padding: 3px 10px;
    border-radius: 999px;
}

.subject-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 10px;
    padding: 0 14px 16px;
}

.subject-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 13px 16px;
    border-radius: 14px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.14);
    font-weight: 700;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.subject-links a::after { content: "→"; color: var(--primary); font-weight: 900; }

.subject-links a:hover {
    transform: translateY(-2px);
    border-color: rgba(43, 46, 99, 0.3);
    box-shadow: var(--shadow-md);
}

.final-cta { padding: 56px 0 10px; }

.final-cta-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
    padding: 34px;
    border-radius: 26px;
    background: linear-gradient(135deg, rgba(43, 46, 99, 0.10), rgba(224, 120, 86, 0.10));
    border: 1px solid rgba(43, 46, 99, 0.14);
}

.final-cta-inner h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 4px 0 8px; }
.final-cta-inner p { color: var(--text-soft); }
.final-cta .section-subtitle { text-align: left; margin: 0; font-weight: 700; color: var(--primary); }

/* ---------- Pied de page ---------- */
.footer-main {
    width: min(92%, var(--max-width));
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-main p { color: #94a3b8; margin-top: 6px; }
.footer-slogan span { color: #67e8f9; }

.copyright {
    width: min(92%, var(--max-width));
    margin: 20px auto 0;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.88rem;
    color: #94a3b8;
}

@media (max-width: 600px) {
    .page-hero { padding: 32px 0 26px; }
    .hero-mini { padding: 44px 0 40px; }
    .cycle-card > summary { padding: 18px 18px; }
    .cycle-content { padding: 4px 10px 14px; }
    .final-cta-inner { padding: 24px; }
}

/* =====================================================================
   COULEURS DE LA CHARTE (bleu marine + orange du logo)
===================================================================== */
:root {
    --primary: #2b2e63;
    --primary-dark: #1d1f45;
    --accent: #e07856;
    --accent-dark: #c9623f;
    --accent-soft: #fdf1ec;
    --bg-soft: #eef0f7;
    --secondary: #1d1f45;
    --shadow-lg: 0 24px 60px rgba(43, 46, 99, 0.16);
}

body {
    background: #faf8f5;
}

.btn-primary {
    color: #ffffff;
    background: var(--accent);
    box-shadow: none;
}

.btn-primary:hover {
    background: var(--accent-dark);
    box-shadow: none;
}

.btn-accent {
    color: var(--primary);
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.25);
}

.btn-accent:hover { background: var(--bg-soft); }

.btn-light { color: var(--primary); }

.badge { background: rgba(43, 46, 99, 0.08); color: var(--primary); }

.page-hero {
    background: linear-gradient(135deg, rgba(43, 46, 99, 0.07), rgba(224, 120, 86, 0.07));
}

.breadcrumb a,
.toolbar button,
.group-title { color: var(--primary); }

.chapter-list > details > summary::after,
.cycle-card > summary::after,
.level-card > summary::after,
.subject-links a::after { color: var(--accent); }

.nav-links a[aria-current="page"] {
    color: var(--accent-dark);
    background: var(--accent-soft);
}

/* =====================================================================
   PAGES D'INFORMATION (tarifs, contact, CV, à propos, inscription…)
===================================================================== */
.page-main { padding: 40px 0 10px; }

.page-content {
    display: grid;
    gap: 22px;
}

.page-card {
    padding: 28px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.10);
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
}

.page-card h2 { font-size: 1.45rem; font-weight: 800; margin-bottom: 12px; }
.page-card h3 { font-size: 1.08rem; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
.page-card p { margin-bottom: 12px; }
.page-card p:last-child { margin-bottom: 0; }
.card-intro { color: var(--text-soft); margin-bottom: 18px !important; }
.text-center { text-align: center; }

.page-list { padding-left: 20px; }
.page-list li { margin-bottom: 8px; }
.page-list li::marker { color: var(--accent); }

.highlight-box {
    background: var(--accent-soft);
    border: 1px solid rgba(224, 120, 86, 0.22);
    border-radius: 16px;
    padding: 16px 20px;
    margin: 12px 0;
}

.page-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 8px;
}

.section-header-with-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 22px;
}

.section-header-with-action h2 { margin-bottom: 0; }
.mini-intro { margin-top: 6px; color: var(--text-soft); font-size: 0.96rem; }

.inner-form-card {
    padding: 22px;
    border-radius: 18px;
    background: #fbfaf8;
    border: 1px solid rgba(43, 46, 99, 0.10);
    margin-bottom: 18px;
}

.helper-text { margin-top: 12px; color: var(--text-soft); font-size: 0.94rem; }
.form-group-full { grid-column: 1 / -1; }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: rgba(43, 46, 99, 0.5);
    box-shadow: 0 0 0 4px rgba(43, 46, 99, 0.10);
}

.checkbox-list { display: grid; gap: 14px; margin-top: 8px; }

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    line-height: 1.55;
    font-size: 0.97rem;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    accent-color: var(--accent);
    cursor: pointer;
}

.checkbox-group a { color: var(--primary); text-decoration: underline; font-weight: 700; }

.form-submit-area {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
}

.form-note {
    margin-top: 16px;
    color: var(--text-soft);
    font-size: 0.94rem;
    text-align: center;
}

.teacher-info {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 24px;
    align-items: start;
}

.teacher-photo {
    min-height: 240px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(43, 46, 99, 0.08), rgba(224, 120, 86, 0.10));
    border: 1px solid rgba(43, 46, 99, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    text-align: center;
    color: var(--primary);
    font-weight: 800;
}

.teacher-details { display: grid; gap: 16px; }

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}

.value-card {
    position: relative;
    padding: 22px;
    border-radius: 18px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.10);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.value-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.value-card h3 { margin: 4px 0 8px; }
.value-card p { color: var(--text-soft); font-size: 0.96rem; }

.tarif-legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    border-radius: 14px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.10);
    font-weight: 700;
    color: var(--secondary);
}

.legend-dot { width: 16px; height: 16px; border-radius: 6px; display: inline-block; }
.legend-group .legend-dot { background: #dfe1f0; border: 1px solid rgba(43, 46, 99, 0.25); }
.legend-indiv .legend-dot { background: #fbe1d6; border: 1px solid rgba(224, 120, 86, 0.45); }

.table-wrapper { width: 100%; overflow-x: auto; border-radius: 16px; }

.tarif-table {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
    background: #ffffff;
}

.tarif-table thead th {
    background: var(--primary);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.93rem;
    padding: 12px 10px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.tarif-table tbody td {
    padding: 11px 10px;
    text-align: center;
    border: 1px solid rgba(43, 46, 99, 0.10);
    color: var(--secondary);
    font-weight: 600;
}

.tarif-table tbody tr:nth-child(even) { background: #fbfaf8; }
.tarif-table tbody td:first-child { font-weight: 800; }

.slot-group,
.slot-indiv {
    display: inline-flex;
    justify-content: center;
    min-width: 86px;
    padding: 6px 12px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.88rem;
}

.slot-group { background: #dfe1f0; color: var(--primary); }
.slot-indiv { background: #fbe1d6; color: #9a4325; }

@media (max-width: 760px) {
    .teacher-info { grid-template-columns: 1fr; }
    .page-card { padding: 20px; }
    .inner-form-card { padding: 16px; }
}

/* Formulaires : même police partout */
button, input, select, textarea { font: inherit; }

/* Pied de page aux couleurs de la charte */
.site-footer { background: #1d1f45; }
.footer-main p, .copyright { color: #b8bbd6; }

.info-grid + .info-card,
.info-card + .info-grid { margin-top: 18px; }

/* =====================================================================
   CV : monogramme à la place de la photo
===================================================================== */
.teacher-monogram { flex-direction: column; gap: 14px; }
.monogram {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 112px;
    height: 112px;
    border-radius: 50%;
    background: var(--primary);
    color: #ffffff;
    font-size: 2.1rem;
    font-weight: 900;
    letter-spacing: 0.06em;
    box-shadow: 0 0 0 6px rgba(224, 120, 86, 0.35);
}
.monogram-caption { font-size: 0.95rem; line-height: 1.5; }

/* =====================================================================
   CORRIGÉS PREMIUM, COMPTE ÉLÈVE, LECTEUR PROTÉGÉ
===================================================================== */
.pdf-row-premium { background: linear-gradient(90deg, #ffffff, var(--accent-soft)); }
.premium-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--accent-soft);
    border: 1px solid rgba(224, 120, 86, 0.35);
    color: #9a4325;
    font-size: 0.82rem;
    font-weight: 800;
    white-space: nowrap;
}

.a-completer {
    background: #fff3b0;
    color: #6b4e00;
    padding: 1px 6px;
    border-radius: 6px;
    font-weight: 700;
}

.auth-card { max-width: 520px; margin: 0 auto; width: 100%; }
.auth-tabs { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.auth-tabs button {
    flex: 1;
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid rgba(43, 46, 99, 0.18);
    background: #ffffff;
    color: var(--primary);
    font-weight: 800;
    cursor: pointer;
}
.auth-tabs button[aria-selected="true"] { background: var(--primary); color: #ffffff; border-color: var(--primary); }
.auth-card .form-group { margin-bottom: 14px; }
.auth-card .btn { width: 100%; justify-content: center; }
.link-button {
    background: none;
    border: none;
    padding: 0;
    color: var(--primary);
    text-decoration: underline;
    font-weight: 700;
    cursor: pointer;
}

.message {
    padding: 12px 16px;
    border-radius: 12px;
    margin: 12px 0;
    font-weight: 600;
    line-height: 1.5;
}
.message[hidden] { display: none; }
.message-ok { background: #e7f8f1; color: #08603f; border: 1px solid rgba(16, 185, 129, 0.35); }
.message-erreur { background: #fdecec; color: #8f1d1d; border: 1px solid rgba(239, 68, 68, 0.35); }
.message-info { background: var(--bg-soft); color: var(--primary); border: 1px solid rgba(43, 46, 99, 0.15); }

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.92rem;
}
.status-pill.actif { background: #e7f8f1; color: #08603f; }
.status-pill.inactif { background: var(--bg-soft); color: var(--primary); }

.plan-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.plan-card {
    position: relative;
    padding: 26px;
    border-radius: 20px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.plan-card.recommande { border: 2px solid var(--accent); }
.plan-card .ruban {
    position: absolute;
    top: -12px;
    right: 18px;
    background: var(--accent);
    color: #ffffff;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 800;
}
.plan-card .price small { font-size: 1rem; color: var(--text-soft); font-weight: 700; }
.plan-card .equivalent { color: var(--text-soft); font-size: 0.94rem; margin: 0; }
.plan-card .btn { margin-top: auto; justify-content: center; }
.renonciation { margin: 18px 0 6px; }

/* Lecteur de corrigé */
.viewer-bar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 16px;
    background: var(--primary);
    color: #ffffff;
}
.viewer-bar h1 { font-size: 1rem; font-weight: 800; color: #ffffff; margin: 0; }
.viewer-bar .btn { padding: 8px 14px; }
.viewer-zoom { display: flex; gap: 6px; align-items: center; }
.viewer-zoom button {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 800;
    cursor: pointer;
}
.viewer-pages {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    padding: 24px 12px 60px;
    background: #e9e7ef;
    min-height: 70vh;
    -webkit-user-select: none;
    user-select: none;
}
.viewer-page {
    position: relative;
    background: #ffffff;
    box-shadow: var(--shadow-md);
    max-width: 100%;
}
.viewer-page canvas { display: block; width: 100%; height: auto; }
.viewer-watermark {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-repeat: repeat;
    opacity: 0.16;
}
.viewer-state { max-width: 640px; margin: 40px auto; text-align: center; }
@media print {
    body.protege * { display: none !important; }
    body.protege::after { content: "Impression désactivée — corrigé réservé aux abonnés ExpoSinus."; display: block; }
}

/* Lien « Mon compte » mis en avant dans le menu */
.nav-links a.nav-compte { background: var(--primary); color: #ffffff; }
.nav-links a.nav-compte:hover,
.nav-links a.nav-compte:focus-visible { background: var(--primary-dark); color: #ffffff; }
.premium-info { margin: 14px 0 6px; }
.premium-info p { margin: 0; }
.legal-content h2 { margin-top: 6px; }
.legal-content h3 { margin-top: 18px; }
.legal-content ul { padding-left: 20px; margin: 8px 0 12px; }
.legal-content li { margin-bottom: 6px; }
.legal-content li::marker { color: var(--accent); }
.recap-list { list-style: none; padding: 0; margin: 12px 0; display: grid; gap: 8px; }
.recap-list li { padding: 10px 14px; border-radius: 12px; background: #fbfaf8; border: 1px solid rgba(43, 46, 99, 0.10); }
.zone-danger { border-color: rgba(239, 68, 68, 0.25); }
.btn-danger { color: #8f1d1d; background: #ffffff; border: 1px solid rgba(239, 68, 68, 0.45); }
.btn-danger:hover { background: #fdecec; }
.honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* Carte centrée (page « Page introuvable ») */
.carte-centree { text-align: center; max-width: 720px; margin: 0 auto; }

/* Photo du professeur (CV) : recouvre le monogramme quand le fichier existe */
.teacher-monogram { position: relative; overflow: hidden; }
.photo-professeur {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
}

/* =====================================================================
   MENU : sous-menu « Cours particuliers » et rubrique en cours
===================================================================== */
.nav-links a.actif {
    color: var(--accent-dark);
    background: var(--accent-soft);
}

.nav-groupe { position: relative; }

.nav-groupe > summary {
    list-style: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 40px;
    padding: 8px 14px;
    border-radius: 999px;
    color: var(--secondary);
    font-size: 0.94rem;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    transition: var(--transition);
}

.nav-groupe > summary::-webkit-details-marker { display: none; }
.nav-groupe > summary::after { content: "▾"; color: var(--accent); font-size: 0.85em; transition: transform 0.2s ease; }
.nav-groupe[open] > summary::after { transform: rotate(180deg); }
.nav-groupe > summary:hover,
.nav-groupe > summary:focus-visible { background: var(--bg-soft); color: var(--primary-dark); }
.nav-groupe > summary.actif { color: var(--accent-dark); background: var(--accent-soft); }

.nav-sous-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    z-index: 30;
    display: grid;
    gap: 2px;
    min-width: 220px;
    padding: 8px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.nav-sous-menu a { border-radius: 10px; }

@media (max-width: 1280px) {
    .nav-groupe > summary { width: 100%; border-radius: 12px; }
    .nav-sous-menu {
        position: static;
        min-width: 0;
        padding: 0 0 4px 14px;
        border: none;
        box-shadow: none;
        background: transparent;
    }
}

/* =====================================================================
   ACCUEIL : bloc « Apprendre autrement »
===================================================================== */
.decouvrir-grille {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

.decouvrir-carte {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 24px;
    border-radius: 20px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.decouvrir-carte:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(43, 46, 99, 0.25); }
.decouvrir-carte h3 { font-size: 1.2rem; }
.decouvrir-carte p { color: var(--text-soft); }

.lien-fleche { margin-top: auto; color: var(--accent-dark); font-weight: 800; }

.icone-ronde {
    display: inline-grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: var(--accent-soft);
    font-size: 1.6rem;
}

/* =====================================================================
   FILTRES ET ÉTIQUETTES (jeux, actualités, livres)
===================================================================== */
.filtres {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 6px 0 20px;
}

.filtres button {
    border: 1px solid rgba(43, 46, 99, 0.22);
    background: #ffffff;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.92rem;
    padding: 8px 16px;
    border-radius: 999px;
    cursor: pointer;
    transition: var(--transition);
}

.filtres button:hover { background: var(--bg-soft); }
.filtres button[aria-pressed="true"] { background: var(--primary); color: #ffffff; border-color: var(--primary); }

.etiquettes { display: flex; flex-wrap: wrap; gap: 6px; }

.etiquette {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    background: var(--bg-soft);
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 700;
}

.etiquette-maths { background: #e6e8f5; color: #2b2e63; }
.etiquette-physique { background: #fbe7df; color: #9a4325; }
.etiquette-si { background: #e0f2f1; color: #0f5f59; }
.etiquette-enseignement { background: #eef0f7; color: #1d1f45; }

.bloc-section { margin-top: 34px; }
.bloc-section:first-child { margin-top: 0; }

.titre-section {
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    margin-bottom: 6px;
}

.intro-section { color: var(--text-soft); margin-bottom: 16px; max-width: 820px; }

/* =====================================================================
   JEUX ÉDUCATIFS
===================================================================== */
.jeux-grille {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 18px;
}

.jeu-carte {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 22px;
    border-radius: 20px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.jeu-carte:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(43, 46, 99, 0.25); }
.jeu-carte[hidden] { display: none; }
.jeu-carte h3 { font-size: 1.15rem; }
.jeu-carte p { color: var(--text-soft); font-size: 0.95rem; }

.outils-grille {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 12px;
}

.outil-lien {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 14px 16px;
    border-radius: 14px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.outil-lien:hover { transform: translateY(-2px); border-color: rgba(43, 46, 99, 0.28); }
.outil-lien strong { color: var(--secondary); }
.outil-lien strong::after { content: " ↗"; color: var(--accent); font-weight: 900; }
.outil-lien small { color: var(--text-soft); }
.mention-source { margin-top: 12px; color: var(--text-soft); font-size: 0.88rem; }

/* Zone de jeu */
.jeu-zone {
    max-width: 780px;
    margin: 0 auto;
    padding: 26px;
    border-radius: 22px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-md);
}

.jeu-ecran[hidden] { display: none; }
.jeu-ecran h2 { font-size: 1.35rem; margin-bottom: 8px; }
.jeu-ecran > p { color: var(--text-soft); margin-bottom: 14px; }
.jeu-ecran noscript p { color: #8f1d1d; font-weight: 700; }

.jeu-niveaux { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 18px; }

.jeu-niveaux button {
    border: 2px solid rgba(43, 46, 99, 0.18);
    background: #ffffff;
    color: var(--primary);
    font-weight: 800;
    padding: 10px 18px;
    border-radius: 14px;
    cursor: pointer;
}

.jeu-niveaux button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); color: #9a4325; }

.jeu-barre {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 10px;
    font-weight: 800;
    color: var(--primary);
}

.jeu-chrono.urgent { color: #b42318; }

.jeu-progression {
    height: 8px;
    border-radius: 999px;
    background: var(--bg-soft);
    overflow: hidden;
    margin-bottom: 20px;
}

.jeu-progression span {
    display: block;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width 0.3s ease;
}

.jeu-question {
    font-size: clamp(1.25rem, 3.6vw, 1.7rem);
    font-weight: 800;
    color: var(--secondary);
    text-align: center;
    margin: 6px 0 20px;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.jeu-question small { display: block; font-size: 0.95rem; font-weight: 600; color: var(--text-soft); margin-bottom: 6px; }

.jeu-choix {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.jeu-choix button {
    min-height: 58px;
    padding: 12px 14px;
    border-radius: 16px;
    border: 2px solid rgba(43, 46, 99, 0.16);
    background: #fbfaf8;
    color: var(--secondary);
    font-size: 1.08rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.jeu-choix button:hover:not(:disabled) { border-color: var(--primary); background: #ffffff; }
.jeu-choix button.juste { border-color: #10b981; background: #e7f8f1; color: #08603f; }
.jeu-choix button.faux { border-color: #ef4444; background: #fdecec; color: #8f1d1d; }
.jeu-choix button:disabled { cursor: default; }

.jeu-saisie { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }

.jeu-saisie input {
    width: min(100%, 300px);
    padding: 13px 16px;
    border-radius: 14px;
    border: 2px solid rgba(43, 46, 99, 0.2);
    font-size: 1.2rem;
    font-weight: 700;
    text-align: center;
}

.jeu-saisie input:focus,
.jeu-equation input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(43, 46, 99, 0.1); }

.jeu-equation {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: clamp(1.1rem, 3.2vw, 1.45rem);
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 16px;
}

.jeu-equation input {
    width: 58px;
    padding: 8px 4px;
    border-radius: 10px;
    border: 2px solid rgba(43, 46, 99, 0.22);
    font-size: 1.1rem;
    font-weight: 800;
    text-align: center;
}

.jeu-equation .operateur { color: var(--accent-dark); }
.jeu-equation .espece { white-space: nowrap; }

.jeu-nombres { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 14px 0 16px; }

.jeu-nombres span {
    min-width: 52px;
    padding: 10px 12px;
    border-radius: 12px;
    background: var(--primary);
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 900;
    text-align: center;
}

.jeu-cible {
    display: inline-block;
    padding: 4px 22px;
    border-radius: 14px;
    background: var(--accent);
    color: #ffffff;
    font-size: 2rem;
    font-weight: 900;
}

.jeu-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 18px; }
.jeu-actions .btn { min-height: 46px; }

.jeu-retour { margin-top: 16px; text-align: center; }
.jeu-retour:empty { display: none; }

.jeu-canvas {
    display: block;
    width: min(100%, 340px);
    height: auto;
    aspect-ratio: 1;
    margin: 0 auto 18px;
    border-radius: 14px;
    border: 1px solid rgba(43, 46, 99, 0.15);
    background: #ffffff;
}

.jeu-table {
    margin: 0 auto 16px;
    border-collapse: collapse;
    font-size: 1.05rem;
    font-weight: 700;
}

.jeu-table th,
.jeu-table td { border: 1px solid rgba(43, 46, 99, 0.2); padding: 6px 16px; text-align: center; }
.jeu-table th { background: var(--bg-soft); color: var(--primary); }

.jeu-resultat { text-align: center; }
.jeu-score { font-size: 3rem; font-weight: 900; color: var(--primary); line-height: 1.1; margin: 8px 0; }
.jeu-score small { font-size: 1.2rem; color: var(--text-soft); }
.jeu-record { color: var(--text-soft); font-weight: 700; }

.barre-dessus { text-decoration: overline; }
.frac { display: inline-flex; flex-direction: column; vertical-align: middle; text-align: center; font-size: 0.82em; line-height: 1.2; margin: 0 2px; }
.frac > span:first-child { border-bottom: 2px solid currentColor; padding: 0 3px; }

.contenu-pedago { max-width: 780px; margin-left: auto; margin-right: auto; }
.contenu-pedago h2 { font-size: 1.3rem; margin: 6px 0 10px; }
.contenu-pedago ul { padding-left: 20px; }
.contenu-pedago li { margin-bottom: 6px; }
.contenu-pedago li::marker { color: var(--accent); }

@media (max-width: 560px) {
    .jeu-zone { padding: 18px; }
    .jeu-choix { grid-template-columns: 1fr; }
}

/* =====================================================================
   ACTUALITÉS ET ARTICLES
===================================================================== */
.articles-grille,
.actu-grille {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.article-carte {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 22px;
    border-radius: 20px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    border-top: 4px solid var(--accent);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.article-carte:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.article-carte .etiquette { align-self: flex-start; }
.article-carte h3 { font-size: 1.15rem; }
.article-carte p { color: var(--text-soft); font-size: 0.95rem; }

.actu-carte {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 18px;
    border-radius: 16px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-sm);
}

.actu-carte[hidden] { display: none; }
.actu-carte a { font-weight: 800; color: var(--secondary); line-height: 1.35; }
.actu-carte a:hover { color: var(--accent-dark); text-decoration: underline; }
.actu-carte a::after { content: " ↗"; color: var(--accent); }
.actu-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 0.82rem; color: var(--text-soft); }
.actu-etat { color: var(--text-soft); }
.actu-sources { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.actu-sources a { padding: 6px 12px; border-radius: 999px; background: #ffffff; border: 1px solid rgba(43, 46, 99, 0.15); font-weight: 700; font-size: 0.88rem; color: var(--primary); }
.actu-sources a:hover { background: var(--bg-soft); }

.article-page { max-width: 780px; margin: 0 auto; }
.article-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; color: var(--text-soft); font-size: 0.92rem; margin-top: 8px; }
.article-contenu { font-size: 1.04rem; }
.article-contenu h2 { font-size: 1.4rem; margin: 30px 0 10px; }
.article-contenu h3 { font-size: 1.12rem; margin: 20px 0 8px; color: var(--primary); }
.article-contenu p { margin-bottom: 14px; }
.article-contenu ul,
.article-contenu ol { padding-left: 22px; margin: 0 0 16px; }
.article-contenu li { margin-bottom: 8px; }
.article-contenu li::marker { color: var(--accent); font-weight: 800; }
.article-contenu a { color: var(--primary); text-decoration: underline; font-weight: 700; }
.article-contenu .highlight-box p:last-child { margin-bottom: 0; }

.auteur-encart {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 28px;
    padding: 18px 20px;
    border-radius: 18px;
    background: var(--bg-soft);
}

.auteur-encart .monogram { width: 64px; height: 64px; font-size: 1.2rem; flex-shrink: 0; box-shadow: none; }
.auteur-encart p { margin: 0; color: var(--text-soft); font-size: 0.95rem; }
.auteur-encart strong { color: var(--secondary); }
.auteur-encart a { color: var(--primary); text-decoration: underline; font-weight: 700; }

/* =====================================================================
   LIVRES
===================================================================== */
.livres-barre {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 14px;
    margin-bottom: 20px;
}

.livres-barre label { display: grid; gap: 6px; font-weight: 700; color: var(--secondary); font-size: 0.92rem; }

.livres-barre select {
    min-width: 200px;
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid rgba(43, 46, 99, 0.22);
    background: #ffffff;
    color: var(--secondary);
    font-weight: 600;
}

.livres-grille {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 18px;
}

.livre-carte {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 14px;
    border-radius: 18px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-sm);
}

.livre-couverture {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    aspect-ratio: 3 / 4;
    padding: 18px 16px;
    border-radius: 10px 14px 14px 10px;
    color: #ffffff;
    overflow: hidden;
    box-shadow: inset 6px 0 0 rgba(0, 0, 0, 0.18), 0 10px 22px rgba(15, 23, 42, 0.18);
    background: linear-gradient(160deg, #2b2e63, #1d1f45);
}

.livre-couverture img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.livre-couverture.physique { background: linear-gradient(160deg, #e07856, #9a4325); }
.livre-couverture.si { background: linear-gradient(160deg, #1f8a82, #0f5f59); }
.livre-couverture .marque { font-size: 0.8rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.85; }
.livre-couverture .matiere { font-size: 1.25rem; font-weight: 900; line-height: 1.15; }
.livre-couverture .niveau { font-size: 0.95rem; font-weight: 700; opacity: 0.9; }
.livre-couverture::after { content: "∿"; position: absolute; right: -6px; bottom: -28px; font-size: 7rem; opacity: 0.12; line-height: 1; }

.livre-carte[hidden] { display: none; }
.livre-carte h3 { font-size: 1rem; line-height: 1.3; }
.livre-carte p { color: var(--text-soft); font-size: 0.9rem; }
.livre-statut { align-self: flex-start; }
.livre-statut.disponible { background: #e7f8f1; color: #08603f; }
.livre-prix { font-size: 1.3rem; font-weight: 900; color: var(--primary); }
.livre-carte .btn { min-height: 42px; margin-top: auto; }
.livres-vide { text-align: center; color: var(--text-soft); padding: 20px; }

/* =====================================================================
   PAGE TARIFS : cours individuels (domicile avec avance immédiate, en ligne)
===================================================================== */
.tarif-entete { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; margin-bottom: 6px; }
.tarif-entete h2 { margin-bottom: 0; }

.badge-priorite,
.badge-ligne {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.86rem;
    font-weight: 800;
}

.badge-priorite { background: var(--accent); color: #ffffff; }
.badge-ligne { background: var(--bg-soft); color: var(--primary); }

.tarif-bloc-domicile { border: 2px solid var(--accent); }

.tarif-grille {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 14px;
    margin-top: 6px;
}

.tarif-carte {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 20px 16px;
    border-radius: 18px;
    background: #fbfaf8;
    border: 1px solid rgba(43, 46, 99, 0.12);
    text-align: center;
}

.tarif-carte.domicile { background: linear-gradient(180deg, #ffffff, var(--accent-soft)); border-color: rgba(224, 120, 86, 0.35); }
.tarif-carte h3 { font-size: 1.05rem; color: var(--secondary); margin: 0; }

.tarif-avantage {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    background: #e7f8f1;
    color: #08603f;
    font-size: 0.8rem;
    font-weight: 800;
}

.tarif-final { font-size: 2.6rem; font-weight: 900; line-height: 1.05; color: var(--accent-dark); }
.tarif-final.ligne { font-size: 2.2rem; color: var(--primary); }
.tarif-final small { font-size: 1rem; font-weight: 700; color: var(--text-soft); }
.tarif-barre { margin: 0 !important; color: var(--text-soft); font-size: 0.92rem; }
.tarif-barre s { color: var(--text-soft); text-decoration-thickness: 2px; }
.tarif-note { margin-top: 14px !important; color: var(--text-soft); font-size: 0.9rem; }

.etapes-ai { padding-left: 22px; display: grid; gap: 10px; }
.etapes-ai li::marker { color: var(--accent); font-weight: 900; }

/* =====================================================================
   JEUX D'ARCADE ET DE RÉFLEXION (assets/js/arcade.js + assets/js/jeux/)
===================================================================== */
.arcade-zone { max-width: 860px; margin: 0 auto; }

.arcade-cadre {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.15);
    box-shadow: var(--shadow-md);
}

.arcade-espace { background: #05061a; }

.arcade-canvas {
    display: block;
    width: 100%;
    height: auto;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
}

.arcade-panneau {
    position: absolute;
    inset: 0;
    z-index: 5;
    display: grid;
    place-items: center;
    padding: 16px;
    background: rgba(20, 22, 58, 0.62);
    -webkit-backdrop-filter: blur(3px);
    backdrop-filter: blur(3px);
}

.arcade-panneau[hidden] { display: none; }

.arcade-boite {
    width: min(100%, 470px);
    max-height: 100%;
    overflow: auto;
    padding: 24px;
    border-radius: 20px;
    background: #ffffff;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.arcade-boite h2 { font-size: 1.4rem; margin-bottom: 10px; }
.arcade-texte p { color: var(--text-soft); margin-bottom: 10px; }
.arcade-texte strong { color: var(--secondary); }
.arcade-boite .jeu-actions { margin-top: 12px; }
.arcade-boite .btn { min-height: 44px; padding: 10px 18px; }
.arcade-score { font-size: 2.4rem; font-weight: 900; color: var(--accent-dark) !important; margin: 6px 0 !important; }
.arcade-petit { font-size: 0.9rem; }

.arcade-touches {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 12px;
}

.arcade-touche {
    min-width: 76px;
    min-height: 56px;
    padding: 10px 16px;
    border-radius: 16px;
    border: 2px solid rgba(43, 46, 99, 0.2);
    background: #ffffff;
    color: var(--primary);
    font-size: 1.15rem;
    font-weight: 900;
    cursor: pointer;
    touch-action: none;
    -webkit-user-select: none;
    user-select: none;
}

.arcade-touche.appui,
.arcade-touche:active { background: var(--accent); border-color: var(--accent); color: #ffffff; }

@media (hover: hover) and (pointer: fine) {
    [data-arcade="alunissage"] .arcade-touches { opacity: 0.85; }
}

.arcade-reglages {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 14px 22px;
    margin-top: 14px;
}

.arcade-reglages label { display: grid; gap: 6px; min-width: 220px; font-weight: 700; color: var(--secondary); }
.arcade-reglages label strong { color: var(--accent-dark); }
.arcade-reglages input[type="range"] { width: 100%; accent-color: var(--accent); }

.arcade-saisie {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 14px;
}

.arcade-saisie label { font-weight: 900; color: var(--primary); font-size: 1.15rem; }

.arcade-saisie input {
    width: min(100%, 360px);
    padding: 12px 16px;
    border-radius: 14px;
    border: 2px solid rgba(43, 46, 99, 0.22);
    font-size: 1.15rem;
    font-weight: 700;
}

.arcade-saisie input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(43, 46, 99, 0.1); }

.arcade-aides { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin-top: 10px; }

.arcade-puce {
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid rgba(43, 46, 99, 0.2);
    background: #ffffff;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
}

.arcade-puce:hover { background: var(--bg-soft); }
.arcade-puce-indice { background: var(--accent-soft); border-color: rgba(224, 120, 86, 0.35); color: #9a4325; }

.arcade-info { text-align: center; color: var(--text-soft); margin-top: 10px; min-height: 1.6em; }
.arcade-info strong { color: var(--secondary); }

/* Fusion stellaire */
.fusion-cadre { padding: 16px; background: #1d1f45; }
.fusion-entete { display: flex; justify-content: center; gap: 10px; margin-bottom: 12px; }
.fusion-stat { min-width: 96px; padding: 6px 12px; border-radius: 12px; background: rgba(255, 255, 255, 0.1); color: #cbd0f0; font-size: 0.82rem; text-align: center; }
.fusion-stat strong { display: block; color: #ffffff; font-size: 1.25rem; }

.fusion-grille {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    width: min(100%, 440px);
    margin: 0 auto;
    padding: 10px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.08);
    touch-action: none;
}

.fusion-case {
    position: relative;
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
    transition: background 0.15s ease;
}

.fusion-case.fusion { animation: fusion-pop 0.25s ease; }
@keyframes fusion-pop { 50% { transform: scale(1.12); } }
.fusion-z { position: absolute; top: 5px; left: 8px; font-size: 0.75rem; font-weight: 800; opacity: 0.75; }
.fusion-symbole { font-size: clamp(1.4rem, 6vw, 2.1rem); font-weight: 900; line-height: 1; }
.fusion-nom { font-size: clamp(0.55rem, 2.2vw, 0.72rem); font-weight: 700; opacity: 0.85; margin-top: 4px; }
.fusion-fleches { margin-top: 12px; }
.fusion-fait { max-width: 640px; margin-left: auto; margin-right: auto; }

/* Memory */
.memory-cadre { padding: 16px; background: #fbfaf8; }
.memory-barre { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 18px; margin-bottom: 12px; color: var(--text-soft); font-size: 0.92rem; }
.memory-barre strong { color: var(--secondary); }
.memory-grille { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }

.memory-carte {
    position: relative;
    min-height: 92px;
    padding: 8px;
    border-radius: 14px;
    border: 2px solid rgba(43, 46, 99, 0.18);
    background: var(--primary);
    color: #ffffff;
    font-weight: 800;
    font-size: clamp(0.78rem, 2.6vw, 1rem);
    line-height: 1.25;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease;
}

.memory-carte:hover { transform: translateY(-2px); }
.memory-dos { font-size: 2rem; color: var(--accent); }
.memory-face { display: none; }
.memory-carte.visible,
.memory-carte.trouvee { background: #ffffff; color: var(--secondary); }
.memory-carte.visible .memory-dos,
.memory-carte.trouvee .memory-dos { display: none; }
.memory-carte.visible .memory-face,
.memory-carte.trouvee .memory-face { display: block; }
.memory-carte.trouvee { border-color: #10b981; background: #e7f8f1; color: #08603f; cursor: default; }

@media (max-width: 560px) {
    .arcade-boite { padding: 18px; }
    .arcade-boite h2 { font-size: 1.15rem; }
    .arcade-texte p { font-size: 0.92rem; }
    .memory-grille { gap: 6px; }
    .memory-carte { min-height: 76px; padding: 4px; }
    .arcade-reglages label { min-width: 0; width: 100%; }
}

/* =====================================================================
   « TU ES SUR EXPOSINUS » : identité du site sur les jeux et articles
===================================================================== */
.bandeau-site {
    background: var(--primary);
    color: #e2e5f7;
    font-size: 0.9rem;
}

.bandeau-site .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 6px 14px;
    padding: 8px 0;
    text-align: center;
}

.bandeau-site strong { color: #ffffff; }
.bandeau-site a { color: #ffd2c2; font-weight: 800; text-decoration: underline; }

.plus-loin {
    margin-top: 34px;
    padding: 26px;
    border-radius: 22px;
    background: linear-gradient(135deg, rgba(43, 46, 99, 0.08), rgba(224, 120, 86, 0.10));
    border: 1px solid rgba(43, 46, 99, 0.14);
}

.plus-loin h2 { font-size: clamp(1.3rem, 3vw, 1.7rem); margin-bottom: 6px; }
.plus-loin > p { color: var(--text-soft); margin-bottom: 16px; }

.plus-loin-grille {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.plus-loin-grille a {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px;
    border-radius: 16px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.plus-loin-grille a:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.plus-loin-grille strong { color: var(--secondary); }
.plus-loin-grille span { color: var(--text-soft); font-size: 0.9rem; }
.plus-loin-grille em { font-style: normal; color: var(--accent-dark); font-weight: 800; margin-top: auto; }

/* =====================================================================
   ARTICLES DE VULGARISATION
===================================================================== */
.article-contenu .chapo { font-size: 1.15rem; color: var(--secondary); font-weight: 600; }
.article-contenu .schema { margin: 22px 0; }
.article-contenu .schema img { width: 100%; height: auto; border-radius: 16px; border: 1px solid rgba(43, 46, 99, 0.12); background: #ffffff; }
.article-contenu .schema figcaption { margin-top: 8px; color: var(--text-soft); font-size: 0.92rem; text-align: center; }

.article-contenu .formule-bloc {
    margin: 16px auto;
    padding: 12px 18px;
    width: fit-content;
    max-width: 100%;
    border-radius: 14px;
    background: var(--bg-soft);
    color: var(--primary);
    font-size: 1.2rem;
    font-weight: 800;
    text-align: center;
    overflow-x: auto;
}

.article-contenu .le-saviez-vous {
    margin: 20px 0;
    padding: 16px 20px;
    border-radius: 16px;
    background: var(--accent-soft);
    border-left: 5px solid var(--accent);
}

.article-contenu .le-saviez-vous strong:first-child { display: block; color: var(--accent-dark); margin-bottom: 4px; }

.article-contenu .a-retenir {
    margin: 26px 0;
    padding: 18px 22px;
    border-radius: 18px;
    background: #ffffff;
    border: 2px solid var(--primary);
}

.article-contenu .a-retenir h2 { margin-top: 0; font-size: 1.2rem; }
.article-contenu .a-retenir ul { margin-bottom: 0; }

.categorie-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    color: #ffffff;
    font-size: 0.84rem;
    font-weight: 800;
}

.article-carte .categorie-badge { align-self: flex-start; padding: 4px 10px; font-size: 0.78rem; }
.article-carte[hidden] { display: none; }
.article-vignette { margin: -22px -22px 6px; aspect-ratio: 16 / 9; overflow: hidden; border-radius: 16px 16px 0 0; background: var(--bg-soft); }
.article-vignette img { width: 100%; height: 100%; object-fit: cover; }

.footer-mission { max-width: 460px; font-size: 0.9rem; }

.laser-cadre { max-width: 540px; margin: 0 auto; }
[data-arcade="laser-miroirs"] .arcade-reglages, [data-arcade="laser-miroirs"] .arcade-info { max-width: 540px; margin-left: auto; margin-right: auto; }

/* =====================================================================
   MENU : « Cours & exercices » mis en avant
===================================================================== */
.nav-links a.nav-cours {
    border: 2px solid var(--accent);
    color: var(--accent-dark);
    font-weight: 800;
}

.nav-links a.nav-cours:hover,
.nav-links a.nav-cours:focus-visible { background: var(--accent); color: #ffffff; }
.nav-links a.nav-cours.actif { background: var(--accent-soft); color: var(--accent-dark); }

/* =====================================================================
   BARRE « CHOISIS TON NIVEAU » (sous le menu, sur toutes les pages)
===================================================================== */
.barre-niveaux {
    position: relative;
    z-index: 900;
    background: linear-gradient(90deg, var(--accent-soft), #eef0f7);
    border-bottom: 1px solid rgba(43, 46, 99, 0.12);
}

.barre-niveaux-int {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px 16px;
    padding: 10px 0;
}

.barre-niveaux-titre { margin: 0; color: var(--secondary); font-size: 0.98rem; }
.barre-niveaux-titre strong { color: var(--primary); }
.barre-niveaux-liste { display: flex; flex-wrap: wrap; gap: 8px; }

.niveau-groupe > summary {
    list-style: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 999px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.22);
    color: var(--primary);
    font-weight: 800;
    font-size: 0.92rem;
    white-space: nowrap;
    cursor: pointer;
    transition: var(--transition);
}

.niveau-groupe > summary::-webkit-details-marker { display: none; }
.niveau-groupe > summary::after { content: "▾"; color: var(--accent); font-size: 0.85em; }
.niveau-groupe > summary:hover { border-color: var(--primary); }
.niveau-groupe[open] > summary,
.niveau-groupe > summary.actif { background: var(--primary); border-color: var(--primary); color: #ffffff; }
.niveau-groupe[open] > summary::after { transform: rotate(180deg); }

.niveau-panneau {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: #ffffff;
    border-bottom: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-md);
}

.niveau-panneau-int {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 14px 26px;
    padding: 16px 0 18px;
}

.niveau-colonne p { margin: 0 0 6px; font-weight: 800; color: var(--secondary); font-size: 0.95rem; }

.niveau-colonne a {
    display: block;
    padding: 6px 10px;
    border-radius: 10px;
    color: var(--primary);
    font-weight: 600;
    transition: var(--transition);
}

.niveau-colonne a::after { content: " →"; color: var(--accent); }
.niveau-colonne a:hover,
.niveau-colonne a[aria-current="page"] { background: var(--bg-soft); color: var(--primary-dark); }

@media (max-width: 760px) {
    .barre-niveaux-int { justify-content: flex-start; padding: 8px 0 10px; }
    .barre-niveaux-titre { font-size: 0.9rem; width: 100%; }
    .niveau-groupe > summary { padding: 6px 11px; font-size: 0.86rem; }
    .niveau-panneau { max-height: 70vh; overflow-y: auto; }
}

/* =====================================================================
   JEUX ET ARTICLES : lien vers le chapitre du cours
===================================================================== */
.lien-cours {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-top: 18px;
    padding: 16px 18px;
    max-width: 860px;
    border-radius: 18px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-sm);
}

.lien-cours-etiquette { font-size: 0.82rem; font-weight: 800; color: var(--text-soft); text-transform: uppercase; letter-spacing: 0.04em; }

.lien-cours-principal {
    display: inline-block;
    padding: 10px 16px;
    border-radius: 14px;
    background: var(--primary);
    color: #ffffff;
    font-weight: 800;
    font-size: 1.02rem;
    line-height: 1.35;
    transition: var(--transition);
}

.lien-cours-principal small { display: block; color: #ffd2c2; font-size: 0.8rem; font-weight: 700; }
.lien-cours-principal:hover { background: var(--primary-dark); transform: translateY(-1px); }

.lien-cours-autres { display: flex; flex-wrap: wrap; gap: 8px; }

.lien-cours-autres a {
    padding: 6px 12px;
    border-radius: 12px;
    background: var(--bg-soft);
    border: 1px solid rgba(43, 46, 99, 0.12);
    color: var(--secondary);
    font-size: 0.88rem;
    line-height: 1.35;
    transition: var(--transition);
}

.lien-cours-autres a strong { color: var(--accent-dark); margin-right: 4px; }
.lien-cours-autres a:hover { border-color: var(--primary); background: #ffffff; }

/* Chapitre ouvert depuis un lien direct */
.chapter-list > details { scroll-margin-top: 100px; }
.chapter-list > details.chapitre-cible { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(224, 120, 86, 0.25); }

/* =====================================================================
   ANIMATIONS AMUSANTES (assets/js/animations.js)
===================================================================== */

/* Générique de transition entre les pages, façon « Cercle trigonométrique ».
   Sortie (assets/js/animations.js) : trois bandes balaient l'écran (orange, crème,
   bleu marine), le point M dessine le « e » (la barre puis les trois quarts du cercle),
   la queue se déroule en sinusoïde et le nom ExpoSinus apparaît dessous.
   Arrivée (html.entree-animee) : le logo complet s'envole vers la caméra et les trois
   volets repartent vers la droite pour découvrir la nouvelle page. */
:root { --taille-generique: min(66vw, 460px, 110vh); }

.stinger {
    position: fixed;
    inset: 0;
    z-index: 99999;
    pointer-events: none;
    overflow: hidden;
}

.stinger-bande {
    position: absolute;
    inset: 0;
    clip-path: polygon(-50% 0, -5% 0, -25% 100%, -50% 100%);
    animation: bande-entre 0.3s cubic-bezier(0.77, 0, 0.18, 1) forwards;
}
.stinger-bande.b1 { background: #e07856; }
.stinger-bande.b2 { background: #faf8f5; animation-delay: 0.04s; }
.stinger-bande.b3 { background: #2b2e63; animation-delay: 0.08s; }

.stinger-logo {
    position: absolute;
    left: 50%;
    top: 50%;
    width: var(--taille-generique);
    transform: translate(-50%, -50%);
}
.stinger-logo svg { display: block; width: 100%; height: auto; overflow: visible; }
.stinger .logo-dessin, .stinger .logo-nom { opacity: 0; }
/* Logos de la page redessinés au survol (animations.js, section 1 bis) */
svg.logo-anime { overflow: visible; cursor: pointer; }

@keyframes bande-entre { to { clip-path: polygon(-50% 0, 125% 0, 105% 100%, -50% 100%); } }

/* Arrivée sur la nouvelle page (classe posée par le petit script de l'en-tête) */
html.entree-animee::before,
html.entree-animee body::before,
html.entree-animee body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    clip-path: polygon(-5% 0, 130% 0, 130% 100%, -25% 100%);
    animation: volet-part 0.42s cubic-bezier(0.77, 0, 0.18, 1) forwards;
}
html.entree-animee::before { z-index: 99999; background: #2b2e63; animation-delay: 0.14s; }
html.entree-animee body::before { z-index: 99998; background: #e07856; animation-delay: 0.2s; }
html.entree-animee body::after { z-index: 99997; background: #faf8f5; animation-delay: 0.25s; }

html.entree-animee::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 100000;
    pointer-events: none;
    background: url("../images/logo-nom-negatif.svg") no-repeat center / var(--taille-generique) auto;
    animation: logo-part 0.34s 0.1s cubic-bezier(0.55, 0, 0.75, 0.3) forwards;
}

@keyframes volet-part { to { clip-path: polygon(125% 0, 130% 0, 130% 100%, 105% 100%); } }
@keyframes logo-part { to { opacity: 0; transform: scale(1.7); } }

/* Apparition des cartes, avec un petit rebond */
.revele {
    opacity: 0;
    transform: translateY(26px) scale(0.97);
}

.revele.visible {
    opacity: 1;
    transform: none;
    transition: opacity 0.5s ease, transform 0.65s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Petits plaisirs au survol */
.brand img { transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1); }
.brand:hover img { transform: rotate(-4deg) scale(1.06); }

.jeu-carte:hover .icone-ronde,
.decouvrir-carte:hover .icone-ronde { animation: frisson 0.6s ease; }

@keyframes frisson {
    0%, 100% { transform: rotate(0); }
    20% { transform: rotate(-12deg) scale(1.15); }
    40% { transform: rotate(10deg) scale(1.15); }
    60% { transform: rotate(-6deg) scale(1.08); }
    80% { transform: rotate(4deg); }
}

.btn:active,
.niveau-groupe > summary:active,
.filtres button:active { transform: scale(0.94); }

.niveau-groupe > summary:hover { transform: translateY(-2px); }

.niveau-groupe[open] .niveau-panneau,
.nav-groupe[open] .nav-sous-menu { animation: panneau-tombe 0.35s cubic-bezier(0.34, 1.56, 0.64, 1); transform-origin: top center; }

@keyframes panneau-tombe { from { opacity: 0; transform: translateY(-10px) scaleY(0.92); } to { opacity: 1; transform: none; } }

.hero-mini h1 span { animation: titre-vague 2.6s ease-in-out infinite; }
@keyframes titre-vague { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }

/* (le logo de l'accueil ne flotte plus : il se dessine comme dans le générique, au chargement et au survol) */
@keyframes logo-flotte { 0%, 100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-10px) rotate(-2deg); } }

/* Confettis de victoire */
.confettis { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 99998; pointer-events: none; }

/* Pour ceux qui préfèrent moins de mouvement */
@media (prefers-reduced-motion: reduce) {
    .stinger, html.entree-animee::before, html.entree-animee::after,
    html.entree-animee body::before, html.entree-animee body::after { display: none; }
    .revele { opacity: 1; transform: none; }
    .hero-mini h1 span, .hero-logo { animation: none; }
    .jeu-carte:hover .icone-ronde, .decouvrir-carte:hover .icone-ronde { animation: none; }
}

@media (min-width: 1281px) {
    .nav-links a { padding: 8px 11px; }
    .nav-groupe > summary { padding: 8px 11px; }
}

/* Écrans moyens : menu un peu plus compact pour tout faire tenir sur une ligne */
@media (min-width: 1281px) and (max-width: 1440px) {
    .nav-links a, .nav-groupe > summary { font-size: 0.86rem; padding: 8px 9px; }
    .navbar { gap: 12px; }
}

/* Lecteur de corrigé : rappel, voile de protection, pas d'appui long */
.viewer-rappel {
    margin: 0;
    padding: 10px 16px;
    background: #fff6e0;
    border-bottom: 1px solid #f1d9a0;
    color: #6b4a00;
    font-size: 0.92rem;
    text-align: center;
}
.viewer-rappel a { color: inherit; text-decoration: underline; }
.viewer-page canvas {
    -webkit-touch-callout: none;
    -webkit-user-drag: none;
}
.viewer-pages.voile .viewer-page canvas {
    filter: blur(18px) grayscale(0.4);
    transition: filter 0.12s ease;
}
.viewer-voile {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: rgba(20, 22, 58, 0.35);
}
.viewer-voile[hidden] { display: none; }
.viewer-voile-carte {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    max-width: 420px;
    padding: 22px 26px;
    border-radius: 18px;
    background: #ffffff;
    box-shadow: var(--shadow-md);
    text-align: center;
    color: var(--text);
}
.viewer-voile-carte strong { font-size: 1.1rem; }
.viewer-voile-icone { font-size: 2.2rem; line-height: 1; }
@media (prefers-reduced-motion: reduce) {
    .viewer-pages.voile .viewer-page canvas { transition: none; }
}

/* =====================================================================
   ANIMATIONS INTERACTIVES (assets/js/labo.js + assets/js/animations/*.js)
===================================================================== */
.labo-zone {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    padding: 18px;
    border-radius: 22px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-md);
}
@media (min-width: 1000px) {
    .labo-zone.labo-pret { grid-template-columns: minmax(0, 1fr) 300px; align-items: start; }
}
.labo-scene { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.labo-canvas {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 16px;
    background: #faf8f5;
    border: 1px solid rgba(43, 46, 99, 0.1);
}
.labo-canvas.labo-saisissable { cursor: grab; }
.labo-canvas.labo-tenu { cursor: grabbing; }
.labo-barre { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.labo-barre .btn { padding: 8px 16px; font-size: 0.95rem; }
.labo-vitesse {
    padding: 8px 10px;
    border-radius: 999px;
    border: 1px solid rgba(43, 46, 99, 0.2);
    background: #ffffff;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.9rem;
}
.labo-mesures { display: flex; flex-wrap: wrap; gap: 8px; }
.labo-mesures:empty { display: none; }
.labo-mesures > span {
    display: flex;
    flex-direction: column;
    padding: 6px 12px;
    border-radius: 12px;
    background: #eef0f7;
    min-width: 96px;
}
.labo-mesures > span > small { color: var(--text-soft); font-size: 0.78rem; }
.labo-mesures > span > strong { color: var(--primary); font-variant-numeric: tabular-nums; }
.labo-panneau { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.labo-commandes > * { min-width: 0; }
.labo-commandes { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
@media (min-width: 1000px) { .labo-commandes { grid-template-columns: 1fr; } }
.labo-curseur label, .labo-choix label {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--secondary);
}
.labo-valeur { color: var(--accent-dark); font-weight: 800; font-variant-numeric: tabular-nums; white-space: nowrap; }
.labo-curseur input[type="range"] { width: 100%; accent-color: #e07856; margin-top: 4px; }
/* Valeur d'un curseur : un clic permet de la taper au clavier */
.labo-valeur[data-saisie] { cursor: text; border-bottom: 1px dashed rgba(180, 83, 47, 0.55); border-radius: 3px; padding: 0 2px; }
.labo-valeur[data-saisie]:hover, .labo-valeur[data-saisie]:focus-visible { background: rgba(224, 120, 86, 0.14); outline: none; }
.labo-valeur.labo-borne { color: #b4532f; animation: frisson 0.5s ease; }
.labo-saisie { width: 8.5em; max-width: 55%; font: inherit; font-weight: 800; text-align: right; padding: 1px 6px; border: 2px solid #e07856; border-radius: 6px; background: #fff; color: #2b2e63; }
.labo-curseur.inactif { opacity: 0.45; }
.labo-choix { display: flex; flex-direction: column; gap: 4px; }
.labo-choix select {
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid rgba(43, 46, 99, 0.2);
    background: #ffffff;
    font-size: 0.95rem;
}
.labo-case { display: flex; align-items: center; gap: 8px; font-size: 0.92rem; font-weight: 600; color: var(--secondary); cursor: pointer; }
.labo-case input { width: 18px; height: 18px; accent-color: #2b2e63; }
.labo-groupe { border: 1px solid rgba(43, 46, 99, 0.14); border-radius: 14px; padding: 10px 12px 12px; display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; margin: 0; min-width: 0; }
.labo-groupe legend { padding: 0 6px; font-weight: 800; color: var(--primary); font-size: 0.9rem; }
.labo-note { margin: 0; font-size: 0.9rem; color: var(--text-soft); }
.labo-defis { padding: 14px 16px; border-radius: 16px; background: #fdf1ec; border: 1px solid rgba(224, 120, 86, 0.3); }
.labo-defis h3 { font-size: 1rem; margin: 0 0 8px; color: var(--accent-dark); }
.labo-defis ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.labo-defis li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.92rem; line-height: 1.4; }
.labo-defi-case {
    flex: 0 0 20px;
    height: 20px;
    margin-top: 1px;
    border-radius: 6px;
    border: 2px solid rgba(224, 120, 86, 0.6);
    background: #ffffff;
}
.labo-defis li.reussi { color: var(--text-soft); }
.labo-defis li.reussi span:last-child { text-decoration: line-through; }
.labo-defis li.reussi .labo-defi-case { background: #10b981; border-color: #10b981; }
.labo-defis li.reussi .labo-defi-case::after { content: "✓"; display: block; color: #ffffff; font-weight: 900; font-size: 0.8rem; text-align: center; line-height: 16px; }
.labo-defis-etat { margin: 10px 0 0; font-weight: 700; color: var(--accent-dark); font-size: 0.92rem; }
.labo-defis-etat:empty { display: none; }

/* Liste des animations */
.anim-carte { position: relative; }
.anim-carte .apercu-categorie { align-self: flex-start; }
.anim-section[hidden] { display: none; }

/* Menu : « Accueil » seulement dans le menu mobile (sur ordinateur, le logo ramène à l'accueil) */
@media (min-width: 1281px) {
    .nav-links a.nav-accueil { display: none; }
}
.titre-section .compte { font-size: 0.8em; color: var(--text-soft); font-weight: 600; }

/* Articles : encadrés « Mythe ou réalité ? », « Essaie chez toi » et « Si tu ne retiens qu'une chose » */
.article-contenu .mythe,
.article-contenu .experience {
    margin: 20px 0;
    padding: 16px 20px;
    border-radius: 16px;
}
.article-contenu .mythe { background: #eef0f7; border-left: 5px solid var(--primary); }
.article-contenu .experience { background: #ecfdf5; border-left: 5px solid #10b981; }
.article-contenu .mythe strong:first-child,
.article-contenu .experience strong:first-child { display: block; margin-bottom: 4px; }
.article-contenu .mythe strong:first-child { color: var(--primary); }
.article-contenu .experience strong:first-child { color: #0f766e; }
.article-contenu .une-chose {
    margin: 26px 0;
    padding: 18px 22px;
    border-radius: 18px;
    background: linear-gradient(135deg, #2b2e63, #3d4185);
    color: #ffffff;
}
.article-contenu .une-chose h2 { margin: 0 0 6px; font-size: 1.15rem; color: #ffd9cc; }
.article-contenu .une-chose p { margin: 0; color: #ffffff; font-size: 1.05rem; }
.article-contenu .lien-animation {
    display: flex;
    gap: 12px;
    align-items: center;
    margin: 20px 0;
    padding: 14px 18px;
    border-radius: 16px;
    background: #fff7f3;
    border: 1px dashed var(--accent);
    font-weight: 600;
}
.article-contenu .lien-animation::before { content: "🔬"; font-size: 1.5rem; }

/* Dans les chapitres des cours : animations, jeux et articles liés */
.chapitre-plus {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 12px 0 4px;
    padding: 12px 14px;
    border-radius: 14px;
    background: #fdf1ec;
    border: 1px dashed rgba(224, 120, 86, 0.45);
}
.chapitre-plus-titre { width: 100%; font-size: 0.82rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.04em; color: var(--accent-dark); }
.chapitre-plus a {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border-radius: 999px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.14);
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 700;
    transition: var(--transition);
}
.chapitre-plus a:hover { border-color: var(--accent); transform: translateY(-1px); }
.chapitre-plus small { color: var(--text-soft); font-weight: 600; }

/* Lettre surmontée d'une flèche de vecteur (v⃗) : voir animations.js et site.py */
/* line-height: 1 : la flèche se place juste au-dessus de la lettre, quel que soit l'interligne du paragraphe */
.vec { position: relative; display: inline-block; line-height: 1; }
.vec::after {
    content: "→";
    position: absolute;
    left: -0.1em;
    right: -0.1em;
    top: -0.62em;
    font-size: 0.72em;
    font-style: normal;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    pointer-events: none;
}
/* Vecteur à deux lettres (AB⃗) : un trait qui couvre les deux lettres + une pointe */
.vec.vec2::after {
    content: "";
    left: 0.04em;
    right: 0.12em;
    top: -0.14em;
    height: 0;
    border-top: 0.085em solid currentColor;
}
.vec.vec2::before {
    content: "";
    position: absolute;
    right: 0.02em;
    top: -0.27em;
    border-left: 0.3em solid currentColor;
    border-top: 0.14em solid transparent;
    border-bottom: 0.14em solid transparent;
    pointer-events: none;
}

/* Lecteur des documents gratuits (pages/document.html) */
.viewer-info { color: #ffffff; opacity: 0.85; font-size: 0.85rem; font-weight: 700; margin-right: 4px; white-space: nowrap; }
.viewer-gratuit { margin: 0; padding: 14px 16px 30px; text-align: center; color: var(--text-soft); font-size: 0.92rem; background: #e9e7ef; }
@media (max-width: 600px) {
    .viewer-bar { padding: 10px 12px; gap: 8px; }
    .viewer-bar h1 { order: 3; width: 100%; font-size: 0.92rem; }
    .viewer-pages { padding: 12px 6px 30px; gap: 10px; }
}

/* =====================================================================
   VERSION TÉLÉPHONE
===================================================================== */
/* Barre de navigation fixée en bas de l'écran, comme une application */
.barre-mobile { display: none; }
.barre-niveaux-titre .titre-court { display: none; }

@media (max-width: 760px) {
    .barre-mobile {
        display: flex;
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 950;
        justify-content: space-around;
        padding: 4px 4px calc(4px + env(safe-area-inset-bottom));
        background: rgba(255, 255, 255, 0.97);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        border-top: 1px solid rgba(43, 46, 99, 0.12);
        box-shadow: 0 -6px 20px rgba(15, 23, 42, 0.08);
    }
    .barre-mobile a {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        min-height: 52px;
        border-radius: 14px;
        color: #5b6178;
        font-size: 0.72rem;
        font-weight: 700;
        -webkit-tap-highlight-color: transparent;
    }
    .barre-mobile svg { width: 25px; height: 25px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
    .barre-mobile a[aria-current="page"],
    .barre-mobile a.actif { color: var(--accent-dark); }
    .barre-mobile a[aria-current="page"] svg,
    .barre-mobile a.actif svg { stroke-width: 2.5; }
    .barre-mobile a:active { background: #fdf1ec; }
    body { padding-bottom: calc(62px + env(safe-area-inset-bottom)); }
    /* Clavier ouvert : la barre se cache pour laisser la place au champ de saisie */
    body:has(input:focus, textarea:focus, select:focus) .barre-mobile { display: none; }

    /* Barre « choisis ton niveau » sur une seule ligne qui défile au doigt */
    .barre-niveaux-int { flex-direction: column; flex-wrap: nowrap; align-items: stretch; gap: 6px; padding: 8px 0 8px; }
    .barre-niveaux-titre { font-size: 0.86rem; }
    .barre-niveaux-titre .titre-long { display: none; }
    .barre-niveaux-titre .titre-court { display: inline; }
    .barre-niveaux-liste {
        flex-wrap: nowrap;
        overflow-x: auto;
        margin: 0 -16px;
        padding: 2px 16px 4px;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
    }
    .barre-niveaux-liste::-webkit-scrollbar { display: none; }
    .niveau-groupe { flex: 0 0 auto; }

    /* Panneaux des jeux : le texte d'accueil n'est jamais coupé (le cadre s'agrandit tant que le panneau est affiché) */
    .arcade-cadre:has(> .arcade-panneau:not([hidden])) { min-height: 360px; }
    .arcade-panneau { padding: 8px; place-items: center; overflow-y: auto; }
    .arcade-boite { padding: 14px 14px 12px; border-radius: 16px; }
    .arcade-boite h2 { font-size: 1.05rem; margin-bottom: 6px; }
    .arcade-texte p { font-size: 0.86rem; margin-bottom: 6px; line-height: 1.45; }
    .arcade-boite .btn { min-height: 40px; padding: 8px 14px; }
}
@media print { .barre-mobile { display: none !important; } }

/* Bouton « Plein écran » des animations et des jeux */
.zone-outils { display: flex; justify-content: flex-end; margin: 0 0 8px; }
.labo-zone > .zone-outils { grid-column: 1 / -1; margin: 0; }
.bouton-plein-ecran {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid rgba(43, 46, 99, 0.22);
    background: #ffffff;
    color: var(--primary);
    font-weight: 800;
    font-size: 0.86rem;
    cursor: pointer;
}
.bouton-plein-ecran:hover { border-color: var(--primary); }
.plein-ecran {
    position: fixed !important;
    inset: 0;
    z-index: 2000;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    max-width: none !important;
    margin: 0 !important;
    padding: 10px !important;
    overflow-y: auto;
    border-radius: 0 !important;
    background: #faf8f5 !important;
}
html.mode-plein-ecran, html.mode-plein-ecran body { overflow: hidden; }
.plein-ecran .labo-canvas,
.plein-ecran .arcade-cadre { width: 100%; max-width: min(100%, calc((100dvh - 130px) * var(--ratio, 1.78))); margin-left: auto; margin-right: auto; }
.labo-zone.plein-ecran .labo-scene { align-items: stretch; }
@media (orientation: landscape) {
    .labo-zone.plein-ecran { grid-template-columns: minmax(0, 1fr) minmax(220px, 30%); align-items: start; gap: 12px; }
    .labo-zone.plein-ecran .labo-commandes { grid-template-columns: 1fr; }
    .plein-ecran .labo-canvas { max-width: min(100%, calc((100dvh - 120px) * var(--ratio, 1.78))); }
}

/* « Comment jouer » au-dessus des jeux */
.comment-jouer {
    margin: 0 0 18px;
    border-radius: 18px;
    background: #ffffff;
    border: 2px solid rgba(224, 120, 86, 0.45);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.comment-jouer > summary {
    list-style: none;
    cursor: pointer;
    padding: 14px 18px;
    background: #fdf1ec;
    color: var(--accent-dark);
    font-weight: 900;
    font-size: 1.1rem;
}
.comment-jouer > summary::-webkit-details-marker { display: none; }
.comment-jouer > summary small { font-weight: 600; font-size: 0.78rem; color: var(--text-soft); margin-left: 6px; }
.comment-jouer:not([open]) > summary small::after { content: " — touche pour déplier"; }
.cj-corps { padding: 14px 18px 16px; }
.cj-corps p { margin: 0 0 10px; }
.cj-corps ol { margin: 0 0 12px; padding-left: 22px; display: grid; gap: 6px; }
.cj-corps li { line-height: 1.5; }
.cj-commandes { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 10px; margin-bottom: 10px; }
.cj-commandes p { margin: 0; padding: 10px 12px; border-radius: 12px; background: #eef0f7; font-size: 0.94rem; }
.cj-appareil { display: block; font-weight: 800; color: var(--primary); margin-bottom: 2px; }
.cj-astuce { color: var(--text-soft); font-size: 0.94rem; }
.mode-emploi { margin: 0 0 12px; padding: 12px 16px; border-radius: 14px; background: #eef0f7; color: var(--secondary); font-size: 0.95rem; }

/* Bouton ± (nombres négatifs) des jeux à réponse chiffrée */
.jeu-signe, .arcade-signe { min-width: 52px; font-size: 1.25rem !important; font-weight: 900; }

/* Écran peu haut (téléphone à l'horizontale) : panneaux des jeux compacts et jamais coupés */
@media (max-height: 520px) {
    .arcade-panneau { padding: 6px; overflow-y: auto; }
    .arcade-boite { padding: 10px 14px; border-radius: 14px; }
    .arcade-boite h2 { font-size: 1rem; margin-bottom: 4px; }
    .arcade-texte p { font-size: 0.84rem; margin-bottom: 4px; line-height: 1.4; }
    .arcade-boite .jeu-actions { margin-top: 6px; }
    .arcade-boite .btn { min-height: 36px; padding: 6px 14px; }
    .arcade-cadre:has(> .arcade-panneau:not([hidden])) { min-height: min(300px, calc(100dvh - 70px)); }
}

/* Page « Animations » : vue par classe et chapitre / vue par notion */
.anim-vues { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
.anim-vues button {
    padding: 11px 20px;
    border-radius: 999px;
    border: 2px solid rgba(43, 46, 99, 0.2);
    background: #ffffff;
    color: var(--primary);
    font-weight: 800;
    font-size: 1rem;
    cursor: pointer;
}
.anim-vues button[aria-selected="true"] { background: var(--primary); border-color: var(--primary); color: #ffffff; }
.anim-vue[hidden] { display: none; }
.anim-sommaire { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.anim-sommaire a {
    padding: 7px 14px;
    border-radius: 999px;
    background: #fdf1ec;
    border: 1px solid rgba(224, 120, 86, 0.35);
    color: var(--accent-dark);
    font-weight: 800;
    font-size: 0.92rem;
}
.anim-sommaire small { color: var(--text-soft); font-weight: 600; }
.anim-niveau { margin-bottom: 30px; scroll-margin-top: 90px; }
.anim-matiere {
    margin: 0 0 16px;
    padding: 16px 18px;
    border-radius: 18px;
    background: #ffffff;
    border: 1px solid rgba(43, 46, 99, 0.12);
    box-shadow: var(--shadow-sm);
}
.anim-matiere h3 { margin: 0 0 10px; font-size: 1.1rem; color: var(--primary); }
.anim-chapitre { padding: 10px 0; border-top: 1px solid rgba(43, 46, 99, 0.08); }
.anim-chapitre:first-of-type { border-top: 0; }
.anim-chapitre-titre { display: inline-block; margin-bottom: 8px; font-weight: 800; color: var(--secondary); }
.anim-chapitre-titre::after { content: " →"; color: var(--accent); }
.anim-puces { display: flex; flex-wrap: wrap; gap: 8px; }
.anim-puces a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border-radius: 12px;
    background: #eef0f7;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.92rem;
    transition: var(--transition);
}
.anim-puces a.principal { background: #fdf1ec; border: 1px solid rgba(224, 120, 86, 0.35); }
.anim-puces a:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
@media (max-width: 760px) {
    .anim-vues button { flex: 1 1 auto; font-size: 0.92rem; padding: 10px 12px; }
    .anim-matiere { padding: 12px 12px; }
    .anim-puces a { font-size: 0.86rem; padding: 6px 10px; }
}

/* Lecteur de documents : aperçu local (site ouvert depuis les dossiers de l'ordinateur) */
.viewer-local { display: block; width: 100%; height: 78vh; margin-top: 14px; border: 1px solid #e5e2dc; border-radius: 12px; background: #fff; }

/* Fonction tapée par l'élève dans les animations de maths (lab.saisieFonction) */
.labo-fonction { display: grid; gap: 6px; padding: 10px 12px; border: 2px dashed rgba(224, 120, 86, 0.55); border-radius: 12px; background: #fffaf6; }
.labo-fonction[hidden] { display: none; }
.labo-fonction > label { font-weight: 800; color: #2b2e63; }
.labo-fonction-ligne { display: flex; gap: 8px; min-width: 0; }
.labo-fonction-ligne input { flex: 1; min-width: 0; font: 600 1rem/1.3 Consolas, "Cascadia Mono", Menlo, monospace; padding: 7px 10px; border: 2px solid #cbd5e1; border-radius: 8px; background: #fff; color: #0f172a; }
.labo-fonction-ligne input:focus { border-color: #e07856; outline: none; }
.labo-fonction-ok { flex-shrink: 0; padding: 6px 14px; }
.labo-fonction-fenetre { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 0.9rem; color: #475569; }
.labo-fonction-fenetre input { width: 5.5em; padding: 3px 6px; border: 1px solid #cbd5e1; border-radius: 6px; font: inherit; text-align: center; }
.labo-fonction-message { margin: 0; font-weight: 700; color: #2b2e63; overflow-wrap: anywhere; }
.labo-fonction-message.erreur { color: #b42318; }
.labo-fonction-exemples { display: flex; flex-wrap: wrap; align-items: center; gap: 5px; font-size: 0.85rem; color: #475569; }
.labo-fonction-exemple { border: 1px solid #e5c6b8; background: #fff; color: #2b2e63; border-radius: 999px; padding: 2px 9px; font: 600 0.82rem/1.5 Consolas, Menlo, monospace; cursor: pointer; }
.labo-fonction-exemple:hover { background: #fde4da; }
.labo-fonction-aide { margin: 0; font-size: 0.8rem; }

/* Éléments masqués du panneau de commandes (groupes, saisies…) */
.labo-panneau [hidden] { display: none !important; }

/* Lecteur des documents gratuits : il prend toute la fenêtre (menus, barre des niveaux et pied de page masqués) */
body:has(#lecteur-document) .site-header,
body:has(#lecteur-document) .barre-niveaux,
body:has(#lecteur-document) .site-footer,
body:has(#lecteur-document) .barre-mobile { display: none !important; }
body:has(#lecteur-document) { padding-bottom: 0 !important; background: #e9e7ef; }
#lecteur-document .viewer-pages { min-height: calc(100vh - 64px); }
#lecteur-document .viewer-gratuit { padding-bottom: calc(18px + env(safe-area-inset-bottom)); }
.viewer-zoom button[aria-pressed="true"] { background: #e07856; border-color: #e07856; }

/* Ligne « Animations » d'un chapitre de cours (à côté de Cours, Fiche…) et page des animations d'un cours */
.pdf-row-anim { background: linear-gradient(90deg, rgba(224, 120, 86, 0.08), rgba(224, 120, 86, 0.02)); border-color: rgba(224, 120, 86, 0.35) !important; }
.anim-cours-chapitre { scroll-margin-top: 96px; }
.anim-sommaire[hidden], .anim-cours-filtre[hidden], .anim-cours-chapitre[hidden] { display: none; }
.anim-cours-chapitre.seul > h2, .anim-cours-chapitre.seul > .anim-cours-lien { display: none; }
.anim-cours-lien { margin: -4px 0 14px; }
.anim-cours-retour { margin: 0 0 16px; }
.anim-cours-filtre { margin: 0 0 18px; padding: 10px 14px; border-radius: 12px; background: #fff4ee; border: 1px solid rgba(224, 120, 86, 0.3); font-weight: 600; }
.anim-cours-toutes { margin-top: 26px; text-align: center; }

/* Formules en LaTeX (KaTeX) dans les animations : L.latex() / L.maths() de labo.js */
.labo-zone .katex { font-size: 1.08em; }
.labo-zone .katex-display { margin: 0.3em 0; overflow-x: auto; overflow-y: hidden; padding: 2px 0; }
.tex-brut { font-family: ui-monospace, Consolas, monospace; font-size: 0.9em; }

/* Cartes « comme dans les fiches de révision » (L.fiche de labo.js) : onglet coloré, formule encadrée, légende */
.fiche-cartes { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 18px 14px; margin-top: 10px; }
.fiche-carte { --fc: #c8862f; --fo: #b9772c; --ff: #fffaf1;
    position: relative; border: 1.5px solid var(--fc); border-radius: 8px; background: var(--ff); text-align: left;
    padding: 0 12px 9px; color: #1d1f45; font-size: 0.93rem; line-height: 1.5; min-width: 0; }
.fiche-t-loi { --fc: #1f8a77; --fo: #1b7f6d; --ff: #eef8f5; }
.fiche-t-definition { --fc: #3b6ea8; --fo: #2f5f96; --ff: #eef4fb; }
.fiche-t-propriete { --fc: #2f8a55; --fo: #23824a; --ff: #eff8f2; }
.fiche-t-theoreme { --fc: #12705f; --fo: #11695e; --ff: #eaf5f3; }
.fiche-t-methode { --fc: #2a8396; --fo: #1f7a8c; --ff: #ecf6f8; }
.fiche-t-remarque { --fc: #d3d8e0; --fo: #e6e9ee; --ff: #f7f8fa; }
.fiche-t-piege { --fc: #d0564a; --fo: #b83227; --ff: #fdf1f0; }
/* l'onglet est posé sur le bord (dans le flux : un titre sur deux lignes pousse le contenu au lieu de le chevaucher) */
.fiche-onglet { position: relative; top: -11px; display: inline-block; margin-bottom: -5px; background: var(--fo); color: #fff;
    font-size: 0.74rem; font-weight: 700; padding: 2px 10px; border-radius: 4px; line-height: 1.5; max-width: 100%; }
.fiche-carte > :first-child:not(.fiche-onglet) { margin-top: 12px; }
.fiche-t-remarque .fiche-onglet { color: #4a5160; }
.fiche-onglet .katex { font-size: 1em; }
.fiche-usage { font-style: italic; font-size: 0.8rem; color: #6b7280; margin-bottom: 3px; }
.fiche-texte { margin: 2px 0; }
.fiche-formule { text-align: center; margin: 6px 0 4px; overflow-x: auto; overflow-y: hidden; }
.fiche-cadre { display: inline-block; border: 1.5px solid var(--fc); background: #fff; padding: 4px 12px; border-radius: 2px; }
.fiche-legende { margin: 4px 0 2px; font-size: 0.9rem; }
.fiche-legende > div { margin: 1px 0; }
.fiche-symbole { font-weight: 700; display: inline-block; min-width: 1.6em; }
.fiche-unite { color: #8a8f9c; }
.fiche-calcul { margin-top: 7px; padding: 5px 10px; background: rgba(255, 255, 255, 0.75); border-left: 3px solid var(--fc);
    border-radius: 6px; overflow-x: auto; overflow-y: hidden; }
.fiche-calcul-titre { font-size: 0.68rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.04em; color: #7b8090; margin-right: 6px; }
.fiche-mention { font-size: 0.82rem; margin-top: 4px; }
.fiche-condition b { color: #1f8a5a; }
.fiche-sertA b { color: #b9772c; }
.fiche-attention b { color: #c0392b; }
.fiche-statut b { color: #6b4f2a; }

/* =====================================================================
   MODE SOMBRE (bouton ☀️ / 🌙 de l'en-tête, assets/js/menu.js ; choix gardé dans localStorage
   « exposinus-theme », sinon réglage de l'appareil). Couleurs du logo : bleu marine #2b2e63 / #1d1f45,
   orange #e07856, crème #faf8f5. Les animations, les jeux et les lecteurs de documents restent clairs
   (« tableaux blancs » : leurs dessins sont prévus sur fond clair).
===================================================================== */
html[data-theme="dark"] {
    color-scheme: dark;
    --bg: #14163a;
    --bg-soft: #20234f;
    --surface: rgba(33, 36, 82, 0.92);
    --surface-strong: #1f2250;
    --text: #f2ede7;
    --text-soft: #b9bcdf;
    --border: rgba(170, 176, 235, 0.20);
    --primary: #c9ccf7;
    --primary-dark: #e6e7ff;
    --primary-fond: #3b3f8a;
    --secondary: #ebe8f6;
    --accent: #e07856;
    --accent-dark: #f4a385;
    --accent-soft: rgba(224, 120, 86, 0.16);
    --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 18px 45px rgba(0, 0, 0, 0.40);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.45);
    --logo-fonce: #ffffff;
}
html[data-theme="dark"] body { background: #14163a; color: var(--text); }
html[data-theme="dark"] h1, html[data-theme="dark"] h2, html[data-theme="dark"] h3, html[data-theme="dark"] h4 { color: #f6f2ec; }

/* En-tête, menu, barre des niveaux, barre du bas sur téléphone */
html[data-theme="dark"] .site-header:has(> .navbar) { background: rgba(20, 22, 58, 0.94); border-bottom-color: rgba(170, 176, 235, 0.16); box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35); }
html[data-theme="dark"] .nav-links, html[data-theme="dark"] .nav-sous-menu { background: #1b1e48; border-color: rgba(170, 176, 235, 0.18); }
html[data-theme="dark"] .nav-links a, html[data-theme="dark"] .nav-groupe > summary { color: #e8e6f5; }
html[data-theme="dark"] .nav-links a:hover, html[data-theme="dark"] .nav-links a:focus-visible { background: #2b2e63; color: #ffffff; }
html[data-theme="dark"] .nav-links a.nav-compte { background: #e07856; color: #ffffff; }
html[data-theme="dark"] .nav-links a.nav-compte:hover { background: #c9623f; }
html[data-theme="dark"] .mobile-menu-btn { background: #20234f; color: #f2ede7; border-color: rgba(170, 176, 235, 0.25); }
html[data-theme="dark"] .barre-niveaux { background: linear-gradient(90deg, rgba(224, 120, 86, 0.14), #1b1e48); border-bottom-color: rgba(170, 176, 235, 0.14); }
html[data-theme="dark"] .niveau-groupe > summary { background: #20234f; color: #f2ede7; border-color: rgba(170, 176, 235, 0.22); }
html[data-theme="dark"] .niveau-groupe > summary.actif, html[data-theme="dark"] .niveau-groupe[open] > summary { background: #e07856; border-color: #e07856; color: #ffffff; }
html[data-theme="dark"] .niveau-panneau { background: #1b1e48; border-color: rgba(170, 176, 235, 0.18); }
html[data-theme="dark"] .barre-mobile { background: rgba(20, 22, 58, 0.97); border-top-color: rgba(170, 176, 235, 0.18); }
html[data-theme="dark"] .barre-mobile a { color: #b9bcdf; }
html[data-theme="dark"] .barre-mobile a[aria-current="page"], html[data-theme="dark"] .barre-mobile a.actif { color: #f4a385; }

/* Boutons qui avaient le bleu marine en fond : ils gardent un bleu lisible sur fond sombre */
html[data-theme="dark"] .auth-tabs button[aria-selected="true"], html[data-theme="dark"] .filtres button[aria-pressed="true"],
html[data-theme="dark"] .anim-vues button[aria-selected="true"] { background: #e07856; border-color: #e07856; color: #ffffff; }
html[data-theme="dark"] .btn-light { background: #20234f; color: #f2ede7; border-color: rgba(170, 176, 235, 0.25); }
html[data-theme="dark"] .btn-light:hover { background: #2b2e63; }

/* Cartes et blocs de contenu : surfaces bleu marine */
html[data-theme="dark"] :is(.bar-item, .chapter-link, .pdf-link, .subject-link, .toolbar button, .chapter-list > details,
  .cycle-card, .level-card, .info-card, .subject-links a, .page-card, .inner-form-card, .value-card, .legend-item,
  .plan-card, .recap-list li, .decouvrir-carte, .filtres button, .jeu-carte, .outil-lien, .article-carte, .actu-carte,
  .actu-sources a, .livre-carte, .tarif-carte, .plus-loin-grille a, .chapitre-plus, .chapitre-plus a, .comment-jouer,
  .cj-commandes p, .mode-emploi, .anim-vues button, .anim-sommaire a, .anim-matiere, .anim-puces a, .anim-cours-filtre,
  .auth-tabs button, .lien-cours-autres a, .viewer-gratuit, .section-white, .tarif-table) {
    background: #1f2250; color: var(--text); border-color: rgba(170, 176, 235, 0.18);
}
html[data-theme="dark"] .section-white { background: #181a44; }
html[data-theme="dark"] .tarif-table tbody tr:nth-child(even) { background: #23265a; }
html[data-theme="dark"] .tarif-carte.domicile { background: linear-gradient(160deg, rgba(224, 120, 86, 0.18), #1f2250); }
html[data-theme="dark"] .comment-jouer > summary { background: #23265a; color: var(--text); }
html[data-theme="dark"] .anim-puces a.principal { background: #e07856; color: #ffffff; }
html[data-theme="dark"] :is(.form-group input, .form-group select, .form-group textarea, .livres-barre select, .anim-cours-filtre select) {
    background: #181a44; color: var(--text); border-color: rgba(170, 176, 235, 0.28);
}
html[data-theme="dark"] .form-group input::placeholder, html[data-theme="dark"] .form-group textarea::placeholder { color: #8d90b8; }
html[data-theme="dark"] :is(.article-contenu .a-retenir, .article-contenu .mythe, .article-contenu .experience, .article-contenu .lien-animation) {
    background: #20234f; color: var(--text); border-color: rgba(170, 176, 235, 0.22);
}
html[data-theme="dark"] .article-contenu .experience strong:first-child { color: #6fd3c6; }
html[data-theme="dark"] .article-contenu .schema img { background: #faf8f5; border-radius: 12px; padding: 6px; }

/* Îlots qui restent clairs : animations, jeux, lecteurs (dessins prévus sur fond clair) */
html[data-theme="dark"] :is(.labo-zone, .arcade-zone, .jeu-zone, .memory-cadre, #lecteur-document, .viewer-pages) {
    color-scheme: light;
    --bg: #f8fafc; --bg-soft: #eef0f7; --surface: rgba(255, 255, 255, 0.82); --surface-strong: #ffffff;
    --text: #0f172a; --text-soft: #475569; --border: rgba(148, 163, 184, 0.20);
    --primary: #2b2e63; --primary-dark: #1d1f45; --primary-fond: #2b2e63; --secondary: #1d1f45;
    --accent: #e07856; --accent-dark: #c9623f; --accent-soft: #fdf1ec; --logo-fonce: #2b2e63;
    color: #0f172a;
}
html[data-theme="dark"] .labo-zone { background: #faf8f5; border-radius: 22px; padding: 14px; }
html[data-theme="dark"] .labo-zone :is(h1, h2, h3, h4), html[data-theme="dark"] .jeu-zone :is(h1, h2, h3, h4) { color: #1d1f45; }

/* Bouton clair / sombre de l'en-tête */
.bouton-theme { margin-left: auto; display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; border: 1px solid rgba(43, 46, 99, 0.16);
    background: #ffffff; color: #2b2e63; font-size: 1.15rem; cursor: pointer; flex-shrink: 0; transition: background 0.2s, transform 0.2s; }
.bouton-theme:hover { transform: rotate(-12deg); background: #fdf1ec; }
html[data-theme="dark"] .bouton-theme { background: #20234f; color: #f4a385; border-color: rgba(170, 176, 235, 0.25); }
html[data-theme="dark"] .bouton-theme:hover { background: #2b2e63; }
/* l'image du logo (avant que le logo vectoriel la remplace) reste visible sur fond sombre */
html[data-theme="dark"] img[src*="logo-header"] { filter: brightness(0) invert(1); }
/* éléments qui avaient var(--primary) (bleu marine) en fond : on garde le bleu marine du logo */
html[data-theme="dark"] :is(.tarif-table thead th, .monogram, .bandeau-site, .lien-cours-principal, .value-card::before) { background: #2b2e63; color: #ffffff; }
html[data-theme="dark"] .brand-icon { background: linear-gradient(135deg, #2b2e63, #e07856); }
html[data-theme="dark"] .viewer-bar { background: #1d1f45; color: #ffffff; }
@media (min-width: 1281px) { .bouton-theme { order: 10; margin-left: 4px; } }
html[data-theme="dark"] .lien-cours { background: #1f2250; border-color: rgba(170, 176, 235, 0.18); }
html[data-theme="dark"] .lien-cours-autres a:hover { background: #2b2e63; border-color: #e07856; }
html[data-theme="dark"] .btn-accent { background: #20234f; color: #f2ede7; border-color: rgba(170, 176, 235, 0.30); }
html[data-theme="dark"] .btn-accent:hover { background: #2b2e63; }
html[data-theme="dark"] .pdf-row { background: #23265a; border-color: rgba(170, 176, 235, 0.18); }
html[data-theme="dark"] .pdf-row-premium { background: linear-gradient(90deg, #23265a, rgba(224, 120, 86, 0.20)); }
html[data-theme="dark"] .pdf-row-anim { background: linear-gradient(90deg, rgba(224, 120, 86, 0.20), #23265a); }
html[data-theme="dark"] .premium-tag { background: rgba(224, 120, 86, 0.22); color: #f4a385; }

/* Encadré « Paiement 100 % sécurisé » (pages Accès corrigés et Mon compte) */
.paiement-securise { display: flex; align-items: center; gap: 14px; max-width: 720px; margin: 22px auto 0; padding: 14px 18px; border: 1px solid rgba(16, 185, 129, 0.35); border-radius: var(--radius-sm); background: rgba(16, 185, 129, 0.08); text-align: left; }
.paiement-securise .ps-icone { flex: none; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; background: rgba(16, 185, 129, 0.16); font-size: 1.25rem; }
.paiement-securise p { margin: 0; display: flex; flex-direction: column; gap: 2px; }
.paiement-securise strong { color: #047857; font-size: 1.02rem; }
.paiement-securise span { color: var(--text-soft); font-size: 0.93rem; line-height: 1.45; }
html[data-theme="dark"] .paiement-securise { background: rgba(16, 185, 129, 0.12); border-color: rgba(52, 211, 153, 0.35); }
html[data-theme="dark"] .paiement-securise strong { color: #6ee7b7; }