/* ========================================= */
/* VARIABLES ET RÉGLAGES GLOBAUX             */
/* ========================================= */
:root {
    --primary: #4A90E2;
    --primary-dark: #357ABD;
    --secondary: #50E3C2;
    --accent: #FF6B6B;
    --dark-bg: #1a1c23;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --text-main: #2c3e50;
    --text-muted: #4a5564;
    --text-soft: #6b7891;
    --bg-grad: linear-gradient(135deg, #f5f7fa 0%, #e8edf3 100%);
    --card-tint: rgba(74, 144, 226, 0.08);
    --card-tint-strong: rgba(74, 144, 226, 0.14);
    --card-border: rgba(74, 144, 226, 0.18);
    --pill-bg: rgba(255, 255, 255, 0.85);
    --shape-opacity: 0.6;
    --modal-bg: white;
    --modal-text: #4a5564;
    --shadow-card: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    --navbar-bg: rgba(255, 255, 255, 0.7);
    --navbar-border: rgba(255, 255, 255, 0.4);
    --link-hover-bg: rgba(74, 144, 226, 0.1);
    --radius: 20px;
}

/* ── Dark theme overrides ────────────────────────────────────────────── */
[data-theme="dark"] {
    --primary: #6BB0FF;
    --primary-dark: #4A90E2;
    --secondary: #5EEAC8;
    --accent: #FF8A8A;
    --glass-bg: rgba(28, 36, 54, 0.7);
    --text-main: #e4eaf5;
    --text-muted: #b8c2d1;
    --text-soft: #8a9bb5;
    --bg-grad: linear-gradient(135deg, #0e1118 0%, #161a26 100%);
    --card-tint: rgba(107, 176, 255, 0.08);
    --card-tint-strong: rgba(107, 176, 255, 0.16);
    --card-border: rgba(107, 176, 255, 0.22);
    --pill-bg: rgba(28, 36, 54, 0.75);
    --shape-opacity: 0.28;
    --modal-bg: #1e2638;
    --modal-text: #b8c2d1;
    --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.45);
    --navbar-bg: rgba(18, 23, 36, 0.78);
    --navbar-border: rgba(107, 176, 255, 0.18);
    --link-hover-bg: rgba(107, 176, 255, 0.15);
}

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

html {
    scroll-behavior: smooth; /* Glissement fluide pour les ancres */
}

body {
    font-family: 'Roboto', sans-serif;
    background: var(--bg-grad);
    color: var(--text-main);
    overflow-x: hidden;
    min-height: 100vh;
    transition: background 0.4s ease, color 0.3s ease;
    padding-top: 80px; /* Compense la navbar fixée en haut */
    display: block;
}

/* ========================================= */
/* ARRIÈRE-PLAN ANIMÉ                        */
/* ========================================= */
.bg-shape {
    position: fixed; /* Fixed pour qu'ils restent visibles au scroll */
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: var(--shape-opacity);
    animation: float 10s infinite ease-in-out;
}
.shape-1 {
    width: 400px; height: 400px;
    background: var(--primary);
    top: -50px; left: -100px;
}
.shape-2 {
    width: 300px; height: 300px;
    background: var(--secondary);
    bottom: -50px; right: -50px;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, 50px); }
}

/* ========================================= */
/* BARRE DE NAVIGATION (NAVBAR)              */
/* ========================================= */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%; height: 80px;
    background: var(--navbar-bg);
    backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--navbar-border);
    transition: background 0.3s ease, border-color 0.3s ease;
    display: flex; justify-content: space-between; align-items: center;
    padding: 0 5%; z-index: 1000;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.nav-brand {
    display: flex; align-items: center; gap: 12px;
    text-decoration: none; font-family: 'Montserrat', sans-serif;
    font-weight: 800; color: var(--text-main);
    font-size: clamp(1.2rem, 2vw, 1.8rem); /* Taille de police adaptative */
}
.nav-logo { height: clamp(40px, 5vh, 60px); width: auto; }
.highlight { color: var(--primary); }

.nav-links { display: flex; gap: 10px; }
.nav-links a {
    text-decoration: none; color: var(--text-main);
    font-weight: 600; font-size: clamp(0.9rem, 1.2vw, 1.1rem);
    transition: all 0.3s ease; display: flex; align-items: center; gap: 8px;
    padding: 10px 15px; border-radius: 8px;
}
.nav-links a:hover {
    color: var(--primary);
    background: var(--link-hover-bg);
    transform: translateY(-2px);
}

/* Theme toggle button */
.theme-toggle {
    background: var(--link-hover-bg);
    border: 1px solid var(--card-border);
    color: var(--primary);
    width: 40px; height: 40px;
    border-radius: 10px;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem;
    transition: all 0.25s ease;
    padding: 0;
}
.theme-toggle:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px) rotate(15deg);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.35);
}
[data-theme="dark"] .theme-toggle:hover { box-shadow: 0 4px 12px rgba(107, 176, 255, 0.4); }

/* Bouton Menu Mobile (Caché sur PC) */
.mobile-menu-btn {
    display: none;
    background: none; border: none;
    font-size: 2rem; color: var(--primary);
    cursor: pointer; transition: 0.3s;
}

/* ========================================= */
/* PAGE D'ACCUEIL (HOME)                     */
/* ========================================= */
.hero-section {
    min-height: calc(100vh - 80px);
    display: flex; flex-direction: column; justify-content: center; align-items: center;
    text-align: center; position: relative; padding: 20px;
}
.hero-logo {
    max-width: 100%; height: auto; 
    max-height: clamp(200px, 35vh, 400px); 
    margin-bottom: 30px; 
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.1));
}
.hero-title { 
    font-family: 'Montserrat', sans-serif; 
    font-weight: 800; margin: 0 0 15px 0; line-height: 1.2; 
    font-size: clamp(2.5rem, 4vw, 5rem); /* Gigantesque sur PC, raisonnable sur mobile */
}
.hero-subtitle { 
    font-size: clamp(1rem, 1.5vw, 1.5rem); 
    color: #555; max-width: 800px; margin-bottom: 40px; line-height: 1.6;
}

.hero-btn { font-size: clamp(1rem, 1.5vw, 1.4rem); padding: 20px 50px; border-radius: 50px; display: inline-flex; text-decoration: none;}

.scroll-down-indicator {
    position: absolute; bottom: 30px; font-size: 2rem; color: var(--primary);
    animation: bounce 2s infinite; text-decoration: none; opacity: 0.7;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-20px); }
    60% { transform: translateY(-10px); }
}

/* ========================================= */
/* ABOUT (Qui Sommes-Nous)                   */
/* ========================================= */
.about-section {
    max-width: 1100px;
    margin: 0 auto;
    padding: 80px 20px 60px;
    display: flex; flex-direction: column; gap: 36px;
}

/* Intro */
.about-intro { text-align: left; }
.section-eyebrow {
    display: inline-block;
    text-transform: uppercase; letter-spacing: 0.18em;
    color: var(--primary); font-weight: 700; font-size: 0.78rem;
    margin-bottom: 12px;
}
.section-title {
    font-size: clamp(2rem, 5vw, 2.9rem);
    line-height: 1.15; margin: 0 0 18px;
    color: var(--text-main); font-weight: 800;
}
.section-title span {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-lead {
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    color: #4a5564; line-height: 1.7;
    max-width: 780px; margin: 0;
}

/* Stats banner */
.stats-banner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
}
.stat-pill {
    background: var(--glass-bg);
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 18px rgba(31, 38, 135, 0.08);
    transition: transform .25s ease, box-shadow .25s ease;
}
.stat-pill:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(31, 38, 135, 0.15);
}
.stat-num {
    display: block;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1; margin-bottom: 6px;
}
.stat-lbl {
    display: block; font-size: 0.82rem; color: #6b7891;
    text-transform: uppercase; letter-spacing: 0.04em;
    font-weight: 500;
}

/* Card titles */
.card-title {
    margin: 0;
    color: var(--text-main); font-size: 1.4rem; font-weight: 700;
    display: flex; align-items: center; gap: 12px;
}
.card-title i { color: var(--primary); }
.card-subtitle {
    margin: -10px 0 0; color: #6b7891; font-size: 0.95rem;
}

/* Pipeline */
.pipeline {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 12px;
    align-items: stretch;
    margin-top: 8px;
}
.pipeline-step {
    background: linear-gradient(135deg,
        rgba(74, 144, 226, 0.08),
        rgba(80, 227, 194, 0.06));
    border: 1px solid rgba(74, 144, 226, 0.18);
    border-radius: 16px;
    padding: 24px 20px;
    display: flex; flex-direction: column; gap: 10px;
    position: relative;
}
.pipeline-step .step-num {
    position: absolute; top: -14px; left: -14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    width: 32px; height: 32px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 0.95rem;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.4);
}
.pipeline-step > i:first-of-type {
    font-size: 1.8rem; color: var(--primary); margin-top: 4px;
}
.pipeline-step h4 {
    margin: 0; font-size: 1.1rem; color: var(--text-main); font-weight: 700;
}
.pipeline-step h4 em { color: var(--primary); font-style: italic; font-weight: 600; }
.pipeline-step p {
    margin: 0; color: #4a5564; font-size: 0.95rem; line-height: 1.55;
}
.pipeline-arrow {
    align-self: center; color: var(--primary);
    font-size: 1.3rem; opacity: 0.5;
}

/* Pôles */
.team-poles, .team-poles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px; margin: 8px 0;
}
.team-poles { grid-template-columns: repeat(3, 1fr); }
.pole-card {
    background: linear-gradient(135deg,
        rgba(74, 144, 226, 0.08),
        rgba(80, 227, 194, 0.06));
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 18px;
}
.pole-card h4 {
    margin: 0 0 12px; color: var(--primary-dark);
    font-size: 1rem; font-weight: 700;
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.pole-card h4 i { color: var(--primary); }
.pole-card .pole-tag {
    margin: 0; font-size: 0.78rem; color: var(--text-soft);
    font-family: ui-monospace, Menlo, monospace;
}
.pole-card .pole-name {
    margin: 4px 0 0; font-size: 0.85rem; color: var(--accent);
    font-weight: 600;
}
.pole-tag-inline {
    font-size: 0.72rem; font-weight: 500; color: var(--text-soft);
    background: var(--card-tint); padding: 3px 8px; border-radius: 999px;
    font-family: ui-monospace, Menlo, monospace;
    text-transform: none; letter-spacing: 0;
}

.pole-members {
    list-style: none; padding: 0; margin: 0;
    display: flex; flex-direction: column; gap: 6px;
}
.pole-members-inline {
    flex-direction: row; flex-wrap: wrap; gap: 8px;
}
.member-pill {
    background: rgba(74, 144, 226, 0.06);
    border: 1px solid transparent;
    border-radius: 10px; padding: 8px 12px;
    font-size: 0.92rem; color: var(--text-main);
    cursor: pointer; user-select: none;
    transition: all 0.2s ease;
}
.member-pill:hover {
    background: rgba(74, 144, 226, 0.14);
    border-color: rgba(74, 144, 226, 0.3);
    transform: translateX(2px);
}
.member-pill strong { color: var(--primary-dark); font-weight: 700; }
.member-pill.member-resp { background: rgba(74, 144, 226, 0.12); }
.member-pill.member-lead {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.18), rgba(80, 227, 194, 0.14));
    border-color: var(--card-border);
    text-align: center;
}

/* Chef + outils cards */
.pole-lead { background: linear-gradient(135deg, rgba(255, 215, 100, 0.06), rgba(74, 144, 226, 0.08)); border-color: rgba(255, 196, 100, 0.3); }
.pole-lead h4 i { color: #d4a017; }
.pole-lead .member-pill.member-lead strong {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.1rem;
}
.pole-tools { background: var(--card-tint); }

.team-hint-inline {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--primary); font-size: 0.85rem; font-weight: 500;
}
.team-hint-inline i { color: var(--primary); }

/* ODD badges links */
.odd-badge { text-decoration: none; transition: transform 0.2s ease, box-shadow 0.25s ease; }
.odd-badge:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18); }

/* Encadrants liens */
.people-list em a, .card-subtitle a {
    color: var(--primary); text-decoration: none; font-weight: 600;
    border-bottom: 1px dotted currentColor;
}
.people-list em a:hover, .card-subtitle a:hover { color: var(--primary-dark); }

/* Hint et liste équipe */
.team-hint {
    margin: 8px 0 -4px; color: #6b7891;
    font-size: 0.88rem; display: flex; align-items: center; gap: 8px;
}
.team-hint i { color: var(--primary); }
.team-list {
    list-style: none; padding: 0; margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 8px;
}
.team-list li {
    background: rgba(74, 144, 226, 0.06);
    border-radius: 10px;
    padding: 10px 14px;
    color: var(--text-main); font-weight: 500; font-size: 0.95rem;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    cursor: pointer;
    user-select: none;
}
.team-list li:hover {
    background: rgba(74, 144, 226, 0.14);
    border-color: rgba(74, 144, 226, 0.35);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.18);
}
.team-list li.lead {
    background: linear-gradient(135deg,
        rgba(74, 144, 226, 0.15),
        rgba(80, 227, 194, 0.12));
    border-color: rgba(74, 144, 226, 0.3);
}
.team-list li.lead strong { color: var(--primary-dark); }
.team-list li span { color: #888; font-weight: 400; font-size: 0.85rem; }

/* Modal membre */
.member-modal {
    position: fixed; inset: 0; z-index: 1000;
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
    animation: modal-fade-in 0.2s ease;
}
.member-modal[hidden] { display: none; }
.member-modal-backdrop {
    position: absolute; inset: 0;
    background: rgba(26, 28, 35, 0.7);
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    cursor: pointer;
}
.member-modal-content {
    position: relative; z-index: 1;
    background: white;
    border-radius: var(--radius);
    padding: 36px 32px 28px;
    max-width: 480px; width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    animation: modal-pop 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.member-modal-close {
    position: absolute; top: 12px; right: 16px;
    background: none; border: none;
    font-size: 1.8rem; color: #aaa;
    cursor: pointer; line-height: 1;
    transition: color 0.2s ease;
}
.member-modal-close:hover { color: var(--accent); }
.member-modal-avatar {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; margin: 0 auto 16px;
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.35);
}
.member-modal-content h3 {
    margin: 0 0 6px; color: var(--text-main);
    font-size: 1.4rem; font-weight: 700;
}
.member-modal-role {
    margin: 0 0 18px; color: var(--primary);
    font-weight: 600; font-size: 0.95rem;
}
.member-modal-bio {
    margin: 0; color: #4a5564; font-size: 0.98rem; line-height: 1.6;
    text-align: left;
}

@keyframes modal-fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes modal-pop {
    from { opacity: 0; transform: scale(0.9); }
    to   { opacity: 1; transform: scale(1); }
}

/* Bottom: encadrants + stack */
.about-bottom {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.people-list, .stack-list {
    list-style: none; padding: 0; margin: 0;
    display: flex; flex-direction: column; gap: 12px;
}
.people-list li {
    background: rgba(74, 144, 226, 0.05);
    border-radius: 10px; padding: 12px 14px;
    border-left: 3px solid var(--primary);
}
.people-list strong {
    display: block; color: var(--text-main); font-size: 0.98rem;
}
.people-list em {
    color: #6b7891; font-style: normal; font-size: 0.85rem;
}
.stack-list li {
    display: flex; align-items: center; gap: 12px;
    color: var(--text-main); font-size: 0.95rem;
    padding: 6px 0;
}
.stack-list li i {
    color: var(--primary);
    width: 22px; text-align: center; font-size: 1rem;
}

/* ODD banner */
.odd-banner {
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius);
    padding: 20px 28px;
    display: flex; flex-wrap: wrap; align-items: center;
    justify-content: space-between; gap: 16px;
}
.odd-label { color: #4a5564; font-weight: 500; font-size: 0.95rem; }
.odd-badges { display: flex; flex-wrap: wrap; gap: 10px; }
.odd-badge {
    padding: 8px 14px;
    border-radius: 999px;
    font-weight: 600; font-size: 0.85rem;
    color: white;
    display: inline-flex; align-items: center; gap: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.odd-4 { background: linear-gradient(135deg, #c0392b, #e74c3c); }
.odd-10 { background: linear-gradient(135deg, #d63384, #ff6b6b); }

/* Contact line */
.contact-line {
    text-align: center; color: #6b7891; font-size: 0.88rem;
}
.contact-line p { margin: 0; line-height: 1.6; }
.contact-line a {
    color: var(--primary); font-weight: 600; text-decoration: none;
}
.contact-line a:hover { text-decoration: underline; }

/* ========================================= */
/* PAGES COMMUNES (Traduction & Apprentissage) */
/* ========================================= */
.main-wrapper {
    width: 100%; max-width: 900px; margin: 40px auto; padding: 20px;
}

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

.status-indicator {
    background: white; padding: 8px 16px; border-radius: 30px;
    font-size: 0.9rem; font-weight: 600;
    display: flex; align-items: center; gap: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.dot { width: 10px; height: 10px; background: #ccc; border-radius: 50%; display: block; }
.dot.active { background: var(--secondary); box-shadow: 0 0 10px var(--secondary); }

/* Carte style "Glassmorphism" */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius); padding: 2rem;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--navbar-border);
    transition: background 0.3s ease, border-color 0.3s ease;
    display: flex; flex-direction: column; gap: 20px;
}

/* ========================================= */
/* ZONE VIDÉO ET SCANNER                     */
/* ========================================= */
.video-container {
    width: 100%; aspect-ratio: 4 / 3; background: #000;
    border-radius: var(--radius); position: relative;
    overflow: hidden; box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

video {
    width: 100%; height: 100%; object-fit: contain;
    transform: scaleX(-1); opacity: 0; transition: opacity 0.5s;
}
video.active { opacity: 1; }

.video-placeholder {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    display: flex; flex-direction: column; justify-content: center; align-items: center; color: #555;
}
.video-placeholder i { font-size: 3rem; margin-bottom: 10px; opacity: 0.5; }

/* Effet Scanner IA */
.scanner-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none; display: none;
}
.scanner-overlay.active { display: block; }

.scanner-line {
    width: 100%; height: 2px; background: var(--secondary);
    box-shadow: 0 0 10px var(--secondary), 0 0 20px var(--secondary);
    position: absolute; top: 0; animation: scan 2s infinite linear;
}
@keyframes scan {
    0% { top: 0%; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

/* Coins du scanner */
.corner { position: absolute; width: 30px; height: 30px; border: 3px solid var(--secondary); opacity: 0.7; }
.top-left { top: 20px; left: 20px; border-right: none; border-bottom: none; }
.top-right { top: 20px; right: 20px; border-left: none; border-bottom: none; }
.bottom-left { bottom: 20px; left: 20px; border-right: none; border-top: none; }
.bottom-right { bottom: 20px; right: 20px; border-left: none; border-top: none; }

/* ========================================= */
/* RÉSULTATS (IA)                            */
/* ========================================= */
.output-area {
    display: grid; grid-template-columns: 1fr 2fr; gap: 15px;
}

.prediction-box, .word-box {
    background: white; padding: 15px; border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05); text-align: center; position: relative;
}

.label { font-size: 0.75rem; text-transform: uppercase; color: #888; letter-spacing: 1px; font-weight: bold; }

#currentLetter {
    font-size: 3rem; color: var(--primary); margin: 5px 0; font-weight: 800; min-height: 60px;
}
.pop-anim { animation: pop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); }

@keyframes pop {
    0% { transform: scale(0.5); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

#wordHistory {
    font-size: 1.2rem; font-weight: 500; letter-spacing: 2px;
    color: #333; margin-top: 10px; word-wrap: break-word;
}

.icon-btn {
    position: absolute; right: 10px; bottom: 10px;
    background: none; border: none; cursor: pointer; color: #999;
    transition: color 0.2s; font-size: 1rem;
}
.icon-btn:hover { color: var(--accent); }

/* ========================================= */
/* BOUTONS D'ACTION                          */
/* ========================================= */
.controls { display: flex; gap: 15px; margin-top: 10px; }

.btn {
    flex: 1; padding: 15px; border: none; border-radius: 12px;
    font-weight: 700; font-size: 1rem; cursor: pointer; 
    display: flex; justify-content: center; align-items: center; gap: 10px;
    transition: all 0.3s ease; box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.btn.primary { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: white; }
.btn.primary:hover { transform: translateY(-2px); box-shadow: 0 6px 15px rgba(74, 144, 226, 0.4); }

.btn.secondary { background: white; color: var(--text-main); border: 2px solid #eee; }
.btn.secondary:hover:not(:disabled) { border-color: var(--secondary); color: var(--secondary); }

.btn.stop-mode { background: linear-gradient(135deg, #ff6b6b 0%, #ee5253 100%); color: white; border: none; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }


/* ========================================= */
/* ANIMATIONS D'APPARITION (REVEAL)          */
/* ========================================= */
.reveal {
    opacity: 0;
    transform: translateY(60px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}
.reveal.active {
    opacity: 1; transform: translateY(0);
}


/* ========================================= */
/* RESPONSIVE DESIGN (TABLETTES & MOBILES)   */
/* ========================================= */
@media (max-width: 768px) {
    /* Menu Mobile */
    .mobile-menu-btn { display: block; }
    
    .nav-links {
        position: absolute; top: 80px; left: 0; width: 100%;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column; align-items: center;
        padding: 20px 0; gap: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        
        /* Animation d'ouverture du menu (Caché par défaut) */
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.4s cubic-bezier(0.5, 0, 0, 1);
    }
    
    .nav-links.active { clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%); }
    .nav-links a { font-size: 1.3rem; width: 80%; justify-content: center; background: #f8f9fa; }

    /* Qui Sommes-Nous */
    .about-section { padding: 50px 16px 40px; gap: 28px; }
    .pipeline { grid-template-columns: 1fr; gap: 20px; }
    .pipeline-arrow { transform: rotate(90deg); margin: -4px 0; opacity: 0.4; }
    .team-poles, .team-poles-grid { grid-template-columns: 1fr; }
    .pole-members-inline { flex-direction: column; }
    .about-bottom { grid-template-columns: 1fr; }
    .odd-banner { justify-content: center; text-align: center; }
    .odd-badges { justify-content: center; }
    .stats-banner { grid-template-columns: repeat(2, 1fr); }
    
    /* Traduction UI */
    .main-wrapper { margin: 20px auto; padding: 10px; }
    .glass-card { padding: 1.2rem; }
    /* aspect-ratio géré au niveau du desktop, rien à override ici */
    .output-area { grid-template-columns: 1fr; }
    .controls { flex-direction: column; }
}

/* ========================================= */
/* DARK THEME OVERRIDES                      */
/* ========================================= */
[data-theme="dark"] .hero-subtitle,
[data-theme="dark"] .section-lead,
[data-theme="dark"] .odd-label,
[data-theme="dark"] .pipeline-step p,
[data-theme="dark"] .people-list em,
[data-theme="dark"] .stat-lbl,
[data-theme="dark"] .card-subtitle,
[data-theme="dark"] .contact-line,
[data-theme="dark"] .team-hint { color: var(--text-soft); }

[data-theme="dark"] .pole-card h4,
[data-theme="dark"] .team-list li,
[data-theme="dark"] .team-list li.lead strong,
[data-theme="dark"] .stack-list li,
[data-theme="dark"] .people-list strong { color: var(--text-main); }

[data-theme="dark"] .pole-card .pole-tag { color: var(--text-soft); }

[data-theme="dark"] .pole-card,
[data-theme="dark"] .pipeline-step {
    background: linear-gradient(135deg,
        rgba(107, 176, 255, 0.08),
        rgba(94, 234, 200, 0.06));
    border-color: var(--card-border);
}
[data-theme="dark"] .team-list li {
    background: rgba(107, 176, 255, 0.07);
    border: 1px solid transparent;
}
[data-theme="dark"] .team-list li:hover {
    background: rgba(107, 176, 255, 0.14);
    border-color: var(--card-border);
}
[data-theme="dark"] .team-list li.lead {
    background: linear-gradient(135deg,
        rgba(107, 176, 255, 0.18),
        rgba(94, 234, 200, 0.14));
    border-color: var(--card-border);
}
[data-theme="dark"] .stat-pill { background: var(--pill-bg); }

[data-theme="dark"] .people-list li {
    background: rgba(107, 176, 255, 0.06);
    border-left-color: var(--primary);
}

[data-theme="dark"] .odd-banner {
    background: rgba(28, 36, 54, 0.5);
    border-color: var(--card-border);
}

[data-theme="dark"] .member-modal-content { background: var(--modal-bg); }
[data-theme="dark"] .member-modal-content h3 { color: var(--text-main); }
[data-theme="dark"] .member-modal-bio { color: var(--modal-text); }
[data-theme="dark"] .member-modal-close { color: var(--text-soft); }

/* Hero & nav text in dark */
[data-theme="dark"] .hero-title { color: var(--text-main); }
[data-theme="dark"] .nav-brand,
[data-theme="dark"] .nav-brand span { color: var(--text-main); }
[data-theme="dark"] .nav-links a { color: var(--text-main); }

/* About-section misc helpers */
[data-theme="dark"] .about-text { color: var(--text-soft); }


/* ========================================= */
/* APPRENTISSAGE (Anki-style cards)          */
/* ========================================= */
.learn-hero { text-align: center; margin: 30px 0; }
.learn-hero-title {
    font-size: clamp(2rem, 5vw, 2.8rem); margin: 0 0 12px; color: var(--text-main);
    font-weight: 800;
}
.learn-hero-title span {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.learn-hero-lead {
    color: var(--text-muted); font-size: 1.05rem; max-width: 600px; margin: 0 auto;
}

.learn-modes {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
    max-width: 850px; margin: 30px auto 0;
}
.learn-mode-card {
    text-decoration: none; color: inherit;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    cursor: pointer;
}
.learn-mode-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(74, 144, 226, 0.2); }
.learn-mode-icon {
    font-size: 2.4rem; color: var(--primary);
    background: var(--card-tint); width: 70px; height: 70px;
    border-radius: 18px;
    display: flex; align-items: center; justify-content: center;
}
.learn-mode-card h3 { margin: 6px 0; color: var(--text-main); font-size: 1.3rem; }
.learn-mode-card p { margin: 0; color: var(--text-muted); line-height: 1.55; font-size: 0.95rem; }
.learn-mode-card em { color: var(--primary); font-style: italic; }
.learn-mode-cta {
    color: var(--primary); font-weight: 700; font-size: 0.95rem;
    display: inline-flex; align-items: center; gap: 8px;
    margin-top: 4px;
}

/* Header (back + progress) */
.learn-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 16px; flex-wrap: wrap; gap: 12px;
}
.learn-back {
    color: var(--primary); text-decoration: none; font-weight: 600;
    display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px;
    border-radius: 10px; background: var(--card-tint);
    transition: background 0.2s ease;
}
.learn-back:hover { background: var(--card-tint-strong); }
.learn-progress {
    color: var(--text-soft); font-size: 0.9rem;
    display: inline-flex; align-items: center; gap: 8px;
}
.learn-progress i { color: var(--primary); }

/* Card */
.learn-card { padding: 28px; }

.learn-letter { text-align: center; margin-bottom: 18px; }
.learn-letter-label {
    color: var(--text-soft); text-transform: uppercase; letter-spacing: 0.12em;
    font-size: 0.75rem; font-weight: 600;
}
.learn-letter h1 {
    font-size: clamp(3.5rem, 8vw, 5rem); margin: 4px 0 0; line-height: 1;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.learn-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.learn-pane { display: flex; flex-direction: column; gap: 8px; }
.learn-pane-header {
    color: var(--text-soft); font-size: 0.85rem;
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 6px;
}
.learn-pane-header i { color: var(--primary); }
.learn-detected {
    font-size: 0.82rem; color: var(--text-soft);
}
.learn-detected strong { color: var(--text-main); }
.learn-detected.match strong { color: var(--secondary); font-weight: 800; }
.learn-conf { color: var(--text-soft); margin-left: 4px; }

.learn-video-wrap {
    aspect-ratio: 4 / 3; background: #000; border-radius: 14px; overflow: hidden;
    position: relative;
}
.learn-video-wrap video {
    width: 100%; height: 100%; object-fit: contain; display: block;
}
.learn-cam-wrap video { transform: scaleX(-1); }
.learn-cam-wrap canvas { position: absolute; top: 0; left: 0; pointer-events: none; z-index: 5; }

.learn-placeholder, .learn-missing {
    position: absolute; inset: 0; z-index: 4;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    color: #888; gap: 8px; background: #0c0e15;
}
.learn-placeholder i, .learn-missing i { font-size: 2.4rem; opacity: 0.6; }
.learn-placeholder p, .learn-missing p { margin: 0; font-size: 0.95rem; }

.learn-validated {
    position: absolute; inset: 0; z-index: 6;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    background: rgba(80, 227, 194, 0.35);
    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
    color: white; gap: 10px;
    animation: validated-pop 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.learn-validated i { font-size: 3.5rem; color: var(--secondary); text-shadow: 0 0 16px rgba(80, 227, 194, 0.9); }
.learn-validated span { font-size: 1.4rem; font-weight: 700; text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5); }

@keyframes validated-pop {
    0% { opacity: 0; transform: scale(0.7); }
    100% { opacity: 1; transform: scale(1); }
}

.learn-start {
    align-self: stretch; margin-top: 4px;
}

/* Rating buttons */
.learn-ratings {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
    margin-top: 20px;
}
.learn-rate {
    background: var(--card-tint); border: 2px solid transparent;
    color: var(--text-main); padding: 16px 12px; border-radius: 14px;
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    cursor: pointer; font-family: inherit;
    transition: all 0.2s ease;
}
.learn-rate i { font-size: 1.5rem; margin-bottom: 4px; color: var(--primary); }
.learn-rate span { font-weight: 700; font-size: 1rem; }
.learn-rate small { color: var(--text-soft); font-size: 0.78rem; }
.learn-rate:hover { transform: translateY(-2px); }
.learn-rate.again:hover  { background: rgba(255, 107, 107, 0.15); border-color: var(--accent); }
.learn-rate.again:hover i { color: var(--accent); }
.learn-rate.learning:hover { background: rgba(74, 144, 226, 0.18); border-color: var(--primary); }
.learn-rate.known:hover  { background: rgba(80, 227, 194, 0.2); border-color: var(--secondary); }
.learn-rate.known:hover i { color: var(--secondary); }

.learn-tip {
    margin: 16px 0 0; padding: 12px 16px;
    background: var(--card-tint); border-radius: 10px;
    color: var(--text-muted); font-size: 0.88rem; line-height: 1.5;
}
.learn-tip i { color: #f0a85b; margin-right: 6px; }

/* Empty deck */
.learn-empty {
    text-align: center; padding: 4rem 2rem;
}
.learn-empty i { font-size: 4rem; color: var(--secondary); margin-bottom: 20px; }
.learn-empty h2 { color: var(--text-main); margin: 0 0 10px; }
.learn-empty p { color: var(--text-muted); margin: 0 0 20px; }
.learn-empty .btn { display: inline-flex; width: auto; padding-left: 24px; padding-right: 24px; }

/* Library */
.lib-intro { margin: 0 0 14px; color: var(--text-muted); }
.lib-legend {
    display: flex; flex-wrap: wrap; gap: 18px;
    margin-bottom: 16px; color: var(--text-soft); font-size: 0.85rem;
}
.lib-dot {
    display: inline-block; width: 10px; height: 10px; border-radius: 50%;
    margin-right: 6px; vertical-align: middle;
}
.lib-dot-new      { background: #bbb; }
.lib-dot-learning { background: var(--primary); }
.lib-dot-known    { background: var(--secondary); }

.lib-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 10px; margin-bottom: 20px;
}
.lib-cell {
    aspect-ratio: 1/1; border: none; padding: 8px;
    border-radius: 12px; cursor: default; font-family: inherit;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    transition: transform 0.15s ease;
}
.lib-cell .lib-letter {
    font-size: 1.8rem; font-weight: 800; line-height: 1;
}
.lib-cell .lib-stat { font-size: 0.7rem; color: inherit; opacity: 0.75; margin-top: 4px; }
.lib-new { background: rgba(150, 150, 150, 0.15); color: var(--text-soft); }
.lib-learning { background: var(--card-tint-strong); color: var(--primary-dark); }
.lib-known {
    background: rgba(80, 227, 194, 0.18);
    color: #2a7d6d; cursor: pointer;
}
.lib-known:hover { transform: scale(1.05); background: rgba(80, 227, 194, 0.28); }
[data-theme="dark"] .lib-known { color: var(--secondary); }
[data-theme="dark"] .lib-learning { color: var(--primary); }

.lib-actions {
    display: flex; gap: 12px; justify-content: space-between; flex-wrap: wrap;
}
.lib-actions .btn { flex: 0 0 auto; padding-left: 18px; padding-right: 18px; }

/* Mobile */
@media (max-width: 768px) {
    .learn-modes { grid-template-columns: 1fr; }
    .learn-grid { grid-template-columns: 1fr; }
    .learn-ratings { grid-template-columns: 1fr; }
}