/* ==========================================================================
   KEEPO PRO PREMIUM - ARCHITECTURE CSS COMPLÈTE (ÉLÉGANTE, MATE & ADAPTATIVE)
   ========================================================================== */

/* --- 1. THEME PAR DÉFAUT : SOMBRE CLASSIQUE MAT (Sobre, minimaliste, haut de gamme) --- */
:root {
    --bg-body: #0a0911;
    --bg-card: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.07);
    --text-main: #f3f3f6;
    --text-muted: #7e7b91;
    --primary-accent: #4a2b82;
    --secondary-accent: #1e9488; /* Vert d'eau mat de confiance */
    --btn-cta-bg: linear-gradient(135deg, #4a2b82, #5a32a3);
    --card-hover-border: rgba(255, 255, 255, 0.15);
    --shadow-main: rgba(0, 0, 0, 0.5);
    --bezier-smooth: cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Variables de bascule désactivées par défaut */
    --display-neon-elements: none;
    --laser-animation: none;
    --laser-bg: #1e9488;
    --body-animation: none;
    --cta-animation: none;
}

/* --- 2. THEME OPTIONNEL : CLAIR MAT CORPORATE (Activable via les Paramètres) --- */
body.light-mode {
    --bg-body: #f4f5f8;
    --bg-card: #ffffff;
    --glass-border: rgba(0, 0, 0, 0.06);
    --text-main: #12111a;
    --text-muted: #6b697c;
    --primary-accent: #4a2b82;
    --secondary-accent: #22a699;
    --btn-cta-bg: linear-gradient(135deg, #4a2b82, #22a699);
    --card-hover-border: rgba(74, 43, 130, 0.2);
    --shadow-main: rgba(0, 0, 0, 0.06);
    --display-neon-elements: none;
}

/* --- 3. THEME OPTIONNEL : NÉON ÉNERGÉTIQUE VIVANT (Activable via les Paramètres) --- */
body.neon-mode {
    background: linear-gradient(-45deg, #07050f, #1e1136, #092623, #0f0c1b) !important;
    background-size: 400% 400% !important;
    animation: gradientMove 15s ease infinite !important;
    --secondary-accent: #2ee6d4;
    --btn-cta-bg: linear-gradient(135deg, #4a2b82, #7e42eb, #2ee6d4);
    --card-hover-border: rgba(46, 230, 212, 0.3);
    --shadow-glow: rgba(46, 230, 212, 0.3);
    --display-neon-elements: block;
    --laser-animation: laserMove 2.5s linear infinite;
    --laser-bg: linear-gradient(90deg, transparent, #2ee6d4, transparent);
    --cta-animation: ctaPulseFloat 4s ease-in-out infinite;
}

/* --- 4. RESET STRUCTUREL & OPTIMISATIONS APPAREILS --- */
html {
    scroll-behavior: smooth;
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: inherit;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    transition: background 0.4s ease, color 0.4s ease;
}

/* --- 5. EFFETS ET AURAS DE FOND (AFFICCHÉS UNIQUEMENT EN MODE NÉON) --- */
.cyber-grid {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.012) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.012) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -2;
    pointer-events: none;
    display: var(--display-neon-elements);
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    z-index: -2;
    opacity: 0.22;
    mix-blend-mode: screen;
    pointer-events: none;
    display: var(--display-neon-elements);
}
.blob-1 { width: 500px; height: 500px; background: var(--primary-purple); top: -100px; right: -50px; animation: floatBlob 12s infinite alternate; }
.blob-2 { width: 600px; height: 600px; background: var(--primary-teal); top: 900px; left: -150px; animation: floatBlob 18s infinite alternate-reverse; }

/* --- 6. ENGINE DE DÉFILEMENT (SCROLL REVEAL) --- */
.reveal {
    opacity: 0;
    transform: translateY(50px) scale(0.96);
    transition: opacity 1.2s var(--bezier-smooth), transform 1.2s var(--bezier-smooth);
    will-change: transform, opacity;
}
.reveal.active {
    opacity: 1;
    transform: translateY(0) scale(1);
}
.reveal.active.stagger-1 { transition-delay: 0.1s; }
.reveal.active.stagger-2 { transition-delay: 0.25s; }
.reveal.active.stagger-3 { transition-delay: 0.4s; }

/* --- 7. BARRE DE NAVIGATION (HEADER) VITRINE & APP --- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 8%;
    background: rgba(10, 8, 18, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
}
body.light-mode header {
    background: rgba(255, 255, 255, 0.8);
}

.logo-container {
    display: flex;
    align-items: center;
    text-decoration: none;
}
.logo-container img {
    height: 46px;
    display: block;
    transition: transform 0.4s var(--bezier-smooth);
}
.logo-container img:hover {
    transform: scale(1.05);
}

nav {
    display: flex;
    align-items: center;
}
nav a {
    margin-left: 35px;
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 15px;
    position: relative;
    transition: color 0.3s ease;
}
nav a:hover {
    color: var(--text-main);
}
nav a::after {
    content: '';
    position: absolute;
    width: 0; height: 2px;
    bottom: -6px; left: 0;
    background: var(--secondary-accent);
    transition: width 0.3s ease;
}
nav a:hover::after {
    width: 100%;
}

/* --- 8. SYSTÈME DE BOUTONS UNIVERSELS --- */
.btn {
    padding: 14px 32px;
    border-radius: 100px;
    text-decoration: none;
    font-weight: 700;
    display: inline-block;
    cursor: pointer;
    border: none;
    text-align: center;
    transition: all 0.4s var(--bezier-smooth);
}

.btn-purple {
    background: linear-gradient(135deg, var(--primary-purple), #6a39c4);
    color: white;
}
.btn-purple:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 25px rgba(74, 43, 130, 0.3);
}

.btn-teal {
    background: var(--secondary-accent);
    color: white;
}
.btn-teal:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px var(--shadow-main);
}

.btn-outline {
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.01);
    padding: 10px 24px;
    font-size: 14px;
}
.btn-outline:hover {
    border-color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-2px);
}

/* Le bouton central Hero unique et ultra-boosté */
.btn-main-cta {
    background: var(--btn-cta-bg);
    color: white;
    box-shadow: 0 8px 25px var(--shadow-main);
    animation: var(--cta-animation);
}
.btn-main-cta:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 30px var(--shadow-glow, var(--shadow-main));
}

/* --- 9. VITRINE PRINCIPALE (HERO SECTION) --- */
.hero {
    padding: 130px 8% 90px;
    text-align: center;
    position: relative;
}
.hero h1 {
    font-size: 60px;
    font-weight: 900;
    letter-spacing: -2px;
    line-height: 1.15;
    margin-bottom: 25px;
    color: var(--text-main);
}
.hero h1 span {
    background: linear-gradient(120deg, #a370ff, #2ee6d4);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
body.light-mode .hero h1 span {
    background: linear-gradient(120deg, #4a2b82, #1e9488);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero p {
    font-size: 21px;
    color: var(--text-muted);
    max-width: 720px;
    margin: 0 auto 45px;
}

/* --- 10. GRILLE DES FONCTIONNALITÉS (CARDS HORIZONTALES) --- */
.features {
    padding: 80px 8%;
    display: flex;
    flex-direction: column;
    gap: 50px;
}
.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 36px;
    border: 1px solid var(--glass-border);
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
    align-items: center;
    transition: all 0.5s var(--bezier-smooth);
}
.card:hover {
    transform: translateY(-10px);
    border-color: var(--card-hover-border);
    box-shadow: 0 30px 60px var(--shadow-main);
}

.card-visual-container {
    padding: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}
.visual-placeholder {
    width: 100%;
    height: 320px;
    border-radius: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.15);
}
.purple-gradient-bg { background: linear-gradient(135deg, rgba(20,13,36,0.2) 0%, rgba(49,28,84,0.2) 100%); }
.teal-gradient-bg { background: linear-gradient(135deg, rgba(6,25,23,0.2) 0%, rgba(19,71,66,0.2) 100%); }
.mixed-gradient-bg { background: linear-gradient(135deg, rgba(20,13,36,0.2) 0%, rgba(19,71,66,0.2) 100%); }

.feat-img {
    max-width: 85%;
    max-height: 85%;
    object-fit: contain;
    transition: transform 0.6s var(--bezier-smooth);
}
.card:hover .feat-img {
    transform: scale(1.04);
}

.card-content {
    padding: 60px;
    text-align: left;
}
.card .icon {
    font-size: 36px;
    margin-bottom: 20px;
}
.card h3 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--text-main);
}
.feat-description {
    color: var(--text-muted);
    font-size: 17px;
    margin-bottom: 30px;
}

.feat-list {
    list-style: none;
}
.feat-list li {
    margin-bottom: 12px;
    font-size: 15px;
    color: var(--text-main);
    padding-left: 24px;
    position: relative;
}
.feat-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary-accent);
    font-weight: bold;
}

/* --- 11. ABONNEMENTS ET GRILLE DES PRIX (49€ / 99€) --- */
.pricing-section {
    padding: 120px 8%;
    text-align: center;
}
.pricing-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-top: 60px;
}
.price-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 60px 45px;
    border-radius: 40px;
    width: 360px;
    border: 1px solid var(--glass-border);
    text-align: center;
    transition: all 0.5s var(--bezier-smooth);
}
.price-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px var(--shadow-main);
}
body.light-mode .price-card {
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.price-card.featured {
    border: 2px solid var(--secondary-accent);
    background: rgba(34, 166, 153, 0.01);
    position: relative;
}
body.neon-mode .price-card.featured {
    animation: floatCard 6s ease-in-out infinite;
}

.badge {
    position: absolute;
    top: -20px; left: 50%;
    transform: translateX(-50%);
    background: var(--secondary-accent);
    color: white;
    padding: 8px 24px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 800;
    white-space: nowrap;
}
body.neon-mode .badge {
    background: linear-gradient(90deg, #2ee6d4, #0a0911);
    color: #0a0911;
    box-shadow: 0 4px 15px rgba(46, 230, 212, 0.4);
}

.price {
    font-size: 58px;
    font-weight: 900;
    margin: 25px 0;
    color: var(--text-main);
}
.price span {
    font-size: 20px;
    color: var(--text-muted);
    font-weight: 500;
}

/* --- 12. SECTION D'EXPLICATION (HOW IT WORKS) --- */
.how-it-works {
    padding: 100px 8%;
    text-align: center;
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}
.step-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    padding: 40px 30px;
    border-radius: 28px;
    text-align: left;
    transition: transform 0.3s;
}
.step-card:hover {
    transform: translateY(-5px);
}
.step-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--secondary-accent);
    margin-bottom: 15px;
}
.step-card h3 {
    font-size: 20px;
    color: var(--text-main);
    margin-bottom: 10px;
}
.step-card p {
    color: var(--text-muted);
    font-size: 15px;
}

/* --- 13. SECTION ACCORDÉON INTERACTIF (FAQ) --- */
.faq-section {
    padding: 100px 8%;
    text-align: center;
}
.faq-container {
    max-width: 800px;
    margin: 50px auto 0;
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    text-align: left;
    transition: all 0.3s ease;
}
summary {
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    font-size: 17px;
    outline: none;
    list-style: none;
}
summary::-webkit-details-marker {
    display: none;
}
summary::before {
    content: "＋ ";
    color: var(--secondary-accent);
    font-weight: bold;
}
.faq-item[open] summary::before {
    content: "✕ ";
}
.faq-item p {
    margin-top: 15px;
    color: var(--text-muted);
    font-size: 15px;
}

/* --- 14. PIED DE PAGE (FOOTER TERMINAL) --- */
footer {
    background: rgba(6, 4, 13, 0.2);
    border-top: 1px solid var(--glass-border);
    padding: 60px 8% 20px;
    margin-top: 80px;
}
.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    text-align: left;
}
.footer-links {
    display: flex;
    gap: 60px;
}
.footer-links h4 {
    color: var(--text-main);
    margin-bottom: 15px;
    font-size: 16px;
}
.footer-links a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 10px;
    transition: color 0.2s ease;
}
.footer-links a:hover {
    color: var(--text-main);
}
.footer-bottom {
    border-top: 1px solid var(--glass-border);
    padding-top: 20px;
    margin-top: 40px;
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
}

/* --- 15. ESPACE AUTHENTIFICATION ET INSCRIPTION (CONNEXION.HTML) --- */
.login-container {
    max-width: 440px;
    margin: 60px auto;
    padding: 50px 40px;
    background: var(--bg-card);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: 36px;
    box-shadow: 0 40px 80px var(--shadow-main);
    text-align: center;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
    margin-bottom: 22px;
}
.form-group label {
    display: block;
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}
.form-group input, .form-group select {
    width: 100%;
    padding: 14px;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    font-size: 15px;
    background-color: rgba(0, 0, 0, 0.15);
    color: var(--text-main);
    transition: all 0.3s var(--bezier-smooth);
}
body.light-mode .form-group input, body.light-mode .form-group select {
    background-color: #f5f6f9;
}
.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--secondary-accent);
}
.form-group select option {
    background-color: var(--bg-body);
    color: var(--text-main);
}

/* --- 16. STRUCTURE PANNEAU LATÉRAL DE L'APPLICATION (SIDEBAR DRAWER) --- */
.sidebar-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.4); backdrop-filter: blur(4px);
    z-index: 998; opacity: 0; pointer-events: none;
    transition: opacity 0.4s ease;
}
.sidebar-overlay.open { opacity: 1; pointer-events: auto; }

.sidebar-menu {
    position: fixed; top: 0; left: 0; width: 320px; height: 100%;
    background: rgba(14, 13, 22, 0.95); backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px); border-right: 1px solid var(--glass-border);
    z-index: 999; transform: translateX(-100%);
    padding: 40px 25px; display: flex; flex-direction: column;
    transition: transform 0.4s var(--bezier-smooth);
}
body.light-mode .sidebar-menu { background: rgba(255, 255, 255, 0.98); }
.sidebar-menu.open { transform: translateX(0); box-shadow: 20px 0 60px rgba(0,0,0,0.3); }

.burger-btn {
    background: rgba(255,255,255,0.03); border: 1px solid var(--glass-border);
    color: var(--text-main); font-size: 22px; padding: 10px 14px; border-radius: 12px;
    cursor: pointer; transition: all 0.3s; display: flex; align-items: center;
}
.burger-btn:hover { border-color: var(--secondary-accent); }
.sidebar-brand { font-size: 26px; font-weight: 900; color: var(--text-main); margin-bottom: 40px; }

.menu-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.menu-item-btn {
    width: 100%; text-align: left; padding: 15px 20px; background: transparent;
    border: none; border-radius: 14px; color: var(--text-muted); font-size: 16px;
    font-weight: 600; cursor: pointer; display: flex; align-items: center; gap: 15px;
    transition: all 0.3s;
}
.menu-item-btn:hover { background: rgba(255,255,255,0.03); color: var(--text-main); }
.menu-item-btn.active { background: var(--glass-border); border-left: 3px solid var(--secondary-accent); color: var(--text-main); }

/* --- 17. REGLAGES DES TERMINAUX APPLICATIFS ET DES VUES SÉPARÉES --- */
.dashboard-layout {
    max-width: 1200px; width: 100%; margin: 30px auto;
    display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px;
}
.app-view { display: none; animation: fadeIn 0.4s ease-out; }
.app-view.active { display: block; }

/* --- 18. MODULE CAMERA ET VISEUR DE SCAN EXCLUSIF --- */
.camera-container {
    width: 100%; height: 320px; margin: 25px auto;
    border-radius: 24px; border: 2px solid var(--secondary-accent);
    box-shadow: 0 10px 30px var(--shadow-main);
    position: relative; overflow: hidden; background: #000;
}
video { width: 100%; height: 100%; object-fit: cover; }
.scanner-laser { 
    position: absolute; top: 0; left: 0; width: 100%; height: 3px; 
    background: var(--laser-bg);
    box-shadow: 0 0 15px var(--secondary-accent);
    animation: var(--laser-animation); 
}

/* --- 19. RECONNAISSANCE DU CATALOGUE DE CADEAUX FIDÉLITÉ --- */
.gifts-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; margin-top: 30px; }
.gift-card { background: rgba(255,255,255,0.01); border: 1px solid var(--glass-border); border-radius: 20px; padding: 20px; text-align: center; transition: all 0.3s; }
body.light-mode .gift-card { background: #fdfdfd; }
.gift-card:hover { transform: translateY(-5px); border-color: var(--secondary-accent); }
.gift-photo-frame { width: 100%; height: 120px; border-radius: 12px; background: rgba(0,0,0,0.2); margin-bottom: 15px; overflow: hidden; display: flex; justify-content: center; align-items: center; }
.gift-photo-frame img { width: 100%; height: 100%; object-fit: cover; }

/* --- 20. RENDU STUDIO DE PERSONNALISATION WALLET SMARTPHONE --- */
.studio-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 50px; align-items: center; }
.mockup-phone { width: 290px; height: 520px; background: #0c0b14; border: 10px solid #222; border-radius: 44px; padding: 22px; margin: 0 auto; box-shadow: 0 30px 60px rgba(0,0,0,0.4); display: flex; flex-direction: column; justify-content: space-between; position: relative; }
.mockup-card { width: 100%; height: 160px; border-radius: 20px; padding: 20px; color: white; display: flex; flex-direction: column; justify-content: space-between; box-shadow: 0 12px 24px rgba(0,0,0,0.3); background: linear-gradient(135deg, #4a2b82, #140d24); position: relative; overflow: hidden; }
.mockup-card-bg-img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.4; display: none; z-index: 0; }
.card-inner-content { position: relative; z-index: 1; height: 100%; display: flex; flex-direction: column; justify-content: space-between; }

/* --- 21. BLOCS DES PARAMÈTRES ÉPURÉS SYSTÈME --- */
.settings-block { border-bottom: 1px solid var(--glass-border); padding-bottom: 30px; margin-bottom: 30px; text-align: left; }
.settings-block:last-child { border: none; padding: 0; margin: 0; }
.toggle-flex-row { display: flex; gap: 15px; margin-top: 15px; }
.theme-btn { padding: 12px 24px; border-radius: 12px; border: 1px solid var(--glass-border); background: rgba(255,255,255,0.01); color: var(--text-main); font-weight: 600; cursor: pointer; transition: all 0.3s; }
.theme-btn.active { border-color: var(--secondary-accent); background: rgba(34,166,153,0.1); color: var(--secondary-accent); }

/* --- 22. LOGS COMPTEURS ET MODALS EN COMPTABILITÉ --- */
.stats-grid-dash { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 30px; margin-top: 30px; }
.mini-stat-card { background: rgba(255, 255, 255, 0.01); border: 1px solid var(--glass-border); padding: 25px 15px; border-radius: 18px; text-align: center; }
body.light-mode .mini-stat-card { background: #fafafa; }
.mini-stat-card h4 { font-size: 13px; color: var(--text-muted); margin-bottom: 5px; }
.mini-stat-card .stat-number { font-size: 26px; font-weight: 800; color: var(--text-main); }

.history-list { list-style: none; margin-top: 20px; display: flex; flex-direction: column; gap: 15px; }
.history-item { display: flex; align-items: center; justify-content: space-between; padding: 15px 20px; background: rgba(255,255,255,0.01); border: 1px solid var(--glass-border); border-radius: 14px; text-align: left; }

.scan-popup { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0.8); background: var(--bg-body); border: 1px solid var(--glass-border); box-shadow: 0 40px 100px rgba(0,0,0,0.5); padding: 40px; border-radius: 32px; z-index: 1000; text-align: center; opacity: 0; pointer-events: none; max-width: 400px; width: 90%; transition: all 0.4s var(--bezier-smooth); }
.scan-popup.show { opacity: 1; transform: translate(-50%, -50%) scale(1); pointer-events: auto; }

/* --- 23. RESPONSIVE CRITIQUE SMARTPHONES SANS COLLISION --- */
@media (max-width: 960px) {
    .card { grid-template-columns: 1fr; }
    .hero h1 { font-size: 38px; }
    .hero p { font-size: 18px; }
    .card-content { padding: 40px; }
    header { padding: 15px 5%; }
    nav a { margin-left: 20px; font-size: 14px; }
    .dashboard-layout, .studio-grid { grid-template-columns: 1fr; }
}

/* --- 24. ENGINE TIMELINES ET DE BASE INTERNE (KEYFRAMES) --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}