/* ============================================
   Cap Learning - Design System 2026
   Edtech moderne, typographie Space Grotesk + DM Sans
   Palette : bleuet doux & violet
   ============================================ */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
    /* Primary Palette - Vivid Blue */
    --color-primary: #3A50F6;
    --color-primary-dark: #2D3FD4;
    --color-primary-light: #6B7DF8;
    --color-primary-50: #EBF0FF;
    --color-primary-100: #D6DFFF;

    /* Secondary - Deep Violet */
    --color-secondary: #1E1B3A;
    --color-secondary-light: #2D2A5E;
    --color-secondary-50: #F5F3FF;

    /* Accent - Soft Lavender / Orchid */
    --color-accent: #A78BFA;
    --color-accent-light: #C4B5FD;

    /* Semantic */
    --color-success: #10B981;
    --color-error: #EF4444;
    --color-warning: #F59E0B;
    --color-info: #3B82F6;

    /* Neutrals - Cool undertone */
    --color-gray-50: #F8FAFC;
    --color-gray-100: #F1F5F9;
    --color-gray-200: #E2E8F0;
    --color-gray-300: #CBD5E1;
    --color-gray-400: #94A3B8;
    --color-gray-500: #64748B;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1E293B;
    --color-gray-900: #0F172A;

    /* Surfaces */
    --surface-primary: #FFFFFF;
    --surface-secondary: var(--color-gray-50);
    --surface-dark: var(--color-secondary);
    --surface-card: #FFFFFF;
    --surface-elevated: #FFFFFF;

    /* Text */
    --text-primary: var(--color-gray-900);
    --text-secondary: var(--color-gray-600);
    --text-tertiary: var(--color-gray-400);
    --text-inverse: #FFFFFF;
    --text-link: var(--color-primary);

    /* Typography - Space Grotesk (headings) + DM Sans (body) */
    --font-display: 'Satoshi', system-ui, -apple-system, sans-serif;
    --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    --leading-tight: 1.15;
    --leading-snug: 1.3;
    --leading-normal: 1.6;
    --leading-relaxed: 1.75;

    --tracking-tight: -0.025em;
    --tracking-normal: 0;
    --tracking-wide: 0.025em;

    /* Spacing (8px base) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Border Radius - 2026 trend: generous radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;

    /* Shadows - Soft, layered */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
    --shadow-glow: 0 0 40px rgba(58, 80, 246, 0.2);
    --shadow-card: 0 2px 12px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.03);
    --shadow-card-hover: 0 8px 32px rgba(0,0,0,0.12), 0 0 0 1px rgba(58,80,246,0.15);

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 250ms;
    --duration-slow: 400ms;

    /* Z-index scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-header: 300;
    --z-modal: 400;
    --z-toast: 500;

    /* Container */
    --container-max: 1280px;
    --container-narrow: 800px;
    --container-padding: var(--space-6);
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background-color: var(--surface-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: var(--text-link);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    color: var(--text-primary);
}

/* Focus Styles - Accessibility */
:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    background: var(--color-primary);
    color: white;
    padding: var(--space-3) var(--space-6);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    z-index: 9999;
    font-weight: 600;
    transition: top var(--duration-fast);
}

.skip-link:focus {
    top: 0;
    color: white;
}

/* --- Layout --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.container-narrow {
    max-width: var(--container-narrow);
}

.section {
    padding: var(--space-24) 0;
}

.section-light {
    background-color: var(--color-gray-50);
}

.section-dark {
    background-color: var(--color-secondary);
    color: var(--text-inverse);
}

/* --- Gradient Text --- */
.text-gradient {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Top Bar --- */
.top-bar {
    background: var(--color-secondary);
    color: var(--text-inverse);
    font-size: var(--text-sm);
    padding: var(--space-2) 0;
}

.top-bar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.top-bar-text a {
    color: var(--color-accent-light);
    font-weight: 600;
    text-decoration: underline;
}

.top-bar-text a:hover {
    color: var(--color-accent);
}

.lang-toggle {
    color: var(--text-inverse);
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    opacity: 0.8;
    transition: opacity var(--duration-fast);
}

.lang-toggle:hover { opacity: 1; }

/* --- Header / Navigation --- */
.header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: box-shadow var(--duration-normal) var(--ease-out);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: var(--space-8);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    flex-shrink: 0;
}

.logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-xl);
    border-radius: var(--radius-lg);
}

.logo-text {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.logo-accent {
    color: var(--color-primary);
}

.logo-by {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-gray-500);
    margin-left: 6px;
    padding-left: 10px;
    border-left: 1px solid var(--color-gray-200);
    white-space: nowrap;
    align-self: center;
}

.logo-digi-atlas {
    height: 32px;
    width: 32px;
    display: inline-block;
    vertical-align: middle;
    border-radius: 50%;
    box-sizing: border-box;
    box-shadow: 0 2px 5px rgba(58,80,246,0.25);
    object-fit: cover;
    background: transparent;
}

.footer-brand .logo-by {
    color: var(--text-secondary);
    border-left-color: #F2E6C8;
}

.footer-brand .logo-digi-atlas {
    height: 32px;
    width: 32px;
    filter: none;
    opacity: 1;
    box-shadow: 0 2px 8px rgba(58,80,246,0.25), 0 0 0 1px rgba(30,27,58,0.08);
}

@media (max-width: 480px) {
    .logo-by {
        font-size: 0.75rem;
        gap: 4px;
        margin-left: 4px;
        padding-left: 6px;
    }
    .logo-digi-atlas {
        height: 28px;
        width: 28px;
    }
}

/* Nav */
.nav-main {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-out);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: var(--color-gray-100);
}

.nav-link.active {
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-primary-50);
}

.nav-chevron {
    font-size: var(--text-xs);
    transition: transform var(--duration-fast);
}

/* Nav Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    width: 480px;
    background: var(--surface-elevated);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-gray-200);
    padding: var(--space-4);
    margin-top: var(--space-2);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all var(--duration-normal) var(--ease-out);
}

/* Invisible bridge so the hover survives the visual gap between trigger and menu */
.nav-dropdown-menu::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: calc(-1 * var(--space-2) - 4px);
    height: calc(var(--space-2) + 4px);
    background: transparent;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu,
.nav-dropdown-trigger[aria-expanded="true"] + .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown:hover .nav-chevron,
.nav-dropdown-trigger[aria-expanded="true"] .nav-chevron {
    transform: rotate(180deg);
}

.nav-dropdown-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
}

.nav-dropdown-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    transition: background var(--duration-fast);
}

.nav-dropdown-item:hover {
    background: var(--color-gray-100);
    color: var(--text-primary);
}

.nav-dropdown-icon {
    font-size: var(--text-2xl);
    flex-shrink: 0;
}

.nav-dropdown-item strong {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: 2px;
}

.nav-dropdown-item span {
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

.cart-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    color: var(--text-primary);
    transition: background var(--duration-fast);
}

.cart-btn:hover {
    background: var(--color-gray-100);
    color: var(--text-primary);
}

.cart-icon {
    font-size: var(--text-xl);
}

.cart-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--color-primary);
    color: white;
    font-size: 11px;
    font-weight: 700;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* Hamburger */
.mobile-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--duration-normal) var(--ease-out);
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before { top: -6px; }
.hamburger::after { top: 6px; }

.mobile-menu-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

/* Mobile Nav */
.mobile-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface-primary);
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-lg);
    padding: var(--space-4) var(--container-padding);
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.mobile-nav-link {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-50);
}

.mobile-nav-divider {
    height: 1px;
    background: var(--color-gray-200);
    margin: var(--space-3) 0;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--text-sm);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    white-space: nowrap;
    text-decoration: none;
    line-height: 1.4;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--color-gray-300);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-50);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: var(--space-2) var(--space-4);
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--color-gray-100);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-arrow {
    transition: transform var(--duration-fast);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

.play-icon {
    font-size: var(--text-xs);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    padding: var(--space-20) 0 var(--space-24);
    overflow: hidden;
    background: linear-gradient(180deg, var(--color-primary-50) 0%, var(--surface-primary) 100%);
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 20% 50%, rgba(58,80,246,0.06) 0%, transparent 50%),
                      radial-gradient(circle at 80% 50%, rgba(167,139,250,0.06) 0%, transparent 50%);
    pointer-events: none;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--surface-primary);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-sm);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: var(--radius-full);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl));
    line-height: var(--leading-tight);
    margin-bottom: var(--space-6);
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    max-width: 540px;
    margin-bottom: var(--space-8);
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-10);
}

/* Trust / Avatars */
.hero-trust {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.avatar-stack {
    display: flex;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: 700;
    color: white;
    border: 3px solid white;
    overflow: hidden;
    box-sizing: border-box;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 50%;
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 10px;
    border-width: 2px;
}

.avatar-stack .avatar + .avatar {
    margin-left: -10px;
}

.stars {
    color: var(--color-accent);
    font-size: var(--text-sm);
    letter-spacing: 2px;
}

.hero-trust-text span {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* Hero Visual / Cards */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    padding: var(--space-8) 0;
}

.hero-card {
    background: var(--surface-card);
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-gray-200);
}

.hero-card-main {
    width: 340px;
    transform: rotate(-2deg);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: rotate(-2deg) translateY(0); }
    50% { transform: rotate(-2deg) translateY(-10px); }
}

/* 2e carte principale mise en avant : IA & Réseaux Sociaux */
.hero-card-main-alt {
    position: absolute;
    top: 36px;
    right: -24px;
    width: 300px;
    transform: rotate(4deg);
    animation: floatAlt 6.8s ease-in-out infinite;
    z-index: 1;
    background: linear-gradient(155deg, #F4F0FF 0%, #FFFFFF 62%);
    border-left: 4px solid var(--color-accent, #A78BFA);
    transition: transform .3s ease, box-shadow .3s ease;
}
.hero-card-main-alt:hover {
    z-index: 4;
    transform: rotate(0deg) translateY(-4px) scale(1.02);
    box-shadow: 0 25px 60px -12px rgba(30, 27, 58, 0.35);
}
@keyframes floatAlt {
    0%, 100% { transform: rotate(4deg) translateY(0); }
    50% { transform: rotate(4deg) translateY(-8px); }
}
.hero-card-badge-ai {
    background: linear-gradient(135deg, var(--color-accent, #A78BFA), var(--color-primary, #3A50F6));
    color: #fff;
}
.progress-fill-ai {
    background: linear-gradient(90deg, var(--color-accent, #A78BFA), var(--color-primary, #3A50F6));
}

.hero-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.hero-card-badge {
    background: var(--color-primary-50);
    color: var(--color-primary);
    font-size: var(--text-xs);
    font-weight: 700;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
}

.hero-card-price {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-primary);
    font-size: var(--text-lg);
}

.hero-card-main h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
}

.hero-card-main p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.hero-card-meta {
    display: flex;
    gap: var(--space-4);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-bottom: var(--space-4);
}

.hero-card-progress {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: var(--color-gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-full);
    transition: width 1s var(--ease-out);
}

.hero-card-progress span {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

/* Floating cards */
.hero-card-float {
    position: absolute;
    padding: var(--space-3) var(--space-5);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    border-radius: var(--radius-xl);
    font-size: var(--text-sm);
    white-space: nowrap;
}

.hero-card-float strong {
    display: block;
    font-size: var(--text-sm);
}

.hero-card-float span {
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

.hero-float-icon {
    font-size: var(--text-2xl);
}

.hero-card-float-1 {
    top: 10%;
    right: -10px;
    animation: floatSide 5s ease-in-out infinite;
}

.hero-card-float-2 {
    bottom: 15%;
    left: -10px;
    animation: floatSide 5s ease-in-out infinite reverse;
}

@keyframes floatSide {
    0%, 100% { transform: translateX(0) translateY(0); }
    50% { transform: translateX(5px) translateY(-8px); }
}

/* Hero faces — portraits en arrière-plan des cartes */
.hero-faces {
    position: absolute;
    inset: 0;
    pointer-events: none;
    /* Pas de z-index ici : chaque portrait gère son empilement individuellement */
}
.hero-face {
    position: absolute;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 24px 60px -14px rgba(30, 27, 58, 0.38), 0 6px 16px rgba(30, 27, 58, 0.14);
    border: 5px solid #fff;
    background: #fff;
}
.hero-face img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 18%;
    display: block;
}
.hero-face-1 {
    top: -30px;
    left: -20px;
    width: 140px;
    height: 175px;
    animation: floatFaceA 7s ease-in-out infinite;
    z-index: 5;
}
/* Portrait central — derrière les cartes pour rester lisible mais visible sur les côtés */
.hero-face-2 {
    top: 50%;
    left: 50%;
    margin-top: -140px;
    margin-left: -110px;
    width: 220px;
    height: 280px;
    animation: floatFaceB 8s ease-in-out infinite;
    z-index: 1;
}
.hero-face-3 {
    bottom: -25px;
    left: -15px;
    width: 150px;
    height: 185px;
    animation: floatFaceC 7.5s ease-in-out infinite;
    z-index: 5;
}
@keyframes floatFaceA {
    0%, 100% { transform: rotate(-7deg) translateY(0); }
    50% { transform: rotate(-7deg) translateY(-8px); }
}
@keyframes floatFaceB {
    0%, 100% { transform: rotate(3deg) translateY(0); }
    50% { transform: rotate(3deg) translateY(-7px); }
}
@keyframes floatFaceC {
    0%, 100% { transform: rotate(-4deg) translateY(0); }
    50% { transform: rotate(-4deg) translateY(-7px); }
}
/* Les cartes passent devant les portraits décoratifs, mais le portrait central reste au-dessus */
.hero-card-main { position: relative; z-index: 2; }
.hero-card-float { z-index: 3; }

/* --- Stats --- */
.stats-section {
    padding: var(--space-16) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
    text-align: center;
}

.stat-card {
    padding: var(--space-6);
}

.stat-number {
    font-family: var(--font-display);
    font-size: var(--text-5xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    margin-top: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

/* --- Section Headers --- */
.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-4);
    background: var(--color-primary-50);
    color: var(--color-primary);
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.section-badge-light {
    background: rgba(255,255,255,0.1);
    color: var(--color-primary-light);
}

.section-title {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    margin-bottom: var(--space-4);
}

.section-title-light {
    color: var(--text-inverse);
}

.section-desc {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* --- Steps / How It Works --- */
.steps-grid {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-4);
}

.step-card {
    flex: 1;
    max-width: 320px;
    text-align: center;
    padding: var(--space-8);
    background: var(--surface-card);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-card);
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.step-number {
    font-family: var(--font-display);
    font-size: var(--text-5xl);
    font-weight: 700;
    color: var(--color-primary-100);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.step-icon {
    font-size: 48px;
    margin-bottom: var(--space-4);
}

.step-card h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-3);
}

.step-card p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

.step-connector {
    width: 60px;
    height: 2px;
    background: var(--color-gray-200);
    margin-top: 120px;
    flex-shrink: 0;
}

/* --- Filter Bar --- */
.filter-bar {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-10);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-2) var(--space-5);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-gray-200);
    background: var(--surface-primary);
    transition: all var(--duration-fast) var(--ease-out);
}

.filter-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* --- Courses Grid --- */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.section-cta {
    text-align: center;
    margin-top: var(--space-12);
}

/* --- Testimonials --- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    align-items: stretch;
}

.testimonial-card {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    transition: all var(--duration-normal) var(--ease-out);
}

.testimonial-card:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-4px);
}

.testimonial-card-featured {
    background: rgba(58,80,246,0.1);
    border-color: rgba(255,107,53,0.2);
}

.testimonial-stars {
    color: var(--color-accent);
    font-size: var(--text-lg);
    margin-bottom: var(--space-4);
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: rgba(255,255,255,0.85);
    margin-bottom: var(--space-6);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.testimonial-author strong {
    display: block;
    color: white;
    font-size: var(--text-sm);
}

.testimonial-author span {
    font-size: var(--text-xs);
    color: rgba(255,255,255,0.5);
}

/* --- Pricing --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    align-items: stretch;
}

.pricing-card {
    background: var(--surface-card);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    position: relative;
    transition: all var(--duration-normal) var(--ease-out);
}

.pricing-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.pricing-card-featured {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
    transform: scale(1.04);
}

.pricing-card-featured:hover {
    transform: scale(1.04) translateY(-4px);
}

.pricing-popular-tag {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    font-size: var(--text-xs);
    font-weight: 700;
    padding: var(--space-1) var(--space-5);
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.pricing-header h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-1);
}

.pricing-header p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

.pricing-price {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-gray-200);
}

.pricing-from {
    display: block;
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-bottom: var(--space-1);
}

.pricing-amount {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--text-primary);
}

.pricing-currency {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.pricing-features {
    margin-bottom: var(--space-8);
}

.pricing-features li {
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
}

.pricing-features li strong {
    color: var(--text-primary);
}

/* --- FAQ --- */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.faq-item {
    background: var(--surface-card);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out);
}

.faq-item[open] {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: var(--space-5) var(--space-6);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--text-base);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    list-style: none;
    transition: color var(--duration-fast);
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::after {
    content: '+';
    font-size: var(--text-xl);
    color: var(--color-primary);
    transition: transform var(--duration-normal) var(--ease-out);
    font-weight: 300;
}

.faq-item[open] .faq-question::after {
    transform: rotate(45deg);
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-answer {
    padding: 0 var(--space-6) var(--space-5);
    animation: fadeIn var(--duration-normal) var(--ease-out);
}

.faq-answer p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- CTA Section --- */
.cta-section {
    padding: var(--space-16) 0 var(--space-24);
}

.cta-card {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--radius-3xl);
    padding: var(--space-16);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(167,139,250,0.18) 0%, transparent 60%),
                radial-gradient(circle at 70% 50%, rgba(255,255,255,0.08) 0%, transparent 60%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    color: white;
    margin-bottom: var(--space-4);
}

.cta-content p {
    color: rgba(255,255,255,0.7);
    font-size: var(--text-lg);
    max-width: 500px;
    margin: 0 auto var(--space-8);
}

.newsletter-form {
    max-width: 480px;
    margin: 0 auto;
}

.input-group {
    display: flex;
    gap: var(--space-2);
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-full);
    padding: var(--space-1);
}

.input-group input {
    flex: 1;
    background: transparent;
    border: none;
    color: white;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    padding: var(--space-3) var(--space-4);
    outline: none;
}

.input-group input::placeholder {
    color: rgba(255,255,255,0.4);
}

.input-group .btn {
    flex-shrink: 0;
}

.form-hint {
    margin-top: var(--space-3);
    font-size: var(--text-xs);
    color: rgba(255,255,255,0.4);
}

/* --- Footer — éditorial ivoire papier --- */
.footer {
    background: #FBF6EA;
    color: var(--text-secondary);
    padding: var(--space-16) 0 var(--space-8);
    border-top: 1px solid #F2E6C8;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-12);
}

.footer-brand p {
    font-size: var(--text-sm);
    margin-top: var(--space-4);
    line-height: var(--leading-relaxed);
    max-width: 300px;
    color: var(--text-secondary);
}

.footer-brand .logo-text {
    color: var(--color-secondary);
}

.social-links {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-4);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: #fff;
    border: 1px solid #F2E6C8;
    color: var(--color-secondary);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: 700;
    transition: all var(--duration-fast);
}

.social-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.footer-links h4 {
    color: var(--color-secondary);
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.footer-links a {
    display: block;
    padding: var(--space-1) 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    transition: color var(--duration-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    border-top: 1px solid #F2E6C8;
    padding-top: var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
    color: var(--text-secondary);
}

.footer-bottom p {
    font-size: var(--text-sm);
}

.payment-methods {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
}

.payment-icon {
    background: rgba(255,255,255,0.08);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 500;
}

/* --- Toast --- */
.toast {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    background: var(--color-gray-900);
    color: white;
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-toast);
    transform: translateY(120%);
    transition: transform var(--duration-slow) var(--ease-spring);
    font-size: var(--text-sm);
}

.toast:not([hidden]) {
    transform: translateY(0);
}

.toast-icon {
    width: 28px;
    height: 28px;
    background: var(--color-success);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    flex-shrink: 0;
}

.toast-close {
    color: rgba(255,255,255,0.5);
    font-size: var(--text-xl);
    padding: 0;
    margin-left: var(--space-2);
}

.toast-close:hover {
    color: white;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-trust { justify-content: center; }
    .hero-visual { display: none; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .courses-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials-grid { grid-template-columns: 1fr; max-width: 600px; margin: 0 auto; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .pricing-card-featured { transform: none; }
    .pricing-card-featured:hover { transform: translateY(-4px); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    :root {
        --container-padding: var(--space-4);
    }

    .section { padding: var(--space-16) 0; }

    .top-bar { display: none; }

    .nav-main { display: none; }
    .header-actions .btn-ghost,
    .header-actions .btn-primary.btn-sm { display: none; }
    .mobile-menu-toggle { display: flex; }

    .header-inner { height: 64px; }

    .steps-grid {
        flex-direction: column;
        align-items: center;
    }

    .step-connector {
        width: 2px;
        height: 40px;
        margin-top: 0;
    }

    .courses-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: var(--space-4); }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }

    .cta-card { padding: var(--space-8) var(--space-6); }
    .input-group {
        flex-direction: column;
        border-radius: var(--radius-xl);
    }
    .input-group .btn {
        border-radius: var(--radius-lg);
    }
}

@media (max-width: 480px) {
    .hero-title { font-size: var(--text-3xl); }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .filter-bar { gap: var(--space-1); }
    .filter-btn { font-size: var(--text-xs); padding: var(--space-2) var(--space-3); }
}