/* ═══════════════════════════════════════════════════════
   ERMINOX — "Glassmorphism Steel" Vibe
   Frosted glass cards over steel-gray gradients
   Metallic borders, soft blue glows, depth hover
   Clean sans, airy spacing, minimal UI chrome
   ═══════════════════════════════════════════════════════ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    /* Steel gradient palette */
    --bg: #0f1117;
    --bg-surface: #141620;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --bg-darker: #0b0d13;
    --bg-alt: #111319;

    /* Glass */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-bg-hover: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-hover: rgba(140, 165, 255, 0.25);
    --glass-blur: 20px;

    /* Blue glow accent */
    --accent: #8ca5ff;
    --accent-bright: #a8bdff;
    --accent-dim: #5d7acc;
    --accent-glow: rgba(140, 165, 255, 0.12);
    --accent-glow-strong: rgba(140, 165, 255, 0.25);
    --accent-subtle: rgba(140, 165, 255, 0.06);

    /* Metallic */
    --metal-100: #e8eaef;
    --metal-200: #c0c4cc;
    --metal-300: #8a8f9d;
    --metal-400: #5a5f6e;
    --metal-500: #3a3f4e;

    /* Text */
    --text: #eaedf4;
    --text-secondary: #8a8f9d;
    --text-muted: #5a5f6e;

    /* Typography */
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Layout */
    --max-w: 1200px;
    --header-h: 64px;

    /* Radii */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Shadows */
    --shadow: 0 4px 24px rgba(0, 0, 0, .3);
    --shadow-lg: 0 8px 48px rgba(0, 0, 0, .4);
    --shadow-glow: 0 0 40px rgba(140, 165, 255, .06);

    /* Motion */
    --ease: cubic-bezier(.25, .1, .25, 1);
    --ease-out: cubic-bezier(.16, 1, .3, 1);
    --duration: .3s;
    --duration-slow: .5s;
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
    font-family: var(--font); font-size: 16px; line-height: 1.6;
    color: var(--text); background: var(--bg); overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font: inherit; border: none; cursor: pointer; background: none; }
h1, h2, h3, h4, h5 { line-height: 1.15; font-weight: 700; }
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.hide-mobile { }

/* ═══ GLASS CARD — Core component ═══ */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur)) saturate(1.3);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    transition:
        background var(--duration) var(--ease),
        border-color var(--duration) var(--ease),
        box-shadow var(--duration-slow) var(--ease),
        transform var(--duration-slow) var(--ease-out);
}
.glass-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-glow), var(--shadow);
    transform: translateY(-4px);
}

.glass-chip {
    background: var(--glass-bg);
    backdrop-filter: blur(12px) saturate(1.2);
    -webkit-backdrop-filter: blur(12px) saturate(1.2);
    border: 1px solid var(--glass-border);
}

/* ═══ SCROLL PROGRESS ═══ */
.scroll-progress {
    position: fixed; top: 0; left: 0; z-index: 9999;
    height: 2px; width: 0;
    background: linear-gradient(90deg, var(--accent-dim), var(--accent), var(--accent-bright));
    box-shadow: 0 0 12px var(--accent-glow-strong);
    transition: none;
}

/* ═══ HEADER ═══ */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    height: var(--header-h);
    background: rgba(15, 17, 23, .6);
    backdrop-filter: blur(24px) saturate(1.4);
    -webkit-backdrop-filter: blur(24px) saturate(1.4);
    border-bottom: 1px solid var(--glass-border);
    transition: background var(--duration) var(--ease), box-shadow var(--duration) var(--ease), transform var(--duration) var(--ease);
}
.header.scrolled {
    background: rgba(15, 17, 23, .88);
    box-shadow: 0 1px 0 var(--glass-border), 0 4px 24px rgba(0,0,0,.3);
}
.header.header--hidden { transform: translateY(-100%); }
.header-inner {
    max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
    height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}

/* Logo */
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.logo-mark {
    display: flex; align-items: center; justify-content: center;
    width: 36px; height: 36px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--accent);
    background: var(--accent-subtle);
}
.logo-text {
    font-size: 15px; font-weight: 800; letter-spacing: .12em;
    color: var(--text);
}

/* Nav */
.nav { display: flex; align-items: center; gap: 2px; }
.nav-link {
    padding: 8px 14px; font-size: 13px; font-weight: 500;
    color: var(--text-secondary); border-radius: var(--radius-sm);
    transition: color var(--duration) var(--ease), background var(--duration) var(--ease);
    position: relative;
}
.nav-link:hover { color: var(--text); background: var(--accent-subtle); }
.nav-link::after {
    content: ''; position: absolute; bottom: 2px; left: 50%; width: 0; height: 1.5px;
    background: var(--accent); border-radius: 1px;
    transition: width .3s var(--ease-out), left .3s var(--ease-out);
}
.nav-link:hover::after { width: 60%; left: 20%; }

/* Header actions */
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

/* Burger */
.burger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.burger span {
    display: block; width: 22px; height: 1.5px;
    background: var(--metal-200); border-radius: 2px;
    transition: transform var(--duration) var(--ease), opacity var(--duration) var(--ease);
}
.burger.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
    display: none; position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    z-index: 999; background: rgba(15, 17, 23, .95);
    backdrop-filter: blur(24px);
    flex-direction: column; align-items: center; justify-content: center; gap: 8px; padding: 32px;
    opacity: 0; pointer-events: none; transition: opacity .3s var(--ease);
}
.mobile-nav.active { display: flex; opacity: 1; pointer-events: auto; }
.mobile-nav a {
    font-size: 20px; font-weight: 600; padding: 16px 28px;
    color: var(--text); border-radius: var(--radius);
    transition: background var(--duration) var(--ease);
}
.mobile-nav a:hover { background: var(--accent-subtle); }

/* ═══ BUTTONS ═══ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 24px; font-size: 14px; font-weight: 600;
    border-radius: var(--radius); border: 1px solid transparent;
    cursor: pointer; transition: all var(--duration) var(--ease);
    white-space: nowrap; text-decoration: none; line-height: 1.4;
    position: relative; overflow: hidden;
}
.btn-arrow { transition: transform .2s var(--ease); display: inline-block; }
.btn:hover .btn-arrow { transform: translateX(3px); }

.btn--primary {
    background: var(--accent);
    color: #0f1117;
    border-color: var(--accent);
    box-shadow: 0 0 24px rgba(140, 165, 255, .15);
}
.btn--primary:hover {
    background: var(--accent-bright);
    border-color: var(--accent-bright);
    box-shadow: 0 0 36px rgba(140, 165, 255, .25);
    transform: translateY(-1px);
}

.btn--glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text);
    border-color: var(--glass-border);
}
.btn--glass:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-glow);
}

.btn--sm { padding: 8px 18px; font-size: 13px; }
.btn--lg { padding: 16px 32px; font-size: 15px; }

/* ═══ HERO ═══ */
.hero {
    position: relative;
    padding: calc(var(--header-h) + 100px) 24px 120px;
    text-align: center;
    min-height: 100vh; display: flex; align-items: center;
    background:
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(140, 165, 255, .06) 0%, transparent 60%),
        linear-gradient(180deg, var(--bg) 0%, #0d0f16 100%);
    overflow: hidden;
}

/* Ambient orbs */
.hero-orb {
    position: absolute; border-radius: 50%; pointer-events: none;
    filter: blur(80px); opacity: .35;
}
.hero-orb--1 {
    width: 500px; height: 500px; top: -10%; left: -5%;
    background: radial-gradient(circle, rgba(140, 165, 255, .15), transparent 70%);
}
.hero-orb--2 {
    width: 400px; height: 400px; top: 20%; right: -8%;
    background: radial-gradient(circle, rgba(100, 140, 255, .1), transparent 70%);
}
.hero-orb--3 {
    width: 300px; height: 300px; bottom: 5%; left: 20%;
    background: radial-gradient(circle, rgba(160, 180, 255, .08), transparent 70%);
}

.hero-inner { max-width: 860px; margin: 0 auto; width: 100%; position: relative; z-index: 2; }

/* Badge */
.hero-badge {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 8px 20px 8px 14px;
    border-radius: 999px; font-size: 13px; font-weight: 500;
    color: var(--text-secondary); margin-bottom: 40px;
}
.badge-pulse {
    width: 8px; height: 8px; background: #34d399; border-radius: 50%; flex-shrink: 0;
    animation: pulse-dot 2s ease infinite;
}
.badge-sep { color: var(--metal-400); font-weight: 300; }
.badge-mono { font-size: 12px; letter-spacing: .04em; color: var(--text-muted); text-transform: uppercase; }
@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(52, 211, 153, .4); }
    50% { opacity: .7; box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}

/* Title */
.hero-title {
    font-size: clamp(44px, 7vw, 78px);
    font-weight: 800; letter-spacing: -.04em;
    line-height: .95; margin-bottom: 24px;
    color: var(--text);
}
.hero-accent {
    background: linear-gradient(135deg, var(--accent-bright), var(--accent-dim));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: clamp(15px, 1.8vw, 18px);
    color: var(--text-secondary); font-weight: 400;
    max-width: 540px; margin: 0 auto 48px; line-height: 1.7;
}

/* Hero CTAs */
.hero-ctas {
    display: flex; align-items: center; justify-content: center; gap: 16px;
    margin-bottom: 72px; flex-wrap: wrap;
}

/* Hero stats — glass card */
.hero-stats {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 24px 40px; gap: 0;
}
.hero-stat {
    display: flex; flex-direction: column; align-items: center;
    padding: 0 32px;
}
.hero-stat-num {
    font-size: clamp(32px, 4vw, 46px); font-weight: 800;
    letter-spacing: -.03em; line-height: 1; color: var(--text);
}
.hero-stat-unit {
    font-size: clamp(18px, 2vw, 22px); font-weight: 700;
    color: var(--accent); display: inline;
}
.hero-stat-label {
    font-size: 11px; font-weight: 500; text-transform: uppercase;
    letter-spacing: .08em; color: var(--text-muted); margin-top: 6px;
}
.hero-stat-sep {
    width: 1px; height: 40px;
    background: var(--glass-border); flex-shrink: 0;
}

/* ═══ MARQUEE ═══ */
.marquee-bar {
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
    padding: 14px 0; overflow: hidden;
    background: var(--bg-surface);
}
.marquee-track {
    display: flex; align-items: center; gap: 32px;
    white-space: nowrap;
    animation: marquee 35s linear infinite;
    width: max-content;
}
.marquee-item {
    font-size: 12px; font-weight: 600; text-transform: uppercase;
    letter-spacing: .1em; color: var(--metal-300);
}
.marquee-dot {
    width: 4px; height: 4px; background: var(--metal-500);
    border-radius: 50%; flex-shrink: 0;
}
@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ═══ SECTIONS ═══ */
.section { padding: 100px 0; position: relative; }
.section--alt { background: var(--bg-alt); }
.section--cta {
    background: var(--bg-surface);
    border-top: 1px solid var(--glass-border);
}

/* Section label */
.section-label {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 20px; font-size: 13px; font-weight: 500;
    text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted);
}
.label-tag {
    font-size: 12px; font-weight: 700;
    color: var(--accent); letter-spacing: .06em;
    padding: 4px 10px;
    border: 1px solid rgba(140, 165, 255, .2);
    border-radius: var(--radius-sm);
    background: var(--accent-subtle);
    font-variant-numeric: tabular-nums;
}

/* Section title */
.section-title {
    font-size: clamp(28px, 4vw, 48px); font-weight: 800;
    letter-spacing: -.03em; margin-bottom: 16px;
    color: var(--text);
}
.text-gradient {
    background: linear-gradient(135deg, var(--accent-bright), var(--accent-dim));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-sub {
    font-size: 16px; color: var(--text-secondary); line-height: 1.7;
    margin-bottom: 48px; max-width: 560px;
}
.section-cta-row { text-align: center; margin-top: 52px; }

/* ═══ PARCOURS GRID (3 cols) ═══ */
.parcours-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.parcours-card {
    padding: 36px 28px; display: flex; flex-direction: column;
    cursor: pointer; position: relative; overflow: hidden;
}
.parcours-icon {
    width: 56px; height: 56px;
    display: flex; align-items: center; justify-content: center;
    background: var(--accent-subtle);
    border: 1px solid rgba(140, 165, 255, .15);
    border-radius: var(--radius);
    color: var(--accent);
    margin-bottom: 24px;
    transition: background var(--duration) var(--ease), border-color var(--duration) var(--ease);
}
.parcours-card:hover .parcours-icon {
    background: rgba(140, 165, 255, .12);
    border-color: rgba(140, 165, 255, .3);
}
.parcours-tag {
    display: inline-block; font-size: 10px; font-weight: 700;
    text-transform: uppercase; letter-spacing: .08em;
    color: var(--accent); margin-bottom: 12px;
}
.parcours-card h3 {
    font-size: 20px; font-weight: 800; letter-spacing: -.02em;
    margin-bottom: 10px;
}
.parcours-card p {
    font-size: 14px; color: var(--text-secondary); line-height: 1.6;
    flex-grow: 1; margin-bottom: 20px;
}
.card-link {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 14px; font-weight: 600; color: var(--accent);
    transition: gap .2s var(--ease);
}
.glass-card:hover .card-link { gap: 10px; }

/* ═══ USAGE GRID (4 cols) ═══ */
.usage-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.usage-card {
    display: flex; flex-direction: column; align-items: flex-start;
    padding: 28px 24px;
    cursor: pointer; position: relative; overflow: hidden;
}
.usage-icon {
    width: 48px; height: 48px; margin-bottom: 20px;
    color: var(--metal-300);
    transition: color var(--duration) var(--ease);
}
.usage-card:hover .usage-icon { color: var(--accent); }
.usage-icon svg { width: 100%; height: 100%; }
.usage-card h3 {
    font-size: 18px; font-weight: 800; letter-spacing: -.02em;
    margin-bottom: 8px;
}
.usage-card p {
    font-size: 13px; color: var(--text-secondary); line-height: 1.5;
    flex-grow: 1; margin-bottom: 16px;
}
.card-arrow {
    font-size: 20px; color: var(--metal-400);
    transition: color var(--duration) var(--ease), transform .2s var(--ease);
}
.usage-card:hover .card-arrow { color: var(--accent); transform: translateX(4px); }

/* ═══ STEPS (Process) ═══ */
.steps-grid {
    display: flex; align-items: flex-start; gap: 0;
}
.step-card {
    flex: 1; padding: 28px 24px; text-align: center;
}
.step-card:hover { transform: translateY(-4px); }
.step-num {
    display: inline-block; font-size: 32px; font-weight: 800;
    color: var(--accent); letter-spacing: -.02em;
    margin-bottom: 16px; line-height: 1;
    opacity: .5;
}
.step-card h4 {
    font-size: 16px; font-weight: 700; margin-bottom: 8px;
}
.step-card p {
    font-size: 13px; color: var(--text-secondary); line-height: 1.6;
}
.step-connector {
    display: flex; align-items: center; padding-top: 40px;
    flex-shrink: 0;
}

/* ═══ GALLERY ═══ */
.gallery-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px;
}
.gallery-card { overflow: hidden; cursor: default; }
.gallery-img {
    position: relative; height: 200px; overflow: hidden;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}
.gallery-tag {
    position: absolute; top: 12px; left: 12px;
    padding: 4px 12px;
    background: rgba(15, 17, 23, .6); backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    font-size: 11px; font-weight: 600; color: var(--metal-200);
    text-transform: uppercase; letter-spacing: .05em;
}
.gallery-info { padding: 18px 20px; }
.gallery-info h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.gallery-meta { font-size: 12px; color: var(--text-muted); letter-spacing: .02em; }

/* ═══ KITS ═══ */
.kits-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.kit-card { overflow: hidden; }
.kit-card-img {
    background: rgba(255, 255, 255, .02);
    padding: 24px; display: flex; align-items: center; justify-content: center;
    height: 180px; border-bottom: 1px solid var(--glass-border);
}
.kit-thumb { width: 100%; height: 100%; max-width: 180px; }
.kit-card-info { padding: 20px 22px; }
.kit-tag {
    display: inline-block; padding: 3px 10px;
    font-size: 10px; font-weight: 600; text-transform: uppercase;
    letter-spacing: .06em;
    background: var(--accent-subtle); color: var(--accent);
    border: 1px solid rgba(140, 165, 255, .2); border-radius: var(--radius-sm);
}
.kit-card-info h4 {
    font-size: 16px; font-weight: 700; margin: 10px 0 8px;
}
.kit-price { font-size: 13px; color: var(--text-secondary); }
.kit-price strong { color: var(--text); font-weight: 700; }

/* ═══ GUIDES ═══ */
.guides-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.guide-card {
    display: flex; flex-direction: column;
    padding: 28px 24px;
    cursor: pointer;
}
.guide-icon {
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    background: var(--accent-subtle);
    border: 1px solid rgba(140, 165, 255, .15);
    border-radius: var(--radius); margin-bottom: 20px;
    color: var(--accent);
}
.guide-card h4 {
    font-size: 17px; font-weight: 800; letter-spacing: -.02em;
    margin-bottom: 8px;
}
.guide-card p {
    font-size: 14px; color: var(--text-secondary); line-height: 1.6;
    margin-bottom: 20px; flex-grow: 1;
}

/* ═══ CTA BLOCK ═══ */
.cta-block {
    text-align: center; max-width: 700px; margin: 0 auto;
    padding: 56px 40px;
}
.cta-block h2 {
    font-size: clamp(28px, 4vw, 42px); font-weight: 800;
    letter-spacing: -.03em; margin-bottom: 16px;
}
.cta-block p {
    font-size: 17px; color: var(--text-secondary);
    margin-bottom: 36px; line-height: 1.7;
}
.cta-actions {
    display: flex; align-items: center; justify-content: center;
    gap: 16px; flex-wrap: wrap; margin-bottom: 28px;
}
.cta-info {
    display: flex; align-items: center; justify-content: center;
    gap: 24px; font-size: 14px; color: var(--text-muted); flex-wrap: wrap;
}
.cta-info strong { color: var(--text); }

/* ═══ FOOTER ═══ */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--glass-border);
    color: var(--metal-300); padding: 64px 0 0;
}
.footer-grid {
    display: grid; grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: 40px; margin-bottom: 48px;
}
.footer-brand { max-width: 280px; }
.footer .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
.footer-col h5 {
    font-size: 11px; font-weight: 700; text-transform: uppercase;
    letter-spacing: .1em; color: var(--metal-200); margin-bottom: 16px;
}
.footer-col a {
    display: block; font-size: 14px; color: var(--text-muted);
    padding: 4px 0; transition: color var(--duration) var(--ease);
}
.footer-col a:hover { color: var(--text); }
.footer-bottom {
    display: flex; align-items: center; justify-content: space-between;
    padding: 24px 0; border-top: 1px solid var(--glass-border);
    flex-wrap: wrap; gap: 16px;
}
.footer-bottom p { font-size: 13px; color: var(--metal-500); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a {
    font-size: 13px; color: var(--metal-500);
    transition: color var(--duration) var(--ease);
}
.footer-legal a:hover { color: var(--metal-300); }

/* ═══ ANIMATIONS ═══ */
.anim-up {
    opacity: 0; transform: translateY(32px);
    transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}
.anim-up.visible { opacity: 1; transform: translateY(0); }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1024px) {
    .parcours-grid { grid-template-columns: 1fr; }
    .usage-grid { grid-template-columns: repeat(2, 1fr); }
    .kits-grid { grid-template-columns: repeat(2, 1fr); }
    .guides-grid { grid-template-columns: repeat(2, 1fr); }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { flex-wrap: wrap; gap: 16px; }
    .step-connector { display: none; }
    .step-card { min-width: calc(50% - 8px); }
}
@media (max-width: 768px) {
    :root { --header-h: 56px; }
    .section { padding: 72px 0; }
    .hero {
        padding: calc(var(--header-h) + 48px) 20px 64px;
        min-height: auto;
    }
    .hero-title { font-size: 36px; }
    .hero-sub { font-size: 15px; margin-bottom: 32px; }
    .hero-ctas { flex-direction: column; gap: 12px; }
    .hero-ctas .btn { width: 100%; }
    .hero-stats { flex-wrap: wrap; gap: 16px; padding: 20px 24px; }
    .hero-stat { padding: 0 20px; }
    .hero-stat-sep { display: none; }
    .hero-orb { display: none; }
    .hide-mobile { display: none; }
    .nav { display: none; }
    .header-actions .btn { display: none; }
    .burger { display: flex; }
    .mobile-nav.active { display: flex; }
    .parcours-grid { grid-template-columns: 1fr; gap: 16px; }
    .usage-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .usage-card { padding: 20px 16px; }
    .usage-card h3 { font-size: 16px; }
    .gallery-grid { grid-template-columns: 1fr; gap: 16px; }
    .kits-grid { grid-template-columns: 1fr; gap: 16px; }
    .guides-grid { grid-template-columns: 1fr; gap: 16px; }
    .steps-grid { flex-direction: column; gap: 12px; }
    .step-card { min-width: 100%; }
    .section-title { font-size: 28px; }
    .cta-block { padding: 36px 24px; }
    .cta-block h2 { font-size: 24px; }
    .cta-actions { flex-direction: column; gap: 12px; }
    .cta-actions .btn { width: 100%; }
    .cta-info { flex-direction: column; gap: 8px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-brand { max-width: 100%; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .footer-legal { justify-content: center; }
    .marquee-item { font-size: 11px; }
}
@media (max-width: 480px) {
    .hero-title { font-size: 30px; }
    .usage-grid { grid-template-columns: 1fr; }
    .container { padding: 0 16px; }
    .hero-stat-num { font-size: 28px; }
}

/* ═══ UTILITY ═══ */
::selection { background: rgba(140, 165, 255, .2); color: var(--text); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--metal-500); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--metal-400); }
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
    html { scroll-behavior: auto; }
}