/* GC Lab — Design System */
:root {
    --bg: #0f1117;
    --bg2: #161920;
    --bg3: #1e222d;
    --border: rgba(255,255,255,.06);
    --text: #f0f2f8;
    --text2: #8b95ad;
    --text3: #4b5572;
    --accent: #0ea5e9;
    --accent2: #38bdf8;
    --accent-glow: rgba(14,165,233,.15);
    --gradient: linear-gradient(135deg, #0ea5e9, #6366f1);
    --gradient2: linear-gradient(135deg, #6366f1, #ec4899);
    --card-bg: rgba(22,25,32,.85);
    --sans: 'Inter', system-ui, -apple-system, sans-serif;
    --mono: 'SF Mono', 'Fira Code', monospace;
    --green: #22c55e;
    --orange: #f59e0b;
}
[data-theme="light"] {
    --bg: #f8f9fc;
    --bg2: #fff;
    --bg3: #f0f2f7;
    --border: rgba(0,0,0,.08);
    --text: #1a1d2e;
    --text2: #5b6380;
    --text3: #8b95ad;
    --accent: #0284c7;
    --accent2: #0369a1;
    --accent-glow: rgba(2,132,199,.1);
    --card-bg: rgba(255,255,255,.95);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    transition: background .35s, color .35s;
    overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: color .15s; }
a:hover { color: var(--accent2); }
img { max-width: 100%; height: auto; }

/* ── Container ── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
.container-sm { max-width: 800px; margin: 0 auto; padding: 0 1.5rem; }

/* ── Header ── */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: .75rem 0;
    background: transparent;
    transition: background .3s, backdrop-filter .3s, box-shadow .3s;
}
.header.scrolled {
    background: var(--bg2);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 30px rgba(0,0,0,.15);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: .5rem; text-decoration: none; }
.logo img { height: 32px; }
.logo-text { font-weight: 800; font-size: 1.15rem; color: var(--text); }
.logo-text span { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav { display: flex; align-items: center; gap: .25rem; }
.nav a {
    padding: .45rem .75rem; border-radius: 8px; font-size: .82rem; font-weight: 500;
    color: var(--text2); transition: .15s;
}
.nav a:hover, .nav a.active { color: var(--text); background: var(--accent-glow); }
.nav-cta {
    background: var(--gradient) !important; color: #fff !important;
    padding: .45rem 1rem !important; border-radius: 8px; font-weight: 700 !important;
}
.nav-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: 8px; padding: .35rem .5rem; cursor: pointer; }
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--text); margin: 3px 0; transition: .2s; }
.theme-toggle {
    background: none; border: 1px solid var(--border); border-radius: 8px;
    color: var(--text2); cursor: pointer; padding: .3rem; display: flex;
    width: 30px; height: 30px; align-items: center; justify-content: center; transition: .2s;
}
.theme-toggle:hover { border-color: var(--accent); }
.icon-sun { display: none; } .icon-moon { display: block; }
[data-theme="light"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: none; }

/* ── Hero ── */
.hero {
    position: relative; overflow: hidden;
    padding: 8rem 1.5rem 5rem; text-align: center;
    min-height: 85vh; display: flex; align-items: center; justify-content: center;
}
.hero-bg {
    position: absolute; inset: 0; width: 100%; height: 100%;
    object-fit: cover; z-index: 0;
}
.hero-overlay {
    position: absolute; inset: 0; z-index: 1;
    background: linear-gradient(180deg, rgba(15,17,23,.5) 0%, rgba(15,17,23,.85) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 800px; margin: 0 auto; }
.hero h1 {
    font-size: 3.2rem; font-weight: 900; letter-spacing: -.04em;
    line-height: 1.1; margin-bottom: .75rem; color: #fff;
}
.hero h1 .gradient {
    background: var(--gradient); -webkit-background-clip: text;
    -webkit-text-fill-color: transparent; background-clip: text;
}
.hero .sub {
    font-size: 1.15rem; color: rgba(255,255,255,.75);
    max-width: 560px; margin: 0 auto 2rem;
}
.hero-actions { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }

/* ── Buttons ── */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
    background: var(--gradient); color: #fff; border: none; border-radius: 10px;
    padding: .7rem 1.5rem; font-size: .9rem; font-weight: 700;
    cursor: pointer; transition: .2s; text-decoration: none; font-family: var(--sans);
    box-shadow: 0 4px 20px rgba(14,165,233,.2);
}
.btn:hover { opacity: .9; transform: translateY(-1px); box-shadow: 0 6px 28px rgba(14,165,233,.3); color: #fff; }
.btn-lg { padding: .85rem 2rem; font-size: 1rem; border-radius: 12px; }
.btn-sm { padding: .45rem .85rem; font-size: .8rem; border-radius: 8px; }
.btn-outline {
    background: transparent; border: 1px solid rgba(255,255,255,.2);
    color: rgba(255,255,255,.9); box-shadow: none;
}
.btn-outline:hover { border-color: var(--accent); color: #fff; background: var(--accent-glow); }
.btn-white { background: #fff; color: var(--bg); box-shadow: 0 4px 20px rgba(0,0,0,.15); }
.btn-white:hover { background: #f0f0f0; color: var(--bg); }

/* ── Sections ── */
.section { padding: 5rem 0; }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { font-size: 2rem; font-weight: 900; letter-spacing: -.03em; margin-bottom: .5rem; }
.section-header .gradient { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-header p { color: var(--text2); font-size: 1.05rem; max-width: 560px; margin: 0 auto; }

/* ── Cards ── */
.card {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 16px; padding: 2rem; backdrop-filter: blur(8px);
    transition: .3s;
}
.card:hover { border-color: rgba(14,165,233,.15); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,0,0,.15); }

/* ── Poles (3 services) ── */
.poles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.pole { text-align: center; padding: 2.5rem 1.5rem; position: relative; overflow: hidden; }
.pole-icon {
    width: 64px; height: 64px; border-radius: 16px; display: flex;
    align-items: center; justify-content: center; font-size: 1.8rem;
    margin: 0 auto 1.25rem; transition: .3s;
}
.pole h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: .5rem; }
.pole p { font-size: .88rem; color: var(--text2); margin-bottom: 1rem; line-height: 1.6; }
.pole-link { font-size: .85rem; font-weight: 600; color: var(--accent); }

/* ── Stats ── */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.stat { text-align: center; padding: 1.5rem 1rem; }
.stat-num {
    font-size: 2.8rem; font-weight: 900; line-height: 1;
    background: var(--gradient); -webkit-background-clip: text;
    -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-label { font-size: .78rem; color: var(--text2); margin-top: .35rem; font-weight: 500; }

/* ── Portfolio Grid ── */
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.portfolio-item {
    position: relative; border-radius: 14px; overflow: hidden;
    aspect-ratio: 4/3; cursor: pointer;
}
.portfolio-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.portfolio-item:hover img { transform: scale(1.05); }
.portfolio-overlay {
    position: absolute; inset: 0; background: linear-gradient(transparent 40%, rgba(0,0,0,.8));
    display: flex; flex-direction: column; justify-content: flex-end; padding: 1.25rem;
    opacity: 0; transition: opacity .3s;
}
.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.portfolio-overlay h4 { color: #fff; font-size: .95rem; font-weight: 700; }
.portfolio-overlay span { color: rgba(255,255,255,.7); font-size: .78rem; }

/* ── Filters ── */
.filters { display: flex; gap: .35rem; justify-content: center; margin-bottom: 2rem; flex-wrap: wrap; }
.filter-btn {
    background: var(--bg3); border: 1px solid var(--border); border-radius: 8px;
    padding: .45rem 1rem; font-size: .82rem; font-weight: 600; color: var(--text2);
    cursor: pointer; transition: .15s; font-family: var(--sans);
}
.filter-btn:hover, .filter-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── Testimonials ── */
.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.testimonial { padding: 1.5rem; }
.testimonial-text { font-size: .9rem; color: var(--text2); font-style: italic; margin-bottom: 1rem; line-height: 1.7; }
.testimonial-author { font-weight: 700; font-size: .85rem; }
.testimonial-role { font-size: .78rem; color: var(--text3); }
.testimonial-stars { color: var(--orange); font-size: .85rem; margin-bottom: .5rem; }

/* ── Process Steps ── */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; counter-reset: step; }
.process-step { text-align: center; padding: 1.5rem 1rem; position: relative; counter-increment: step; }
.process-step::before {
    content: counter(step); display: flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: 50%; background: var(--gradient);
    color: #fff; font-weight: 800; font-size: .95rem; margin: 0 auto .75rem;
}
.process-step h4 { font-size: .9rem; font-weight: 700; margin-bottom: .3rem; }
.process-step p { font-size: .8rem; color: var(--text2); }

/* ── Pricing Tables ── */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.price-card { text-align: center; padding: 2rem 1.5rem; position: relative; }
.price-card.featured { border-color: var(--accent); box-shadow: 0 0 40px var(--accent-glow); }
.price-badge { position: absolute; top: -10px; left: 50%; transform: translateX(-50%); background: var(--gradient); color: #fff; padding: .2rem .75rem; border-radius: 20px; font-size: .7rem; font-weight: 700; }
.price-name { font-size: .85rem; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: .05em; }
.price-amount { font-size: 2.5rem; font-weight: 900; margin: .5rem 0; }
.price-amount span { font-size: 1rem; font-weight: 500; color: var(--text2); }
.price-features { list-style: none; margin: 1.25rem 0; text-align: left; }
.price-features li { padding: .35rem 0; font-size: .85rem; color: var(--text2); display: flex; align-items: center; gap: .5rem; }
.price-features li::before { content: '✓'; color: var(--green); font-weight: 700; }

/* ── Forms ── */
.form-group { margin-bottom: .75rem; }
.form-group label { display: block; font-size: .78rem; color: var(--text2); margin-bottom: .25rem; font-weight: 500; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
input, textarea, select {
    width: 100%; background: var(--bg3); border: 1px solid var(--border);
    border-radius: 10px; color: var(--text); font-family: var(--sans);
    font-size: .9rem; padding: .7rem 1rem; outline: none; transition: .15s;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
textarea { resize: vertical; min-height: 120px; }
input::placeholder, textarea::placeholder { color: var(--text3); }

/* ── Devis Grid ── */
.devis-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 3rem; align-items: start; }

/* ── Contact Grid ── */
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem; align-items: start; }

/* ── CTA Section ── */
.cta-section {
    text-align: center; padding: 4rem 2rem; border-radius: 24px;
    background: var(--gradient); position: relative; overflow: hidden;
}
.cta-section::before {
    content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
    background: radial-gradient(circle at 30% 50%, rgba(255,255,255,.1), transparent 60%);
}
.cta-section h2 { font-size: 1.8rem; font-weight: 900; color: #fff; margin-bottom: .5rem; position: relative; z-index: 1; }
.cta-section p { color: rgba(255,255,255,.8); margin-bottom: 1.5rem; position: relative; z-index: 1; }
.cta-section { opacity: 1 !important; transform: none !important; }
.cta-section * { position: relative; z-index: 2; }
.cta-section .btn-white { background: #fff; color: #0ea5e9; font-weight: 800; box-shadow: 0 4px 20px rgba(0,0,0,.15); }
.cta-section .btn-white:hover { background: #f0f0f0; color: #0284c7; }
.cta-section a { display: inline-block; cursor: pointer; }

/* ── Footer ── */
.footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 3rem 0 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.footer-brand { }
.footer-brand p { font-size: .85rem; color: var(--text2); margin-top: .5rem; max-width: 280px; }
.footer-col h4 { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text3); margin-bottom: .75rem; }
.footer-col a { display: block; font-size: .85rem; color: var(--text2); padding: .2rem 0; transition: .15s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 1.5rem; border-top: 1px solid var(--border); font-size: .75rem; color: var(--text3); flex-wrap: wrap; gap: .5rem; }
.footer-bottom a { color: var(--text3); }
.footer-bottom a:hover { color: var(--accent); }

/* ── Cookie Banner ── */
.cookie-banner {
    display: none; position: fixed; bottom: 0; left: 0; right: 0;
    background: var(--bg2); border-top: 1px solid var(--border);
    padding: .75rem 1.5rem; z-index: 200; backdrop-filter: blur(16px);
}
.cookie-inner {
    max-width: 1100px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem; flex-wrap: wrap;
}
.cookie-inner p { font-size: .8rem; color: var(--text2); margin: 0; }

/* ── Animations ── */
/* Animations: visible by default, JS adds subtle entrance */
.anim { transition: opacity .6s ease, transform .6s ease; }
.anim-ready { opacity: 0; transform: translateY(20px); }
.anim-ready.visible { opacity: 1; transform: translateY(0); }
.anim-delay-1 { transition-delay: .1s; }
.anim-delay-2 { transition-delay: .2s; }
.anim-delay-3 { transition-delay: .3s; }
.anim-delay-4 { transition-delay: .4s; }

/* ── Legal Pages ── */
.legal h2 { font-size: 1.1rem; font-weight: 800; margin: 1.75rem 0 .4rem; color: var(--accent); }
.legal h3 { font-size: .92rem; font-weight: 700; margin: 1rem 0 .3rem; }
.legal p, .legal li { font-size: .88rem; color: var(--text2); line-height: 1.7; margin-bottom: .5rem; }
.legal ul { padding-left: 1.25rem; margin-bottom: .75rem; }
.legal .update { font-size: .78rem; color: var(--text3); margin-bottom: 1.5rem; }

/* ── Responsive ── */
@media (max-width: 968px) {
    .nav { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: var(--bg2); flex-direction: column; align-items: center; justify-content: center; gap: .5rem; z-index: 99; }
    .nav.open { display: flex; }
    .nav a { font-size: 1.1rem; padding: .75rem 1.5rem; }
    .nav-toggle { display: flex; flex-direction: column; gap: 3px; }
    .poles { grid-template-columns: 1fr; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials { grid-template-columns: 1fr; }
    .process { grid-template-columns: repeat(2, 1fr); }
    .pricing { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .hero { padding: 7rem 1rem 3rem; min-height: 70vh; }
    .hero h1 { font-size: 2rem; }
    .hero .sub { font-size: .95rem; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-actions .btn { width: 100%; }
    .section { padding: 3rem 0; }
    .section-header h2 { font-size: 1.5rem; }
    .stats { grid-template-columns: repeat(2, 1fr); gap: .5rem; }
    .stat-num { font-size: 2rem; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .process { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .container { padding: 0 1rem; }
    .devis-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .contact-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}