:root {
    --bg: #000000;
    --bg2: #0a0a0a;
    --bg3: #111111;
    --bg4: #1a1a1a;
    --bg-card: #0d0d0d;
    --text: #f5f5f7;
    --text2: #86868b;
    --text3: #6e6e73;
    --accent: #2997ff;
    --accent2: #40c8e0;
    --green: #30d158;
    --purple: #bf5af2;
    --orange: #ff9f0a;
    --border: rgba(255,255,255,0.06);
    --gradient: linear-gradient(135deg, var(--accent), var(--accent2));
    --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Helvetica, Arial, sans-serif;
    --radius: 20px;
    --radius-sm: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.47; -webkit-font-smoothing: antialiased; overflow-x: hidden; }

/* === NAVIGATION === */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(0,0,0,0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border);
    height: 52px;
}
.nav-inner {
    max-width: 1200px; margin: 0 auto; padding: 0 2rem;
    display: flex; align-items: center; justify-content: space-between; height: 100%;
}
.nav-logo { font-size: 1.2rem; font-weight: 700; color: var(--text); text-decoration: none; letter-spacing: -0.02em; }
.nav-logo span { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
    color: var(--text2); text-decoration: none; font-size: 0.85rem; font-weight: 400;
    transition: color 0.3s; letter-spacing: 0.01em;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* === SECTIONS === */
.section { padding: 100px 0; }
.section-dark { background: var(--bg2); }
.section-darker { background: var(--bg3); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

/* === HERO === */
.hero {
    min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; padding: 120px 2rem 80px; position: relative; overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(ellipse at 50% 0%, rgba(41,151,255,0.08) 0%, transparent 60%);
    pointer-events: none;
}
.hero-eyebrow {
    font-size: 0.9rem; font-weight: 600; color: var(--accent); letter-spacing: 0.05em;
    text-transform: uppercase; margin-bottom: 1.5rem; opacity: 0;
    animation: fadeUp 1s 0.2s forwards;
}
.hero h1 {
    font-size: clamp(3rem, 8vw, 6rem); font-weight: 700; letter-spacing: -0.03em;
    line-height: 1.05; margin-bottom: 1.5rem; opacity: 0;
    animation: fadeUp 1s 0.4s forwards;
}
.hero h1 .gradient { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-sub {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem); color: var(--text2); max-width: 680px;
    line-height: 1.5; margin-bottom: 2.5rem; opacity: 0;
    animation: fadeUp 1s 0.6s forwards;
}
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; opacity: 0; animation: fadeUp 1s 0.8s forwards; }

/* === BUTTONS === */
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.9rem 2rem;
    border-radius: 980px; font-size: 1rem; font-weight: 500; text-decoration: none;
    transition: all 0.3s; cursor: pointer; border: none; font-family: var(--font);
}
.btn-primary { background: var(--gradient); color: #fff; }
.btn-primary:hover { filter: brightness(1.15); transform: scale(1.02); }
.btn-secondary { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.btn-secondary:hover { background: rgba(41,151,255,0.1); }
.btn-icon { font-size: 1.2rem; transition: transform 0.3s; }
.btn:hover .btn-icon { transform: translateX(3px); }

/* === SECTION HEADERS (Apple style) === */
.section-header { text-align: center; margin-bottom: 5rem; }
.section-eyebrow {
    font-size: 0.85rem; font-weight: 600; color: var(--accent); text-transform: uppercase;
    letter-spacing: 0.08em; margin-bottom: 1rem;
}
.section-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 700; letter-spacing: -0.025em;
    line-height: 1.1; margin-bottom: 1.2rem;
}
.section-subtitle { font-size: 1.15rem; color: var(--text2); max-width: 600px; margin: 0 auto; line-height: 1.5; }

/* === FEATURE CARDS (Apple product grid) === */
.features-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.2rem;
}
.feature-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 3rem 2.5rem; position: relative; overflow: hidden; transition: all 0.4s;
}
.feature-card:hover { border-color: rgba(41,151,255,0.2); transform: translateY(-4px); }
.feature-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(41,151,255,0.3), transparent);
    opacity: 0; transition: opacity 0.4s;
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
    width: 56px; height: 56px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; margin-bottom: 1.5rem; background: rgba(41,151,255,0.1);
}
.feature-card h3 { font-size: 1.4rem; font-weight: 600; margin-bottom: 0.8rem; letter-spacing: -0.01em; }
.feature-card p { color: var(--text2); font-size: 0.95rem; line-height: 1.6; }

/* === LARGE SHOWCASE (Apple product highlight) === */
.showcase {
    display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
    padding: 4rem 0;
}
.showcase-reverse { direction: rtl; }
.showcase-reverse > * { direction: ltr; }
.showcase-content h2 {
    font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; letter-spacing: -0.02em;
    line-height: 1.1; margin-bottom: 1.2rem;
}
.showcase-content p { color: var(--text2); font-size: 1.05rem; line-height: 1.6; margin-bottom: 1.5rem; }
.showcase-visual {
    background: var(--bg3); border-radius: var(--radius); aspect-ratio: 4/3;
    display: flex; align-items: center; justify-content: center; font-size: 4rem;
    border: 1px solid var(--border); position: relative; overflow: hidden;
}
.showcase-visual::after {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse at center, rgba(41,151,255,0.05), transparent 70%);
}

/* === PORTFOLIO GRID === */
.portfolio-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 1.2rem;
}
.portfolio-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    overflow: hidden; transition: all 0.4s; cursor: pointer;
}
.portfolio-card:hover { border-color: rgba(41,151,255,0.3); transform: translateY(-6px); }
.portfolio-thumb {
    aspect-ratio: 16/10; background: var(--bg3); display: flex; align-items: center;
    justify-content: center; font-size: 2.5rem; position: relative; overflow: hidden;
}
.portfolio-thumb::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.8));
}
.portfolio-info { padding: 1.5rem 2rem; }
.portfolio-info h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 0.4rem; }
.portfolio-info p { color: var(--text2); font-size: 0.9rem; }
.portfolio-tag {
    display: inline-block; padding: 0.2rem 0.7rem; border-radius: 980px; font-size: 0.75rem;
    font-weight: 500; background: rgba(41,151,255,0.1); color: var(--accent); margin-top: 0.6rem;
}

/* === PRICING / STEPS === */
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; counter-reset: step; }
.step-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 2.5rem 2rem; position: relative; counter-increment: step;
}
.step-card::before {
    content: counter(step); position: absolute; top: 2rem; right: 2rem;
    font-size: 3rem; font-weight: 800; color: rgba(41,151,255,0.1); line-height: 1;
}
.step-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.6rem; color: var(--accent); }
.step-card p { color: var(--text2); font-size: 0.9rem; line-height: 1.6; }

/* === PRICING CARDS === */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.pricing-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 3rem 2.5rem; text-align: center; transition: all 0.3s; position: relative;
}
.pricing-card.featured { border-color: var(--accent); }
.pricing-card.featured::before {
    content: 'Populaire'; position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    background: var(--gradient); color: #fff; padding: 0.3rem 1.2rem; border-radius: 980px;
    font-size: 0.75rem; font-weight: 600;
}
.pricing-card:hover { transform: translateY(-4px); }
.pricing-card h3 { font-size: 1.3rem; font-weight: 600; margin-bottom: 0.5rem; }
.pricing-card .price { font-size: 2.5rem; font-weight: 700; margin: 1rem 0; }
.pricing-card .price span { font-size: 1rem; color: var(--text2); font-weight: 400; }
.pricing-card ul { list-style: none; text-align: left; margin: 1.5rem 0; }
.pricing-card li { padding: 0.5rem 0; color: var(--text2); font-size: 0.9rem; border-bottom: 1px solid var(--border); }
.pricing-card li::before { content: '✓ '; color: var(--green); font-weight: 700; }

/* === STATS BAR === */
.stats-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; padding: 3rem 0; text-align: center; }
.stat-item .stat-num {
    font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 700;
    background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-item .stat-label { color: var(--text2); font-size: 0.9rem; margin-top: 0.3rem; }

/* === CONTACT === */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.contact-form { display: flex; flex-direction: column; gap: 1.2rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; color: var(--text2); margin-bottom: 0.4rem; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 0.9rem 1.2rem; background: var(--bg3); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text); font-family: var(--font); font-size: 0.95rem;
    transition: border-color 0.3s;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); }
.form-group textarea { min-height: 140px; resize: vertical; }
.contact-info { display: flex; flex-direction: column; gap: 2rem; }
.contact-info-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 2rem; display: flex; gap: 1.2rem; align-items: flex-start;
}
.contact-info-icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-info-card h4 { font-size: 1rem; font-weight: 600; margin-bottom: 0.3rem; }
.contact-info-card p { color: var(--text2); font-size: 0.9rem; }
.contact-info-card a { color: var(--accent); text-decoration: none; }

/* === FOOTER === */
.footer {
    background: var(--bg2); border-top: 1px solid var(--border); padding: 3rem 0 2rem;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 2rem; }
.footer-brand { font-size: 0.9rem; color: var(--text2); line-height: 1.6; }
.footer-brand .logo { font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 0.8rem; }
.footer-brand .logo span { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.footer-col h4 { font-size: 0.8rem; font-weight: 600; color: var(--text3); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 1rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a { color: var(--text2); text-decoration: none; font-size: 0.85rem; transition: color 0.3s; }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
    border-top: 1px solid var(--border); padding-top: 1.5rem; display: flex;
    justify-content: space-between; align-items: center; font-size: 0.8rem; color: var(--text3);
}
.footer-bottom a { color: var(--text3); text-decoration: none; }
.footer-bottom a:hover { color: var(--text2); }

/* === ANIMATIONS === */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.animate.visible { opacity: 1; transform: translateY(0); }

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: block; }
    .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 52px; left: 0; right: 0; background: rgba(0,0,0,0.95); padding: 1.5rem 2rem; gap: 1.2rem; border-bottom: 1px solid var(--border); }
    .features-grid, .portfolio-grid, .pricing-grid { grid-template-columns: 1fr; }
    .showcase { grid-template-columns: 1fr; gap: 2rem; }
    .showcase-reverse { direction: ltr; }
    .contact-grid { grid-template-columns: 1fr; }
    .stats-bar { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
    .hero h1 { font-size: 2.8rem; }
    .steps-grid { grid-template-columns: 1fr; }
}