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

:root {
    --bg: #0a0f1a;
    --bg-alt: #111827;
    --surface: #1e293b;
    --border: #334155;
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.15);
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── Nav ──────────────────────────────────────────────── */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(10, 15, 26, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.5px;
}

.nav-brand span { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { color: var(--text-muted); font-size: 0.9rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }

/* ── Buttons ──────────────────────────────────────────── */
.btn {
    display: inline-block;
    padding: 12px 28px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
}
.btn:hover { background: var(--accent-hover); color: #fff; transform: translateY(-1px); }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: transparent; }

/* ── Hero ─────────────────────────────────────────────── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0a0f1a 0%, #1a1a2e 50%, #16213e 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%; right: -30%;
    width: 80vw; height: 80vw;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 80%, rgba(59,130,246,0.08) 0%, transparent 60%);
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 120px 0 80px;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
}

.hero-sub {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    color: var(--text-muted);
    margin-bottom: 36px;
    max-width: 500px;
}

/* ── Sections ─────────────────────────────────────────── */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 48px;
    letter-spacing: -0.5px;
}

/* ── Services ─────────────────────────────────────────── */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 36px 28px;
    transition: border-color 0.2s, transform 0.2s;
}

.service-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.service-icon {
    color: var(--accent);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ── About ────────────────────────────────────────────── */
.about-content p {
    max-width: 700px;
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.8;
}

/* ── Contact ──────────────────────────────────────────── */
.contact-content p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 32px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
    font-size: 1.1rem;
    font-weight: 500;
    transition: color 0.2s;
}

.contact-item:hover { color: var(--accent); }
.contact-item svg { color: var(--accent); flex-shrink: 0; }

/* ── Footer ───────────────────────────────────────────── */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer p { color: var(--text-muted); font-size: 0.85rem; }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 640px) {
    .nav-links a:not(.btn) { display: none; }
    .services-grid { grid-template-columns: 1fr; }
    .hero-content { padding: 100px 0 60px; }
}