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

:root {
    --bg: #0a0a0f;
    --bg-card: #12121a;
    --bg-dark: #07070b;
    --text: #e4e4e8;
    --text-muted: #8b8b96;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --border: #1e1e2a;
    --radius: 8px;
    --max-width: 1100px;
}

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; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ── Buttons ── */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-align: center;
}
.btn-sm { padding: 8px 20px; font-size: 0.875rem; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; transform: translateY(-1px); }
.btn-outline { border: 1px solid var(--border); color: var(--text); background: transparent; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-full { width: 100%; }

/* ── Nav ── */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 16px 0;
    transition: background 0.3s, backdrop-filter 0.3s;
}
.nav.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { font-weight: 700; font-size: 1.2rem; color: var(--text); display: flex; align-items: center; gap: 8px; }
.logo:hover { color: var(--text); }
.logo-icon { color: var(--accent); font-size: 1rem; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { color: var(--text-muted); font-size: 0.9rem; }
.nav-links a:hover { color: var(--text); }

.mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.mobile-toggle span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; transition: 0.3s; }

/* ── Hero ── */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, transparent 60%);
}
.hero-content { max-width: 720px; }
.hero-tag {
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 16px;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 700; line-height: 1.15; margin-bottom: 20px; }
.hero-sub { font-size: 1.15rem; color: var(--text-muted); max-width: 560px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ── Sections ── */
.section { padding: 100px 0; }
.section-dark { background: var(--bg-dark); }
.section-title { font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
.section-sub { color: var(--text-muted); font-size: 1.05rem; margin-bottom: 48px; max-width: 560px; }

/* ── Services Grid ── */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card-icon { font-size: 1.8rem; margin-bottom: 16px; }
.card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; }
.card p { color: var(--text-muted); font-size: 0.93rem; line-height: 1.6; }

/* ── About ── */
.about-content { max-width: 680px; }
.about-content p { color: var(--text-muted); margin-bottom: 16px; font-size: 1.05rem; }
.about-stats { margin-top: 36px; display: flex; flex-direction: column; gap: 16px; }
.stat { display: flex; gap: 16px; align-items: baseline; }
.stat-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    font-weight: 600;
    min-width: 120px;
}
.stat-value { color: var(--text); font-size: 0.95rem; }

/* ── Contact ── */
.contact-wrapper { display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px; align-items: start; }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
.form-group input,
.form-group select,
.form-group textarea {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 14px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}
.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg-card); }

.form-status { font-size: 0.9rem; min-height: 24px; }
.form-status.success { color: #22c55e; }
.form-status.error { color: #ef4444; }

.contact-info { padding-top: 12px; }
.contact-info h3 { font-size: 1.1rem; margin-bottom: 16px; }
.contact-info p { color: var(--text-muted); margin-bottom: 8px; font-size: 0.95rem; }
.contact-info a { color: var(--accent); }
.contact-note {
    margin-top: 24px;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.contact-note p { font-size: 0.875rem; margin-bottom: 8px; }
.contact-note p:last-child { margin-bottom: 0; }

/* ── Footer ── */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
}
.footer-inner { display: flex; align-items: center; justify-content: space-between; }
.footer-brand { font-weight: 700; display: flex; align-items: center; gap: 8px; }
.footer p { color: var(--text-muted); font-size: 0.85rem; }

/* ── Responsive ── */
@media (max-width: 768px) {
    .nav-links { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: var(--bg); flex-direction: column; justify-content: center; align-items: center; gap: 24px; z-index: 99; }
    .nav-links.open { display: flex; }
    .nav-links a { font-size: 1.2rem; }
    .mobile-toggle { display: block; z-index: 101; }
    .form-row { grid-template-columns: 1fr; }
    .contact-wrapper { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { text-align: center; }
}