/* ── Variables ─────────────────────────────────────── */
:root {
    --bg:       #080c14;
    --surface:  #0d1421;
    --card:     #111827;
    --border:   #1e2d40;
    --cyan:     #00b4d8;
    --purple:   #7c3aed;
    --blue:     #2563eb;
    --text:     #f1f5f9;
    --muted:    #94a3b8;
    --gradient: linear-gradient(135deg, #00b4d8, #7c3aed);
}

/* ── Reset ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

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

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Buttons ───────────────────────────────────────── */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-primary { background: var(--gradient); color: #fff; }
.btn-primary:hover { opacity: 0.85; transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.btn-lg { padding: 16px 36px; font-size: 1rem; }

/* ── Navbar ────────────────────────────────────────── */
#navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(8, 12, 20, 0.8);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transition: background 0.3s, box-shadow 0.3s;
}
#navbar.scrolled {
    background: rgba(8, 12, 20, 0.98);
    box-shadow: 0 2px 24px rgba(0, 0, 0, 0.5);
}
.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    font-size: 1.05rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}
.logo-alpha {
    font-size: 1.4rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-links a {
    color: var(--muted);
    font-size: 0.9rem;
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
    background: var(--gradient) !important;
    color: #fff !important;
    padding: 8px 20px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.88rem !important;
}
.nav-cta:hover { opacity: 0.85; }

/* ── Hero ──────────────────────────────────────────── */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    padding: 120px 24px 80px;
}
.hero-glow {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.1) 0%, transparent 70%);
    pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 760px; }
.hero-badge {
    display: inline-block;
    padding: 6px 18px;
    border-radius: 999px;
    border: 1px solid var(--cyan);
    color: var(--cyan);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 28px;
}
#hero h1 {
    font-size: clamp(2.4rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 22px;
}
.hero-sub {
    font-size: 1.1rem;
    color: var(--muted);
    max-width: 540px;
    margin: 0 auto 40px;
    line-height: 1.75;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ── Services ──────────────────────────────────────── */
#services {
    padding: 100px 0;
    background: var(--surface);
}
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; }
.section-header p { color: var(--muted); font-size: 1rem; max-width: 500px; margin: 0 auto; }

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 28px;
    transition: border-color 0.25s, transform 0.25s;
}
.card:hover { border-color: var(--cyan); transform: translateY(-5px); }

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 20px;
}
.card-icon.cyan   { background: rgba(0,180,216,0.12);  color: var(--cyan); }
.card-icon.purple { background: rgba(124,58,237,0.12); color: #a78bfa; }
.card-icon.blue   { background: rgba(37,99,235,0.12);  color: #60a5fa; }

.card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 12px; }
.card p  { color: var(--muted); font-size: 0.93rem; line-height: 1.7; margin-bottom: 20px; }

.card-list { display: flex; flex-direction: column; gap: 8px; }
.card-list li {
    color: var(--muted);
    font-size: 0.88rem;
    padding-left: 16px;
    position: relative;
}
.card-list li::before { content: '▸'; position: absolute; left: 0; color: var(--cyan); }

/* ── About ─────────────────────────────────────────── */
#about { padding: 100px 0; }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
}
.about-text h2 { font-size: 2rem; font-weight: 800; margin-bottom: 20px; }
.about-text p  { color: var(--muted); line-height: 1.8; margin-bottom: 16px; font-size: 0.97rem; }
.about-text .btn { margin-top: 8px; }

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.stat {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.stat-num   { font-size: 1.75rem; font-weight: 800; }
.stat-label { color: var(--muted); font-size: 0.83rem; }

/* ── Contact ───────────────────────────────────────── */
#contact {
    padding: 100px 0;
    background: var(--surface);
}
.contact-box {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 60px 48px;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
}
.contact-box h2 { font-size: 2rem; font-weight: 800; margin-bottom: 14px; }
.contact-box > p { color: var(--muted); font-size: 1rem; margin-bottom: 32px; }

.contact-details {
    display: flex;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 36px;
}
.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    font-size: 0.93rem;
    transition: color 0.2s;
}
.contact-item:hover { color: var(--cyan); }
.contact-item i { color: var(--cyan); }

/* ── Footer ────────────────────────────────────────── */
footer {
    border-top: 1px solid var(--border);
    padding: 28px 0;
}
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-copy { color: var(--muted); font-size: 0.83rem; }

/* ── Responsive ────────────────────────────────────── */
@media (max-width: 768px) {
    .about-grid { grid-template-columns: 1fr; gap: 48px; }
    .nav-links  { gap: 16px; }
    .contact-box { padding: 40px 24px; }
    .contact-details { flex-direction: column; align-items: center; gap: 16px; }
}