:root {
  --bg: #0b0e14;
  --bg-alt: #10141d;
  --surface: #151a24;
  --border: #232a38;
  --text: #eef1f6;
  --text-dim: #9aa4b6;
  --accent: #5b8cff;
  --accent-2: #7a5bff;
  --radius: 12px;
  --max-width: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

a { color: inherit; text-decoration: none; }

h1, h2, h3 { font-weight: 650; letter-spacing: -0.02em; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
}

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

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  color: var(--text-dim);
  font-size: 0.95rem;
  transition: color 0.15s ease;
}

.nav a:hover { color: var(--text); }

.nav-cta { display: inline-block; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
}

.btn-primary:hover { transform: translateY(-1px); }

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover { border-color: var(--accent); }

/* Hero */
.hero {
  padding: 120px 0 100px;
  background:
    radial-gradient(60% 60% at 20% 0%, rgba(91, 140, 255, 0.16), transparent),
    radial-gradient(50% 50% at 90% 20%, rgba(122, 91, 255, 0.14), transparent);
}

.hero-inner { max-width: 720px; }

.eyebrow {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-sub {
  color: var(--text-dim);
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Services */
.services { padding: 100px 0; background: var(--bg-alt); }

.services h2, .about h2, .contact h2 { font-size: 2rem; margin-bottom: 12px; }

.section-sub {
  color: var(--text-dim);
  margin-bottom: 48px;
  max-width: 560px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

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

.card-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 16px;
}

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

.card p { color: var(--text-dim); margin-bottom: 16px; }

.card ul { list-style: none; }

.card li {
  color: var(--text-dim);
  font-size: 0.9rem;
  padding-left: 20px;
  position: relative;
  margin-bottom: 8px;
}

.card li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* About */
.about { padding: 100px 0; }

.about-inner { max-width: 720px; }

.about p { color: var(--text-dim); font-size: 1.05rem; }

/* Contact */
.contact {
  padding: 100px 0;
  background: var(--bg-alt);
  text-align: center;
}

.contact-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

@media (max-width: 720px) {
  .nav { display: none; }
  .hero { padding: 90px 0 70px; }
}