:root {
  --bg: #0b1120;
  --bg-alt: #0f172a;
  --surface: #16213a;
  --text: #e6edf6;
  --muted: #9aa7bd;
  --accent: #5b8cff;
  --accent-2: #7c5cff;
  --border: rgba(255, 255, 255, 0.08);
  --max-width: 1080px;
  --radius: 14px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 17, 32, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
}

.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.nav-cta {
  padding: 8px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff !important;
}

/* Hero */
.hero {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(circle, rgba(91, 140, 255, 0.18), transparent 60%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  text-align: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.lede {
  max-width: 600px;
  margin: 0 auto 36px;
  font-size: 1.15rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: transform 0.15s ease, opacity 0.2s ease, background 0.2s ease;
}

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

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

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

.btn-ghost:hover {
  background: var(--surface);
}

/* Sections */
.section {
  padding: 88px 0;
}

.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 32px;
  text-align: center;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 820px;
  margin: 0 auto;
}

.about-grid p {
  font-size: 1.08rem;
  color: var(--muted);
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(91, 140, 255, 0.4);
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(91, 140, 255, 0.2), rgba(124, 92, 255, 0.2));
  color: var(--accent);
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.card p {
  color: var(--muted);
  font-size: 0.98rem;
}

/* Contact */
.contact-inner {
  text-align: center;
}

.contact-lede {
  max-width: 520px;
  margin: 0 auto 28px;
  font-size: 1.1rem;
  color: var(--muted);
}

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

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.copyright {
  color: var(--muted);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 720px) {
  .nav {
    gap: 16px;
  }
  .nav a:not(.nav-cta) {
    display: none;
  }
  .about-grid,
  .cards {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 80px 0 64px;
  }
}