@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --bg: #0b1221;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-strong: rgba(255, 255, 255, 0.08);
  --accent: #6b8bff;
  --accent-2: #42f5d7;
  --text: #e8edf7;
  --muted: #b7c2d9;
  --border: rgba(255, 255, 255, 0.15);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

html {
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Space Grotesk', 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 20%, rgba(66, 245, 215, 0.12), transparent 30%),
    radial-gradient(circle at 80% 0%, rgba(107, 139, 255, 0.12), transparent 28%),
    linear-gradient(160deg, #0a0f1f 0%, #0f1b33 50%, #0b1221 100%);
}

a { color: inherit; }

a:hover { color: inherit; }

a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 56px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.4px;
  color: var(--text);
}

.brand-badge {
  background: var(--panel-strong);
  color: var(--text);
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 0.4px;
  border: 1px solid var(--border);
}

.hero {
  margin-top: 24px;
  background: var(--panel);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  animation: float-in 0.7s ease-out;
}

.hero::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(107, 139, 255, 0.25), transparent 70%);
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
}

.hero p {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 62ch;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.98rem;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn.primary {
  background: linear-gradient(120deg, var(--accent), #4e7bff);
  color: #0b1020;
  box-shadow: 0 12px 25px rgba(107, 139, 255, 0.35);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(107, 139, 255, 0.4);
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

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

.theme-toggle {
  padding: 10px 16px;
  font-size: 0.95rem;
}

.features {
  margin-top: 28px;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.feature-card {
  background: var(--panel-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow);
  animation: rise 0.6s ease-out;
}

.feature-card:nth-child(2) { animation-delay: 0.05s; }
.feature-card:nth-child(3) { animation-delay: 0.1s; }
.feature-card:nth-child(4) { animation-delay: 0.15s; }
.feature-card:nth-child(5) { animation-delay: 0.2s; }

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
}

.quick-links {
  margin-top: 28px;
  background: var(--panel);
  border-radius: var(--radius-md);
  padding: 22px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.quick-links h2 { margin-top: 0; }

.quick-links .link-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.link-tile {
  display: block;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--panel-strong);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--border);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
}

.link-tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  background: rgba(255, 255, 255, 0.12);
}

.footer {
  margin-top: 32px;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
}

html[data-theme="light"] {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --panel-strong: #f1f4fb;
  --accent: #2d6cdf;
  --accent-2: #2ec4b6;
  --text: #1b2330;
  --muted: #4a5568;
  --border: rgba(27, 35, 48, 0.12);
  --shadow: 0 18px 40px rgba(17, 38, 70, 0.12);
}

html[data-theme="light"] body {
  background: linear-gradient(180deg, #ffffff 0%, #eef5ff 100%);
}

@keyframes float-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 720px) {
  .hero { padding: 28px; }
  .cta { flex-direction: column; align-items: stretch; }
}