:root {
  --bg: #0b0f19;
  --panel: #0f1629;
  --text: #e7eaf1;
  --muted: #a9b1c3;
  --border: rgba(255, 255, 255, 0.12);
  --accent: #8ab4ff;
  --accent-2: #a8ffdc;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  --radius: 14px;
  --max: 980px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  position: relative;
  z-index: 0;
  background: transparent;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(
      1200px 800px at 20% -10%,
      rgba(138, 180, 255, 0.25),
      transparent 55%
    ),
    radial-gradient(
      900px 700px at 100% 0%,
      rgba(168, 255, 220, 0.18),
      transparent 50%
    ),
    var(--bg);
}

html {
  background: var(--bg);
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
}

pre {
  padding: 14px;
  overflow: auto;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 12px;
}

.demo-video {
  width: 100%;
  max-width: 360px;
  max-height: min(70vh, 520px);
  height: auto;
  display: block;
  margin: 14px auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #000;
  box-shadow: var(--shadow);
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
}
.skip-link:focus {
  left: 10px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: transparent;
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(11, 15, 25, 0.85);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  pointer-events: none;
}

.site-header > * {
  position: relative;
}

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

.brand {
  font-weight: 650;
  letter-spacing: 0.2px;
  color: var(--text);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.nav a {
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 10px;
}
.nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  text-decoration: none;
}

.hero {
  margin-top: 14px;
  border: 1px solid var(--border);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.06),
    rgba(255, 255, 255, 0.02)
  );
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

.hero h1 {
  margin: 0 0 6px 0;
  font-size: clamp(30px, 5vw, 46px);
  letter-spacing: -0.5px;
}

.hero p {
  margin: 10px 0;
  color: var(--muted);
  max-width: 70ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  text-decoration: none;
}
.button:hover {
  text-decoration: none;
  border-color: rgba(138, 180, 255, 0.4);
  background: rgba(138, 180, 255, 0.12);
}
.button.primary {
  border-color: rgba(168, 255, 220, 0.35);
  background: rgba(168, 255, 220, 0.12);
}
.button.primary:hover {
  border-color: rgba(168, 255, 220, 0.55);
}

.grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.card {
  grid-column: span 12;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius);
  padding: 18px;
}

@media (min-width: 860px) {
  .card.half {
    grid-column: span 6;
  }
}

.card h2,
.card h3 {
  margin: 0 0 8px 0;
}

.muted {
  color: var(--muted);
}

.list {
  margin: 10px 0 0 0;
  padding-left: 18px;
}
.list li {
  margin: 6px 0;
}

.post-title {
  margin: 0 0 6px 0;
}

.post-meta {
  margin: 0 0 10px 0;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.post-desc {
  margin: 0 0 14px 0;
  color: var(--muted);
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}

.site-footer {
  margin-top: 26px;
  border-top: 1px solid var(--border);
  color: var(--muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-links {
  display: inline-flex;
  gap: 12px;
}
.footer-links a {
  color: var(--muted);
}
.footer-links a:hover {
  color: var(--text);
  text-decoration: none;
}