:root {
  --bg: #f3f6fb;
  --surface: #ffffff;
  --surface-low: #eef3fb;
  --surface-card: #e7edf8;
  --text: #0f172a;
  --muted: #52607a;
  --primary: #3b74e9;
  --accent: #7c3aed;
  --accent-2: #06b6d4;
  --code-bg: #0b1326;
  --code-text: #dae2fd;
}

.theme-dark {
  --bg: #0b1326;
  --surface: #0b1326;
  --surface-low: #131b2e;
  --surface-card: #171f33;
  --text: #dae2fd;
  --muted: #b3bedc;
  --primary: #adc6ff;
  --accent: #a78bfa;
  --accent-2: #22d3ee;
  --code-bg: #060e20;
  --code-text: #dae2fd;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(80rem 50rem at 0% 0%, rgba(173, 198, 255, 0.08), transparent 42%),
    radial-gradient(70rem 40rem at 100% 100%, rgba(173, 198, 255, 0.05), transparent 45%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 980px;
  margin: 34px auto 52px;
  padding: 0 20px;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 2.5rem);
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 60ch;
}

.actions {
  display: flex;
  gap: 8px;
}

.btn {
  border: 0;
  background: var(--surface-card);
  color: var(--text);
  border-radius: 12px;
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 200ms ease-in-out;
}

.btn:hover {
  background: #222a3d;
  color: #dae2fd;
}

body:not(.theme-dark) .btn:hover {
  background: #0b0f18;
  color: #ffffff;
}

.btn-link {
  text-decoration: none;
}

.quick-links {
  display: flex;
  gap: 14px;
  margin: 6px 0 22px;
  padding: 0;
  background: transparent !important;
  border-radius: 0;
}

.quick-links a {
  color: var(--primary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
}

.quick-links a:hover {
  text-decoration: underline;
}

.demo-media {
  margin: 10px 0 0;
}

.demo-gif {
  width: 100%;
  max-width: 860px;
  border-radius: 12px;
  border: 1px solid rgba(127, 140, 170, 0.28);
  display: block;
  background: var(--surface);
}

section {
  margin-bottom: 10px;
  padding: 14px 14px 12px;
  border-radius: 14px;
  background: var(--surface-low);
}

section:nth-of-type(odd) {
  background: var(--surface-card);
}

h2 {
  margin: 0 0 12px;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  position: relative;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(127, 140, 170, 0.35);
}

h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 120px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent-2));
}

h3 {
  margin: 10px 0 6px;
  font-size: 0.95rem;
  color: var(--text);
}

p {
  margin: 0;
}

ul,
ol {
  margin: 8px 0 0;
  padding-left: 18px;
}

li {
  margin-bottom: 4px;
  color: var(--muted);
}

strong {
  color: var(--text);
}

code {
  background: rgba(127, 140, 170, 0.2);
  border-radius: 6px;
  padding: 1px 6px;
  font-size: 12px;
}

.code-wrap {
  position: relative;
  margin-top: 8px;
}

.code-block {
  margin: 0;
  border-radius: 12px;
  background: var(--code-bg);
  color: var(--code-text);
  font-size: 12px;
  line-height: 1.55;
  padding: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  white-space: pre-wrap;
}

.copy-btn {
  position: absolute;
  right: 10px;
  top: 10px;
  border: 0;
  background: var(--primary);
  color: #00285d;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  padding: 5px 8px;
  cursor: pointer;
}

.copy-btn:hover {
  filter: brightness(1.04);
}

footer {
  margin: 24px 0 10px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 720px) {
  .top {
    flex-direction: column;
  }

  .actions {
    width: 100%;
  }

  section {
    padding: 12px;
  }
}