:root {
  color-scheme: dark;
  font-family:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", Inter, "Segoe UI",
    ui-sans-serif, sans-serif;

  --bg: #0f0f11;
  --surface: #19191b;
  --surface-raised: #202022;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.13);
  --text: #e3e4e6;
  --text-secondary: #c5c6c7;
  --text-muted: #7d7e7f;
  --accent: #606acc;
  --mono: ui-monospace, "SF Mono", "SFMono-Regular", Menlo, Consolas, monospace;
}

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

body {
  background:
    radial-gradient(90% 40% at 50% 0%, #16161a 0%, var(--bg) 100%),
    var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  width: min(100% - 48px, 1020px);
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 48px, 1020px);
  margin: 0 auto;
  padding: 22px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: #1c1c1f;
  border: 1px solid var(--border-strong);
  overflow: hidden;
}

.brand-badge img {
  width: 44px;
  height: 44px;
}

.github-link,
.site-footer a {
  color: var(--text-muted);
  font-size: 14px;
  text-decoration: none;
  transition: color 120ms ease;
}

.github-link:hover,
.site-footer a:hover {
  color: var(--text);
}

.hero {
  padding: 96px 0 56px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(40px, 6.5vw, 68px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  max-width: 640px;
  margin: 20px auto 0;
  color: var(--text-secondary);
  font-size: 19px;
  line-height: 1.55;
}

.install-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 34px;
}

.install-command {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 13px 18px;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 15.5px;
  color: var(--text);
}

.prompt-sign {
  color: var(--accent);
}

.copy-button {
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 13px 18px;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition:
    background-color 120ms ease,
    color 120ms ease;
}

.copy-button:hover {
  background: var(--surface-raised);
  color: var(--text);
}

.hero-note {
  margin-top: 16px;
  color: var(--text-muted);
  font-size: 13.5px;
}

.video-section {
  padding: 8px 0 24px;
}

.video-section video {
  display: block;
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border-strong);
  background: #000;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.5);
}

.ideas-section {
  padding: 72px 0 40px;
}

.ideas-section h2 {
  font-size: 30px;
  font-weight: 650;
  letter-spacing: -0.025em;
  text-align: center;
}

.ideas-sub {
  margin: 12px auto 30px;
  max-width: 520px;
  color: var(--text-muted);
  font-size: 16px;
  text-align: center;
  line-height: 1.5;
}

.topic-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 26px;
}

.topic-chip {
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 8px 16px;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition:
    background-color 120ms ease,
    border-color 120ms ease,
    color 120ms ease;
}

.topic-chip:hover {
  background: var(--surface-raised);
  color: var(--text);
}

.topic-chip-active {
  border-color: var(--accent);
  background: rgba(96, 106, 204, 0.16);
  color: #c3c8f5;
}

.idea-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
}

.idea-card {
  border: 1px solid transparent;
  border-radius: 16px;
  padding: 20px;
  background: var(--surface);
  transition:
    border-color 120ms ease,
    background-color 120ms ease;
}

.idea-card:hover {
  border-color: var(--border);
  background: var(--surface-raised);
}

.idea-card h3 {
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.idea-card p {
  margin: 8px 0 14px;
  color: var(--text-muted);
  font-size: 13.5px;
  line-height: 1.5;
}

.idea-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.idea-tags span {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 10px;
  background: var(--surface-raised);
  color: var(--text-muted);
  font-size: 11.5px;
  font-weight: 500;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 48px, 1020px);
  margin: 40px auto 0;
  padding: 26px 0 34px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13.5px;
}