/**
 * demos.sharpee.net stylesheet
 * Matches the main site's design language: dark default, champagne gold accent.
 */

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

:root {
  --bg: #0d1117;
  --bg-sidebar: #161b22;
  --bg-card: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #f2d280;
  --accent-hover: #f5dda0;
  --heading: #f0e6d3;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --max-width: 960px;
}

[data-theme="light"] {
  --bg: #faf9f7;
  --bg-sidebar: #f0eeeb;
  --bg-card: #f0eeeb;
  --border: #d4d0cc;
  --text: #2a2520;
  --text-muted: #555;
  --accent: #3b82c4;
  --accent-hover: #2d6da3;
  --heading: #1a1a1a;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Layout ── */
.page {
  max-width: var(--max-width);
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Header ── */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2.5rem;
  border-bottom: 1px solid var(--border);
}

.site-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.site-title span {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.85rem;
  margin-left: 0.5rem;
}

.header-links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.header-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.header-links a:hover {
  color: var(--accent);
}

.theme-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 0.3rem 0.65rem;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: color 0.15s, border-color 0.15s;
}

.theme-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ── Content ── */
.content {
  padding: 3rem 2.5rem;
  flex: 1;
}

.content h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--heading);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.content .subtitle {
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}

.content code {
  font-family: "SF Mono", "Cascadia Code", "Fira Code", Menlo, Consolas, monospace;
  font-size: 0.85em;
  background: var(--bg-sidebar);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* ── Demo Cards ── */
.demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.demo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.15s, transform 0.15s;
  display: flex;
  flex-direction: column;
}

.demo-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.demo-card-image {
  width: 100%;
  height: 160px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.demo-card-image pre {
  font-family: "SF Mono", "Cascadia Code", "Fira Code", Menlo, Consolas, monospace;
  font-size: 0.65rem;
  line-height: 1.3;
  color: var(--accent);
  opacity: 0.6;
  text-align: left;
  padding: 0.75rem;
  white-space: pre;
}

.demo-card-body {
  padding: 1rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.demo-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 0.25rem;
}

.demo-card-author {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.demo-card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 0.75rem;
  flex: 1;
}

.demo-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.play-btn {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 5px;
  transition: background 0.15s;
}

.play-btn:hover {
  background: var(--accent-hover);
  color: var(--bg);
}

.demo-tag {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  align-self: flex-end;
}

.demo-tag.wip {
  border-color: var(--accent);
  color: var(--accent);
  opacity: 0.7;
}

/* ── Info Section ── */
.info-section {
  margin-top: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.info-section h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 0.75rem;
}

.info-section p {
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.info-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1rem;
}

.info-columns h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 0.5rem;
}

.info-columns ul {
  list-style: none;
  padding: 0;
}

.info-columns li {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 0.25rem 0;
}

.info-columns li::before {
  content: ">";
  color: var(--accent);
  margin-right: 0.5rem;
  font-family: "SF Mono", Menlo, monospace;
  font-size: 0.8rem;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 2.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
}

/* ── Responsive ── */
@media (max-width: 700px) {
  .site-header {
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.25rem;
  }

  .content {
    padding: 2rem 1.25rem;
  }

  .demo-grid {
    grid-template-columns: 1fr;
  }

  .info-columns {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .footer {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
    padding: 1.25rem;
  }
}