:root {
  --paper: #fdfcf9;
  --panel: #ffffff;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #f97316;
  --accent-strong: #ea580c;
  --accent-soft: #fff7ed;
  --grid-line: rgba(31, 41, 55, 0.045);
  --code-bg: #f3f4f6;
  --radius: 14px;
  --serif: ui-serif, "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  --mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
}
body {
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 26px 26px;
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

#hero {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #17181c 0%, #1e2027 100%);
  color: #fff;
}
.hero-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  flex-wrap: wrap;
}
.hero-text {
  max-width: 500px;
}
#hero h1 {
  font-family: var(--serif);
  font-size: 26px;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
}
.tagline {
  color: #c3c4cb;
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
}
.tagline em {
  color: #fff;
  font-style: normal;
  font-weight: 600;
}
.count {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #fdba74;
  font-weight: 400;
}
.term {
  flex: 1;
  min-width: 330px;
  max-width: 540px;
  background: #0f1013;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: #1e2027;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.term-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #3a3b45;
}
.term-bar em {
  margin-left: auto;
  font-style: normal;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fdba74;
}
.term pre {
  margin: 0;
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: #e7e7ea;
  overflow-x: auto;
}
.term .c {
  color: #7a7d87;
}
.term .p {
  color: #fdba74;
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 34px 32px 60px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 22px;
}
.loading,
.empty {
  color: var(--muted);
  padding: 40px 0;
  font-size: 15px;
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.14s, box-shadow 0.14s, transform 0.14s;
}
.card:hover {
  border-color: #cfcbe0;
  box-shadow: 0 12px 34px rgba(30, 20, 80, 0.1);
  transform: translateY(-2px);
}
.preview {
  height: 208px;
  overflow: hidden;
  background: #17181c;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.preview iframe {
  width: 1180px;
  height: 720px;
  border: 0;
  transform: scale(0.322);
  transform-origin: top left;
  pointer-events: none;
}
.preview .ph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6b6d78;
  font-family: var(--mono);
  font-size: 13px;
}
.card-body {
  padding: 15px 17px 17px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  flex: 1;
}
.card-title {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.card-owner {
  font-size: 13px;
  color: var(--accent-strong);
  font-weight: 600;
}
.card-meta {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding-top: 8px;
}
.chip {
  font-family: var(--mono);
  font-size: 11.5px;
  background: var(--code-bg);
  color: var(--muted);
  border-radius: 999px;
  padding: 3px 10px;
}
.chip.exp {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

#foot {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 0 32px 48px;
}
#foot code {
  font-family: var(--mono);
  background: var(--code-bg);
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 12px;
}

@media (max-width: 640px) {
  #hero h1 {
    font-size: 30px;
  }
  .hero-inner {
    padding: 34px 20px 30px;
  }
  main {
    padding: 24px 18px 40px;
  }
}