:root {
  --paper: #f1eee6;
  --surface: #f7f5ef;
  --ink: #141414;
  --muted: #6e6a61;
  --line: #d9d4c7;
  --hl: #e5482d;
  --display: "Instrument Serif", "Songti SC", "Noto Serif SC", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0f0f0e; --surface: #171715; --ink: #ecE8de; --muted: #8b877d; --line: #2a2926; --hl: #ff6a4d;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0f0f0e; --surface: #171715; --ink: #ece8de; --muted: #8b877d; --line: #2a2926; --hl: #ff6a4d;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--hl); color: #fff; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px 48px; }
@media (max-width: 600px) { .wrap { padding: 0 16px 40px; } }

.mono { font-family: var(--mono); font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase; }
.display { font-family: var(--display); font-weight: 400; }

/* ---- top bar ---- */
.bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 0; border-bottom: 1px solid var(--line);
}
.mark { display: inline-flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; font-family: var(--mono); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--hl); }
.bar-right { display: flex; gap: 20px; align-items: center; color: var(--muted); }
.link-btn { background: none; border: 0; padding: 0; color: var(--ink); cursor: pointer; border-bottom: 1px solid currentColor; }

/* ---- hero ---- */
.hero { padding: clamp(56px, 11vw, 140px) 0 clamp(40px, 6vw, 72px); }
.hero h1 {
  font-family: var(--display); font-weight: 400;
  font-size: clamp(64px, 15vw, 196px); line-height: .86; letter-spacing: -.035em; margin: 0;
}
.hero h1 em { font-style: italic; color: var(--hl); }
.tagline { max-width: 34em; margin: 28px 0 0; color: var(--muted); font-size: 16px; }

/* ---- controls ---- */
.controls {
  display: flex; flex-wrap: wrap; gap: 16px 32px; align-items: center; justify-content: space-between;
  padding: 14px 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 2; background: var(--paper);
}
.tags { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.tag {
  background: none; border: 0; padding: 4px 0; cursor: pointer; color: var(--muted);
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase;
}
.tag sup { font-size: 9px; margin-left: 2px; }
.tag:hover { color: var(--ink); }
.tag[aria-pressed="true"] { color: var(--ink); box-shadow: inset 0 -1px 0 var(--ink); }
.search { position: relative; display: flex; align-items: center; min-width: 200px; flex: 0 1 260px; }
.search input {
  width: 100%; background: none; border: 0; border-bottom: 1px solid var(--line); outline: none;
  padding: 6px 28px 6px 0; color: var(--ink); font: 13px var(--mono); letter-spacing: .02em;
}
.search input::placeholder { color: var(--muted); text-transform: uppercase; letter-spacing: .06em; font-size: 11.5px; }
.search input:focus { border-bottom-color: var(--ink); }
.search kbd { position: absolute; right: 0; color: var(--muted); border: 1px solid var(--line); border-radius: 3px; padding: 0 5px; font-size: 10px; }
@media (max-width: 600px) { .search { flex-basis: 100%; } }

/* ---- grid ---- */
.grid {
  list-style: none; margin: 0; padding: 40px 0 0;
  display: grid; gap: 48px 28px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
}
.card { display: block; color: inherit; text-decoration: none; outline: none; }
.cover {
  position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--surface);
  border: 1px solid var(--line);
}
.cover svg, .cover img { position: absolute; inset: 0; width: 100%; height: 100%; display: block; object-fit: cover; transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.card:hover .cover svg, .card:hover .cover img,
.card:focus-visible .cover svg, .card:focus-visible .cover img { transform: scale(1.04); }
.card:focus-visible .cover { outline: 2px solid var(--hl); outline-offset: 3px; }
.badge {
  position: absolute; top: 12px; left: 12px; background: var(--paper); color: var(--ink);
  padding: 3px 8px; font: 10.5px var(--mono); letter-spacing: .08em; text-transform: uppercase;
}

.info { display: grid; grid-template-columns: auto 1fr auto; gap: 4px 16px; padding-top: 16px; align-items: baseline; }
.num { font: 11.5px var(--mono); color: var(--muted); letter-spacing: .04em; }
.title { margin: 0; font-family: var(--display); font-weight: 400; font-size: 30px; line-height: 1.05; letter-spacing: -.01em; }
.arrow { font-family: var(--mono); font-size: 16px; transition: transform .3s ease, color .3s ease; }
.card:hover .arrow, .card:focus-visible .arrow { transform: translate(3px, -3px); color: var(--hl); }
.desc { grid-column: 2 / 4; margin: 6px 0 0; color: var(--muted); }
.meta {
  grid-column: 2 / 4; display: flex; flex-wrap: wrap; gap: 4px 14px; margin-top: 10px; padding-top: 10px;
  border-top: 1px solid var(--line); color: var(--muted); font: 10.5px var(--mono); letter-spacing: .06em; text-transform: uppercase;
}
.meta .host { margin-right: auto; text-transform: none; letter-spacing: .02em; }

.empty { text-align: center; color: var(--muted); padding: 96px 0; }
.empty .display { font-size: 48px; color: var(--ink); }

/* ---- footer ---- */
.foot {
  display: flex; justify-content: space-between; margin-top: 120px; padding-top: 18px;
  border-top: 1px solid var(--ink); color: var(--muted);
}

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* entrance */
.grid > li { animation: rise .7s cubic-bezier(.2,.7,.2,1) both; animation-delay: calc(var(--i, 0) * 60ms); }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }
@media (prefers-reduced-motion: reduce) {
  .grid > li { animation: none; }
  .cover svg, .cover img, .arrow { transition: none; }
}