:root {
  color-scheme: dark;
  --bg: #0b0d10;
  --panel: #12161b;
  --line: #252c34;
  --text: #f1f4f6;
  --muted: #9da8b3;
  --accent: #b8d89a;
  --accent-ink: #14200e;
  --danger: #ff9b9b;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: radial-gradient(circle at 20% -10%, #1e2a21 0, transparent 38rem), var(--bg);
  color: var(--text);
  font: 16px/1.55 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
button, input { font: inherit; }
.shell { width: min(72rem, calc(100% - 2rem)); margin: 0 auto; padding: 1.25rem 0 4rem; }
.masthead { display: flex; justify-content: space-between; align-items: center; min-height: 4.5rem; }
.eyebrow, .kicker { color: var(--accent); font-size: .72rem; font-weight: 750; letter-spacing: .16em; text-transform: uppercase; }
h1 { margin: -.1rem 0 0; font-size: 1.3rem; }
h2 { margin: .45rem 0 .65rem; font-size: clamp(1.65rem, 5vw, 2.7rem); line-height: 1.08; letter-spacing: -.025em; }
.welcome { max-width: 42rem; padding: clamp(3.5rem, 12vh, 8rem) 0; }
.welcome > p:not(.kicker):not(.error) { color: var(--muted); max-width: 36rem; font-size: 1.05rem; }
button { border: 0; border-radius: .55rem; cursor: pointer; }
.primary { margin-top: 1.2rem; padding: .78rem 1.1rem; background: var(--accent); color: var(--accent-ink); font-weight: 750; }
.secondary { padding: .55rem .8rem; border: 1px solid var(--line); background: rgba(18,22,27,.8); color: var(--text); }
.error { color: var(--danger); min-height: 1.5rem; }
.loading { display: grid; justify-items: center; gap: .7rem; padding: 18vh 0; color: var(--muted); }
.spinner { width: 1.8rem; height: 1.8rem; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.library-head { display: flex; gap: 2rem; justify-content: space-between; align-items: end; padding: 3.5rem 0 1.5rem; border-bottom: 1px solid var(--line); }
.library-head h2 { font-size: clamp(1.7rem, 4vw, 2.4rem); }
.muted { color: var(--muted); margin: 0; }
.search { display: grid; gap: .4rem; min-width: min(22rem, 100%); color: var(--muted); font-size: .78rem; }
.search input { width: 100%; padding: .72rem .8rem; border: 1px solid var(--line); border-radius: .55rem; background: var(--panel); color: var(--text); outline: none; }
.search input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(184,216,154,.12); }
.collection { padding: 2rem 0 .4rem; }
.collection h3 { margin: 0 0 .7rem; font-size: .82rem; color: var(--muted); letter-spacing: .12em; text-transform: uppercase; }
.docs { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(19rem, 100%), 1fr)); gap: .7rem; }
.doc { display: block; min-width: 0; padding: .9rem 1rem; border: 1px solid var(--line); border-radius: .65rem; background: rgba(18,22,27,.72); color: var(--text); text-decoration: none; }
.doc:hover { border-color: #46513f; background: #161c18; }
.doc-title { display: block; font-weight: 680; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.doc-path { display: block; margin-top: .28rem; color: var(--muted); font: .72rem/1.35 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.empty { color: var(--muted); padding: 3rem 0; }
@media (max-width: 680px) {
  .shell { width: min(100% - 1.25rem, 72rem); }
  .library-head { display: grid; gap: 1.25rem; padding-top: 2rem; }
  .search { min-width: 0; }
  .docs { grid-template-columns: 1fr; }
}