/* LLM Countdowns: one stylesheet for the index, lab and model pages. */

:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1a1a19;
  --muted: #5f5f5b;
  --faint: #8a8a85;
  --line: #e4e4e0;
  --accent: #2f5bd3;
  --accent-soft: #eaf0ff;
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0f10;
    --surface: #17171a;
    --text: #ececea;
    --muted: #a3a39e;
    --faint: #76766f;
    --line: #2a2a2e;
    --accent: #8cabff;
    --accent-soft: #1b2340;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 var(--font);
  font-variant-numeric: tabular-nums;
}

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

.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

/* Header and footer */
.site-header { border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 56px; }
.brand { color: var(--text); font-weight: 700; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.site-header nav { font-size: 14px; color: var(--muted); }

.site-footer { border-top: 1px solid var(--line); margin-top: 64px; padding: 24px 0 40px; font-size: 13px; color: var(--muted); }
.site-footer p { margin: 4px 0; }

main { padding: 40px 0 0; }

/* Type */
h1 { font-size: 34px; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 12px; }
h2 { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 48px 0 12px; }
.lede { font-size: 18px; color: var(--muted); margin: 0 0 8px; max-width: 60ch; }
.meta { font-size: 14px; color: var(--faint); margin: 0; }
.eyebrow { font-size: 14px; color: var(--muted); margin: 0 0 8px; display: flex; align-items: center; gap: 8px; }
.crumbs { font-size: 14px; color: var(--faint); margin: 0 0 28px; }
.crumbs a { color: var(--muted); }

.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; flex: none; background: var(--lab, var(--faint)); }

/* Featured "next up" block on the index */
.next {
  display: block;
  margin: 32px 0 8px;
  padding: 20px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: inherit;
}
.next:hover { text-decoration: none; border-color: var(--accent); }
.next-label { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.next-name { font-size: 26px; font-weight: 700; letter-spacing: -0.01em; margin: 6px 0 2px; }
.next-when { color: var(--muted); }
.next-when strong { color: var(--text); }

/* Lab links */
.labs { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.labs a {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 14px; color: var(--text);
  padding: 5px 12px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface);
}
.labs a:hover { text-decoration: none; border-color: var(--accent); }
.labs a[aria-current="page"] { border-color: var(--accent); background: var(--accent-soft); }

/* Release list, grouped by month */
.month { font-size: 13px; font-weight: 600; color: var(--muted); margin: 28px 0 4px; }
.releases { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.release {
  display: grid;
  grid-template-columns: 76px 1fr auto;
  grid-template-areas: "date main rel";
  align-items: baseline;
  gap: 2px 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.release-date { grid-area: date; font-weight: 600; }
.release-main { grid-area: main; }
.release-name { font-weight: 600; }
.release-name a { color: var(--text); }
.release-lab { font-size: 14px; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; margin-left: 10px; }
.release-rel { grid-area: rel; font-size: 14px; color: var(--muted); text-align: right; white-space: nowrap; }
.release.is-current .release-name a { color: var(--accent); }

/* Model page */
.aka { color: var(--faint); font-size: 14px; margin: -4px 0 0; }
.when {
  margin: 28px 0 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.when-label { font-size: 13px; color: var(--muted); margin: 0; }
.when-date { font-size: 30px; font-weight: 700; letter-spacing: -0.01em; margin: 2px 0; }
.when-count { font-size: 18px; font-weight: 600; color: var(--accent); margin: 0 0 6px; }
.when-count:empty { display: none; }
.when-sub { color: var(--muted); margin: 0; }

.facts { display: grid; grid-template-columns: 160px 1fr; gap: 10px 20px; margin: 0; }
.facts dt { color: var(--muted); font-size: 14px; padding-top: 1px; }
.facts dd { margin: 0; }

.reasons { margin: 0; padding-left: 20px; }
.reasons li { margin: 0 0 8px; }
.source { font-size: 14px; color: var(--muted); margin: 16px 0 0; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 28px 0 0; }
.btn {
  font: inherit; font-size: 14px; color: var(--text); cursor: pointer;
  padding: 8px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface);
}
.btn:hover { border-color: var(--accent); }
.btn:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.about p { color: var(--muted); max-width: 62ch; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 16px);
  background: var(--text); color: var(--bg); font-size: 14px;
  padding: 8px 14px; border-radius: 8px; opacity: 0; pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.toast.visible { opacity: 1; transform: translate(-50%, 0); }

button, select { user-select: none; }

@media (max-width: 600px) {
  main { padding-top: 28px; }
  h1 { font-size: 28px; }
  .lede { font-size: 17px; }
  .release { grid-template-columns: 60px auto 1fr; grid-template-areas: "date main main" ". rel rel"; column-gap: 12px; }
  .release-rel { text-align: left; }
  .facts { grid-template-columns: 1fr; gap: 2px; }
  .facts dd { margin-bottom: 10px; }
  .when-date { font-size: 26px; }
}