:root {
  --bg: #fbf8f3;
  --fg: #2c2826;
  --muted: #6b635d;
  --accent: #e69015;
  --accent-fg: #2c2826;
  --line: #e9e1d6;
  --link: #a5600a;
  --award-bg: #fdf0c8;
  --award-fg: #7a4d00;
  --award-line: #ecc764;
  color-scheme: light;
}
/* dark theme: follows the system unless the visitor picks one (assets/theme.js sets data-theme) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1d1a18;
    --fg: #ece6df;
    --muted: #a69c93;
    --line: #3a3430;
    --link: #f0a83c;
    --award-bg: #3d2f12;
    --award-fg: #f6c85f;
    --award-line: #6b5420;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #1d1a18;
  --fg: #ece6df;
  --muted: #a69c93;
  --line: #3a3430;
  --link: #f0a83c;
  --award-bg: #3d2f12;
  --award-fg: #f6c85f;
  --award-line: #6b5420;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 0 20px 64px; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

header { text-align: center; padding: 64px 0 40px; border-bottom: 1px solid var(--line); }
header img { width: 120px; height: 120px; border-radius: 22px; }
header h1 { margin: 20px 0 4px; font-size: 40px; letter-spacing: -0.5px; }
.tagline { margin: 0; color: var(--muted); font-size: 18px; }
.intro { max-width: 620px; margin: 20px auto 28px; }
.buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.button {
  display: inline-block; padding: 10px 22px; border-radius: 999px;
  font-weight: 600; border: 2px solid var(--accent);
}
.button:hover { text-decoration: none; }
.button.primary { background: var(--accent); color: var(--accent-fg); }
.button.primary:hover { filter: brightness(1.08); }
.button.secondary { color: var(--fg); }
.button.secondary:hover { background: var(--line); }
.hint { margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.used {
  display: inline-block; margin: 24px 0 0; padding: 8px 16px; border-radius: 8px;
  background: var(--line); font-size: 14px;
}

h2 { margin: 40px 0 8px; font-size: 24px; }
ul.pubs { list-style: none; margin: 0; padding: 0; }
.pubs li { padding: 16px 0; border-bottom: 1px solid var(--line); }
.pubs li:last-child { border-bottom: none; }
.pubs .title { font-weight: 600; color: var(--fg); }
.pubs .title:hover { color: var(--link); }
.pubs .authors { color: var(--muted); font-size: 15px; }
.pubs .meta { font-size: 15px; display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: center; margin-top: 2px; }
.venue {
  font-size: 13px; font-weight: 700; padding: 1px 8px; border-radius: 4px;
  background: var(--fg); color: var(--bg);
}
.award {
  font-size: 13px; font-weight: 700; padding: 1px 8px; border-radius: 4px;
  background: var(--award-bg); color: var(--award-fg); border: 1px solid var(--award-line);
}

footer { margin-top: 48px; color: var(--muted); font-size: 14px; text-align: center; }
.theme-toggle {
  position: fixed; top: 16px; right: 16px;
  width: 40px; height: 40px; border-radius: 999px; padding: 0;
  display: grid; place-items: center; cursor: pointer;
  background: var(--bg); color: var(--fg); border: 1px solid var(--line);
}
.theme-toggle:hover { background: var(--line); }
.theme-toggle svg { width: 20px; height: 20px; }