@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap");

:root {
  --bg: #f7f6f2;
  --surface: #ffffff;
  --fg: #1b1f24;
  --muted: #5d6670;
  --faint: #8a939c;
  --line: #e5e2db;
  --accent: #0f766e;
  --accent-soft: rgba(15, 118, 110, .10);
  --glow: rgba(15, 118, 110, .07);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1220;
    --surface: #111a2b;
    --fg: #e2e8f0;
    --muted: #94a3b8;
    --faint: #64748b;
    --line: #1e293b;
    --accent: #5eead4;
    --accent-soft: rgba(94, 234, 212, .10);
    --glow: rgba(29, 78, 216, .15);
  }
}
:root[data-theme="dark"] {
  --bg: #0b1220;
  --surface: #111a2b;
  --fg: #e2e8f0;
  --muted: #94a3b8;
  --faint: #64748b;
  --line: #1e293b;
  --accent: #5eead4;
  --accent-soft: rgba(94, 234, 212, .10);
  --glow: rgba(29, 78, 216, .15);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--muted);
  font: 16px/1.7 "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background: radial-gradient(600px at var(--mx, 70%) var(--my, 20%), var(--glow), transparent 80%);
}
a { color: var(--fg); text-decoration: none; }
a:hover { color: var(--accent); }
strong, b { color: var(--fg); font-weight: 600; }
code { font-family: var(--mono); font-size: .86em; color: var(--fg); background: var(--accent-soft); padding: .1em .35em; border-radius: 4px; }
::selection { background: var(--accent-soft); color: var(--fg); }

.page { position: relative; z-index: 1; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (min-width: 1024px) {
  .page { display: flex; gap: 56px; padding: 0 48px; }
  .side { position: sticky; top: 0; height: 100vh; width: 44%; display: flex; flex-direction: column; justify-content: space-between; padding: 96px 0; }
  .content { width: 56%; padding: 96px 0; }
}
@media (max-width: 1023px) {
  .side { padding: 64px 0 24px; }
  .content { padding: 8px 0 48px; }
  .toc { display: none; }
}

/* left column */
.side h1 { margin: 0; font-size: clamp(2.4rem, 5vw, 3.1rem); line-height: 1.1; letter-spacing: -.03em; color: var(--fg); font-weight: 700; }
.side .role { margin: 12px 0 0; font-size: 1.15rem; font-weight: 500; color: var(--fg); }
.side .intro { margin: 14px 0 0; max-width: 340px; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 0; padding: 0; list-style: none; }
.badges li { font-size: .78rem; font-weight: 500; color: var(--accent); background: var(--accent-soft); border-radius: 999px; padding: 3px 12px; }
.toc { list-style: none; margin: 56px 0 0; padding: 0; }
.toc a { display: flex; align-items: center; gap: 14px; padding: 9px 0; font-size: .74rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--faint); }
.toc a::before { content: ""; width: 32px; height: 1px; background: var(--faint); transition: width .2s, background .2s; }
.toc a:hover, .toc a.active { color: var(--fg); }
.toc a:hover::before, .toc a.active::before { width: 64px; background: var(--fg); }
.social { display: flex; gap: 20px; margin: 32px 0 0; padding: 0; list-style: none; }
.social a { display: inline-flex; color: var(--muted); }
.social a:hover { color: var(--fg); }
.social svg { width: 22px; height: 22px; fill: currentColor; }

/* right column */
section { margin-bottom: 88px; scroll-margin-top: 48px; }
.label { display: none; }
@media (max-width: 1023px) {
  .label { display: block; position: sticky; top: 0; z-index: 5; margin: 0 -24px 18px; padding: 14px 24px; font-size: .74rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--fg); background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: blur(8px); }
}
section > p { margin: 0 0 16px; }

.roles { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin: 8px 0 30px; }
.role-card {
  position: relative; border-radius: 14px; padding: 18px 18px 16px; overflow: hidden;
  background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 14%, var(--surface)), var(--surface) 65%);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
}
.role-card .role-k { font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.role-card .role-t { margin: 6px 0 8px; font-size: 1.12rem; font-weight: 700; color: var(--fg); letter-spacing: -.01em; }
.role-card p { margin: 0 0 12px; font-size: .9rem; }
.role-card a { font-size: .84rem; font-weight: 600; color: var(--accent); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 6px 0 26px; }
.stat { border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; background: color-mix(in srgb, var(--surface) 60%, transparent); }
.stat .n { display: block; font-size: 1.35rem; font-weight: 700; color: var(--fg); line-height: 1.2; }
.stat .k { font-size: .8rem; }

.entry { position: relative; display: grid; grid-template-columns: 112px 1fr; gap: 16px; padding: 18px; margin: 0 -18px 6px; border-radius: 12px; transition: background .2s, box-shadow .2s; }
.entry:hover { background: color-mix(in srgb, var(--surface) 70%, transparent); box-shadow: inset 0 1px 0 var(--line); }
.entry .when { font-size: .72rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--faint); padding-top: 4px; }
.entry h3 { margin: 0 0 6px; font-size: 1rem; font-weight: 600; color: var(--fg); line-height: 1.4; }
.entry h3 .org { color: var(--muted); font-weight: 500; }
.entry p { margin: 0 0 10px; font-size: .94rem; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.tags li { font-size: .74rem; font-weight: 500; color: var(--accent); background: var(--accent-soft); border-radius: 999px; padding: 2px 10px; }
.refs { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 0 0 10px; font-family: var(--mono); font-size: .78rem; }
.refs a { color: var(--muted); border-bottom: 1px dotted var(--faint); }
.refs a:hover { color: var(--accent); border-color: var(--accent); }
.refs .s { font-family: "Inter", sans-serif; font-size: .68rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--faint); margin-left: 3px; }
.refs .s.ok { color: var(--accent); }
@media (max-width: 560px) { .entry { grid-template-columns: 1fr; gap: 4px; } .stats { grid-template-columns: 1fr 1fr 1fr; } }

.paper { padding: 14px 0; border-top: 1px solid var(--line); }
.paper:first-of-type { border-top: 0; }
.paper .t { color: var(--fg); font-weight: 600; line-height: 1.45; }
.paper .a { font-size: .88rem; margin-top: 2px; }
.paper .tldr { font-size: .93rem; margin-top: 6px; }
.venue { display: inline-block; font-size: .7rem; font-weight: 600; letter-spacing: .03em; color: var(--accent); background: var(--accent-soft); border-radius: 999px; padding: 1px 9px; margin-left: 6px; vertical-align: 2px; white-space: nowrap; }
.note-small { font-size: .85rem; color: var(--faint); margin: -4px 0 12px; }

footer { font-size: .84rem; color: var(--faint); max-width: 440px; }

/* article pages */
.article-page { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; padding: 72px 24px 64px; }
.article-page .back { font-size: .85rem; font-weight: 600; color: var(--accent); }
.article-page h1 { color: var(--fg); font-size: clamp(1.9rem, 5vw, 2.5rem); line-height: 1.15; letter-spacing: -.025em; margin: 18px 0 10px; }
.article-page .byline { font-size: .86rem; color: var(--faint); margin-bottom: 32px; }
.article-page h2 { color: var(--fg); font-size: 1.2rem; letter-spacing: -.01em; margin: 36px 0 10px; }
.article-page p { margin: 0 0 16px; }
.article-page pre { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; overflow-x: auto; font: .84rem/1.6 var(--mono); color: var(--fg); }
.article-page pre code { background: none; padding: 0; }
.article-page table { width: 100%; border-collapse: collapse; font-size: .9rem; margin: 6px 0 18px; display: block; overflow-x: auto; }
.article-page th, .article-page td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.article-page th { color: var(--fg); font-weight: 600; }
.article-page td { color: var(--muted); }
.article-page .fig { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 8px 0 18px; color: var(--fg); overflow-x: auto; }
.article-page .refs { margin-top: 28px; }

.venue-light { font-size: .74rem; font-weight: 500; color: var(--faint); margin-left: 8px; white-space: nowrap; }
.paper sup { font-size: .7em; color: var(--accent); margin-left: 1px; }

.more { display: inline-block; margin: 0 0 10px; font-size: .85rem; font-weight: 600; color: var(--accent); }
.more:hover { text-decoration: underline; text-underline-offset: 3px; }
.theme-toggle {
  position: fixed; top: 18px; right: 20px; z-index: 20;
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; padding: 0; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); color: var(--muted);
  background: color-mix(in srgb, var(--surface) 80%, transparent); backdrop-filter: blur(6px);
}
.theme-toggle:hover { color: var(--fg); border-color: var(--faint); }
.theme-toggle svg { width: 17px; height: 17px; fill: currentColor; }
@media (max-width: 1023px) { .theme-toggle { top: 12px; right: 12px; } }