/* tripleaxis.org - static site stylesheet (no framework) */
:root {
  --ink: #1f2933; --muted: #52606d; --rule: #d9e2ec; --bg: #ffffff; --panel: #f5f7fa;
  --link: #0b5aa8; --link-hover: #083f77; --accent: #c0392b; --nav-bg: #0f2a44; --nav-ink: #e6eef7; --nav-active: #1d4f80;
  --max: 1100px; --sidebar: 230px;
}
* { box-sizing: border-box; }
html { font-size: 16px; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; color: var(--ink); background: var(--bg); line-height: 1.5; }
a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }
.layout { display: flex; min-height: 100vh; }
.sidebar { width: var(--sidebar); flex: 0 0 var(--sidebar); background: var(--nav-bg); color: var(--nav-ink); padding: 1.25rem 1rem; }
.sidebar .brand { display: block; color: #fff; font-weight: 700; font-size: 1.25rem; letter-spacing: .02em; margin-bottom: .25rem; }
.sidebar .tagline { font-size: .8rem; color: #b7c7d9; margin: 0 0 1.25rem; }
.sidebar nav a { display: block; color: var(--nav-ink); padding: .4rem .6rem; border-radius: 4px; font-size: .95rem; }
.sidebar nav a:hover { background: var(--nav-active); text-decoration: none; }
.sidebar nav a.active { background: var(--nav-active); font-weight: 600; }
.sidebar nav .group { margin: 1rem 0 .25rem; font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: #8fa6bf; padding-left: .6rem; }
.sidebar .foot { margin-top: 2rem; font-size: .75rem; color: #8fa6bf; }
.sidebar .foot a { color: #b7c7d9; }
main { flex: 1 1 auto; min-width: 0; padding: 2rem 2.5rem 4rem; max-width: var(--max); }
main.wide { max-width: none; }
h1 { font-size: 2rem; margin: 0 0 .25rem; line-height: 1.2; }
h2 { font-size: 1.35rem; margin: 2rem 0 .5rem; padding-bottom: .25rem; border-bottom: 1px solid var(--rule); }
h3 { font-size: 1.05rem; margin: 1.25rem 0 .4rem; }
.lede { color: var(--muted); font-size: 1.05rem; margin: 0 0 1.5rem; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin: .75rem 0 1.5rem; }
.chips a { border: 1px solid var(--rule); background: var(--panel); padding: .3rem .7rem; border-radius: 999px; font-size: .9rem; }
.chips a:hover { border-color: var(--link); text-decoration: none; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; margin: 1rem 0; }
.card { border: 1px solid var(--rule); border-radius: 8px; padding: 1rem 1.1rem; background: #fff; }
.card h3 { margin: 0 0 .35rem; }
.card p { margin: .25rem 0; font-size: .93rem; }
.card .meta { color: var(--muted); font-size: .85rem; }
.notice { background: #fff7e6; border-left: 4px solid #e0a800; padding: .6rem .9rem; margin: 1rem 0; font-size: .93rem; }
.note { color: var(--muted); font-size: .88rem; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; margin: .75rem 0 1.5rem; }
th, td { border: 1px solid var(--rule); padding: .45rem .55rem; vertical-align: top; text-align: left; }
th { background: var(--panel); position: sticky; top: 0; }
tr:nth-child(even) td { background: #fafbfc; }
td.num, th.num { white-space: nowrap; }
.table-wrap { overflow-x: auto; }
sup.fn { color: var(--accent); font-weight: 600; }
.legend { font-size: .85rem; color: var(--muted); }
.legend li { margin: .1rem 0; }
.tag { display: inline-block; font-size: .72rem; padding: .05rem .45rem; border-radius: 4px; background: var(--panel); border: 1px solid var(--rule); color: var(--muted); margin-left: .3rem; vertical-align: middle; }
.tag.cold { background: #e8f1fb; border-color: #b8d3f0; color: #1b4e8a; }
.tag.thermal { background: #fdecea; border-color: #f5c2bc; color: #8c2a20; }
.tag.planned { background: #f1f1f1; }
.people h3 { margin-top: 1.25rem; }
.people ul { list-style: none; padding: 0; margin: 0; }
.people li { padding: .15rem 0; }
.people .role { color: var(--muted); }
.papers li { margin: .35rem 0; }
.footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--rule); font-size: .82rem; color: var(--muted); }
.menu-toggle { display: none; }
@media (max-width: 860px) {
  .layout { flex-direction: column; }
  .sidebar { width: auto; flex: none; }
  .sidebar nav { display: flex; flex-wrap: wrap; gap: .25rem; }
  .sidebar nav .group { width: 100%; margin: .5rem 0 0; }
  main { padding: 1.25rem 1rem 3rem; }
  th { position: static; }
}
@media print { .sidebar { display: none; } main { padding: 0; max-width: none; } }