/* ---------------------------------------------------------------------------
   Anonymous project page.

   Structure follows the common "one column, wide video band" project-page
   layout, but the visual identity here is deliberately its own: a distinct
   accent, serif display headings, and square-cornered panels. Do not paste in
   a stylesheet from a previous project of yours -- a reviewer who recognizes
   the theme has de-anonymized the submission before reading a word.
   --------------------------------------------------------------------------- */

:root{
  --text:#16181d;
  --muted:#5d626c;
  --border:#dcdfe4;
  --rule:#c9ced6;

  --bg:#fbfbfa;
  --panel1:#eef1f4;      /* TL;DR */
  --panel2:#f5f6f7;      /* Abstract */
  --panel3:#f8f9fa;      /* details / disclosure bodies */

  --accent:#1f5c4a;      /* deep green: links, rules, badge hover */
  --accent-soft:#e7efeb;

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;

  --max: 1000px;         /* normal content width */
  --wide: 1560px;        /* wide video band */
}

*{ box-sizing: border-box; }
html,body{ margin:0; padding:0; background:var(--bg); color:var(--text); }
body{
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Noto Sans", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a{ color:var(--accent); text-decoration:none; border-bottom:1px solid rgba(31,92,74,.28); }
a:hover{ border-bottom-color: var(--accent); }

/* ======================
   Layout containers
   ====================== */
.container{ max-width:var(--max); margin:0 auto; padding:40px 20px 70px; }
.wide-section{ max-width:var(--wide); margin:0 auto; padding:0 20px; }
.wide-section, .container{ overflow-x:hidden; }
video, img{ max-width:100%; }

/* ======================
   Header
   ====================== */
.page-title{
  font-family: var(--serif);
  text-align:center;
  font-size: 60px;
  line-height:1.05;
  font-weight:600;
  margin:0 0 18px;
  letter-spacing:-0.02em;
}

.subtitle{
  text-align:center;
  color:var(--muted);
  font-size:24px;
  line-height:1.35;
  margin:0 0 22px;
  font-weight:400;
}

/* Anonymity banner. Keep this until the paper is de-anonymized. */
.anon{
  max-width:640px;
  margin:0 auto 18px;
  text-align:center;
  font-size:15px;
  color:var(--muted);
  background:var(--accent-soft);
  border:1px solid var(--border);
  padding:10px 14px;
}
.anon b{ color:var(--text); }

.venue{ text-align:center; color:var(--muted); font-size:15px; margin:0 0 20px; }

/* ======================
   Badges
   ====================== */
.badges{ display:flex; justify-content:center; gap:10px; flex-wrap:wrap; margin:16px 0 10px; }
.badge{
  display:inline-block;
  border:1px solid var(--rule);
  background:#fff;
  padding:8px 16px;
  font-size:14px;
  color:var(--text);
  border-bottom-width:1px;
}
.badge:hover{ background:var(--accent); color:#fff; border-color:var(--accent); }
.badge.disabled{ color:var(--muted); background:#f2f2f2; pointer-events:none; }

.note{ max-width:820px; margin:12px auto 0; color:var(--muted); font-size:14px; text-align:center; }

/* ======================
   Sections
   ====================== */
.section{ margin-top:38px; padding-top:16px; border-top:2px solid var(--rule); }
.section h2{ font-family:var(--serif); margin:0 0 14px; font-size:30px; font-weight:600; letter-spacing:-0.01em; }
.section h3{ margin:20px 0 10px; font-size:20px; font-weight:600; }
.small{ color:var(--muted); font-size:14px; }

.panel{ border:1px solid var(--border); padding:18px 20px; margin-top:20px; }
.panel h2{ margin-top:0; }
.panel.tldr{ background:var(--panel1); }
.panel.abstract{ background:var(--panel2); }
.panel.tldr p{ font-size:18px; line-height:1.7; margin:0; }

/* ======================
   Media
   ====================== */
.video, .figure{ border:1px solid var(--border); overflow:hidden; background:#000; }
.figure{ background:#fff; }
.video video, .video iframe, .figure img{ width:100%; height:auto; display:block; }
.figure-small{ max-width:760px; margin:0 auto; }

/* ======================
   Grids
   ====================== */
.grid{ display:grid; grid-template-columns:repeat(auto-fit, minmax(260px,1fr)); gap:16px; }
.grid.two-col{ grid-template-columns:repeat(2, minmax(0,1fr)); gap:20px; align-items:start; }
.grid.grid-3wide{ grid-template-columns:repeat(3, minmax(0,1fr)); gap:22px; align-items:start; }
@media (max-width:1100px){ .grid.grid-3wide{ grid-template-columns:repeat(2, minmax(0,1fr)); } }
@media (max-width:720px){ .grid.grid-3wide, .grid.two-col{ grid-template-columns:1fr; } }
.vidcell h3{ margin:0 0 8px; font-size:18px; }
.span-2{ grid-column:1 / -1; }

/* ===========================================================
   Disclosure panels -- the "put the appendix on the webpage"
   mechanism. Collapsed by default so the page stays video-first;
   a reviewer who wants the reward weights clicks once.
   =========================================================== */
details.detail{
  border:1px solid var(--border);
  background:var(--panel3);
  margin:14px 0;
}
details.detail > summary{
  cursor:pointer;
  padding:12px 16px;
  font-weight:600;
  font-size:16px;
  list-style:none;
  display:flex;
  align-items:baseline;
  gap:10px;
  user-select:none;
}
details.detail > summary::-webkit-details-marker{ display:none; }
details.detail > summary::before{
  content:"+";
  font-family:var(--mono);
  color:var(--accent);
  font-weight:700;
  width:1em;
}
details.detail[open] > summary::before{ content:"\2212"; }
details.detail[open] > summary{ border-bottom:1px solid var(--border); }
details.detail > summary:hover{ background:var(--accent-soft); }
.detail-body{ padding:4px 18px 18px; }
.detail-body > :first-child{ margin-top:12px; }
summary .tag{ font-weight:400; font-size:13px; color:var(--muted); }

/* ======================
   Tables (reward / hyperparameter dumps)
   ====================== */
.tablewrap{ overflow-x:auto; margin:14px 0; border:1px solid var(--border); background:#fff; }
table{ border-collapse:collapse; width:100%; font-size:14px; }
th, td{ text-align:left; padding:8px 12px; border-bottom:1px solid var(--border); vertical-align:top; }
thead th{ background:#f0f2f4; font-weight:600; white-space:nowrap; position:sticky; top:0; }
tbody tr:last-child td{ border-bottom:none; }
tbody tr:hover{ background:var(--accent-soft); }
td code, th code, li code, p code{ font-family:var(--mono); font-size:.92em; background:#eef0f2; padding:1px 5px; }
td.num{ font-family:var(--mono); white-space:nowrap; }

/* ======================
   Lists & code
   ====================== */
.bullets{ margin:10px 0 16px; padding-left:22px; }
.bullets li{ margin:7px 0; }
ul{ padding-left:22px; }

pre{
  border:1px solid var(--border);
  padding:14px 16px;
  overflow:auto;
  background:#fff;
  font-family:var(--mono);
  font-size:13px;
  line-height:1.55;
}
pre code{ background:none; padding:0; }

/* Equation block, for the reward kernels. */
.eq{
  background:#fff;
  border-left:3px solid var(--accent);
  padding:10px 16px;
  margin:12px 0;
  overflow-x:auto;
}

/* ======================
   Details-page nav
   ====================== */
.toc{ border:1px solid var(--border); background:#fff; padding:16px 20px; margin-top:20px; }
.toc h2{ margin-top:0; font-size:20px; }
.toc ol{ margin:0; padding-left:22px; }
.toc li{ margin:4px 0; }
.backlink{ display:inline-block; margin-bottom:8px; font-size:14px; }

.footer{ margin-top:46px; padding-top:16px; border-top:1px solid var(--border); color:var(--muted); font-size:13px; text-align:center; }

@media (max-width:720px){
  .page-title{ font-size:40px; }
  .subtitle{ font-size:19px; }
}

/* ======================
   Trajectory tabs (index.html)
   ====================== */
.tabs{ display:flex; flex-wrap:wrap; gap:8px; justify-content:center; margin:6px 0 18px; }
.tab{ font:inherit; font-size:15px; padding:8px 16px; border:1px solid var(--rule); background:#fff; color:var(--text); cursor:pointer; }
.tab:hover{ border-color:var(--accent); }
.tab[aria-selected="true"]{ background:var(--accent); border-color:var(--accent); color:#fff; }
.tab:focus-visible{ outline:2px solid var(--accent); outline-offset:2px; }
/* Same width as the text column (1000px container minus padding), like every other video. */
.tabpanel{ max-width:960px; margin:0 auto 8px; }
.tabpanel h3{ font-size:18px; margin:18px 0 8px; }
.video-pending{ border:1px dashed var(--rule); background:var(--panel3); color:var(--muted);
  text-align:center; padding:48px 16px; font-size:15px; margin:6px 0 14px; }

/* Dense results tables: nine columns of mean ± std must fit the 1000px column. */
table.compact{ font-size:13px; }
table.compact th, table.compact td{ padding:6px 6px; }
table.compact td.num{ font-size:12.5px; }
table.compact td:first-child{ white-space:nowrap; }