:root {
  --bg: #f6f7f9; --panel: #ffffff; --ink: #14171c; --muted: #5d6673; --line: #dde1e7;
  --accent: #2459d6; --live: #0f8a4f; --sim: #8a5a00; --replay: #6b3fb5; --bad: #c0322b;
  --live-bg: #e3f5ec; --sim-bg: #fbf0dc; --replay-bg: #efe8fa; --bad-bg: #fbe6e5;
  --hist: #0b6e7a; --hist-bg: #def3f5; --gold: #a8740a;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1015; --panel: #151a21; --ink: #e7ebf0; --muted: #94a0b0; --line: #283039;
    --accent: #6d9bff; --live: #3fd08a; --sim: #f0b443; --replay: #b392f0; --bad: #ff6b62;
    --live-bg: #0f2a1d; --sim-bg: #2e2410; --replay-bg: #241a36; --bad-bg: #36140f;
    --hist: #4fd1de; --hist-bg: #0d2a2e; --gold: #e6b34a;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1015; --panel: #151a21; --ink: #e7ebf0; --muted: #94a0b0; --line: #283039;
  --accent: #6d9bff; --live: #3fd08a; --sim: #f0b443; --replay: #b392f0; --bad: #ff6b62;
  --live-bg: #0f2a1d; --sim-bg: #2e2410; --replay-bg: #241a36; --bad-bg: #36140f;
  --hist: #4fd1de; --hist-bg: #0d2a2e; --gold: #e6b34a;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 system-ui, -apple-system, Segoe UI, sans-serif; }
.top { display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; align-items: center; padding: 14px 16px; border-bottom: 1px solid var(--line); background: var(--panel); }
.brand { font-weight: 700; letter-spacing: .08em; min-width: 0; flex: 1 1 auto; }
.brand .gyw { color: var(--gold); }
.brand .tf { color: var(--ink); }
.brand .sub { font-weight: 400; letter-spacing: 0; color: var(--muted); margin-left: 8px; font-size: 13px; }
.net { font: 12px var(--mono); color: var(--muted); }
.tabs { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: thin; padding: 6px 16px 0; min-width: 0; }
.tabs button { border: 0; background: none; color: var(--muted); padding: 8px 12px; font: inherit; font-size: 14px; cursor: pointer; border-bottom: 2px solid transparent; white-space: nowrap; }
.tabs button[hidden] { display: none; }
.tabs button[aria-selected="true"] { color: var(--ink); border-color: var(--accent); }
main { max-width: 1200px; margin: 0 auto; padding: 16px; }
.panel[hidden] { display: none; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
h2 { font-size: 18px; margin: 0 0 12px; } h3 { font-size: 15px; margin: 0 0 8px; }
label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 4px; }
input, select, textarea { width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--ink); font: inherit; }
button.primary { background: var(--accent); color: #fff; border: 0; border-radius: 6px; padding: 10px 16px; font: inherit; font-weight: 600; cursor: pointer; }
button.primary:disabled { opacity: .5; cursor: default; }
button.ghost { background: none; border: 1px solid var(--line); color: var(--ink); border-radius: 6px; padding: 8px 12px; font: inherit; cursor: pointer; }
.badge { display: inline-block; font: 600 11px var(--mono); padding: 2px 6px; border-radius: 4px; letter-spacing: .04em; }
.badge.live { color: var(--live); background: var(--live-bg); }
.badge.sim { color: var(--sim); background: var(--sim-bg); }
.badge.replay { color: var(--replay); background: var(--replay-bg); }
.badge.mainnet { color: var(--accent); background: var(--bg); border: 1px solid var(--accent); }
.badge.bad { color: var(--bad); background: var(--bad-bg); }
.badge.hist { color: var(--hist); background: var(--hist-bg); }
.badge.prop { color: var(--ink); background: var(--bg); border: 1px dashed var(--muted); }
.muted { color: var(--muted); } .mono { font-family: var(--mono); font-size: 12px; overflow-wrap: anywhere; }
.err { color: var(--bad); }
a { color: var(--accent); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.foot { padding: 16px; color: var(--muted); font-size: 12px; text-align: center; }
@media (max-width: 600px) {
  table.tf-stack, table.tf-stack tbody, table.tf-stack tr, table.tf-stack td { display: block; width: 100%; }
  table.tf-stack thead { display: none; }
  table.tf-stack tr { padding: 6px 0; border-bottom: 1px solid var(--line); }
  /* Label floats left; the cell's own inline content (text + badges + links) flows together on the right. */
  table.tf-stack td { display: flow-root; border: 0; padding: 3px 0; text-align: right; overflow-wrap: anywhere; }
  table.tf-stack td::before { content: attr(data-label); float: left; width: 40%; padding-right: 8px; color: var(--muted); text-align: left; overflow-wrap: normal; }
  table.tf-stack td:not([data-label])::before { content: none; }
}
/* Desktop: wrap the tab bar so every tab stays visible as modules are added; phones keep the scroll strip. */
@media (min-width: 900px) { .tabs { flex-wrap: wrap; overflow-x: visible; } }
.badge { white-space: nowrap; }
/* Long hashes/addresses never push the page wider than the viewport. */
main, .panel, .card { min-width: 0; }
.card { overflow-wrap: anywhere; }
.card pre { max-width: 100%; overflow-x: auto; }
.replay-banner { position: sticky; top: 0; z-index: 20; display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; padding: 8px 16px; background: var(--replay-bg); color: var(--ink); border-bottom: 2px solid var(--replay); font-size: 13px; }
.replay-banner b { color: var(--replay); }

/* ---- GYW1313 primary navigation ---- */
.top-actions { display: flex; gap: 8px; align-items: center; }
.present-btn { background: var(--accent); color: #fff; border: 0; border-radius: 999px; padding: 7px 14px; font: inherit; font-weight: 700; font-size: 13px; letter-spacing: .04em; cursor: pointer; white-space: nowrap; }
.present-btn.on { outline: 2px solid var(--gold); outline-offset: 2px; }
.theme-btn { padding: 6px 10px; font-size: 13px; white-space: nowrap; }
.menu-btn { display: none; background: none; border: 1px solid var(--line); color: var(--ink); border-radius: 6px; padding: 6px 10px; font: inherit; font-size: 13px; cursor: pointer; }
.gnav { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--line); }
.gnav button { border: 1px solid var(--line); background: var(--bg); color: var(--ink); border-radius: 999px; padding: 6px 12px; font: 700 12px/1.3 system-ui, -apple-system, Segoe UI, sans-serif; letter-spacing: .06em; cursor: pointer; white-space: nowrap; }
.gnav button[aria-current="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.gnav button.pending { color: var(--muted); border-style: dashed; }
.gnav button small { font-weight: 500; letter-spacing: 0; opacity: .8; }
.subnav { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 0 12px; background: var(--panel); border-bottom: 1px solid var(--line); min-width: 0; }
.subnav .tabs { flex: 1 1 auto; }
.tabs-extra { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; padding: 6px 16px; }
.tabs-extra:empty { display: none; }
.tabs-extra .tabs-label { font-size: 12px; color: var(--muted); }
.tabs-extra .chip { border: 1px solid var(--accent); background: none; color: var(--accent); border-radius: 999px; padding: 4px 10px; font: 600 12px system-ui, sans-serif; cursor: pointer; }
.tabs-extra .coming { font-size: 13px; color: var(--muted); font-style: italic; }
@media (max-width: 760px) {
  .menu-btn { display: inline-block; }
  .brand .sub { display: block; margin-left: 0; }
  .gnav { display: none; flex-direction: column; gap: 4px; }
  .gnav.open { display: flex; }
  .gnav button { text-align: left; border-radius: 8px; white-space: normal; }
  .top { padding: 10px 16px; }
}