/* Front door only. House default is the dark tokens from
   specs/front-door-design-source.html (#0f1210 / #4cc38a).
   Light is data-theme="light", or an explicit prefers-color-scheme: light
   when the visitor has not chosen. Tape Mode does not use this file.
   IBM Plex is self-hosted (OFL); the door does not request a third-party font. */
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("fonts/ibm-plex-sans-latin-700-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-latin-600-normal.woff2") format("woff2");
}

:root {
  color-scheme: dark;
  --bg: #0f1210;
  --panel: #161a17;
  --panel-2: #1d221e;
  --ink: #e9ebe7;
  --ink-2: #a9aea6;
  --ink-3: #aaaea9;
  --line: #262b27;
  --line-strong: #3a403b;
  --accent: #4cc38a;
  --accent-soft: #1c2b21;
  --up: #4cc38a;
  --down: #e7978d;
  --amber: #d9a44a;
  --gold: #C39A3B;
  --chip: #20261f;
  --row-hover: #1a201b;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.55);
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #fafaf8;
  --panel: #ffffff;
  --panel-2: #f2f1ec;
  --ink: #16181a;
  --ink-2: #4c5157;
  --ink-3: #4e5054;
  --line: #e2e0d8;
  --line-strong: #c9c6bb;
  --accent: #0a5d2c;
  --accent-soft: #e3f0e7;
  --up: #0a5d2c;
  --down: #9e3429;
  --amber: #a96f0d;
  --gold: #856628;
  --chip: #efeee8;
  --row-hover: #f5f7f4;
  --shadow: 0 18px 50px rgba(20, 24, 20, 0.16);
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    color-scheme: light;
    --bg: #fafaf8;
    --panel: #ffffff;
    --panel-2: #f2f1ec;
    --ink: #16181a;
    --ink-2: #4c5157;
    --ink-3: #4e5054;
    --line: #e2e0d8;
    --line-strong: #c9c6bb;
    --accent: #0a5d2c;
    --accent-soft: #e3f0e7;
    --up: #0a5d2c;
    --down: #9e3429;
    --amber: #a96f0d;
    --gold: #856628;
    --chip: #efeee8;
    --row-hover: #f5f7f4;
    --shadow: 0 18px 50px rgba(20, 24, 20, 0.16);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.topbar {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-in { display: flex; align-items: center; gap: 18px; min-height: 56px; height: auto; }
.wordmark {
  font-family: "IBM Plex Mono", monospace; font-weight: 600; font-size: 15px;
  letter-spacing: -0.01em; color: var(--ink); text-decoration: none; white-space: nowrap;
}
.wordmark .dot { color: var(--accent); }
.topnav { display: flex; gap: 22px; margin-left: auto; flex-wrap: wrap; }
.topnav a { color: var(--ink-2); text-decoration: none; font-size: 14px; font-weight: 500; }
.topnav a:hover { color: var(--ink); }
.theme-toggle { margin-left: auto; }
abbr { text-decoration: none; }
@media (max-width: 860px) {
  .topbar-in { height: auto; flex-wrap: wrap; padding: 10px 0; gap: 10px 16px; }
  .topnav { margin-left: 0; gap: 12px 16px; }
}

.hero { padding: 52px 0 8px; }
.hero h1 {
  font-size: clamp(34px, 5.2vw, 47px); line-height: 1.06; letter-spacing: -0.025em;
  font-weight: 700; margin: 0 0 12px; max-width: 640px; color: var(--ink);
}
.hero h1 .u { box-shadow: inset 0 -0.32em 0 var(--accent-soft); }
.tagline {
  margin: 0 0 12px;
  max-width: 640px;
  color: var(--accent);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.011em;
}
.hero p.lede { font-size: 18px; color: var(--ink-2); max-width: 620px; margin: 0; }
.hero p.lede strong { color: var(--ink); font-weight: 600; }

.statstrip {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  border: 1px solid var(--line); border-radius: 10px; background: var(--panel);
  margin: 34px 0 8px; overflow: hidden;
}
.stat { padding: 16px 20px 14px; border-left: 1px solid var(--line); }
.stat:first-child { border-left: none; }
.stat .n { font-family: "IBM Plex Mono", monospace; font-size: 27px; font-weight: 600; letter-spacing: -0.02em; }
#statTop { color: var(--gold); }
.stat .l { font-size: 12.5px; color: var(--ink-3); margin-top: 2px; }
@media (max-width: 720px) {
  .statstrip { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { border-left: none; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
}

section { padding: 44px 0 6px; scroll-margin-top: 72px; }
#top { scroll-margin-top: 64px; }
.sec-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 6px; }
.sec-head h2 { font-size: 24px; letter-spacing: -0.02em; margin: 0; font-weight: 700; }
.sec-head .sub { color: var(--ink-2); font-size: 15px; }
.sec-head .sub a { color: var(--accent); }
.live-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--gold); margin-right: 7px; vertical-align: 1px;
}

.controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 18px 0 14px; }
.controls .spacer { flex: 1; }
.search {
  display: flex; align-items: center; gap: 8px; border: 1px solid var(--line); background: var(--panel);
  border-radius: 8px; padding: 0 12px; height: 38px; min-width: 210px;
}
.search input {
  border: none; outline: none; background: transparent; color: var(--ink);
  font: 400 14px "IBM Plex Sans", sans-serif; width: 100%;
}
.search svg { flex: none; color: var(--ink-3); }

.board { border: 1px solid var(--line); border-radius: 10px; background: var(--panel); overflow: hidden; }
table { width: 100%; border-collapse: collapse; }
thead th {
  text-align: left; font-size: 11.5px; font-weight: 600; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--ink-3); padding: 12px 14px; border-bottom: 1px solid var(--line); background: var(--panel);
  white-space: nowrap; user-select: none;
}
th.sortable { cursor: pointer; }
th.sortable:hover { color: var(--ink); }
th .arrow { font-size: 9px; margin-left: 4px; }
th.num, td.num { text-align: right; }
tbody td { padding: 13px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr[hidden] { display: none; }
tbody tr:hover { background: var(--row-hover); }
td.rank { font-family: "IBM Plex Mono", monospace; font-weight: 600; font-size: 15px; width: 72px; }
.move { font-size: 11px; font-weight: 500; margin-left: 5px; }
.move.up { color: var(--up); }
.move.dn { color: var(--down); }
.move.flat { color: var(--ink-3); }
td.co .name { font-weight: 600; font-size: 15.5px; color: var(--ink); text-decoration: none; }
td.co .name:hover { color: var(--accent); }
td.co .meta { font-size: 12.5px; color: var(--ink-3); }
.cat {
  font-size: 12px; font-weight: 500; border: 1px solid var(--line); border-radius: 999px;
  padding: 3px 9px; white-space: nowrap; color: var(--ink-2);
}
td.roles { font-family: "IBM Plex Mono", monospace; font-size: 17px; font-weight: 600; }
td.chg { font-family: "IBM Plex Mono", monospace; font-size: 14.5px; font-weight: 500; color: var(--ink-2); }
.chg.pos { color: var(--up); }
.chg.neg { color: var(--down); }
td.vel { min-width: 148px; }
.velwrap { display: flex; align-items: center; gap: 10px; justify-content: flex-end; }
.chev { color: var(--ink-3); font-size: 12px; display: inline-block; }
tr[aria-expanded="true"] .chev { transform: rotate(90deg); }
tbody tr[aria-controls] { cursor: pointer; }
tbody tr[aria-controls]:hover .chev { color: var(--ink); }
tbody tr[aria-controls]:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.micro { display: flex; align-items: center; gap: 8px; margin-top: 5px; }
.micro-spark { flex: none; display: block; }
.micro-figs { display: flex; gap: 10px; font-family: "IBM Plex Mono", monospace; font-size: 11.5px; color: var(--ink-2); white-space: nowrap; }
.micro-figs .mf-k { color: var(--ink-3); font-size: 10px; letter-spacing: 0.05em; margin-right: 3px; }
.micro-figs .mf:first-child { color: var(--gold); }
.micro-figs .mf:first-child .mf-k { color: var(--gold); }
@media (max-width: 1100px) {
  .micro-figs .opt { display: none; }
}
@media (max-width: 520px) {
  .micro-figs .mid { display: none; }
}
.veln { font-family: "IBM Plex Mono", monospace; font-weight: 600; font-size: 15px; color: var(--gold); }
.stat-velocity .stat-val { color: var(--gold); }
.pop td { background: var(--panel-2); }
.pop-in { padding: 6px 8px 14px; display: grid; gap: 10px; }
.pop-note { margin: 0; color: var(--ink-2); font-size: 14px; max-width: 62ch; }
.pop-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px 16px; margin: 0; }
.pop-grid dt { font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; }
.pop-grid dd { margin: 3px 0 0; font-family: "IBM Plex Mono", monospace; font-size: 16px; font-weight: 600; }
.stat-readings { grid-column: 1 / -1; }
.stat-readings dd { display: flex; flex-direction: column; align-items: stretch; gap: 8px; }
.stat-readings .stat-val { white-space: normal; }
.meter-row, .share-row { display: flex; align-items: center; gap: 8px; width: 100%; }
.meter-row .stat-val, .share-row .stat-val { white-space: nowrap; }
.meter, .share { flex: 1; min-width: 64px; height: 8px; background: var(--line-strong); border-radius: 4px; overflow: hidden; }
.meter .fill, .share .fill { display: block; height: 100%; background: var(--ink-2); border-radius: 4px; }
.delta-chip {
  display: inline-flex; align-items: center; gap: 5px;
  border: 1px solid var(--line-strong); background: var(--chip);
  border-radius: 999px; padding: 3px 10px; line-height: 1.2; white-space: nowrap;
}
.delta-chip.up { color: var(--up); }
.delta-chip.dn { color: var(--down); }
.delta-chip.flat { color: var(--ink-3); }
.delta-chip .glyph { font-size: 11px; }
.hist { display: block; width: 100%; height: 40px; }
.hist-bar { fill: var(--ink-2); }
@media (max-width: 520px) {
  .pop-grid { grid-template-columns: 1fr; }
}
.pop-links { margin: 0; font-size: 14px; }
.pop-links a { font-weight: 600; }
.pop-k { margin: 4px 0 0; font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; }
.age-row { display: grid; grid-template-columns: minmax(88px, 160px) 1fr 40px; gap: 8px; align-items: center; font-size: 13px; }
.age-row .bar { height: 8px; background: var(--panel); border-radius: 4px; overflow: hidden; }
.age-row .fill { display: block; height: 100%; background: var(--ink-2); }
.age-row .pct { font-family: "IBM Plex Mono", monospace; text-align: right; color: var(--ink-2); }
.theme-toggle {
  background: transparent; color: var(--ink-2); border: 1px solid var(--line-strong);
  border-radius: 6px; font: 600 13px "IBM Plex Sans", sans-serif;
  min-height: 44px; padding: 0 12px; cursor: pointer;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink); }
.board-foot {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 11px 14px; border-top: 1px solid var(--line); font-size: 12.5px;
  color: var(--ink-3); background: var(--panel-2);
}
.empty-row td { text-align: center; color: var(--ink-2); padding: 34px 14px; font-size: 15px; }

@media (max-width: 860px) {
  thead { display: none; }
  table, tbody, tr, td { display: block; width: 100%; }
  tbody tr { padding: 12px 14px; border-bottom: 1px solid var(--line); }
  tbody tr:last-child { border-bottom: none; }
  tbody td { border: none; padding: 2px 0; text-align: left; }
  td.rank { width: auto; display: inline-block; font-size: 14px; }
  td.co { display: inline-block; margin-left: 8px; }
  td.cat-cell { display: none; }
  td.roles { display: inline-block; font-size: 20px; margin-top: 6px; }
  td.roles::after {
    content: " AI open";
    font-family: "IBM Plex Sans", sans-serif;
    font-size: 12.5px; font-weight: 400; color: var(--ink-3);
  }
  td.chg { display: inline-block; margin-left: 14px; }
  td.chg::before { content: "Δ "; color: var(--ink-3); }
  td.vel { min-width: 0; margin-top: 4px; }
  .velwrap { justify-content: flex-start; }
}

.duo { display: grid; grid-template-columns: 1fr 1.5fr; gap: 22px; margin-top: 20px; align-items: start; }
@media (max-width: 900px) { .duo { grid-template-columns: 1fr; } }
.card { border: 1px solid var(--line); border-radius: 10px; background: var(--panel); padding: 20px 22px; }
.card h3 { margin: 0 0 4px; font-size: 16.5px; letter-spacing: -0.01em; }
.card .csub { font-size: 13.5px; color: var(--ink-2); margin: 0 0 14px; }
.mover { display: flex; align-items: baseline; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.mover:last-child { border-bottom: none; }
.mover .m-name { font-weight: 600; font-size: 14.5px; color: var(--ink); text-decoration: none; }
.mover .m-name:hover { color: var(--accent); }
.mover .m-why { color: var(--ink-2); font-size: 13px; flex: 1; }
.mover .m-pct { font-family: "IBM Plex Mono", monospace; font-weight: 600; font-size: 14.5px; white-space: nowrap; }
.mover .m-pct.up { color: var(--up); }
.mover .m-pct.dn { color: var(--down); }
.shelf-wrap h3 { margin: 0 0 4px; font-size: 16.5px; letter-spacing: -0.01em; }
.shelf-wrap .csub { font-size: 13.5px; color: var(--ink-2); margin: 0 0 14px; }
.shelf { display: grid; grid-template-columns: repeat(auto-fill, minmax(225px, 1fr)); gap: 12px; }
.reading-card {
  border: 1px solid var(--line); border-radius: 10px; background: var(--panel);
  padding: 14px 16px; display: flex; flex-direction: column; gap: 8px; min-width: 0;
}
.rc-top { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.rc-title { margin: 0; font-size: 15px; letter-spacing: -0.01em; font-weight: 600; }
.rc-vel { font-family: "IBM Plex Mono", monospace; font-weight: 600; font-size: 16px; color: var(--gold); }
.rc-lead { margin: 0; font-size: 13px; color: var(--ink-2); }
.reading-card .bar { height: 8px; background: var(--panel-2); border-radius: 4px; overflow: hidden; }
.reading-card .bar .fill { display: block; height: 100%; background: var(--ink-2); border-radius: 4px; }
.rc-foot { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-top: auto; }
.rc-foot time { font-size: 12px; color: var(--ink-3); }
.rc-door { font-size: 13px; font-weight: 600; color: var(--ink-2); text-decoration: none; white-space: nowrap; }
.rc-door:hover { color: var(--ink); text-decoration: underline; }
.axis-note { font-size: 12px; color: var(--ink-3); margin: 8px 0 0; }

.steps { border-top: 1px solid var(--line); margin-top: 16px; }
.step {
  display: grid; grid-template-columns: 54px 190px 1fr; gap: 16px;
  padding: 18px 2px; border-bottom: 1px solid var(--line); align-items: baseline;
}
.step .no { font-family: "IBM Plex Mono", monospace; font-size: 14px; color: var(--accent); font-weight: 600; }
.step h3 { margin: 0; font-size: 16px; }
.step p { margin: 0; color: var(--ink-2); font-size: 15px; max-width: 640px; }
.step p code {
  font-family: "IBM Plex Mono", monospace; font-size: 13px; background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 4px; padding: 1px 5px;
}
@media (max-width: 640px) {
  .step { grid-template-columns: 34px 1fr; }
  .step p { grid-column: 2; }
}

footer { margin-top: 64px; border-top: 1px solid var(--line); padding: 26px 0 40px; }
.foot { display: flex; flex-wrap: wrap; gap: 10px 26px; align-items: baseline; font-size: 13.5px; color: var(--ink-3); }
.foot .wm { font-family: "IBM Plex Mono", monospace; color: var(--ink-2); font-weight: 600; }
.foot .tagline-foot { color: var(--accent); font-weight: 600; }
.foot nav { display: flex; gap: 18px; margin-left: auto; flex-wrap: wrap; }
.foot nav a { color: var(--ink-3); text-decoration: none; }
.foot nav a:hover { color: var(--ink); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Even Field leveling (fork): 24px targets and a visible search focus. */
.topbar .wordmark, .topnav a, footer nav a, .mover .m-name {
  display: inline-flex; align-items: center; justify-content: center; min-height: 24px; min-width: 24px;
}
#search { min-height: 24px; }
#search:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }