/* llmvram — dark instrument panel
   palette: #000 base / #1e1e24 glass / #00aaff accent / #4a4a5a lines
   type: Inter (UI) + Fira Code (data) */

/* Self-hosted fonts (TASK-20261014074355337, 2026-10-14): single source for
   @font-face — every page links this stylesheet, so templates carry zero font
   markup. url() resolves relative to THIS file, so it is correct at any page
   depth in both environments (app/assets/ prototype, dist/assets/ deploy).
   Source: fontsource 5.3.0 pinned (@fontsource/inter, @fontsource/fira-code),
   latin subsets; license: SIL OFL 1.1 (Inter © rsms, Fira Code © tonsky).
   Replaces Google Fonts css2 (render-blocking + third-party availability). */
@font-face {
  font-family: "Inter"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("fonts/inter-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Inter"; font-style: normal; font-weight: 600; font-display: swap;
  src: url("fonts/inter-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Inter"; font-style: normal; font-weight: 700; font-display: swap;
  src: url("fonts/inter-latin-700-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Fira Code"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("fonts/fira-code-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Fira Code"; font-style: normal; font-weight: 500; font-display: swap;
  src: url("fonts/fira-code-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Fira Code"; font-style: normal; font-weight: 600; font-display: swap;
  src: url("fonts/fira-code-latin-600-normal.woff2") format("woff2");
}

:root {
  --bg: #000000;
  --panel: #1e1e24f5;
  --panel-line: #4a4a5a;
  --accent: #00aaff;
  --text: #e0e0e0;
  --text-dim: #9a9aab;
  --ok: #4caf50;
  --tight: #ffc107;
  --no: #f44336;
  --mono: "Fira Code", ui-monospace, SFMono-Regular, Menlo, monospace;
  --ui: "Inter", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--ui);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--accent); color: #000; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.15); border-radius: 3px; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 20px; }

/* header */
.site-head {
  border-bottom: 1px solid var(--panel-line);
  padding: 14px 0;
  display: flex; justify-content: space-between; align-items: baseline;
}
.brand { font-family: var(--mono); font-weight: 600; font-size: 17px; color: var(--text); }
.brand b { color: var(--accent); font-weight: 600; }
.site-head nav a {
  font-family: var(--mono); font-size: 11px; text-transform: uppercase;
  letter-spacing: .18em; color: var(--text-dim); margin-left: 26px;
}
.site-head nav a:hover { color: var(--accent); text-decoration: none; }

/* hero */
.hero { padding: 64px 0 40px; }
.kicker {
  font-family: var(--mono); font-size: 11px; text-transform: uppercase;
  letter-spacing: .28em; color: var(--text-dim); margin-bottom: 18px;
}
.kicker::before { content: "▮ "; color: var(--accent); }
.hero h1 {
  font-size: clamp(30px, 4.6vw, 52px); font-weight: 600;
  letter-spacing: -0.02em; line-height: 1.08; max-width: 16em;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .sub { margin-top: 18px; color: var(--text-dim); max-width: 46em; }

/* layout: inputs left, results right */
.calc { display: grid; grid-template-columns: 340px 1fr; gap: 20px; margin: 40px 0 8px; }
@media (max-width: 860px) { .calc { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  padding: 22px;
  backdrop-filter: blur(8px);
}
.panel h2 {
  font-family: var(--mono); font-size: 11px; text-transform: uppercase;
  letter-spacing: .22em; color: var(--text-dim); font-weight: 500;
  padding-bottom: 14px; margin-bottom: 18px;
  border-bottom: 1px solid var(--panel-line);
}

.field { margin-bottom: 18px; }
.field label {
  display: flex; justify-content: space-between;
  font-size: 12px; color: var(--text-dim); margin-bottom: 7px;
  font-family: var(--mono); letter-spacing: .06em;
}
.field label output { color: var(--accent); }
select, input[type="number"] {
  width: 100%; background: #141419; color: var(--text);
  border: 1px solid var(--panel-line); padding: 9px 10px;
  font-family: var(--mono); font-size: 13px; border-radius: 3px;
}
select:focus, input:focus { outline: 1px solid var(--accent); border-color: var(--accent); }
input[type="range"] {
  width: 100%; accent-color: var(--accent); height: 18px;
}

/* readout */
.readout-total {
  font-family: var(--mono); font-size: clamp(44px, 6vw, 68px);
  font-weight: 600; color: var(--accent); line-height: 1;
  letter-spacing: -0.02em; font-variant-numeric: tabular-nums;
}
.readout-for { color: var(--text-dim); font-size: 13px; margin: 10px 0 20px; font-family: var(--mono); }
.stack-bar { display: flex; height: 10px; border: 1px solid var(--panel-line); margin-bottom: 6px; }
.stack-bar div { height: 100%; }
#bar-weights { background: var(--accent); }
#bar-kv { background: #6a5acd; }
#bar-overhead { background: #55555f; }
.legend { display: flex; gap: 18px; font-size: 11px; font-family: var(--mono); color: var(--text-dim); margin-bottom: 22px; flex-wrap: wrap; }
.legend i { display: inline-block; width: 8px; height: 8px; margin-right: 5px; }

.kv { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--panel-line); border: 1px solid var(--panel-line); margin-bottom: 22px; }
.kv > div { background: #141419; padding: 12px 14px; min-width: 0; }
.kv .k { font-size: 10px; font-family: var(--mono); text-transform: uppercase; letter-spacing: .18em; color: var(--text-dim); }
.kv .v { font-family: var(--mono); font-size: 16px; margin-top: 4px; font-variant-numeric: tabular-nums; }
@media (max-width: 400px) { .kv { grid-template-columns: 1fr; } }

.rec { font-size: 13px; color: var(--text-dim); line-height: 1.9; }
.rec b { color: var(--text); font-weight: 600; }

/* tables */
.tbl-group { margin: 0; }
.tbl-h3 { margin: 26px 0 8px; }
.tbl-h3-lead { margin-top: 18px; }
.tbl-wrap { overflow-x: auto; border: 1px solid var(--panel-line); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th {
  font-family: var(--mono); font-size: 10px; text-transform: uppercase;
  letter-spacing: .16em; color: var(--text-dim); font-weight: 500;
  text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--panel-line);
  white-space: nowrap; background: #141419;
}
td { padding: 10px 12px; border-bottom: 1px solid #26262e; }
tr:last-child td { border-bottom: 0; }
tbody tr { transition: background .15s; }
tbody tr:hover { background: #1a1a21; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.num { text-align: right; white-space: nowrap; }
.dim { color: var(--text-dim); }
.vendor { display: block; font-size: 11px; color: var(--text-dim); }
.mlink { color: var(--text); font-weight: 600; }
.mlink:hover { color: var(--accent); text-decoration: none; }
.license { font-size: 12px; color: var(--text-dim); }

.badge {
  font-family: var(--mono); font-size: 10px; letter-spacing: .12em;
  padding: 3px 8px; border: 1px solid;
}
.badge-ok { color: var(--ok); border-color: var(--ok); }
.badge-tight { color: var(--tight); border-color: var(--tight); }
.badge-no { color: var(--no); border-color: var(--no); }
/* provisional = theory pending measurement (often an upper bound): muted gray-purple, not alarm red */
.badge-prov { color: #a08fc9; border-color: #a08fc9; }
tr.fit-ok td:first-child { box-shadow: inset 2px 0 0 var(--ok); }
tr.fit-tight td:first-child { box-shadow: inset 2px 0 0 var(--tight); }
tr.fit-no td:first-child { box-shadow: inset 2px 0 0 var(--no); }
tr.fit-no { opacity: .55; }

/* sections */
section { margin: 56px 0; }
.sec-head { margin-bottom: 20px; }
.sec-head h2 { font-size: 24px; font-weight: 600; letter-spacing: -0.01em; }
.sec-head p { color: var(--text-dim); margin-top: 6px; max-width: 52em; }

/* faq */
details { border-bottom: 1px solid #26262e; padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; list-style: none; }
summary::before { content: "+ "; color: var(--accent); font-family: var(--mono); }
details[open] summary::before { content: "– "; }
details p { color: var(--text-dim); margin-top: 10px; max-width: 56em; }

/* footer */
.site-foot {
  border-top: 1px solid var(--panel-line); margin-top: 72px;
  padding: 28px 0 40px; color: var(--text-dim); font-size: 12px;
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.dogfood {
  font-family: var(--mono); font-size: 11px; letter-spacing: .08em;
  border: 1px solid var(--panel-line); padding: 8px 12px; color: var(--text-dim);
}
.dogfood b { color: var(--accent); font-weight: 600; }

/* model page */
.spec-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 1px; background: var(--panel-line); border: 1px solid var(--panel-line); margin: 22px 0; }
.spec-grid > div { background: #141419; padding: 14px 16px; }
.spec-grid .k { font-size: 10px; font-family: var(--mono); text-transform: uppercase; letter-spacing: .16em; color: var(--text-dim); }
.spec-grid .v { font-family: var(--mono); font-size: 15px; margin-top: 5px; }
.crumb { font-family: var(--mono); font-size: 11px; color: var(--text-dim); letter-spacing: .1em; margin: 26px 0 0; }
.crumb a { color: var(--text-dim); }
.crumb a:hover { color: var(--accent); }
.cta-row { margin: 26px 0; }
.cta {
  display: inline-block; font-family: var(--mono); font-size: 12px;
  text-transform: uppercase; letter-spacing: .18em;
  border: 1px solid var(--accent); color: var(--accent);
  padding: 12px 22px; transition: background .2s, color .2s;
}
.cta:hover { background: var(--accent); color: #000; text-decoration: none; }
.prose { max-width: 62em; color: var(--text-dim); }
.prose h2 { color: var(--text); font-size: 19px; margin: 30px 0 10px; }
.prose h3 { color: var(--text); font-size: 16px; margin: 22px 0 6px; }
/* h3 外链(hub 四 app 卡标题):下划线全断点常驻——继承色静止态无痕,
   「不注意看都不知道可以点」(站长 2026-09-20);白字保层级,线给可点信号 */
.prose h3 a { color: inherit; text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose h3 a:hover { color: var(--accent); text-decoration-color: var(--accent); }

/* ¶ 段落锚链接(share link 批 2026-09-20,站长令):字符由 CSS ::after 生成,
   不进文本流(FAQ/JSON-LD 逐字对账硬闸不受扰);常驻淡色而非 hover 才显——
   手机无 hover,常显才可点(mobile first);桌面 hover 变 accent 提示可点。 */
a.anchor::after { content: "\00B6"; }
a.anchor {
  color: var(--text-dim); opacity: .55; text-decoration: none;
  font-size: .85em; margin-left: 4px;
}
a.anchor:hover { color: var(--accent); opacity: 1; text-decoration: none; }

/* Share 按钮(navigator.share 探测显示):复用 .cta 描边形态,button 重置 */
button.cta { cursor: pointer; background: none; font: inherit; margin-left: 14px; }
@media (max-width: 640px) {
  button.cta { margin-left: 0; margin-top: 12px; }
}
.prose p { margin: 10px 0; }
.prose code { font-family: var(--mono); font-size: 13px; color: var(--accent); }

/* Footer inline links */
.foot-links { margin-top: 12px; display: flex; gap: 16px; flex-wrap: wrap; }
.foot-links a { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; color: var(--text-dim); }
.foot-links a:hover { color: var(--accent); text-decoration: none; }

/* Pending internal links (deploy prep 2026-09-07, TASK-20260907113543039):
   nav/footer items whose target page is not in dist yet. Mirrors the <a>
   rules exactly; swap back to <a> when the pages land. */
.site-head nav .plink {
  font-family: var(--mono); font-size: 11px; text-transform: uppercase;
  letter-spacing: .18em; color: var(--text-dim); margin-left: 26px;
}
.foot-links .plink { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; color: var(--text-dim); }