/* KH Labs LLM Bill Checker. Self-hosted fonts only (no third-party request). */
@font-face { font-family: "Instrument Sans"; font-style: normal; font-display: swap; font-weight: 400 700; font-stretch: 75% 100%;
  src: url("fonts/instrument-sans-latin-standard-normal.woff2") format("woff2"); }
@font-face { font-family: "Instrument Sans"; font-style: normal; font-display: swap; font-weight: 400 700; font-stretch: 75% 100%;
  src: url("fonts/instrument-sans-latin-ext-standard-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-display: swap; font-weight: 100 800;
  src: url("fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2"); }

:root {
  --ink: #06080C; --s1: #0D1117; --s2: #141A22; --s3: #1B222C;
  --line: rgba(238,241,245,.10); --line2: rgba(238,241,245,.18);
  --tx: #EEF1F5; --mu: #8D939C; --mu2: #80868F;
  --orange: #ff5a1f; --orange-h: #ff6d38;
  --seg-in: #D9DEE5; --seg-out: #B9A584; --seg-cache: #6E7682; --seg-write: #434A55; --seg-other: #2C333D;
  --ok: #3DDC97; --hold: #F5B942; --bad: #FF5C5C;
  --r1: 4px; --r2: 8px; --r3: 12px;
  --sans: "Instrument Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --ease: cubic-bezier(.2,.7,.2,1);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ink); color: var(--tx); font: 400 16px/1.55 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--tx); text-underline-offset: 3px; text-decoration-color: var(--line2); }
a:hover { text-decoration-color: var(--tx); }
p { margin: 0; }
.mono { font-family: var(--mono); font-size: .8125em; letter-spacing: 0; }
.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; z-index: 10; background: var(--s2); padding: 8px 12px; border-radius: var(--r1); }
:focus-visible { outline: 2px solid var(--tx); outline-offset: 2px; }
.print-only { display: none; }
[hidden] { display: none !important; }

/* bar */
.bar { border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; background: rgba(6,8,12,.86); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.bar-in { display: flex; align-items: center; justify-content: space-between; height: 56px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 600; font-size: 15px; white-space: nowrap; }
.crumb { color: var(--mu); font-weight: 500; }
.home-link { color: var(--mu); font-size: 14px; font-weight: 500; text-decoration: none; padding: 10px 4px; }
.home-link:hover { color: var(--tx); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 18px; border-radius: var(--r2);
  font: 600 15px/1.2 var(--sans); text-decoration: none; cursor: pointer; border: 1px solid transparent; text-align: center;
  transition: transform .15s var(--ease), background-color .15s, border-color .15s; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--orange); color: #fff; }
.btn-primary:hover { background: var(--orange-h); }
.btn-ghost { background: transparent; color: var(--tx); border-color: var(--line2); }
.btn-ghost:hover { border-color: rgba(238,241,245,.4); background: rgba(238,241,245,.04); }
.btn-sm { min-height: 36px; padding: 7px 12px; font-size: 14px; }
.chip { font: 500 14px/1.2 var(--sans); color: var(--tx); background: var(--s2); border: 1px solid var(--line); border-radius: 999px; padding: 9px 14px; min-height: 40px; cursor: pointer; transition: border-color .15s, background-color .15s; }
.chip:hover { border-color: var(--line2); background: var(--s3); }
.chip[aria-busy="true"] { opacity: .6; }

/* intro */
.intro { padding-top: 56px; padding-bottom: 64px; }
.eyebrow { color: var(--mu); text-transform: uppercase; letter-spacing: .06em; font-size: 12px; }
h1 { font-size: clamp(32px, 5.2vw, 56px); line-height: 1.04; letter-spacing: -.025em; font-weight: 600; font-stretch: 92%; margin: 14px 0 16px; max-width: 16ch; }
.lede { color: var(--mu); font-size: 18px; max-width: 60ch; }

.drop { margin-top: 32px; border: 1px dashed var(--line2); border-radius: var(--r3); background: var(--s1); padding: 36px 24px 20px; transition: border-color .15s, background-color .15s; }
.drop.over { border-color: var(--tx); background: var(--s2); }
.drop-main { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; }
.drop-ico { color: var(--mu); }
.drop-title { font-size: 20px; font-weight: 600; }
.drop-sub { color: var(--mu); font-size: 14px; max-width: 62ch; margin-bottom: 8px; }
.privacy { display: flex; gap: 10px; align-items: flex-start; margin: 28px auto 0; max-width: 720px; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--r2); background: var(--ink); font-size: 14px; color: var(--mu); }
.privacy svg { flex: none; margin-top: 3px; color: var(--tx); }
.privacy strong { color: var(--tx); font-weight: 600; }
.progress { position: relative; margin: 18px auto 0; max-width: 720px; height: 30px; border-radius: var(--r1); background: var(--ink); border: 1px solid var(--line); overflow: hidden; }
.progress-bar { position: absolute; inset: 0; background: rgba(238,241,245,.12); transform-origin: 0 50%; transform: scaleX(0); transition: transform .2s linear; }
.progress-txt { position: relative; display: block; line-height: 28px; padding: 0 10px; color: var(--tx); }
.error { margin: 18px auto 0; max-width: 720px; border: 1px solid rgba(255,92,92,.4); background: rgba(255,92,92,.06); border-radius: var(--r2); padding: 12px 14px; font-size: 14px; }
.error strong { color: var(--bad); }
.error code { font-family: var(--mono); font-size: 12px; color: var(--mu); word-break: break-word; }
.samples { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 20px; }
.samples-label { color: var(--mu); font-size: 14px; margin-right: 4px; }
.fine { color: var(--mu2); font-size: 13px; margin-top: 12px; }
.fine a { color: var(--mu); }

/* results */
.results { padding-top: 28px; padding-bottom: 72px; }
.file-row { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.file-name { color: var(--tx); font-size: 14px; word-break: break-all; }
.file-sub { color: var(--mu); font-size: 14px; }
.file-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.days { color: var(--mu); display: inline-flex; align-items: center; gap: 6px; font-size: 13px; }
.days input { width: 64px; min-height: 36px; background: var(--s1); color: var(--tx); border: 1px solid var(--line2); border-radius: var(--r1); padding: 4px 8px; font: 500 14px var(--mono); }

.kpis { display: grid; grid-template-columns: 1fr 1.6fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r3); overflow: hidden; margin-top: 24px; }
.kpi { background: var(--s1); padding: 20px 22px; min-width: 0; }
.kpi-l { color: var(--mu); font-size: 13px; }
.kpi-v { font-size: clamp(28px, 4vw, 40px); font-weight: 600; letter-spacing: -.02em; line-height: 1.15; margin-top: 4px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.kpi-v .dash { color: var(--mu); margin: 0 .12em; }
.kpi-v .per { font-size: .45em; color: var(--mu); font-weight: 500; margin-left: .3em; letter-spacing: 0; }
.kpi-s { color: var(--mu); font-size: 13px; margin-top: 4px; }

.notice { display: flex; gap: 10px; margin-top: 12px; padding: 12px 14px; border: 1px solid var(--line); border-left: 3px solid var(--hold); border-radius: var(--r2); background: var(--s1); font-size: 14px; color: var(--mu); }
.notice b { color: var(--tx); font-weight: 600; }
.notice.info { border-left-color: var(--mu); }

.sec { font-size: 18px; font-weight: 600; letter-spacing: -.01em; margin: 40px 0 6px; }
.sec-sub { color: var(--mu); font-size: 14px; margin-bottom: 16px; max-width: 72ch; }

.levers { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.lever { position: relative; background: var(--s1); border: 1px solid var(--line); border-radius: var(--r3); padding: 18px 18px 16px; display: flex; flex-direction: column; gap: 8px;
  opacity: 0; transform: translateY(10px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
.lever.in { opacity: 1; transform: none; }
.lever-n { font-family: var(--mono); font-size: 12px; color: var(--mu); }
.lever h3 { margin: 0; font-size: 17px; font-weight: 600; line-height: 1.3; }
@media (min-width: 901px) { .lever h3 { min-height: 2.6em; } }
.lever-v { font-size: 26px; font-weight: 600; letter-spacing: -.015em; font-variant-numeric: tabular-nums; }
.lever-v .per { font-size: 14px; color: var(--mu); font-weight: 500; }
.lever-why { color: var(--mu); font-size: 14px; }
.lever-meter { height: 6px; border-radius: 3px; background: var(--s3); position: relative; overflow: hidden; margin-top: 2px; }
.lever-meter i { position: absolute; top: 0; bottom: 0; left: 0; width: 100%; transform-origin: 0 50%; transform: scaleX(0); transition: transform .9s var(--ease); }
.lever-meter .lo { background: var(--tx); }
.lever-meter .hi { background: rgba(238,241,245,.28); }
.lever-q { font-size: 13px; color: var(--mu); border-top: 1px solid var(--line); padding-top: 10px; margin-top: auto; }
.how { align-self: flex-start; background: none; border: 0; padding: 4px 0; color: var(--tx); font: 500 14px var(--sans); text-decoration: underline; text-decoration-color: var(--line2); text-underline-offset: 3px; cursor: help; min-height: 32px; }
.how-pop { position: absolute; left: 12px; right: 12px; top: calc(100% - 8px); z-index: 4; background: var(--s2); border: 1px solid var(--line2); border-radius: var(--r2); padding: 14px; font-size: 13px; color: var(--mu);
  opacity: 0; transform: translateY(-4px); pointer-events: none; transition: opacity .15s, transform .15s; box-shadow: 0 16px 40px rgba(0,0,0,.45); }
.how-pop b { color: var(--tx); font-weight: 600; }
.how-pop code { font-family: var(--mono); font-size: 12px; color: var(--tx); display: block; background: var(--ink); border: 1px solid var(--line); border-radius: var(--r1); padding: 8px; margin: 6px 0 8px; white-space: pre-wrap; word-break: break-word; }
.how-pop ul { margin: 6px 0 0; padding-left: 16px; }
.how-pop li { margin: 2px 0; }
.lever.open .how-pop { opacity: 1; transform: none; pointer-events: auto; }
@media (hover: hover) { .lever:hover .how-pop, .lever:focus-within .how-pop { opacity: 1; transform: none; pointer-events: auto; } }
.also { color: var(--mu2); font-size: 13px; margin-top: 12px; }

.grid2 { display: grid; grid-template-columns: 1.35fr 1fr; gap: 12px; margin-top: 28px; }
.panel { background: var(--s1); border: 1px solid var(--line); border-radius: var(--r3); padding: 4px 20px 20px; min-width: 0; }
.panel .sec { margin-top: 16px; }
.legend, .split-legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12px; color: var(--mu); margin: 6px 0 14px; padding: 0; list-style: none; }
.legend span, .split-legend li { display: inline-flex; align-items: center; gap: 6px; }
.sw { width: 10px; height: 10px; border-radius: 2px; display: inline-block; flex: none; }
.models { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.m-top { display: flex; justify-content: space-between; gap: 12px; font-size: 14px; align-items: baseline; }
.m-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.m-name small { color: var(--mu2); font-family: var(--mono); font-size: 11px; margin-left: 6px; }
.m-val { font-variant-numeric: tabular-nums; white-space: nowrap; }
.m-val small { color: var(--mu); margin-left: 6px; }
.m-track { position: relative; height: 10px; margin-top: 6px; border-radius: 3px; background: var(--s3); overflow: hidden; }
.m-bar { position: absolute; inset: 0; display: flex; transform-origin: 0 50%; transform: scaleX(0); transition: transform .9s var(--ease); }
.m-bar i { display: block; height: 100%; flex: none; }
.badge { font: 500 10px/1 var(--mono); text-transform: uppercase; letter-spacing: .04em; padding: 3px 5px; border-radius: 3px; border: 1px solid var(--line2); color: var(--mu); margin-left: 6px; vertical-align: 1px; }
.badge.warn { color: var(--hold); border-color: rgba(245,185,66,.4); }
.badge.bad { color: var(--bad); border-color: rgba(255,92,92,.4); }

.split { display: flex; height: 28px; border-radius: var(--r1); overflow: hidden; margin-top: 10px; background: var(--s3); }
.split i { display: block; height: 100%; transform-origin: 0 50%; transform: scaleX(0); transition: transform .8s var(--ease); }
.split-legend li b { color: var(--tx); font-weight: 600; font-variant-numeric: tabular-nums; }
.sec-trend { margin-top: 24px !important; }
.trend { display: flex; align-items: flex-end; gap: 2px; height: 120px; border-bottom: 1px solid var(--line); }
.trend i { flex: 1 1 0; min-width: 1px; background: var(--seg-in); border-radius: 2px 2px 0 0; height: 100%; transform-origin: 50% 100%; transform: scaleY(0); transition: transform .7s var(--ease); }
.trend-axis { display: flex; justify-content: space-between; color: var(--mu2); font: 11px var(--mono); margin-top: 6px; }
.trend-note { color: var(--mu); font-size: 13px; margin-top: 8px; }

.prices { margin-top: 12px; padding-bottom: 16px; }
.prices summary { cursor: pointer; display: flex; align-items: baseline; gap: 12px; list-style: none; padding: 14px 0 4px; }
.prices summary::-webkit-details-marker { display: none; }
.prices summary::after { content: "+"; margin-left: auto; color: var(--mu); font-family: var(--mono); }
.prices[open] summary::after { content: "–"; }
.prices summary .sec { margin: 0; }
.asof { color: var(--mu); }
.table-scroll { overflow-x: auto; margin-top: 10px; }
.ptable { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 640px; }
.ptable th, .ptable td { text-align: left; padding: 8px 10px 8px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.ptable th { color: var(--mu); font-weight: 500; font-size: 12px; }
.ptable td.n { font-family: var(--mono); font-size: 12px; white-space: nowrap; }
.assume { margin: 10px 0 0; padding-left: 18px; color: var(--mu); font-size: 14px; }
.assume li { margin: 6px 0; }
.assume b { color: var(--tx); font-weight: 600; }

.cta { margin-top: 40px; border: 1px solid var(--line); border-radius: var(--r3); background: var(--s2); padding: 28px; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; }
.cta h2 { margin: 0 0 8px; font-size: 22px; letter-spacing: -.015em; }
.cta p { color: var(--mu); max-width: 60ch; }
.cta-btns { display: flex; flex-direction: column; gap: 10px; min-width: 300px; max-width: 360px; }

.cta-note { color: var(--mu); font-size: 13px; }
.foot { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--mu); font-size: 14px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 10px 0; }
.foot-links a { color: var(--mu); }

/* responsive */
@media (max-width: 900px) {
  .levers { grid-template-columns: 1fr; }
  .grid2 { grid-template-columns: 1fr; }
  .cta { grid-template-columns: 1fr; }
  .cta-btns { min-width: 0; max-width: none; }
  .how-pop { position: static; margin-top: 4px; display: none; opacity: 1; transform: none; box-shadow: none; }
  .lever.open .how-pop { display: block; }
  .lever:hover .how-pop, .lever:focus-within .how-pop { display: none; }
  .lever.open:hover .how-pop, .lever.open:focus-within .how-pop { display: block; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .crumb { display: none; }
  .intro { padding-top: 36px; padding-bottom: 44px; }
  .lede { font-size: 16px; }
  .drop { padding: 28px 16px 16px; }
  .drop .btn-primary { width: 100%; }
  .kpis { grid-template-columns: 1fr 1fr; }
  .kpi-wide { grid-column: 1 / -1; order: -1; }
  .kpi { padding: 16px; }
  .panel { padding: 4px 14px 16px; }
  .file-actions { width: 100%; }
  .file-actions .btn { flex: 1 1 auto; }
  .cta { padding: 20px; }
  .samples .chip { flex: 1 1 100%; text-align: left; }
}
/* print: one page, light, no chrome */
@media print {
  @page { size: A4; margin: 11mm 12mm; }
  :root { --tx: #111; --mu: #444; --mu2: #555; --line: #ccc; --line2: #bbb; --s1: #fff; --s2: #fff; --s3: #eee; --ink: #fff;
    --seg-in: #222; --seg-out: #8a7656; --seg-cache: #888; --seg-write: #bbb; --seg-other: #ddd; }
  body { background: #fff; color: #111; font-size: 10.5px; line-height: 1.4; }
  .bar, .intro, .foot, .file-actions, .cta-btns, .skip, .how, .also { display: none !important; }
  .print-only { display: block; }
  .results { padding: 0; display: block !important; }
  .wrap { max-width: none; padding: 0; }
  .report-head p { font-size: 10px; color: #444; margin-bottom: 2px; }
  .file-row { padding-bottom: 6px; }
  .file-name { font-size: 10px; } .file-sub { font-size: 10px; }
  .kpis { margin-top: 8px; border-radius: 4px; }
  .kpi { padding: 8px 10px; } .kpi-v { font-size: 20px; } .kpi-l, .kpi-s { font-size: 9.5px; }
  .notice { margin-top: 5px; padding: 5px 8px; font-size: 9.5px; }
  .sec { font-size: 12px; margin: 10px 0 2px; } .sec-sub { font-size: 9.5px; margin-bottom: 6px; }
  .levers { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .lever { opacity: 1 !important; transform: none !important; padding: 8px; gap: 3px; break-inside: avoid; border-radius: 4px; }
  .lever h3 { font-size: 11px; } .lever-v { font-size: 15px; } .lever-why, .lever-q { font-size: 9px; } .lever-q { padding-top: 4px; }
  .lever-meter { display: none; }
  .how-pop { position: static !important; display: block !important; opacity: 1 !important; transform: none !important; box-shadow: none; padding: 0; border: 0; background: none; font-size: 8.5px; color: #333; }
  .how-pop code { font-size: 8px; padding: 3px 4px; margin: 2px 0; background: #f5f5f5; border-color: #ddd; color: #111; }
  .how-pop ul, .how-pop .more { display: none; }
  .grid2 { grid-template-columns: 1.3fr 1fr; gap: 6px; margin-top: 8px; break-inside: avoid; }
  .panel { padding: 2px 8px 8px; border-radius: 4px; break-inside: avoid; }
  .panel .sec { margin-top: 6px; }
  .models { gap: 5px; } .m-top { font-size: 9.5px; } .m-track { height: 6px; margin-top: 2px; }
  .models li:nth-child(n+9) { display: none; }
  .m-bar, .split i, .trend i { transition: none !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .split i { transform: none !important; }
  .results > .fine { font-size: 9px; margin-top: 6px; }
  .m-bar i, .sw, .split i, .trend i { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .split { height: 14px; margin-top: 4px; } .legend, .split-legend { font-size: 8.5px; margin: 3px 0 6px; }
  .trend { height: 60px; } .trend-axis, .trend-note { font-size: 8px; }
  details.prices { display: none; }
  .cta { margin-top: 8px; padding: 8px 10px; display: block; border-radius: 4px; break-inside: avoid; }
  .cta h2 { font-size: 11px; margin-bottom: 2px; } .cta p { font-size: 9px; max-width: none; }
  .cta .fine { margin-top: 4px; }
  .badge { font-size: 7px; padding: 1px 3px; }
}