/* LLM Rate Card — a utility rate card: calculator first, ledger second. */
@font-face{font-family:"Bricolage Grotesque";font-weight:600;font-display:swap;src:url(fonts/bricolage-grotesque-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Bricolage Grotesque";font-weight:800;font-display:swap;src:url(fonts/bricolage-grotesque-latin-800-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";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-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-weight:600;font-display:swap;src:url(fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";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-weight:500;font-display:swap;src:url(fonts/ibm-plex-mono-latin-500-normal.woff2) format("woff2")}

:root{
  --bg:#F3F6F7; --surface:#FFFFFF; --fg:#13212B; --muted:#566773; --line:#D5DDE2;
  --accent:#0E6B6B; --accent-ink:#FFFFFF; --accent-soft:#DCEFEE; --best:#946205; --best-soft:#FBF0D9;
  --f-display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --f-body:"IBM Plex Sans","Segoe UI",system-ui,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0E161C; --surface:#152129; --fg:#E4ECF0; --muted:#93A5B1; --line:#26363F;
  --accent:#4FC2BE; --accent-ink:#0E161C; --accent-soft:#16383A; --best:#E7B04A; --best-soft:#3A2D12;
  color-scheme:dark}}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--f-body);font-size:16px;line-height:1.6;padding-inline:16px}
a{color:var(--accent)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1080px;margin:0 auto}
main.wrap{display:grid;gap:48px;padding-block:32px 64px}
main>section{display:grid;gap:16px;min-width:0}

.site-header{border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;padding-block:14px}
.logo{font-family:var(--f-display);font-weight:800;font-size:22px;letter-spacing:-.02em;color:var(--fg);text-decoration:none}
.logo span{color:var(--accent)}
.site-header nav{display:flex;flex-wrap:wrap;gap:6px 20px;font-size:15px}
.site-header nav a{color:var(--muted);text-decoration:none}
.site-header nav a:hover{color:var(--fg)}

h1{font-family:var(--f-display);font-weight:800;font-size:clamp(30px,5vw,46px);line-height:1.08;letter-spacing:-.025em;margin:0;text-wrap:balance;max-width:22ch}
h2{font-family:var(--f-display);font-weight:600;font-size:24px;line-height:1.2;margin:0;letter-spacing:-.01em;text-wrap:balance}
h3{font-size:17px;margin:0}
p{margin:0}
.lede{color:var(--muted);max-width:62ch;font-size:17px}
.prose{display:grid;gap:14px;max-width:68ch}
.prose h2{margin-top:16px}
.prose ul{margin:0;padding-left:20px;display:grid;gap:6px}
.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600}
.meta{font-size:13px;color:var(--muted)}
.head{display:grid;gap:12px}

/* calculator */
.calc{display:grid;grid-template-columns:minmax(0,330px) minmax(0,1fr);gap:24px;align-items:start}
@media (max-width:780px){.calc{grid-template-columns:1fr}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:20px;display:grid;gap:16px;min-width:0}
.presets{display:flex;flex-wrap:wrap;gap:8px}
.chip{font:inherit;font-size:14px;border:1px solid var(--line);background:transparent;color:var(--fg);padding:5px 12px;border-radius:999px;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
label{display:grid;gap:4px;font-size:14px;color:var(--muted)}
input[type=number]{font:inherit;font-family:var(--f-mono);font-size:16px;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:8px 10px;width:100%}
.hint{font-size:13px;color:var(--muted)}
.results{display:grid;gap:8px}
.row{display:grid;grid-template-columns:minmax(0,170px) minmax(0,1fr) auto;gap:12px;align-items:center;font-size:14px}
.row .name{min-width:0}
.row .name a{color:var(--fg);text-decoration:none}
.row .name a:hover{text-decoration:underline}
.row .prov{color:var(--muted);font-size:12px}
.bar{height:10px;background:var(--line);border-radius:3px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--accent);border-radius:3px;transition:width .3s}
.row.best .bar i{background:var(--best)}
.cost{font-family:var(--f-mono);font-variant-numeric:tabular-nums;text-align:right;min-width:96px}
.tag{font-size:11px;background:var(--best-soft);color:var(--best);padding:1px 7px;border-radius:999px;margin-left:6px;font-weight:600}
.summary{display:flex;flex-wrap:wrap;gap:6px 20px;font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}
.summary b{color:var(--fg);font-family:var(--f-mono);font-weight:500}

/* tables */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:14px}
table.wide{min-width:880px}
table.mid{min-width:480px}
th,td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
tbody tr:last-child td{border-bottom:none}
th{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600;background:var(--bg);white-space:nowrap}
th button{all:unset;cursor:pointer}
th button::after{content:" ↕";opacity:.5}
th button:focus-visible{outline:2px solid var(--accent)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
td.num{font-family:var(--f-mono)}
td.note{font-size:13px;color:var(--muted);max-width:240px}
td a{color:var(--fg)}
.dash{color:var(--muted)}
tr.hl td{background:var(--best-soft)}

/* fact grid on model pages */
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden}
@media (max-width:640px){.facts{grid-template-columns:repeat(2,minmax(0,1fr))}}
.fact{background:var(--surface);padding:16px;display:grid;gap:2px}
.fact b{font-family:var(--f-mono);font-weight:500;font-size:22px;font-variant-numeric:tabular-nums}
.fact span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.callout{background:var(--best-soft);color:var(--fg);border-radius:8px;padding:12px 16px;font-size:15px;max-width:68ch}

.links{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:8px 24px;padding:0;margin:0;list-style:none}
.links a{text-decoration:none}
.links a:hover{text-decoration:underline}

.site-footer{border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;padding-block:20px 32px}
.site-footer nav{display:flex;flex-wrap:wrap;gap:6px 18px}
.site-footer a{color:var(--muted)}

@media (prefers-reduced-motion:reduce){.bar i{transition:none}}