/* Sana on Lavaka: the shared look of all three versions. Tokens, type, header, buttons and footer are SAMAR's own
   (samar.lavaka.net), so Sana and SAMAR read as one family: IBM Plex Sans for text, IBM Plex Mono for labels and
   figures, Unbounded only for the wordmark. */
:root{
  --paper:#F1F4F7; --panel:#FFFFFF; --panel-2:#E6EBF1; --ok:#1F7A55; --warn:#9A6500; --bad:#B3261E;
  --ink:#0C1424; --ink-soft:#4A5669; --ink-faint:#8691A3; --rule:#D3DAE3;
  --accent:#1E3FD0; --ember:#D9501A;
  --band:#0C1424; --band-2:#111B30; --band-ink:#E8EDF4; --band-soft:#A6B1C2; --band-rule:#26324A; --band-accent:#93A7FF; --band-ember:#FF7B3D;
  --grid:rgba(12,20,36,.05); --header-bg:rgba(241,244,247,.82);
  --shadow:0 1px 0 rgba(12,20,36,.04), 0 18px 40px -24px rgba(12,20,36,.35);
  --ok-soft:rgba(31,122,85,.10); --warn-soft:rgba(154,101,0,.10); --bad-soft:rgba(179,38,30,.09); --accent-soft:rgba(30,63,208,.08);
  --f-brand:"Unbounded","Segoe UI",system-ui,sans-serif;
  --f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --s-label:.72rem; --s-h2:clamp(1.75rem,1.2rem + 2.2vw,2.75rem);
  --gutter:clamp(16px,4vw,40px); --maxw:1200px; --radius:14px; --hdr:64px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#070B13; --panel:#0E1420; --panel-2:#121A28; --ok:#5FD0A0; --warn:#F2C14E; --bad:#FF8A80;
    --ink:#E6EBF2; --ink-soft:#A2ADBE; --ink-faint:#687387; --rule:#212B3D;
    --accent:#8EA3FF; --ember:#FF7A3C;
    --band:#05080F; --band-2:#0C1321; --band-ink:#E8EDF4; --band-soft:#A6B1C2; --band-rule:#232E44; --band-accent:#93A7FF; --band-ember:#FF7B3D;
    --grid:rgba(230,235,242,.045); --header-bg:rgba(7,11,19,.78);
    --shadow:0 1px 0 rgba(0,0,0,.3), 0 18px 44px -24px rgba(0,0,0,.9);
    --ok-soft:rgba(95,208,160,.12); --warn-soft:rgba(242,193,78,.12); --bad-soft:rgba(255,138,128,.12); --accent-soft:rgba(142,163,255,.12);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --paper:#070B13; --panel:#0E1420; --panel-2:#121A28; --ok:#5FD0A0; --warn:#F2C14E; --bad:#FF8A80;
  --ink:#E6EBF2; --ink-soft:#A2ADBE; --ink-faint:#687387; --rule:#212B3D;
  --accent:#8EA3FF; --ember:#FF7A3C;
  --band:#05080F; --band-2:#0C1321; --band-ink:#E8EDF4; --band-soft:#A6B1C2; --band-rule:#232E44; --band-accent:#93A7FF; --band-ember:#FF7B3D;
  --grid:rgba(230,235,242,.045); --header-bg:rgba(7,11,19,.78);
  --shadow:0 1px 0 rgba(0,0,0,.3), 0 18px 44px -24px rgba(0,0,0,.9);
  --ok-soft:rgba(95,208,160,.12); --warn-soft:rgba(242,193,78,.12); --bad-soft:rgba(255,138,128,.12); --accent-soft:rgba(142,163,255,.12);
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--hdr) + 12px)}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:1rem;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:clip;transition:background-color .3s,color .3s}
h1,h2,h3,p{margin:0}
h1,h2,h3{text-wrap:balance}
img{max-width:100%;display:block}
a{color:inherit}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-left:max(var(--gutter),env(safe-area-inset-left,0px));padding-right:max(var(--gutter),env(safe-area-inset-right,0px))}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font:500 var(--s-label)/1 var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
h2{font:600 var(--s-h2)/1.15 var(--f-body);letter-spacing:-.02em;max-width:24ch}
.lead{font-size:1.1875rem;line-height:1.6;color:var(--ink-soft);max-width:40rem}
.mono{font-family:var(--f-mono)}
.section{padding-block:clamp(64px,9vw,112px)}
.section + .section{border-top:1px solid var(--rule)}
.section-head{display:grid;gap:16px;margin-bottom:clamp(28px,4vw,48px)}
.btn{display:inline-flex;align-items:center;gap:.6em;font:500 .95rem/1 var(--f-body);padding:.95em 1.3em;border-radius:999px;border:1px solid transparent;text-decoration:none;cursor:pointer;transition:background-color .25s,color .25s,border-color .25s;white-space:nowrap}
.btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .25s}
.btn:hover svg{transform:translateX(3px)}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--accent);color:var(--paper)}
.btn-ghost{border-color:var(--rule);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--ink)}
.icon-btn{width:40px;height:40px;display:inline-grid;place-items:center;border-radius:999px;border:1px solid var(--rule);background:transparent;color:var(--ink);cursor:pointer;transition:border-color .2s}
.icon-btn:hover{border-color:var(--ink)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.chip{display:inline-flex;align-items:center;gap:6px;font:500 .7rem/1 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;padding:.5em .8em;border-radius:999px;border:1px solid var(--rule);color:var(--ink-soft);background:var(--panel)}
.chip.testbed{color:var(--ember);border-color:color-mix(in srgb,var(--ember) 45%,transparent);background:transparent}

/* header */
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--header-bg);-webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--rule)}
.header-row{display:flex;align-items:center;gap:20px;height:var(--hdr)}
.brand{display:inline-flex;align-items:baseline;gap:12px;color:var(--ink);text-decoration:none;min-width:0}
.brand-word{font:600 1.05rem/1 var(--f-brand);letter-spacing:.18em}
.brand-sub{font:500 .94rem/1 var(--f-body);color:var(--ink-soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media (max-width:1180px){.brand-sub{display:none}}
.nav{display:flex;gap:26px;margin-left:auto}
.nav a{position:relative;color:var(--ink-soft);text-decoration:none;font-size:.94rem;padding-block:6px;transition:color .2s;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav a:hover{color:var(--ink)}
.nav a:hover::after{transform:scaleX(1)}
.btn-login{padding:.7em 1.1em;font-size:.9rem}
#theme-toggle .i-sun{display:none}
#theme-toggle[data-mode="dark"] .i-sun{display:block}
#theme-toggle[data-mode="dark"] .i-moon{display:none}
@media (max-width:820px){.nav{display:none}#theme-toggle{margin-left:auto}}

/* footer */
.site-footer{border-top:1px solid var(--rule);padding-block:36px 28px}
.footer-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 32px;font:500 .74rem/1.5 var(--f-mono);letter-spacing:.06em;color:var(--ink-faint)}
.footer-row a{color:var(--ink-soft);text-decoration:none}
.footer-row a:hover{color:var(--ink)}

/* the verdict, Sana's own three words */
.verdict{border:1px solid var(--rule);border-radius:10px;padding:16px 18px;background:var(--panel)}
.verdict .v-label{font:500 .72rem/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase}
.verdict.ok{border-color:color-mix(in srgb,var(--ok) 45%,transparent);background:var(--ok-soft)} .verdict.ok .v-label{color:var(--ok)}
.verdict.care{border-color:color-mix(in srgb,var(--warn) 45%,transparent);background:var(--warn-soft)} .verdict.care .v-label{color:var(--warn)}
.verdict.no{border-color:color-mix(in srgb,var(--bad) 45%,transparent);background:var(--bad-soft)} .verdict.no .v-label{color:var(--bad)}
.verdict p{margin-top:8px;font-size:.95rem;line-height:1.55}

/* the AI payload, as Sana sends it */
.payload{font:400 .8rem/1.6 var(--f-mono);background:var(--band);color:var(--band-ink);border-radius:10px;padding:16px 18px;overflow-x:auto;white-space:pre;border:1px solid var(--band-rule)}
.payload .k{color:var(--band-accent)} .payload .h{color:var(--band-ember)} .payload .c{color:var(--band-soft)}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}

body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--header-bg)}