/* ═══════════════════════════════════════════════════════════════════
   FeedOracle Design System v1 — "Ledger"
   Website redesign staging R1 · 2026-08-17 · NOT DEPLOYED
   Light, institutional, evidence-first. No JavaScript required.
   Brand hues carried over from the live site: teal #10B898,
   blue #2F80ED, ink #0B1220. Text-bearing variants darkened
   to clear WCAG AA on light grounds.
   Fonts served locally from ./fonts/ — no external request anywhere.
   ═══════════════════════════════════════════════════════════════════ */

@font-face{font-family:'DM Sans';src:url('fonts/dm-sans-latin.woff2') format('woff2');font-weight:400 700;font-display:swap;font-style:normal}
@font-face{font-family:'Outfit';src:url('fonts/outfit-latin.woff2') format('woff2');font-weight:300 700;font-display:swap;font-style:normal}
@font-face{font-family:'JetBrains Mono';src:url('fonts/jbmono-latin.woff2') format('woff2');font-weight:400 700;font-display:swap;font-style:normal}

:root{
  /* ink scale */
  --ink:#0B1220;
  --ink-2:#26364A;
  --ink-3:#51647C;
  --ink-4:#5D7089; /* AA on --ground and --paper at small sizes */
  /* grounds */
  --ground:#FDFEFE;
  --paper:#F5F8FA;
  --paper-2:#EDF2F6;
  --panel-dark:#0B1220;
  /* rules */
  --line:#DCE4EC;
  --line-strong:#C3CFDB;
  --line-hair:#E8EEF3;
  /* brand */
  --teal:#10B898;
  --teal-text:#0A6E5C;
  --teal-deep:#095F50;
  --teal-soft:#E6F7F3;
  --teal-edge:#BEE7DE;
  --blue:#2F80ED;
  --blue-text:#1B5FB8;
  --blue-soft:#EAF2FE;
  --blue-edge:#C3DCFB;
  --amber-text:#7A5200;
  --amber-soft:#FDF3E0;
  --amber-edge:#F0DDB8;
  --slate-text:#4A5C72;
  --slate-soft:#EEF1F5;
  /* type */
  --font-display:'Outfit',system-ui,-apple-system,sans-serif;
  --font-body:'DM Sans',system-ui,-apple-system,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,'SFMono-Regular',Menlo,monospace;
  /* geometry */
  --radius:12px;
  --radius-sm:8px;
  --max-w:1140px;
  --gutter:24px;
}

/* ── Base ─────────────────────────────────────────────────── */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ground);color:var(--ink-2);
  font-family:var(--font-body);font-size:17px;line-height:1.65;
  overflow-wrap:break-word;
}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--ink);line-height:1.16;margin:0 0 .5em;font-weight:500;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,5vw,3.6rem);font-weight:400}
h1 strong,h1 b{font-weight:600}
h2{font-size:clamp(1.45rem,3.1vw,2.15rem)}
h3{font-size:1.1rem;font-weight:600;letter-spacing:-.005em}
.h-sm{font-size:1.02rem;font-weight:600;letter-spacing:0}
p{margin:0 0 1rem}
a{color:var(--blue-text);text-underline-offset:3px}
a:focus-visible,summary:focus-visible,.btn:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:4px}
code{font-family:var(--font-mono);font-size:.86em;background:var(--paper-2);border:1px solid var(--line-hair);border-radius:4px;padding:1px 5px}
.wrap{max-width:var(--max-w);margin:0 auto;padding:0 var(--gutter)}
section{padding:72px 0;border-top:1px solid var(--line)}
section.flush{border-top:0}
.section-intro{max-width:66ch;color:var(--ink-2);font-size:1.02rem}

/* mono micro-label with ledger number: <p class="ledger-no">01 · Problem</p> */
.ledger-no{
  font-family:var(--font-mono);font-size:.72rem;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--teal-text);margin:0 0 14px;
  display:flex;align-items:center;gap:14px;
}
.ledger-no::after{content:"";flex:1;max-width:64px;height:1px;background:var(--teal-edge)}

/* ── Header / navigation (no JavaScript; <details> on mobile) ─ */
.site-head{
  position:sticky;top:0;z-index:50;background:rgba(253,254,254,.94);
  border-bottom:1px solid var(--line);backdrop-filter:blur(10px);
}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand img{width:30px;height:30px;display:block}
.brand .wm{font-family:var(--font-display);font-weight:300;font-size:1.28rem;letter-spacing:-.02em;color:var(--ink)}
.brand .wm b{font-weight:300;color:var(--teal-text)}
.nav-desk{display:flex;align-items:center;gap:26px}
.nav-desk a{font-size:.92rem;font-weight:500;color:var(--ink-2);text-decoration:none}
.nav-desk a:hover{color:var(--teal-text)}
.nav-desk a[aria-current="page"]{color:var(--teal-text)}
.nav-desk .nav-cta{
  border:1px solid var(--ink);border-radius:var(--radius-sm);padding:8px 16px;color:var(--ink);
}
.nav-desk .nav-cta:hover{background:var(--ink);color:#fff}
.nav-mob{display:none;position:relative}
.nav-mob summary{
  list-style:none;cursor:pointer;font-family:var(--font-mono);font-size:.78rem;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;color:var(--ink);
  border:1px solid var(--line-strong);border-radius:var(--radius-sm);padding:9px 14px;
}
.nav-mob summary::-webkit-details-marker{display:none}
.nav-mob summary::before{content:"☰  ";font-size:.9rem}
.nav-mob[open] summary::before{content:"✕  "}
.nav-mob .nav-panel{
  position:absolute;right:0;top:calc(100% + 10px);min-width:230px;
  background:var(--ground);border:1px solid var(--line-strong);border-radius:var(--radius);
  box-shadow:0 14px 40px rgba(11,18,32,.14);padding:8px;z-index:60;
}
.nav-panel a{display:block;padding:11px 14px;border-radius:6px;font-size:.95rem;font-weight:500;color:var(--ink-2);text-decoration:none}
.nav-panel a:hover{background:var(--paper)}
.nav-panel a[aria-current="page"]{color:var(--teal-text)}
.staging-flag{
  display:block;background:var(--panel-dark);color:#C9D6E4;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;text-align:center;
  padding:6px var(--gutter);
}
.staging-flag b{color:var(--teal)}

/* ── Buttons ─────────────────────────────────────────────── */
.btn{
  display:inline-block;font-family:var(--font-body);font-weight:600;font-size:.98rem;
  padding:13px 26px;border-radius:var(--radius-sm);text-decoration:none;
  border:1px solid transparent;line-height:1.35;
}
.btn-primary{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-primary:hover{background:#182741}
.btn-secondary{background:var(--ground);color:var(--ink);border-color:var(--line-strong)}
.btn-secondary:hover{border-color:var(--ink-3);background:var(--paper)}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ── Hero ────────────────────────────────────────────────── */
.hero{
  border-top:0;padding:84px 0 72px;
  background:
    linear-gradient(180deg,rgba(245,248,250,0) 55%,var(--ground) 100%),
    linear-gradient(90deg,var(--line-hair) 1px,transparent 1px),
    linear-gradient(180deg,var(--line-hair) 1px,transparent 1px),
    var(--paper);
  background-size:auto,44px 44px,44px 44px,auto;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.eyebrow{
  display:inline-block;font-family:var(--font-mono);font-size:.72rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--teal-text);
  background:var(--teal-soft);border:1px solid var(--teal-edge);border-radius:999px;
  padding:6px 14px;margin-bottom:22px;
}
.hero p.lead{font-size:clamp(1.05rem,1.9vw,1.22rem);color:var(--ink-2);max-width:58ch}
.audience{
  font-size:.94rem;color:var(--ink-3);border-left:3px solid var(--teal-text);
  padding-left:14px;margin:24px 0 0;max-width:58ch;
}
.hero-meta{margin-top:24px;font-family:var(--font-mono);font-size:.76rem;color:var(--ink-3);line-height:2}
.hero-meta span+span::before{content:"·";margin:0 10px;color:var(--line-strong)}

/* ── Evidence record card (the signature component) ──────── */
.record{
  background:var(--ground);border:1px solid var(--line-strong);border-radius:var(--radius);
  overflow:hidden;box-shadow:0 18px 50px rgba(11,18,32,.09);
}
.record-head{
  background:var(--panel-dark);color:#C9D6E4;padding:12px 18px;
  font-family:var(--font-mono);font-size:.74rem;line-height:1.8;
  display:flex;flex-wrap:wrap;gap:2px 14px;align-items:baseline;
}
.record-head .m{color:var(--teal);font-weight:600}
.record-head .u{word-break:break-all}
.record-rows{margin:0;padding:0;list-style:none}
.record-rows li{
  display:flex;flex-wrap:wrap;gap:6px 16px;align-items:baseline;justify-content:space-between;
  padding:12px 18px;border-top:1px solid var(--line-hair);font-size:.85rem;
}
.record-rows li:first-child{border-top:0}
.record-rows .k{font-family:var(--font-display);font-weight:600;color:var(--ink);font-size:.85rem}
.record-rows .v{font-family:var(--font-mono);font-size:.76rem;color:var(--ink-3);overflow-wrap:anywhere;text-align:right;flex:1 1 auto}
.record-foot{
  border-top:1px solid var(--line);background:var(--paper);padding:10px 18px;
  font-family:var(--font-mono);font-size:.7rem;color:var(--ink-4);line-height:1.8;overflow-wrap:anywhere;
}

/* ── Evidence state pills (vocabulary, not verdicts) ─────── */
.pill{
  display:inline-block;font-family:var(--font-mono);font-size:.66rem;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:5px;white-space:nowrap;
}
.pill-found{background:var(--teal-soft);color:var(--teal-text);border:1px solid var(--teal-edge)}
.pill-gap{background:var(--amber-soft);color:var(--amber-text);border:1px solid var(--amber-edge)}
.pill-review{background:var(--blue-soft);color:var(--blue-text);border:1px solid var(--blue-edge)}
.pill-neutral{background:var(--slate-soft);color:var(--slate-text);border:1px solid var(--line-strong)}

/* ── Cards & grids ───────────────────────────────────────── */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:var(--ground);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.card.tinted{background:var(--paper)}
.card h3{margin-bottom:.4em}
.card p:last-child{margin-bottom:0}
.card .num{font-family:var(--font-mono);font-size:.7rem;font-weight:600;letter-spacing:.12em;color:var(--ink-4);display:block;margin-bottom:12px}
.kv{font-family:var(--font-mono);font-size:.76rem;color:var(--ink-3);margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.kv b{color:var(--ink-2);font-weight:600}

/* step flow (product walk-through) */
.flow{counter-reset:step;display:grid;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.flow-step{
  counter-increment:step;display:grid;grid-template-columns:64px 1fr;gap:0;
  border-top:1px solid var(--line);background:var(--ground);
}
.flow-step:first-child{border-top:0}
.flow-step .no{
  display:flex;align-items:flex-start;justify-content:center;padding:24px 0;
  background:var(--paper);border-right:1px solid var(--line);
  font-family:var(--font-mono);font-weight:600;font-size:.82rem;color:var(--teal-text);
}
.flow-step .no::before{content:counter(step,decimal-leading-zero)}
.flow-step .body{padding:22px 26px}
.flow-step .body p:last-child{margin-bottom:0}
.flow-step h3{margin-bottom:.3em}

/* ── Callouts ────────────────────────────────────────────── */
.callout{border-left:4px solid var(--blue);background:var(--blue-soft);padding:18px 20px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:26px 0}
.callout.warn{border-left-color:#D89B2C;background:var(--amber-soft)}
.callout.teal{border-left-color:var(--teal);background:var(--teal-soft)}
.callout .h-sm{margin-bottom:.4em;color:var(--ink)}
.callout p{margin-bottom:.5rem;font-size:.93rem}
.callout p:last-child{margin-bottom:0}

/* ── Evidence table (product page) ───────────────────────── */
.evidence-shell{border:1px solid var(--line-strong);border-radius:var(--radius);overflow:hidden;background:var(--ground)}
.evidence-head{
  background:var(--panel-dark);color:#C9D6E4;padding:14px 20px;
  font-family:var(--font-mono);font-size:.76rem;
  display:flex;flex-wrap:wrap;gap:6px 18px;align-items:baseline;
}
.evidence-head .m{color:var(--teal);font-weight:600}
.evidence-head .u{word-break:break-all}
.ev-table{width:100%;border-collapse:collapse}
.ev-table th,.ev-table td{text-align:left;padding:15px 20px;border-bottom:1px solid var(--line);vertical-align:top;font-size:.92rem}
.ev-table th{width:30%;color:var(--ink);font-weight:600;font-family:var(--font-display);font-size:.9rem}
.ev-table tr:last-child th,.ev-table tr:last-child td{border-bottom:0}
.ev-table .val{font-family:var(--font-mono);font-size:.8rem;color:var(--ink-2);overflow-wrap:anywhere}
.ev-table .src{display:block;margin-top:6px;font-size:.76rem;color:var(--ink-3);font-family:var(--font-body)}
.table-scroll{overflow-x:auto}

/* ── Collapsible raw response (native <details>, no JS) ──── */
.raw-toggle{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--paper);margin-top:24px}
.raw-toggle summary{cursor:pointer;padding:14px 20px;font-family:var(--font-mono);font-size:.82rem;color:var(--ink-2);font-weight:600;list-style:none}
.raw-toggle summary::-webkit-details-marker{display:none}
.raw-toggle summary::before{content:"▸ ";color:var(--teal-text)}
.raw-toggle[open] summary::before{content:"▾ "}
.raw-toggle summary:hover{color:var(--ink)}
.raw-toggle .raw-body{padding:0 20px 20px}
pre.raw{
  background:var(--panel-dark);color:#DCE6F0;font-family:var(--font-mono);font-size:.74rem;line-height:1.75;
  padding:20px;border-radius:var(--radius-sm);white-space:pre-wrap;overflow-wrap:anywhere;margin:0;
}
.raw-caption{font-family:var(--font-mono);font-size:.74rem;color:var(--ink-3);margin:10px 0 0;line-height:1.8;overflow-wrap:anywhere}

/* ── Access split ────────────────────────────────────────── */
.access{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
ul.tick{list-style:none;padding:0;margin:12px 0 0}
ul.tick li{position:relative;padding-left:26px;margin-bottom:9px;font-size:.94rem}
ul.tick li::before{content:"";position:absolute;left:0;top:.55em;width:10px;height:10px;border:2px solid var(--teal-text);border-radius:2px}

/* ── Footer ──────────────────────────────────────────────── */
.site-foot{background:var(--paper);border-top:1px solid var(--line);padding:44px 0 52px;font-size:.88rem;color:var(--ink-3)}
.foot-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:36px}
.foot-nav{display:flex;flex-wrap:wrap;gap:8px 28px;margin:0 0 18px;padding:0;list-style:none}
.foot-nav a{color:var(--ink-2);text-decoration:none;font-weight:500;font-size:.9rem}
.foot-nav a:hover{color:var(--teal-text)}
.legal{font-size:.84rem;line-height:1.8;max-width:78ch}

/* ── Motion (single restrained entrance, guarded) ────────── */
@media (prefers-reduced-motion:no-preference){
  .hero .rise{animation:rise .6s cubic-bezier(.2,.7,.2,1) both}
  .hero .rise-2{animation:rise .6s .08s cubic-bezier(.2,.7,.2,1) both}
  .hero .rise-3{animation:rise .6s .16s cubic-bezier(.2,.7,.2,1) both}
  @keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width:920px){
  .hero-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:780px){
  .nav-desk{display:none}
  .nav-mob{display:block}
}
@media (max-width:640px){
  body{font-size:16px}
  section{padding:52px 0}
  .hero{padding:56px 0 48px}
  .wrap{padding:0 18px}
  .btn{display:block;text-align:center}
  .flow-step{grid-template-columns:48px 1fr}
  .flow-step .body{padding:18px 18px}
  .ev-table th,.ev-table td{display:block;width:auto;padding:12px 16px;border-bottom:0}
  .ev-table th{padding-bottom:2px}
  .ev-table td{padding-top:2px;border-bottom:1px solid var(--line)}
  .raw-toggle .raw-body{padding:0 12px 16px}
  pre.raw{padding:14px}
  .record-rows .v{text-align:left}
}