/* Card Ink — marketing site draft. System fonts only; no external requests. */
:root{
  --bg:#131920; --bg-2:#1B232D; --raised:#212B37; --slate:#7C8693; --slate-hi:#8A94A1;
  --line:#2C3743; --text:#EAF0F6; --muted:#94A2B1;
  --accent:#8EC3EE; --accent-ink:#0D2132;
  --paper:#F7F3E8; --paper-2:#F2ECDF; --paper-edge:#D9D1BF; --paper-text:#20251f; --paper-muted:#697066;
  --ink:#2257B8; --ink-dot:#3B7BF2;
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --serif:"New York","Iowan Old Style",Georgia,"Times New Roman",serif;
  --radius:20px; --max:1080px;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--text);background:var(--bg);line-height:1.55;font-size:17px}
img{max-width:100%;display:block}
a{color:var(--accent);text-underline-offset:3px}
a:focus-visible,button:focus-visible,.store-btn:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:8px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--accent-ink);padding:8px 12px;border-radius:8px;z-index:10}
.skip:focus{left:8px}

/* Draft ribbon */
.draft-bar{background:#3a2f12;color:#F3DFA6;font-size:13px;text-align:center;padding:8px 16px;border-bottom:1px solid #5a4a1c}
.draft-bar strong{letter-spacing:.06em;text-transform:uppercase;font-size:12px;margin-right:6px}

/* Header */
.site-header{padding:16px 0}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:600;font-size:20px;letter-spacing:-.4px}
.brand img{width:34px;height:34px;border-radius:8px}
.brand em{font-family:var(--serif);font-style:italic;font-weight:normal;color:var(--accent);font-size:1.08em}
.nav{display:flex;gap:18px;font-size:15px}
.nav a{color:var(--muted);text-decoration:none;padding:10px 0}
.nav a:hover,.nav a[aria-current=page]{color:var(--text)}

/* Hero */
.hero{background:linear-gradient(180deg,var(--slate-hi) 0%,#6E7886 100%);color:#fff;overflow:hidden}
.hero .wrap{display:grid;gap:36px;padding-top:40px;padding-bottom:48px}
.hero-icon{width:112px;height:112px;border-radius:25px;box-shadow:0 14px 30px rgba(10,15,25,.35),0 0 0 1px rgba(255,255,255,.12)}
.hero h1{font-size:44px;line-height:1.05;letter-spacing:-1.2px;margin:22px 0 8px;font-weight:700}
.hero .subtitle{font-family:var(--serif);font-style:italic;font-size:24px;margin:0 0 18px;color:#F7F3E8}
.hero .lede{font-size:18px;max-width:34em;margin:0 0 26px;color:#EEF2F6}
.store-btn{display:inline-flex;align-items:center;gap:12px;background:#0d1117;color:#fff;border:1px dashed rgba(255,255,255,.55);border-radius:14px;padding:12px 20px;min-height:56px;text-decoration:none;cursor:not-allowed}
.store-btn .apple-ph{width:26px;height:26px;border-radius:6px;border:1.5px dashed rgba(255,255,255,.6);flex:none}
.store-btn small{display:block;font-size:11px;letter-spacing:.04em;opacity:.8}
.store-btn span span{font-size:18px;font-weight:600;letter-spacing:-.2px}
.ph-note{display:block;margin-top:10px;font-size:13px;color:#E6EBF0;opacity:.85}
.platform{font-size:14px;margin-top:18px;color:#E6EBF0}

/* Flashcard mock (matches beta .card) */
.mock-stage{position:relative;max-width:330px;width:100%;margin:0 auto;padding:10px 0 4px}
.mock-back{position:absolute;inset:34px 30px -6px -6px;background:var(--paper-2);border-radius:22px;transform:rotate(-6deg);box-shadow:0 4px 0 var(--paper-edge),0 16px 30px rgba(10,15,25,.28)}
.card{position:relative;background:var(--paper);color:var(--paper-text);border-radius:22px;aspect-ratio:5/6;box-shadow:0 4px 0 var(--paper-edge),0 18px 40px rgba(10,15,25,.35);overflow:hidden;transform:rotate(2deg)}
.card-meta{position:absolute;top:22px;left:22px;right:22px;display:flex;justify-content:space-between;gap:10px;font-size:11.5px;letter-spacing:1.2px;text-transform:uppercase;color:var(--paper-muted)}
.card-text{position:absolute;top:62px;left:22px;right:22px;font-family:var(--serif);font-size:25px;line-height:1.3}
.card-ink{position:absolute;left:0;right:0;bottom:56px;width:100%;height:46%}
.card-ink .ink-body{fill:#2445a8;fill-opacity:.87;stroke:none}
.card-ink .ink-groove{fill:none;stroke:#1a3290;stroke-opacity:.35;stroke-width:.5;stroke-linecap:round;stroke-linejoin:round}
.card-hint{position:absolute;bottom:18px;left:16px;right:16px;text-align:center;font-size:12.5px;color:#70766c}
.pen-btn{position:absolute;right:-6px;bottom:-14px;width:54px;height:54px;border-radius:50%;background:var(--raised);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 18px rgba(0,0,0,.35);z-index:2}
.pen-btn svg{width:24px;height:24px;stroke:var(--accent);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.pen-btn::after{content:"";position:absolute;top:8px;left:8px;width:9px;height:9px;border-radius:50%;background:var(--ink-dot);box-shadow:0 0 0 2px var(--raised)}

/* Sections */
section{padding:56px 0}
.eyebrow{font-size:13px;letter-spacing:1.6px;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
h2{font-size:30px;letter-spacing:-.6px;line-height:1.15;margin:0 0 14px}
.intro{color:var(--muted);max-width:36em;margin:0 0 30px}
.features{display:grid;gap:16px}
.feature{background:var(--bg-2);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:22px;box-shadow:inset 0 1px 0 rgba(255,255,255,.04),0 10px 24px rgba(0,0,0,.3)}
.feature h3{font-size:20px;letter-spacing:-.2px;margin:12px 0 6px}
.feature p{margin:0;color:var(--muted);font-size:16px}
.f-icon svg{width:30px;height:30px;fill:none;stroke:var(--accent);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;display:block}

/* Deck groups */
.groups{display:grid;gap:12px;margin-top:6px}
.group{display:flex;gap:14px;align-items:flex-start;background:var(--bg-2);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:16px 18px}
.group .f-icon{flex:none;margin-top:2px}
.group strong{display:block;font-size:18px}
.group span{color:var(--muted);font-size:15px}
.note{font-size:13px;color:var(--muted);margin-top:14px}

/* Civics mini card */
.duo{display:grid;gap:28px;align-items:center}
.mini-card{background:var(--paper);color:var(--paper-text);border-radius:20px;padding:20px 22px 24px;box-shadow:0 4px 0 var(--paper-edge),0 14px 30px rgba(0,0,0,.35);max-width:380px;width:100%;margin:0 auto}
.seg{display:inline-flex;border:1px solid #cfc7b6;border-radius:999px;padding:3px;font-size:13px;font-family:var(--sans);margin-bottom:16px}
.seg span{padding:5px 12px;border-radius:999px;color:var(--paper-muted)}
.seg span.on{background:#1B232D;color:#EAF0F6}
.mini-card p{font-family:var(--serif);font-size:21px;line-height:1.3;margin:0}
.mini-card p + p{font-size:17px;color:var(--paper-muted);margin-top:10px}

/* Privacy strip */
.privacy-strip{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.checks{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.checks li{padding-left:30px;position:relative}
.checks li::before{content:"";position:absolute;left:4px;top:.45em;width:12px;height:7px;border-left:2.5px solid var(--accent);border-bottom:2.5px solid var(--accent);transform:rotate(-45deg)}

/* Prose pages */
.page-head{background:linear-gradient(180deg,var(--slate-hi),#6E7886);color:#fff;padding:36px 0 32px}
.page-head h1{margin:0 0 6px;font-size:36px;letter-spacing:-.8px}
.page-head p{margin:0;color:#EEF2F6}
.prose{max-width:720px;padding-top:36px;padding-bottom:56px}
.prose h2{font-size:24px;margin:38px 0 10px}
.prose h3{font-size:18px;margin:26px 0 6px}
.prose p,.prose li{color:#D3DCE5}
.prose ul{padding-left:22px}
.prose li{margin:6px 0}
.paper{background:var(--paper);color:var(--paper-text);border-radius:18px;padding:20px 22px;box-shadow:0 4px 0 var(--paper-edge)}
.paper p{color:var(--paper-text);margin:0}
.paper a{color:var(--ink)}
.draft-note{border:1px dashed #C9A94A;background:rgba(201,169,74,.1);color:#F3DFA6;border-radius:12px;padding:12px 14px;font-size:14px;margin:14px 0}
.draft-note strong{color:#F8E7B5}
.prose .draft-note p{color:#F3DFA6;margin:0}
details{background:var(--bg-2);border:1px solid var(--line);border-radius:14px;padding:4px 16px;margin:10px 0}
summary{cursor:pointer;font-weight:600;padding:12px 0;min-height:44px}
details p{margin:0 0 14px}

/* Footer */
.site-footer{border-top:1px solid var(--line);padding:30px 0 40px;font-size:14px;color:var(--muted)}
.site-footer nav{display:flex;gap:20px;margin-bottom:14px}
.site-footer nav a{color:var(--text);text-decoration:none;padding:8px 0}
.site-footer p{margin:6px 0;max-width:46em}

/* Larger screens */
@media (min-width:720px){
  .features{grid-template-columns:1fr 1fr}
  .groups{grid-template-columns:1fr 1fr}
  .hero h1{font-size:56px}
}
@media (min-width:960px){.mock-stage{max-width:360px}.card{aspect-ratio:3/4}}
@media (min-width:960px){
  .hero .wrap{grid-template-columns:1.1fr .9fr;align-items:center;padding-top:64px;padding-bottom:72px}
  .features{grid-template-columns:repeat(3,1fr)}
  .duo{grid-template-columns:1fr 1fr}
  section{padding:72px 0}
}
@media (max-width:380px){
  .nav{gap:12px;font-size:14px}
  .hero h1{font-size:38px}
}
@media (prefers-reduced-motion:no-preference){
  .card{transition:transform .4s cubic-bezier(.2,.7,.2,1)}
  .mock-stage:hover .card{transform:rotate(0deg)}
}