/* ============================================================================
   Vaayda — Prototype Kit (Coinbase design system, docs/DESIGN_COINBASE.md)
   Shared foundation for every proto screen. Mobile-first + responsive:
   one file renders both mobile-web (≤430px) and web (≥900px).
   Tokens mirror packages/ui/src/tokens.ts — the single source of truth.
   ============================================================================ */

:root{
  /* brand */
  --blue:#0052ff; --blue-2:#003ecc; --blue-soft:#eef4ff; --blue-line:#cfe0ff;
  /* ink ramp */
  --ink:#0a0b0d; --body:#5b616e; --muted:#7c828a; --faint:#a8acb3;
  /* surfaces */
  --canvas:#ffffff; --soft:#f7f7f7; --strong:#eef0f3; --line:#dee1e6; --line-2:#cdd0d6;
  /* dark editorial */
  --dark:#0a0b0d; --dark-2:#16181c; --dark-3:#212429; --on-dark:#ffffff; --on-dark-soft:#a8acb3;
  /* escrow-state semantics (text/dot only, never fills for green/red) */
  --held:#0052ff; --shipped:#5b616e; --delivered:#b06f00; --settled:#05b169;
  --refunded:#7c828a; --disputed:#cf202f;
  --green:#05b169; --green-soft:rgba(5,177,105,.10); --amber:#b06f00; --red:#cf202f; --red-soft:rgba(207,32,47,.09);
  /* elevation — one soft tier + a deeper lift for floating mockups */
  --sh-sm:0 1px 2px rgba(10,11,13,.04);
  --sh:0 4px 16px rgba(10,11,13,.06);
  --sh-lg:0 18px 48px -12px rgba(10,11,13,.18);
  --sh-mock:0 24px 60px -18px rgba(0,0,0,.55);
  /* radius */
  --r-xs:4px; --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:24px; --r-2xl:28px; --pill:100px;
}

/* ---- reset + base ---- */
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{margin:0;background:var(--canvas);color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  letter-spacing:-0.011em;line-height:1.5;font-size:16px;}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-0.03em;font-weight:600;line-height:1.08;}
p{margin:0;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-thumb{background:var(--line);border-radius:100px;border:3px solid transparent;background-clip:content-box;}

/* ---- type helpers ---- */
.mono{font-family:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  font-variant-numeric:tabular-nums lining-nums;letter-spacing:-0.02em;}
.display{font-weight:400;letter-spacing:-0.04em;line-height:1.02;}   /* Inter-400 editorial display */
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);}
.lede{font-size:18px;line-height:1.55;color:var(--body);font-weight:400;}
.tny{font-size:12px;color:var(--muted);}
.hi{color:var(--blue);}
.on-dark .eyebrow{color:var(--on-dark-soft);}

/* ---- layout ---- */
.wrap{max-width:1160px;margin:0 auto;padding:0 20px;}
.wrap-tight{max-width:760px;margin:0 auto;padding:0 20px;}
.band{padding:88px 0;}
.band-sm{padding:56px 0;}
.dark{background:var(--dark);color:var(--on-dark);}
.dark h1,.dark h2,.dark h3{color:#fff;}
.soft{background:var(--soft);}

/* ---- buttons ---- */
.btn{border:0;cursor:pointer;font-weight:600;font-size:15px;border-radius:var(--pill);
  padding:0 22px;height:48px;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:transform .16s cubic-bezier(.16,1,.3,1),background .16s,box-shadow .16s;white-space:nowrap;}
.btn:active{transform:translateY(1px) scale(.99);}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px -8px rgba(0,82,255,.55);}
.btn-primary:hover{background:var(--blue-2);transform:translateY(-1px);}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{background:#000;transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--ink);border:1px solid var(--line);}
.btn-light:hover{background:var(--soft);}
.btn-ghost{background:var(--strong);color:var(--ink);}
.btn-ghost:hover{background:#e4e7ec;}
.btn-on-dark{background:#fff;color:var(--ink);}
.btn-on-dark:hover{background:#f0f1f3;transform:translateY(-1px);}
.btn-outline-dark{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.28);}
.btn-outline-dark:hover{background:rgba(255,255,255,.10);}
.btn-danger{background:transparent;color:var(--red);border:1px solid rgba(207,32,47,.3);}
.btn-danger:hover{background:var(--red-soft);}
.btn-sm{height:40px;font-size:14px;padding:0 16px;}
.btn-lg{height:54px;font-size:16px;padding:0 28px;}
.btn-block{width:100%;}
.btn[disabled]{background:var(--blue-soft);color:var(--blue-line);cursor:not-allowed;box-shadow:none;}

/* ---- cards ---- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--sh-sm);}
.card-pad{padding:24px;}
.card-mock{background:var(--dark-2);border:1px solid rgba(255,255,255,.08);border-radius:var(--r-xl);
  box-shadow:var(--sh-mock);color:#fff;}

/* ---- pills / badges ---- */
.pill{display:inline-flex;align-items:center;gap:7px;border-radius:var(--pill);
  padding:6px 13px;font-size:12.5px;font-weight:600;background:var(--strong);color:var(--body);}
.pill .dot{width:7px;height:7px;border-radius:50%;background:currentColor;}
.pill-blue{background:var(--blue-soft);color:var(--blue-2);}
.pill-green{background:var(--green-soft);color:#048a52;}
.pill-amber{background:rgba(176,111,0,.10);color:var(--amber);}
.pill-red{background:var(--red-soft);color:#a51826;}
.pill-line{background:#fff;border:1px solid var(--line);color:var(--body);}
/* escrow-state badges: colored dot + label */
.st{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;}
.st .dot{width:8px;height:8px;border-radius:50%;}
.st-held{color:var(--held);}         .st-held .dot{background:var(--held);}
.st-shipped{color:var(--shipped);}    .st-shipped .dot{background:var(--shipped);}
.st-delivered{color:var(--delivered);}.st-delivered .dot{background:var(--delivered);}
.st-settled{color:#048a52;}           .st-settled .dot{background:var(--settled);}
.st-refunded{color:var(--refunded);}  .st-refunded .dot{background:var(--refunded);}
.st-disputed{color:#a51826;}          .st-disputed .dot{background:var(--disputed);}

/* ---- inputs ---- */
.input{width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;
  padding:0 15px;font-size:15px;color:var(--ink);font-family:inherit;transition:.15s;}
.input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,82,255,.14);}
.label{font-size:13px;font-weight:600;color:var(--ink);margin-bottom:7px;display:block;}

/* ---- verified / masked ---- */
.verified{display:inline-flex;align-items:center;gap:5px;background:var(--blue-soft);color:var(--blue-2);
  font-size:12px;font-weight:600;padding:5px 11px;border-radius:var(--pill);}
.masked{display:flex;align-items:center;gap:9px;background:var(--soft);border:1px dashed var(--line-2);
  border-radius:var(--r-md);padding:12px 14px;font-size:13px;color:var(--body);line-height:1.4;}
.masked .lock{color:var(--blue);flex-shrink:0;}

/* ---- escrow protect note (dark) ---- */
.escrow-note{background:var(--dark);color:#fff;border-radius:var(--r-lg);padding:18px;}
.escrow-note .t{font-weight:600;font-size:15px;display:flex;align-items:center;gap:8px;}
.escrow-note p{color:var(--on-dark-soft);font-size:12.5px;margin-top:8px;line-height:1.55;}

/* ---- stats band ---- */
.stats{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;}
.stat{background:#fff;padding:18px 16px;}
.stat .n{font-size:22px;font-weight:600;letter-spacing:-0.03em;}
.stat .n .u{font-size:13px;color:var(--muted);font-weight:600;}
.stat .l{font-size:11.5px;color:var(--muted);margin-top:4px;text-transform:uppercase;letter-spacing:.05em;font-weight:600;}
.stat .g{color:var(--green);}

/* ---- escrow SPINE (the signature timeline) ---- */
.spine{position:relative;padding-left:34px;}
.spine::before{content:"";position:absolute;left:11px;top:6px;bottom:22px;width:2px;background:var(--line);}
.spine-step{position:relative;padding-bottom:26px;}
.spine-step:last-child{padding-bottom:0;}
.spine-step .node{position:absolute;left:-34px;top:0;width:24px;height:24px;border-radius:50%;
  background:#fff;border:2px solid var(--line);display:grid;place-items:center;font-size:12px;color:var(--muted);z-index:2;}
.spine-step.done .node{background:var(--settled);border-color:var(--settled);color:#fff;}
.spine-step.active .node{background:var(--blue);border-color:var(--blue);color:#fff;
  box-shadow:0 0 0 5px rgba(0,82,255,.16);}
.spine-step .s-title{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px;}
.spine-step.todo .s-title{color:var(--faint);}
.spine-step .s-meta{font-size:12.5px;color:var(--muted);margin-top:3px;}
.spine-fill::before{background:linear-gradient(var(--settled) var(--fill,0%),var(--line) var(--fill,0%));}

/* ---- app chrome ---- */
.appbar{position:sticky;top:0;z-index:40;height:56px;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(1.2) blur(12px);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:12px;padding:0 16px;}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:19px;letter-spacing:-0.045em;}
.brand .bdot{width:11px;height:11px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px var(--blue-soft);}
.icon-btn{width:40px;height:40px;border-radius:var(--pill);display:grid;place-items:center;color:var(--body);
  border:1px solid transparent;background:transparent;cursor:pointer;transition:.15s;}
.icon-btn:hover{background:var(--soft);}
.avatar{width:34px;height:34px;border-radius:var(--pill);object-fit:cover;border:1px solid var(--line);}
.tabbar{position:sticky;bottom:0;z-index:40;display:flex;background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);border-top:1px solid var(--line);
  padding:8px 4px calc(8px + env(safe-area-inset-bottom));}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 0;
  font-size:11px;font-weight:600;color:var(--muted);}
.tab .ti{font-size:20px;line-height:1;}
.tab.on{color:var(--blue);}

/* ---- misc ---- */
.hair{height:1px;background:var(--line);border:0;margin:0;}
.kv{display:flex;justify-content:space-between;align-items:center;font-size:14px;padding:9px 0;}
.kv+.kv{border-top:1px solid var(--strong);}
.kv .k{color:var(--muted);}
.kv .v{font-weight:600;}
.chip{background:var(--soft);border:1px solid var(--line);border-radius:var(--pill);
  padding:8px 14px;font-size:13px;font-weight:500;color:var(--body);}
.chip-cert{background:var(--blue-soft);border-color:var(--blue-line);color:var(--blue-2);}
.row{display:flex;align-items:center;gap:10px;}
.grow{flex:1;}

/* ---- load animation ---- */
@keyframes rise{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:translateY(0);}}
.rise{animation:rise .6s cubic-bezier(.16,1,.3,1) both;}
.d1{animation-delay:.05s;}.d2{animation-delay:.11s;}.d3{animation-delay:.17s;}
.d4{animation-delay:.23s;}.d5{animation-delay:.29s;}.d6{animation-delay:.35s;}
@media (prefers-reduced-motion:reduce){.rise{animation:none;}}