:root {
  --bg: #0b1220; --surface: #131c2e; --surface-2: #1b2740; --border: #2a3a5c;
  --text: #e6edf7; --muted: #93a4c0; --brand: #16a34a; --brand-2: #22c55e;
  --warn: #f59e0b;
  --radius: 12px; --shadow: 0 6px 24px rgba(0,0,0,.35);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; min-height: 100vh; color: var(--text);
  background: radial-gradient(1100px 500px at 50% -10%, #15233c 0%, var(--bg) 60%); }

.topbar { display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; backdrop-filter: blur(8px); background: rgba(11,18,32,.7); z-index: 5; }
.brand { font-weight: 700; font-size: 18px; }
.tag { font-size: 13px; color: var(--muted); }

.container { max-width: 680px; margin: 0 auto; padding: 30px 18px 60px; }
.tagline { font-size: 30px; text-align: center; margin: 6px 0 4px; }
.sub { text-align: center; color: var(--muted); margin: 0 0 24px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row label { flex: 1; min-width: 120px; }
input, select { width: 100%; background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px; padding: 11px 13px; font-size: 15px; font-family: inherit; }
#vin { letter-spacing: 1px; text-transform: uppercase; font-family: ui-monospace, Menlo, Consolas, monospace; }
input:focus, select:focus { outline: none; border-color: var(--brand-2); }
button.primary { width: 100%; margin-top: 6px; padding: 13px; border: 0; border-radius: 10px; cursor: pointer;
  background: var(--brand); color: #fff; font-size: 15px; font-weight: 700; transition: .15s; }
button.primary:hover { background: var(--brand-2); }
button.primary:disabled { opacity: .6; cursor: progress; }

#result { margin-top: 20px; }
.preview-banner { background: rgba(245,158,11,.12); border: 1px solid var(--warn); color: #fbbf24;
  border-radius: 10px; padding: 10px 14px; margin-bottom: 16px; font-size: 13px; font-weight: 600; }

.vehicle { font-size: 20px; font-weight: 700; margin: 0 0 4px; }
.vehicle .muted { color: var(--muted); font-weight: 400; font-size: 15px; }

.value-box { text-align: center; margin: 18px 0; }
.value-box .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.value-box .avg { font-size: 42px; font-weight: 800; color: var(--brand-2); margin: 2px 0; }
.value-box .range { color: var(--muted); font-size: 15px; }
.value-box .source { color: var(--muted); font-size: 11px; margin-top: 8px; opacity: .85; }

.confidence { display: inline-flex; align-items: flex-start; gap: 8px; text-align: left;
  max-width: 460px; margin: 12px auto 0; padding: 8px 12px; border-radius: 8px;
  font-size: 12.5px; line-height: 1.4; border: 1px solid var(--border); background: var(--surface-2); }
.confidence .dot { flex: none; width: 9px; height: 9px; border-radius: 50%; margin-top: 4px; background: var(--muted); }
.confidence.high    { border-color: #1f8a4c55; background: #1f8a4c14; }
.confidence.high .dot    { background: #1f8a4c; }
.confidence.moderate{ border-color: #c98a0055; background: #c98a0014; }
.confidence.moderate .dot{ background: #c98a00; }
.confidence.limited { border-color: #c0392b55; background: #c0392b14; }
.confidence.limited .dot { background: #c0392b; }
.confidence .conf-text strong { font-weight: 700; }

.specs { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 18px; margin-top: 14px; }
.specs div { display: flex; justify-content: space-between; border-bottom: 1px solid var(--border); padding: 6px 0; font-size: 14px; }
.specs .k { color: var(--muted); } .specs .v { font-weight: 600; text-align: right; }

.paywall { text-align: center; margin: 18px 0; padding: 18px; background: var(--surface-2); border: 1px dashed var(--border); border-radius: 10px; }
.paywall .lock { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.paywall .muted { color: var(--muted); font-size: 13px; margin: 0 0 14px; }
.packs { display: flex; flex-direction: column; gap: 8px; max-width: 320px; margin: 0 auto; }
.buy { padding: 12px; border: 1px solid var(--brand); border-radius: 9px; background: transparent; color: var(--brand-2); font-weight: 700; font-size: 14px; cursor: pointer; transition: .15s; }
.buy:hover { background: var(--brand); color: #fff; }
.buy:disabled { opacity: .6; cursor: progress; }
.sec-h { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin: 18px 0 8px; }
.scorecard { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.chip { background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 12px; text-align: center; }
.chip .cv { font-size: 22px; font-weight: 800; color: var(--brand-2); }
.chip .cl { font-size: 11.5px; color: var(--muted); margin-top: 2px; }

.vhealth { margin-top: 4px; }
.vh-load { color: var(--muted); font-size: 13px; padding: 6px 0; }
.vh-row { background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 11px 13px; margin-bottom: 8px; font-size: 13px; }
.vh-row.warn { border-color: #c98a0055; background: #c98a0014; }
.vh-row.ok { border-color: #1f8a4c55; background: #1f8a4c14; }
.vh-row b { font-size: 14px; }
.vh-k { color: var(--muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 6px; }
.vh-sub { color: var(--text); font-size: 13px; padding: 2px 0; }
.vh-sub .muted { color: var(--muted); }

.note { font-size: 12px; color: var(--muted); margin-top: 14px; line-height: 1.5; }
.err { color: #f87171; font-size: 14px; margin-top: 6px; }
.footer { max-width: 680px; margin: 0 auto; padding: 20px 18px 40px; text-align: center; color: var(--muted); font-size: 12px; line-height: 1.6; }
.footer a { color: var(--brand-2); }
.navlink { color: var(--muted); font-size: 13px; text-decoration: none; }
.navlink:hover { color: var(--brand-2); }

.balance { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 0 0 16px; }
.bcard { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; text-align: center; }
.bcard .blabel { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.bcard .bval { font-size: 30px; font-weight: 800; color: var(--brand-2); margin-top: 4px; }
.bcard .bval.muted { color: var(--muted); }
.bcard .bsub { font-size: 12px; color: var(--muted); margin-top: 2px; }

.sec-title { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; margin: 22px 0 8px; }
.history { display: flex; flex-direction: column; gap: 8px; }
.hrow { display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 11px 14px; }
.hrow .car { font-weight: 600; font-size: 14px; }
.hrow .meta { color: var(--muted); font-size: 12px; margin-top: 2px; }
.hrow .right { text-align: right; white-space: nowrap; }
.hrow .price { font-weight: 700; color: var(--brand-2); }
.hrow .when { color: var(--muted); font-size: 11.5px; margin-top: 2px; }
.cdot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 5px; vertical-align: 1px; }
.cdot.high { background: #1f8a4c; } .cdot.moderate { background: #c98a00; } .cdot.limited { background: #c0392b; }
.empty { color: var(--muted); font-size: 14px; text-align: center; padding: 22px;
  background: var(--surface); border: 1px dashed var(--border); border-radius: 12px; }

@media (max-width: 520px) { .specs { grid-template-columns: 1fr; } .tagline { font-size: 25px; } .balance { grid-template-columns: 1fr; } }