:root{
  --bg:#F5F6F8;
  --surface:#FFFFFF;
  --ink:#14181F;
  --ink-muted:#5B6472;
  --ink-faint:#8A93A2;
  --plate-blue:#1747A6;
  --plate-blue-dark:#0F3272;
  --line:#DDE1E8;
  --line-strong:#C2C9D4;
  --success:#1F8A55;
  --success-bg:#EAF6EF;
  --danger:#C4331F;
  --danger-bg:#FBEBE8;
  --warning:#9A6A08;
  --warning-bg:#FBF1DD;
  --radius-plate:10px;
  --focus:#1747A6;
  --shadow-card: 0 1px 2px rgba(20,24,31,.04), 0 8px 24px -12px rgba(20,24,31,.18);
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Manrope',system-ui,sans-serif;
  line-height:1.5;
  min-width:320px;
}
h1,h2,h3{font-family:'Golos Text',system-ui,sans-serif;margin:0}
a{color:var(--plate-blue)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

/* ---------- layout shell ---------- */
.shell{max-width:960px;margin:0 auto;padding:0 20px}
header.site{
  border-bottom:1px solid var(--line);
  background:var(--surface);
}
.site-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 0;
}
.brand{display:flex;align-items:center;gap:10px;font-family:'Golos Text';font-weight:700;font-size:17px;letter-spacing:-.01em}
.brand-text{display:flex;flex-direction:column;gap:2px;line-height:1.15}
.brand-text small{font-family:'Manrope';font-weight:500;font-size:11.5px;letter-spacing:0;color:var(--ink-faint)}
.brand-mark{
  width:30px;height:22px;border-radius:4px;background:var(--plate-blue);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-family:'JetBrains Mono';font-weight:700;font-size:10px;letter-spacing:.02em;
  flex:none;
}
nav.site-nav{display:flex;gap:24px}
nav.site-nav a{color:var(--ink-muted);text-decoration:none;font-size:14px;font-weight:600;padding:10px 2px;min-height:44px;display:flex;align-items:center}
nav.site-nav a:hover{color:var(--ink)}

/* ---------- hero ---------- */
.hero{padding:56px 0 40px}
.hero h1{font-size:34px;font-weight:800;letter-spacing:-.02em;max-width:640px}
.hero p.lede{color:var(--ink-muted);font-size:17px;margin:14px 0 0;max-width:520px}

/* ---------- the plate search card (signature element) ---------- */
.plate-card{
  margin-top:32px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-plate);
  box-shadow:var(--shadow-card);
  display:flex;
  overflow:hidden;
}
.plate-strip{
  flex:none;
  width:52px;
  background:linear-gradient(180deg,var(--plate-blue),var(--plate-blue-dark));
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  color:#fff;
}
.plate-strip .stars{font-size:9px;letter-spacing:2px;opacity:.85}
.plate-strip .ua{font-family:'JetBrains Mono';font-weight:700;font-size:13px;letter-spacing:.04em}
.plate-body{flex:1;padding:18px 20px 20px;min-width:0}

.mode-toggle{
  display:inline-flex;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:3px;gap:2px;
}
.mode-toggle button{
  appearance:none;border:0;background:transparent;color:var(--ink-muted);
  font-family:'Manrope';font-weight:700;font-size:13px;
  padding:9px 14px;border-radius:6px;cursor:pointer;min-height:38px;
}
.mode-toggle button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(20,24,31,.12)}

.search-row{margin-top:14px;display:flex;gap:10px;align-items:stretch}
.search-row input{
  flex:1;min-width:0;
  font-family:'JetBrains Mono';font-weight:600;font-size:19px;letter-spacing:.06em;
  color:var(--ink);
  background:var(--surface);
  border:1.5px solid var(--line-strong);
  border-radius:8px;
  padding:0 16px;
  height:52px;
  text-transform:uppercase;
}
.search-row input::placeholder{color:var(--ink-faint);font-weight:500;letter-spacing:.03em}
.search-row input:focus-visible{border-color:var(--plate-blue)}
.btn-primary{
  appearance:none;border:0;cursor:pointer;
  background:var(--plate-blue);color:#fff;
  font-family:'Manrope';font-weight:700;font-size:15px;
  border-radius:8px;padding:0 22px;height:52px;flex:none;
  display:inline-flex;align-items:center;gap:8px;
  transition:background .15s ease;
}
.btn-primary:hover{background:var(--plate-blue-dark)}
.btn-primary:disabled{background:var(--line-strong);color:var(--ink-faint);cursor:not-allowed}

.format-hint{margin-top:10px;font-size:13px;color:var(--ink-muted)}
.field-error{margin-top:10px;font-size:13px;color:var(--danger);font-weight:600;display:none}
.field-error.show{display:block}

.trust-line{
  margin-top:18px;font-size:13px;color:var(--ink-faint);max-width:560px;line-height:1.6;
}

/* ---------- status banners (section 7.3) ---------- */
.banner{
  margin-top:20px;border-radius:8px;padding:14px 16px;font-size:14px;font-weight:600;
  display:flex;align-items:center;gap:10px;
}
.banner .dot{width:8px;height:8px;border-radius:50%;flex:none}
.banner.loading{background:#EEF2F9;color:var(--plate-blue-dark)}
.banner.loading .dot{background:var(--plate-blue);animation:pulse 1s ease-in-out infinite}
.banner.notfound{background:var(--bg);color:var(--ink-muted);border:1px dashed var(--line-strong)}
.banner.ratelimit{background:var(--warning-bg);color:var(--warning)}
.banner.captcha{background:var(--warning-bg);color:var(--warning)}
.banner.error{background:var(--danger-bg);color:var(--danger)}
.banner .req-id{font-family:'JetBrains Mono';font-weight:500;opacity:.75;font-size:12px;margin-left:auto}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}
@media (prefers-reduced-motion: reduce){.banner.loading .dot{animation:none}}

/* ---------- result record ---------- */
.record{
  margin-top:24px;background:var(--surface);border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-card);overflow:hidden;
}
.record-head{
  padding:18px 22px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.record-head .plate-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'JetBrains Mono';font-weight:700;font-size:20px;letter-spacing:.05em;
  background:var(--bg);border:1.5px solid var(--line-strong);border-radius:6px;padding:6px 12px;
}
.record-head .plate-chip .flag{width:16px;height:12px;border-radius:2px;background:var(--plate-blue)}
.btn-ghost{
  appearance:none;border:1.5px solid var(--line-strong);background:var(--surface);color:var(--ink);
  font-family:'Manrope';font-weight:700;font-size:13px;border-radius:7px;padding:0 16px;height:40px;cursor:pointer;
}
.btn-ghost:hover{border-color:var(--plate-blue);color:var(--plate-blue)}

.field-grid{
  display:grid;grid-template-columns:1fr;
  padding:6px 22px 18px;
}
@media (min-width:700px){.field-grid{grid-template-columns:1fr 1fr}}
.field{padding:12px 0;border-bottom:1px solid var(--line)}
.field-grid > .field:nth-last-child(-n+1){border-bottom:0}
@media (min-width:700px){
  .field{padding:14px 20px 14px 0}
  .field:nth-child(odd){border-right:1px solid var(--line)}
}
.field dt{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint);font-weight:700;margin:0 0 4px}
.field dd{margin:0;font-size:16px;font-weight:600;color:var(--ink)}
.field dd.mono{font-family:'JetBrains Mono';font-weight:600;letter-spacing:.02em}
.field dd.empty{color:var(--ink-faint);font-weight:500}

footer.site{margin-top:56px;border-top:1px solid var(--line);padding:22px 0 40px}
footer.site .links{display:flex;gap:20px;flex-wrap:wrap}
footer.site a{color:var(--ink-muted);text-decoration:none;font-size:13px;font-weight:600}
footer.site a:hover{color:var(--plate-blue)}
footer.site .copy{margin-top:14px;font-size:12px;color:var(--ink-faint)}

/* ---------- small viewports (раздел 17 ТЗ: 320px min, no h-scroll) ---------- */
@media (max-width:480px){
  .hero{padding:36px 0 28px}
  .hero h1{font-size:26px}
  .site-bar{flex-wrap:wrap;gap:8px 16px;padding:14px 0}
  nav.site-nav{gap:16px}
  .plate-card{flex-direction:column}
  .plate-strip{flex-direction:row;width:100%;height:34px;gap:10px}
  .search-row{flex-direction:column}
  .search-row input{width:100%}
  .btn-primary{width:100%;justify-content:center}
  .mode-toggle{display:flex;width:100%}
  .mode-toggle button{flex:1}
  .record-head{padding:16px}
  .field-grid{padding:4px 16px 14px}
}