:root {
  --bg: #0b1220;
  --bg-elev: #121a2b;
  --bg-soft: #1a2438;
  --line: #2a3650;
  --ink: #e8eefc;
  --muted: #8b9bb8;
  --mint: #57ffb3;
  --mint-dim: #3dcb8f;
  --warn: #ff7a6e;
  --ok: #3dcb8f;
  --paper: #f4ecd0;
  --paper-ink: #1c2118;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.4);
  --radius: 14px;
  --font-ui: "DM Sans", system-ui, sans-serif;
  --font-display: "Syne", Georgia, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  color: var(--ink);
  font-family: var(--font-ui);
  background:
    radial-gradient(900px 480px at 8% -8%, rgba(87, 255, 179, 0.14), transparent 55%),
    radial-gradient(700px 420px at 100% 0%, rgba(70, 120, 255, 0.12), transparent 50%),
    linear-gradient(180deg, #0e1628 0%, var(--bg) 50%, #070b14 100%);
  min-height: 100vh;
}

[hidden] { display: none !important; }

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
  justify-content: space-between;
  padding: 20px clamp(16px, 4vw, 36px) 8px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
}
.brand .mark {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, #d4ff3f, var(--mint));
  clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
  position: relative;
}
.brand .mark::after {
  content: "";
  position: absolute;
  width: 6px; height: 6px;
  background: #111;
  border-radius: 50%;
  left: 50%; top: 58%;
  transform: translate(-50%, -50%);
}

.eyebrow {
  margin: 0 0 4px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: var(--mint);
  font-weight: 600;
}

h1, h2 {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
h2 { font-size: 1.2rem; margin-bottom: 8px; }

.lede, .hint {
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.95rem;
}

.layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: 16px;
  padding: 12px clamp(16px, 4vw, 36px) 40px;
  max-width: 1100px;
  margin: 0 auto;
}

.panel {
  background: color-mix(in srgb, var(--bg-elev) 92%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 20px;
  box-shadow: var(--shadow);
}

.hero {
  max-width: 720px;
  margin: 40px auto;
  padding: 0 20px 48px;
  text-align: center;
}
.hero .lede { margin: 12px auto 28px; max-width: 42ch; }
.hero-actions {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  max-width: 560px;
  margin: 0 auto;
}
.choice {
  display: block;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 18px;
  background: var(--bg-elev);
  text-align: left;
  transition: border-color 0.15s, transform 0.15s;
}
.choice:hover {
  border-color: var(--mint-dim);
  transform: translateY(-2px);
}
.choice strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 6px;
}
.choice span { color: var(--muted); font-size: 0.9rem; line-height: 1.4; }

.form { display: grid; gap: 12px; }
label {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
}
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--ink);
  padding: 11px 12px;
  font: inherit;
}
textarea { resize: vertical; font-family: var(--font-mono); font-size: 0.85rem; }
input:focus, textarea:focus, select:focus {
  outline: 2px solid color-mix(in srgb, var(--mint) 55%, transparent);
  outline-offset: 1px;
}

.btn {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 14px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  background: var(--bg-soft);
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn.primary {
  background: linear-gradient(180deg, var(--mint), var(--mint-dim));
  color: #062016;
  border-color: transparent;
}
.btn.ghost { background: transparent; }
.btn.sm { padding: 6px 10px; font-size: 0.82rem; }
.btn.danger {
  background: color-mix(in srgb, var(--warn) 28%, var(--bg-soft));
  border-color: color-mix(in srgb, var(--warn) 45%, var(--line));
}
.btn:hover { filter: brightness(1.06); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }

.error {
  margin: 0;
  color: #ffb4a8;
  background: color-mix(in srgb, var(--warn) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--warn) 40%, transparent);
  border-radius: 8px;
  padding: 10px 12px;
}

.pill {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}
.pill.ok { color: #c8e6c0; border-color: color-mix(in srgb, var(--ok) 55%, var(--line)); }

.gate {
  max-width: 420px;
  margin: 48px auto;
  padding: 0 16px;
}
.gate-panel {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 24px;
  box-shadow: var(--shadow);
}
.role-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.role-row label {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  cursor: pointer;
  text-align: center;
  color: var(--ink);
}
.role-row input { display: none; }
.role-row label:has(input:checked) {
  border-color: var(--mint-dim);
  background: color-mix(in srgb, var(--mint) 12%, var(--bg-soft));
}

.scan-card {
  position: relative;
  background:
    radial-gradient(circle at 20% 30%, rgba(180, 140, 40, 0.12), transparent 40%),
    var(--paper);
  color: var(--paper-ink);
  border-radius: 12px;
  padding: 18px 16px 16px 48px;
  border: 1px solid #d2c7a2;
}
.scan-label { margin: 0 0 8px; font-weight: 700; font-size: 1.05rem; }
.arrow {
  position: absolute;
  left: 10px;
  top: 48%;
  transform: translateY(-50%) rotate(90deg);
  color: #c62828;
  font-size: 1.8rem;
  font-weight: 700;
}
.code-frame {
  border: 3px solid #1a1a1a;
  background: #fff;
  padding: 8px;
  display: grid;
  gap: 8px;
}
.code-frame img {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: pixelated;
}
.code-frame .row {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 8px;
  align-items: center;
}
#img-qr { max-width: 140px; justify-self: start; }
.meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  margin: 12px 0 0;
  font-size: 0.85rem;
}
.meta dt { color: #6b725f; }
.meta dd { margin: 0; font-family: var(--font-mono); font-size: 0.8rem; word-break: break-all; }

.reader {
  margin-top: 12px;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
  min-height: 220px;
}
.reader video {
  width: 100%;
  display: block;
  max-height: 320px;
  object-fit: cover;
}

.verdict {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  font-size: 0.95rem;
  line-height: 1.45;
}
.verdict.verified {
  background: color-mix(in srgb, var(--ok) 22%, var(--bg-soft));
  border-color: color-mix(in srgb, var(--ok) 50%, var(--line));
}
.verdict.tampered, .verdict.revoked, .verdict.invalid, .verdict.unknown, .verdict.login_required {
  background: color-mix(in srgb, var(--warn) 18%, var(--bg-soft));
  border-color: color-mix(in srgb, var(--warn) 40%, var(--line));
}
.verdict strong {
  display: block;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.78rem;
}

.list { display: grid; gap: 8px; margin-top: 12px; }
.list-item {
  display: grid;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-soft);
  font-size: 0.9rem;
}
.list-item .row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
}
.list-item code { font-family: var(--font-mono); font-size: 0.8rem; }
.status-active { color: #b7e0b0; }
.status-revoked { color: #ffb4a8; }

@media (max-width: 520px) {
  .scan-card { padding-left: 40px; }
  .code-frame .row { grid-template-columns: 1fr; }
  #img-qr { max-width: 160px; }
}