:root {
  color-scheme: dark;
  --bg: #0f1115;
  --panel: #171a21;
  --line: #2a3140;
  --text: #e8ecf4;
  --muted: #9aa3b5;
  --accent: #6ea8ff;
  --ok: #5dcea6;
  --danger: #f07178;
  --radius: 14px;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(1200px 600px at 10% -10%, #1a2740 0%, transparent 55%),
    var(--bg);
  color: var(--text);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
  background: #0c0e13;
  padding: 0.1em 0.35em;
  border-radius: 6px;
}

.page {
  max-width: 880px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.hero h1 {
  margin: 0.25rem 0 0.75rem;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.02em;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.lede,
.muted-text {
  color: var(--muted);
  line-height: 1.55;
}

.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 2rem;
}

.card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem 1.25rem;
  color: inherit;
}

.card h2 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.card.muted {
  opacity: 0.9;
}

.foot {
  margin-top: 2.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin: 1.25rem 0 1.5rem;
}

input[type="password"],
input[type="text"] {
  background: #0c0e13;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 0.55rem 0.75rem;
  min-width: 12rem;
}

button,
.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: #222836;
  color: var(--text);
  border-radius: 10px;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  font: inherit;
}

button.primary {
  background: #2b4d8f;
  border-color: #3a63b5;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

th,
td {
  text-align: left;
  padding: 0.75rem 0.9rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.85rem;
}

tr:last-child td {
  border-bottom: none;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.row {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 720px) {
  .row.two {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.qr-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: #0c0e13;
  border-radius: 12px;
  border: 1px solid var(--line);
}

.qr-box canvas,
.qr-box img {
  width: 200px;
  height: 200px;
  background: #fff;
  border-radius: 8px;
}

.meta dt {
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 0.75rem;
}

.meta dd {
  margin: 0.15rem 0 0;
  word-break: break-all;
}

.error {
  color: var(--danger);
}

.ok {
  color: var(--ok);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}