:root {
  color-scheme: light dark;
  --bg: #fafaf7;
  --surface: #ffffff;
  --text: #1c1917;
  --muted: #78716c;
  --border: #e7e5e4;
  --accent: #c2410c; /* orange-700: 4.5:1 or better as text and behind white text */
  --accent-text: #ffffff;
  --accent-soft: #fff1e8;
  --danger: #dc2626;
  --ok: #15803d;
  --radius: 12px;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0a09;
    --surface: #1c1917;
    --text: #f5f5f4;
    --muted: #a8a29e;
    --border: #2e2a27;
    --accent: #fb923c;
    --accent-text: #1c1917;
    --accent-soft: #2a1a10;
    --danger: #f87171;
    --ok: #4ade80;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a {
  color: var(--accent);
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}

header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 20px;
  text-decoration: none;
}

.brand svg {
  color: var(--accent);
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.lead {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 18px;
}

.card {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.card + .card {
  margin-top: 16px;
}

form.shorten {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
}

.hint {
  color: var(--muted);
  font-weight: 400;
}

input,
select {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

input:focus-visible,
select:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

input[aria-invalid="true"] {
  border-color: var(--danger);
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.prefix {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
}

.prefix span {
  padding-left: 14px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 14px;
  white-space: nowrap;
}

.prefix input {
  border: 0;
  padding-left: 2px;
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-text);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

button.secondary,
.button.secondary {
  border-color: var(--border);
  background: var(--surface);
  color: var(--text);
}

button.danger {
  border-color: var(--danger);
  background: transparent;
  color: var(--danger);
}

button[disabled],
.htmx-request button[type="submit"] {
  opacity: 0.6;
  cursor: progress;
}

.error {
  margin: 0;
  color: var(--danger);
  font-size: 14px;
}

.result {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
}

.short {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.short a {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 600;
  word-break: break-all;
}

.qr {
  width: 120px;
  height: 120px;
  padding: 6px;
  border-radius: 8px;
  background: #fff;
}

.notice {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--accent-soft);
  font-size: 14px;
}

.notice code,
.mono {
  font-family: var(--mono);
  font-size: 13px;
  word-break: break-all;
}

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

.stats-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 20px 0;
}

.stat {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.stat b {
  display: block;
  font-size: 26px;
}

.chart {
  width: 100%;
  height: auto;
  margin-top: 8px;
}

.chart rect {
  fill: var(--accent);
}

.chart text {
  fill: var(--muted);
  font-size: 11px;
}

.breakdowns {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

td.n {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  font-size: 13px;
  font-weight: 600;
}

.badge.off {
  color: var(--danger);
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.demo-banner {
  padding: 8px 16px;
  background: var(--accent-soft);
  font-size: 14px;
  text-align: center;
}

footer {
  margin-top: 48px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 600px) {
  .row,
  .breakdowns,
  .result {
    grid-template-columns: 1fr;
  }

  .stat-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.label {
  margin: 0 0 4px;
}

.target {
  margin: 6px 0 0;
}

.again {
  margin: 16px 0 0;
}

.page-title {
  font-size: 28px;
}

.stat b.small {
  margin-top: 8px;
  font-size: 15px;
}

.first {
  margin-top: 0;
}

.breakdowns h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.chart .baseline {
  stroke: var(--border);
}

.preview-host {
  margin: 4px 0;
  word-break: break-all;
}

.export {
  margin: 12px 4px;
  font-size: 14px;
}