:root {
  color-scheme: light;
  --navy: #10243e;
  --blue: #1769aa;
  --blue-dark: #0d4f86;
  --ice: #eef5fa;
  --line: #cbd8e2;
  --text: #172330;
  --muted: #5c6b78;
  --danger: #a82424;
  --success: #176b42;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--ice); color: var(--text); font: 16px/1.45 system-ui, sans-serif; }
header { display: flex; align-items: center; gap: 1rem; padding: 1.25rem max(1rem, calc((100vw - 1040px) / 2)); background: var(--navy); color: white; }
header h1, header p { margin: 0; }
header p { color: #c7d8e8; }
.brand-mark { display: grid; width: 3rem; height: 3rem; place-items: center; border: 2px solid white; border-radius: 50%; font-weight: 800; }
main { width: min(1040px, calc(100% - 2rem)); margin: 2rem auto; }
.card { background: white; border: 1px solid var(--line); border-radius: .75rem; box-shadow: 0 3px 14px rgb(16 36 62 / .08); }
.narrow { max-width: 620px; margin: 4rem auto; padding: 1.5rem; }
h2, h3, p { margin-top: 0; }
label { display: block; margin-bottom: .4rem; font-weight: 650; }
input { min-width: 0; border: 1px solid #93a9ba; border-radius: .45rem; padding: .72rem .8rem; font: inherit; }
input:focus { outline: 3px solid rgb(23 105 170 / .2); border-color: var(--blue); }
button { border: 0; border-radius: .45rem; padding: .72rem 1rem; background: var(--blue); color: white; font: inherit; font-weight: 700; cursor: pointer; }
button:hover:not(:disabled) { background: var(--blue-dark); }
button:disabled { cursor: not-allowed; opacity: .48; }
button.secondary { background: #e7eef4; color: var(--navy); }
.row, .controls { display: flex; gap: .65rem; flex-wrap: wrap; }
.row input { flex: 1 1 16rem; }
.toolbar { display: grid; grid-template-columns: 1fr auto; gap: 1rem; padding: 1.25rem; }
.toolbar p { margin-bottom: 0; color: var(--muted); }
.search { display: flex; grid-column: 1 / -1; gap: .65rem; }
.search input { flex: 1; }
.status { min-height: 1.5rem; margin: 1rem .2rem; color: var(--muted); }
.results { display: grid; gap: 1rem; }
.player { display: grid; grid-template-columns: minmax(220px, 1fr) minmax(300px, 1.2fr); gap: 1.5rem; padding: 1.25rem; }
.player h3 { margin-bottom: .25rem; font-size: 1.3rem; }
.player-ids, .pronunciation, .record-state { color: var(--muted); }
.recorder { border-left: 1px solid var(--line); padding-left: 1.5rem; }
.record { background: var(--danger); }
.upload { background: var(--success); }
.preview { width: 100%; margin-top: 1rem; }
.message, .error { min-height: 1.4rem; margin: .75rem 0 0; color: var(--danger); }
.message.success { color: var(--success); }
.admin-nav { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.admin-nav a { color: var(--blue); font-weight: 700; }
.summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .75rem; margin-bottom: 1rem; }
.metric { display: flex; flex-direction: column; padding: 1rem; }
.metric strong { font-size: 1.7rem; color: var(--navy); }
.metric span { color: var(--muted); }
.admin-section { margin-bottom: 1rem; padding: 1.25rem; }
.duplicate-group { border-top: 1px solid var(--line); padding: 1rem 0; }
.table-wrap { overflow-x: auto; margin-top: 1rem; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { border-bottom: 1px solid var(--line); padding: .55rem; text-align: left; white-space: nowrap; }
th { background: var(--ice); color: var(--navy); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (max-width: 720px) {
  main { width: min(100% - 1rem, 1040px); margin-top: 1rem; }
  .narrow { margin-top: 2rem; }
  .toolbar, .player { grid-template-columns: 1fr; }
  .toolbar button { grid-row: auto; }
  .recorder { border-left: 0; border-top: 1px solid var(--line); padding: 1rem 0 0; }
  .search { grid-column: 1; }
  .controls button { flex: 1 1 9rem; }
}