:root {
  --bg: #111111;
  --fg: #f5f5f5;
  --muted: #9a9a9a;
  --surface: #1d1d1d;
  --accent: #4d7cfe;
  --danger: #e5484d;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

#app {
  height: 100%;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* ---------- Overview ---------- */
.overview {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px;
  padding-bottom: 96px;
}

.overview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 4px 16px;
}

.overview-header h1 {
  font-size: 1.4rem;
  margin: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.tile {
  border-radius: 14px;
  padding: 16px 14px 12px;
  min-height: 110px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #111;
  text-align: left;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

.tile-name {
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.2;
  word-break: break-word;
}

.tile-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  font-size: 0.72rem;
  gap: 8px;
}

.tile-ordinal {
  opacity: 0.75;
  font-weight: 600;
}

.tile-symbology {
  text-transform: uppercase;
  font-weight: 700;
  opacity: 0.8;
  letter-spacing: 0.04em;
}

.fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  box-shadow: 0 4px 16px rgba(77, 124, 254, 0.5);
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 60px 20px;
}

.no-wasm {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px;
  gap: 8px;
}

.no-wasm h1 {
  margin: 0;
  font-size: 1.5rem;
}

.no-wasm p {
  margin: 0;
  color: var(--muted);
  max-width: 28em;
}

/* ---------- Display ---------- */
.display {
  position: fixed;
  inset: 0;
  background: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  color: #000;
}

.display canvas {
  max-width: 92vw;
  max-height: 78vh;
}

.display-label {
  margin-top: 20px;
  font-weight: 700;
  font-size: 1rem;
  color: #000;
}

.display-symbology {
  margin-top: 4px;
  font-size: 0.8rem;
  text-transform: uppercase;
  color: #555;
}

.display-back {
  position: fixed;
  top: 16px;
  left: 16px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.06);
  font-size: 1.4rem;
  color: #000;
}

.display-edit {
  position: fixed;
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.06);
  font-size: 1.2rem;
  color: #000;
}

/* ---------- Chooser / Add ---------- */
.chooser {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.chooser-sheet {
  width: 100%;
  max-width: 640px;
  background: var(--surface);
  border-radius: 18px 18px 0 0;
  padding: 12px 8px 24px;
}

.chooser-sheet button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 16px 20px;
  font-size: 1.05rem;
  color: var(--fg);
  border-radius: 10px;
}

.chooser-sheet button:hover,
.chooser-sheet button:active {
  background: #2a2a2a;
}

.chooser-cancel {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ---------- Forms ---------- */
.screen {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px;
}

.screen-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
}

.screen-header h1 {
  font-size: 1.3rem;
  margin: 0;
}

.back-btn {
  font-size: 1.3rem;
  padding: 4px 8px;
  color: var(--fg);
}

.field {
  margin-bottom: 20px;
}

.field label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.85rem;
}

.field input,
.field select {
  width: 100%;
  padding: 12px 14px;
  font-size: 1rem;
  border-radius: 10px;
  border: 1px solid #333;
  background: var(--surface);
  color: var(--fg);
}

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

.swatch {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 3px solid transparent;
}

.swatch.selected {
  border-color: #fff;
}

.btn {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
}

.btn.danger {
  background: var(--danger);
  margin-top: 24px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: default;
}

.error {
  color: var(--danger);
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.method-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.method-tabs button {
  flex: 1;
  padding: 10px;
  border-radius: 10px;
  background: var(--surface);
  color: var(--muted);
  font-weight: 600;
}

.method-tabs button.active {
  background: var(--accent);
  color: #fff;
}

/* ---------- Scanner ---------- */
.scan-view {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 16px;
}

.scan-view video {
  width: 100%;
  max-width: 480px;
  border-radius: 14px;
  background: #000;
  transform: scaleX(-1);
}

.scan-view .btn,
.scan-view .btn.secondary {
  width: auto;
  padding: 12px 20px;
}

.btn.secondary {
  background: #333;
  color: var(--fg);
}

/* ---------- Overlay / modal ---------- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 20;
}

.overlay-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 24px;
  max-width: 400px;
  width: 100%;
}

.overlay-card h2 {
  margin-top: 0;
}

.overlay-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.overlay-actions .btn {
  width: auto;
  flex: 1;
}

.btn.ghost {
  background: #333;
}