:root {
  color-scheme: dark;
  --bg: #1d2433;
  --panel: #262f42;
  --line: #3a4560;
  --text: #eef1f7;
  --muted: #a3adc2;
  --accent: #f2c230;
  --danger: #ff7a6b;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0 auto;
  max-width: 760px;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom)
    env(safe-area-inset-left);
}

header {
  padding: 1rem 1rem 0;
}
h1 {
  margin: 0;
  font-size: 1.4rem;
}
h1::before {
  content: "●";
  color: var(--accent);
  margin-right: 0.4rem;
}

main {
  flex: 1;
  padding: 1rem;
}

footer {
  padding: 1rem;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

.viewfinder {
  margin-bottom: 1rem;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}
.viewfinder video {
  display: block;
  width: 100%;
  max-height: 65dvh;
  object-fit: cover;
}
/* With the viewfinder the short hint is enough; the space belongs to the image. */
.viewfinder:not([hidden]) + .tips li:not(:first-child) {
  display: none;
}

.tips {
  background: var(--panel);
  border-radius: 12px;
  padding: 1rem 1rem 1rem 2.2rem;
  line-height: 1.5;
  margin: 0 0 1.5rem;
}
.tips li + li {
  margin-top: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.btn:active {
  transform: scale(0.98);
}
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #1d2433;
}
.btn.danger {
  color: var(--danger);
}
.btn[aria-pressed="true"] {
  background: var(--accent);
  color: #1d2433;
}

.actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}
.actions .btn {
  flex: 1 1 10rem;
}

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

.summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}
#sum {
  font-size: 2.4rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
#count {
  color: var(--muted);
  font-size: 1.1rem;
}

.stage {
  position: relative;
}
#photo {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  touch-action: manipulation;
  cursor: pointer;
}
.busy {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(15, 20, 30, 0.6);
  border-radius: 12px;
  font-weight: 600;
}
.busy[hidden] {
  display: none;
}

.hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0.5rem 0 0.75rem;
}
.hint.warn {
  color: var(--accent);
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.breakdown {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-variant-numeric: tabular-nums;
}
.breakdown td {
  padding: 0.55rem 0.25rem;
  border-bottom: 1px solid var(--line);
}
.breakdown .num {
  text-align: right;
  white-space: nowrap;
}
.dot {
  display: inline-block;
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: var(--c);
  margin-right: 0.6rem;
  vertical-align: -0.05rem;
}

dialog {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  color: var(--text);
  padding: 1.25rem;
  width: min(26rem, calc(100vw - 2rem));
}
dialog::backdrop {
  background: rgba(0, 0, 0, 0.55);
}
dialog h2 {
  margin: 0 0 1rem;
  font-size: 1.1rem;
}
.coins {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}
.coin {
  min-height: 3rem;
  border: 2px solid var(--c);
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.coin.current {
  background: var(--c);
  color: #1d2433;
}
.dialog-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}
.dialog-actions .btn {
  flex: 1;
  min-height: 2.6rem;
}
.dialog-actions .btn[hidden] {
  display: none;
}