:root {
  --bg: #f5f5f3;
  --fg: #1f2430;
  --card: #ffffff;
  --border: #e0ddd6;
  --accent: #2f6f4f;
  --accent-fg: #ffffff;
  --muted: #8a8578;
  --danger: #b5533c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171c;
    --fg: #eceae4;
    --card: #1f2229;
    --border: #2d313a;
    --accent: #4caf7d;
    --accent-fg: #0c140f;
    --muted: #8d9199;
    --danger: #e08a74;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  overscroll-behavior-y: none;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  padding-bottom: env(safe-area-inset-bottom);
}

.app-header {
  padding: calc(env(safe-area-inset-top) + 12px) 16px 12px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.current-category {
  font-size: 1.1rem;
  font-weight: 600;
}

.current-meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 2px;
}

.unrecorded {
  font-size: 0.85rem;
  color: var(--muted);
  text-align: right;
  white-space: nowrap;
}

main {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  padding-bottom: 96px;
}

.screen { display: none; }
.screen.active { display: block; }

.quick-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

.quick-btn {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 10px;
  text-align: left;
  font-size: 0.95rem;
  color: var(--fg);
  min-height: 56px;
}

.quick-btn .code {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 2px;
}

.quick-btn.current {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.btn-other {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: 1px dashed var(--border);
  background: transparent;
  color: var(--fg);
  margin-bottom: 16px;
}

.medium-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.medium-chip {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  font-size: 0.85rem;
}

.medium-chip.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}

.note-input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.btn-stop {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--danger);
  background: transparent;
  color: var(--danger);
  font-size: 0.95rem;
}

.queue-status {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--muted);
  min-height: 1em;
}

.tabbar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  display: flex;
  background: var(--card);
  border-top: 1px solid var(--border);
  padding-bottom: env(safe-area-inset-bottom);
}

.tab {
  flex: 1;
  padding: 12px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.9rem;
}

.tab.active {
  color: var(--accent);
  font-weight: 600;
}

.report-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.period-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.period-nav button {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  color: var(--fg);
}

.period-mode {
  display: flex;
  gap: 6px;
}

.mode-btn {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  color: var(--muted);
}

.mode-btn.active {
  color: var(--accent-fg);
  background: var(--accent);
  border-color: var(--accent);
}

.drilldown-bar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 10px;
  font-size: 0.8rem;
  color: var(--muted);
}

.drilldown-bar button {
  background: none;
  border: none;
  color: var(--accent);
  padding: 0;
  font-size: 0.8rem;
}

.report-heading {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 16px 0 8px;
}

.bar-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.bar-item {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.bar-item .bar-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.bar-track {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: var(--accent);
}

.btn-export {
  width: 100%;
  margin-top: 20px;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: flex-end;
  z-index: 50;
}

.overlay[hidden] { display: none; }

.picker-panel {
  width: 100%;
  max-height: 80vh;
  background: var(--card);
  border-radius: 16px 16px 0 0;
  display: flex;
  flex-direction: column;
  padding-bottom: env(safe-area-inset-bottom);
}

.picker-header {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid var(--border);
}

.picker-header input {
  flex: 1;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--fg);
}

.picker-header button {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.9rem;
}

.picker-columns {
  display: flex;
  overflow-x: auto;
  flex: 1;
}

.picker-column {
  min-width: 70vw;
  max-width: 70vw;
  border-right: 1px solid var(--border);
  overflow-y: auto;
}

.picker-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.picker-item .label {
  flex: 1;
}

.picker-item .label .code {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
}

.picker-item button.drill {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1rem;
  padding: 4px 8px;
}

.picker-item.selected {
  background: var(--bg);
}