:root {
  color-scheme: light;
  --surface-1:      #fcfcfb;
  --page-plane:     #f9f9f7;
  --text-primary:   #0b0b0b;
  --text-secondary: #52514e;
  --text-muted:     #898781;
  --gridline:       #e1e0d9;
  --baseline:       #c3c2b7;
  --border:         rgba(11,11,11,0.10);
  --series-1:       #2a78d6;
  --series-2:       #008300;
  --good:           #0ca30c;
  --warning:        #fab219;
  --serious:        #ec835a;
  --critical:       #d03b3b;
  --card-shadow:    0 1px 2px rgba(11,11,11,0.06), 0 1px 1px rgba(11,11,11,0.04);
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --surface-1:      #1a1a19;
    --page-plane:     #0d0d0d;
    --text-primary:   #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted:     #898781;
    --gridline:       #2c2c2a;
    --baseline:       #383835;
    --border:         rgba(255,255,255,0.10);
    --series-1:       #3987e5;
    --series-2:       #008300;
    --good:           #0ca30c;
    --warning:        #fab219;
    --serious:        #ec835a;
    --critical:       #e66767;
    --card-shadow:    0 1px 2px rgba(0,0,0,0.4), 0 1px 1px rgba(0,0,0,0.3);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --surface-1:      #1a1a19;
  --page-plane:     #0d0d0d;
  --text-primary:   #ffffff;
  --text-secondary: #c3c2b7;
  --text-muted:     #898781;
  --gridline:       #2c2c2a;
  --baseline:       #383835;
  --border:         rgba(255,255,255,0.10);
  --series-1:       #3987e5;
  --series-2:       #008300;
  --good:           #0ca30c;
  --warning:        #fab219;
  --serious:        #ec835a;
  --critical:       #e66767;
  --card-shadow:    0 1px 2px rgba(0,0,0,0.4), 0 1px 1px rgba(0,0,0,0.3);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--page-plane);
  color: var(--text-primary);
  padding-bottom: 3rem;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 1.25rem 1rem 2rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  row-gap: 0.5rem;
  column-gap: 1rem;
}

.topbar nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  row-gap: 0.4rem;
  column-gap: 0.9rem;
}

.topbar nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  white-space: nowrap;
}
.topbar nav a:hover { color: var(--text-primary); }

.topbar nav form { display: flex; }

@media (max-width: 480px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
  .topbar nav {
    row-gap: 0.5rem;
    column-gap: 0.7rem;
  }
  .topbar nav a,
  .topbar nav .clear-all-btn {
    font-size: 0.8rem;
  }
}

.clear-all-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
}
.clear-all-btn:hover {
  color: var(--critical);
  border-color: var(--critical);
}

#clear-all-btn {
  color: var(--critical);
  border-color: var(--critical);
}
#clear-all-btn:hover {
  background: var(--critical);
  color: #fff;
}

.clear-all-row {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11,11,11,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 100;
}
.modal-overlay[hidden] { display: none; }

.modal-box {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--card-shadow);
  padding: 1.25rem;
  width: 100%;
  max-width: 320px;
}

.modal-box h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  color: var(--text-primary);
}

.modal-box p {
  margin: 0 0 0.9rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.modal-input {
  width: 100%;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--page-plane);
  color: var(--text-primary);
  font-family: inherit;
}
.modal-input:focus {
  outline: none;
  border-color: var(--series-1);
}

.modal-error {
  font-size: 0.78rem;
  color: var(--critical);
  min-height: 1.2em;
  margin-top: 0.4rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.modal-btn {
  border-radius: 8px;
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid var(--border);
}
.modal-btn.secondary {
  background: none;
  color: var(--text-secondary);
}
.modal-btn.primary {
  background: var(--critical);
  color: #fff;
  border-color: var(--critical);
}

.score-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.score-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--card-shadow);
  padding: 1.1rem 1.3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  flex: 1 1 260px;
}

.score-card .date-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.score-card .score-value {
  font-size: 2.4rem;
  font-weight: 700;
  font-variant-numeric: proportional-nums;
  line-height: 1.1;
}

.score-card .score-frac {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--border);
}
.status-pill.good { color: var(--good); }
.status-pill.warning { color: #8a6100; }
.status-pill.serious { color: #a44a26; }
.status-pill.critical { color: var(--critical); }
:root[data-theme="dark"] .status-pill.warning,
@media (prefers-color-scheme: dark) {
  .status-pill.warning { color: var(--warning); }
  .status-pill.serious { color: var(--serious); }
}

section.group {
  margin-bottom: 1.75rem;
}

section.group h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin: 0 0 0.6rem 2px;
}

.habit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.habit-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--gridline);
  cursor: pointer;
  user-select: none;
}
.habit-item:last-child { border-bottom: none; }
.habit-item:hover { background: color-mix(in srgb, var(--series-1) 6%, transparent); }

.habit-item input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--series-1);
  flex-shrink: 0;
}

.habit-item .time-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  min-width: 4.2rem;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.habit-item .habit-main {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.habit-item .habit-text {
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: color 0.15s, text-decoration-color 0.15s;
}

.habit-item .habit-detail {
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.3;
}

.habit-item.checked .habit-text {
  color: var(--text-muted);
  text-decoration: line-through;
  text-decoration-color: var(--text-muted);
}

.habit-item.checked .habit-detail {
  opacity: 0.6;
}

.habit-item.readonly { cursor: default; }
.habit-item.readonly:hover { background: none; }

.sub-list-wrap {
  border-bottom: 1px solid var(--gridline);
}
.sub-list-wrap:last-child { border-bottom: none; }

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

.habit-item.sub-item {
  padding: 0.5rem 1rem 0.5rem 2.4rem;
  border-bottom: 1px solid var(--gridline);
  position: relative;
}
.habit-item.sub-item:last-child { border-bottom: none; }
.habit-item.sub-item::before {
  content: "";
  position: absolute;
  left: 1.5rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--gridline);
}
.habit-item.sub-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
}
.habit-item.sub-item .habit-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.habit-item.sub-item.checked .habit-text {
  color: var(--text-muted);
}

.notes-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  box-shadow: var(--card-shadow);
}

.notes-card h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin: 0 0 0.6rem 0;
}

.notes-card textarea {
  width: 100%;
  min-height: 5rem;
  resize: vertical;
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0.6rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--page-plane);
  color: var(--text-primary);
}

.save-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
  min-height: 1em;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  font-size: 0.9rem;
}
table.data-table th, table.data-table td {
  text-align: left;
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid var(--gridline);
}
table.data-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
table.data-table tr:last-child td { border-bottom: none; }
table.data-table td.num { font-variant-numeric: tabular-nums; }
table.data-table a { color: var(--series-1); text-decoration: none; }
table.data-table a:hover { text-decoration: underline; }

.pct-cell { display: flex; align-items: center; gap: 0.5rem; }
.pct-bar-track {
  flex: 1;
  max-width: 100px;
  height: 6px;
  border-radius: 3px;
  background: var(--gridline);
  overflow: hidden;
}
.pct-bar-fill {
  height: 100%;
  background: var(--series-1);
  border-radius: 3px 0 0 3px;
}

.chart-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1rem 0.5rem;
  box-shadow: var(--card-shadow);
  margin-bottom: 1.5rem;
}
.chart-card h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin: 0 0 0.6rem 0;
}

.trend-svg text {
  fill: var(--text-muted);
  font-size: 10px;
  font-family: system-ui, sans-serif;
}
.trend-svg .gridline { stroke: var(--gridline); stroke-width: 1; }
.trend-svg .baseline { stroke: var(--baseline); stroke-width: 1; }
.trend-svg .trend-line-checklist { fill: none; stroke: var(--series-1); stroke-width: 2; }
.trend-svg .trend-dot-checklist { fill: var(--series-1); }
.trend-svg .trend-line-nonneg { fill: none; stroke: var(--series-2); stroke-width: 2; }
.trend-svg .trend-dot-nonneg { fill: var(--series-2); }

.chart-legend {
  display: flex;
  gap: 1.25rem;
  margin: 0.25rem 0 0.75rem 2px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.chart-legend .legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.chart-legend .swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  display: inline-block;
}
.chart-legend .swatch.checklist { background: var(--series-1); }
.chart-legend .swatch.nonneg { background: var(--series-2); }

.tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--text-primary);
  color: var(--surface-1);
  font-size: 0.75rem;
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  transform: translate(-50%, -130%);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.1s;
  z-index: 10;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
}

.empty-state {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 1rem;
  text-align: center;
}

@media (max-width: 480px) {
  .score-card .score-value { font-size: 1.9rem; }
  .habit-item .time-label { min-width: 3.6rem; font-size: 0.72rem; }
  .habit-item .habit-text { font-size: 0.88rem; }
}