/* === Theme variables (defaults overridden by JS at runtime) === */
:root {
  --bg: #ffffff;
  --bg-elev: #f6f7fb;
  --fg: #1f2330;
  --fg-mute: #6b7280;
  --accent: #4a90e2;
  --accent-fg: #ffffff;
  --border: #e3e6ee;
  --carry: #d9534f;
  --done: #9aa3b2;
  --danger: #d9534f;
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
  --radius: 14px;
  --tap: 44px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

body {
  min-height: 100vh;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  transition: background-color 0.4s ease, color 0.4s ease;
}

#app { max-width: 720px; margin: 0 auto; padding: 0 16px 80px; }

/* === Header === */
.app-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 0 12px;
  position: sticky; top: 0; background: var(--bg);
  z-index: 5;
}
.app-header h1 { margin: 0; font-size: 20px; font-weight: 600; }
.header-actions { display: flex; gap: 4px; }

.icon-btn {
  width: var(--tap); height: var(--tap);
  border: none; background: transparent; color: var(--fg);
  font-size: 22px; border-radius: 50%;
  cursor: pointer;
}
.icon-btn:active { background: var(--bg-elev); }

/* === Views === */
[hidden] { display: none !important; }

.done-link {
  display: block;
  text-align: center;
  margin-top: 24px;
  padding: 14px;
  background: var(--bg-elev);
  color: var(--fg-mute);
  text-decoration: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
}
.done-link:active { background: var(--border); }

.remaining {
  margin: 8px 0 14px; padding: 12px 14px;
  background: var(--bg-elev); border-radius: var(--radius);
}
.remaining-text {
  display: flex; align-items: baseline; gap: 8px;
  margin-bottom: 8px; font-size: 13px; color: var(--fg-mute);
}
.remaining-text strong {
  font-size: 22px; color: var(--fg);
  font-variant-numeric: tabular-nums;
}
.remaining-text .hint { font-size: 11px; }
.progress-bar {
  height: 8px; border-radius: 4px;
  background: var(--border); overflow: hidden;
}
.progress-fill {
  height: 100%; background: var(--accent);
  transition: width 0.3s ease; width: 0%;
}

/* === Section === */
.task-section { margin-top: 18px; }
.section-title {
  font-size: 14px; font-weight: 600; color: var(--fg-mute);
  margin: 0 0 8px; display: flex; align-items: center; gap: 8px;
}
.count-badge {
  background: var(--bg-elev); color: var(--fg-mute);
  padding: 2px 8px; border-radius: 999px; font-size: 12px;
}
.empty-msg { color: var(--fg-mute); padding: 12px 4px; font-size: 14px; }

/* === Task list === */
.task-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }

.task-item {
  background: var(--bg-elev);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex; align-items: center; gap: 12px;
  border: 2px solid transparent;
  transition: background-color 0.15s, border-color 0.15s, transform 0.1s;
  user-select: none;
}
.task-item { cursor: pointer; }
.task-item:active { transform: scale(0.99); opacity: 0.85; }

.task-item.carried {
  border-color: var(--carry);
  background: color-mix(in srgb, var(--carry) 10%, var(--bg-elev));
}
.task-item.overdue {
  border-color: var(--overdue);
  background: color-mix(in srgb, var(--overdue) 10%, var(--bg-elev));
}
.task-item.overdue .task-time { color: var(--overdue); }
.task-item.in-progress {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, var(--bg-elev));
}

.task-time {
  font-variant-numeric: tabular-nums;
  font-weight: 600; font-size: 15px;
  min-width: 48px; color: var(--fg-mute);
}
.task-item.in-progress .task-time { color: var(--accent); }

.task-main { flex: 1; min-width: 0; }
.task-name { font-size: 16px; font-weight: 500; }
.task-meta {
  font-size: 12px; color: var(--fg-mute); margin-top: 2px;
  display: flex; gap: 10px; flex-wrap: wrap;
}
.task-meta .carry-tag { color: var(--carry); font-weight: 600; }

.task-actions { display: flex; gap: 6px; }
.task-action {
  min-width: 64px; height: 36px;
  border-radius: 10px; border: none;
  background: var(--accent); color: var(--accent-fg);
  font-weight: 600; font-size: 14px;
  cursor: pointer;
}
.task-action.secondary { background: var(--bg); color: var(--fg); border: 1px solid var(--border); }
.task-action.danger { background: transparent; color: var(--danger); }

.done-list .task-item { opacity: 0.65; }
.done-list .task-name { text-decoration: line-through; color: var(--done); }

.live-timer { font-variant-numeric: tabular-nums; color: var(--accent); font-weight: 600; }

/* === Stats table === */
.stats-toolbar, .settings-toolbar { padding: 8px 0 4px; }
.stats-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.stats-table th, .stats-table td {
  text-align: left; padding: 10px 6px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.stats-table th { color: var(--fg-mute); font-weight: 600; }
.stats-table td.num { font-variant-numeric: tabular-nums; }

/* === Settings === */
.settings-section { margin-top: 24px; }
.settings-section .hint { color: var(--fg-mute); font-size: 12px; margin: 4px 0 10px; }
.row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 0; border-bottom: 1px solid var(--border);
}
.row input[type="number"] { width: 80px; }

#theme-config { display: flex; flex-direction: column; gap: 10px; }
.theme-row {
  display: grid; grid-template-columns: 60px 1fr 90px 60px;
  align-items: center; gap: 10px;
  padding: 10px; background: var(--bg-elev); border-radius: 10px;
}
.theme-row .label { font-weight: 600; }
.theme-row input[type="time"] { width: 100%; }
.theme-row input[type="color"] { width: 100%; height: 36px; border: none; padding: 0; background: transparent; cursor: pointer; }

.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }
.primary-btn, .secondary-btn, .text-btn {
  min-height: var(--tap);
  padding: 0 18px; border-radius: 10px; border: none;
  font-size: 15px; font-weight: 600; cursor: pointer;
}
.primary-btn { background: var(--accent); color: var(--accent-fg); }
.secondary-btn { background: var(--bg-elev); color: var(--fg); }
.text-btn { background: transparent; color: var(--fg); padding: 0 6px; }

.manage-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.manage-list li {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--bg-elev); padding: 10px 14px; border-radius: 10px;
}
.manage-list li.tappable { cursor: pointer; }
.manage-list li.tappable:active { opacity: 0.7; }
.manage-list .name { font-weight: 500; }
.manage-list .recur { font-size: 12px; color: var(--fg-mute); }

/* === Modal === */
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: flex-end; justify-content: center;
  z-index: 20;
  animation: fade 0.18s ease;
}
.modal[hidden] { display: none; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.modal-content {
  background: var(--bg);
  width: 100%; max-width: 560px;
  border-radius: 18px 18px 0 0;
  padding: 20px 18px calc(20px + env(safe-area-inset-bottom));
  max-height: 90vh; overflow-y: auto;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
}
.modal-content.small { border-radius: 18px; max-width: 360px; margin-bottom: 30vh; }
.modal-content h2 { margin: 0 0 14px; font-size: 18px; }

.field { display: block; margin-bottom: 14px; }
.field > span { display: block; font-size: 13px; color: var(--fg-mute); margin-bottom: 4px; font-weight: 600; }
.field input[type="text"], .field input[type="number"], .field input[type="time"], .field select {
  width: 100%; height: var(--tap);
  padding: 0 12px; border: 1px solid var(--border); border-radius: 10px;
  background: var(--bg); color: var(--fg); font-size: 16px;
}

.month-week-row { display: flex; gap: 8px; }
.month-week-row select { flex: 1; }
.weekday-row { display: flex; gap: 4px; flex-wrap: wrap; }
.weekday-row label {
  flex: 1; min-width: 38px;
  display: flex; flex-direction: column; align-items: center;
  padding: 6px 4px; border-radius: 8px; background: var(--bg-elev);
  cursor: pointer; font-size: 13px;
}
.weekday-row input { display: none; }
.weekday-row label:has(input:checked) { background: var(--accent); color: var(--accent-fg); }

.overrides-grid { display: grid; grid-template-columns: 1fr; gap: 6px; margin-top: 6px; }
.override-row {
  display: grid; grid-template-columns: 32px 1fr 32px;
  align-items: center; gap: 8px;
  padding: 8px 10px; background: var(--bg-elev); border-radius: 8px;
}
.override-row .wd { font-size: 14px; color: var(--fg-mute); font-weight: 600; }
.override-row .clear-ov {
  width: 32px; height: 32px; border: none; background: transparent;
  color: var(--fg-mute); font-size: 18px; cursor: pointer; border-radius: 50%;
}
.override-row .ov-placeholder {
  flex: 1; padding: 10px; border: 1px dashed var(--border);
  background: transparent; color: var(--fg-mute); font-size: 13px;
  border-radius: 8px; cursor: pointer; text-align: center;
}
.override-row .ov-placeholder:active { background: var(--border); }

/* === Time picker (selects) === */
.time-picker { display: flex; align-items: center; gap: 6px; }
.time-picker select {
  flex: 1; max-width: 110px;
  height: var(--tap);
  padding: 0 12px;
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--bg); color: var(--fg);
  font-size: 17px; font-variant-numeric: tabular-nums;
  text-align: center; text-align-last: center;
  appearance: none; -webkit-appearance: none;
}
.time-picker .tp-colon { font-size: 18px; color: var(--fg-mute); font-weight: 600; }

.modal-actions { display: flex; gap: 8px; align-items: center; margin-top: 18px; }
.modal-actions .spacer { flex: 1; }
.modal-actions .text-btn { color: var(--danger); }