* { box-sizing: border-box; }

:root {
  --bg: #fdf6f0;
  --card: #ffffff;
  --accent: #e8927c;
  --accent-dark: #d9765d;
  --text: #3a2e2a;
  --text-dim: #8a7a73;
  --border: #f0e0d6;
  --danger: #d9534f;
  --success: #7cb87c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1815;
    --card: #2a2420;
    --accent: #e8927c;
    --accent-dark: #f0a893;
    --text: #f2e9e4;
    --text-dim: #b0a199;
    --border: #3a322c;
  }
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", Segoe UI, Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: contain;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: calc(env(safe-area-inset-top, 0px) + 16px) 20px 14px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.topbar h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
}

#app {
  padding: 16px 16px calc(90px + env(safe-area-inset-bottom, 0px));
  min-height: 100%;
}

.screen[hidden] { display: none; }

/* --- Reminders list --- */
.reminders-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.reminder-card {
  background: var(--card);
  border-radius: 16px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.reminder-card.inactive { opacity: 0.5; }

.reminder-time {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent-dark);
  min-width: 62px;
}

.reminder-info { flex: 1; min-width: 0; }

.reminder-title {
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.reminder-days {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 2px;
}

.reminder-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.icon-btn {
  border: none;
  background: var(--bg);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toggle-switch {
  width: 42px;
  height: 24px;
  border-radius: 12px;
  background: var(--border);
  position: relative;
  border: none;
  flex-shrink: 0;
}

.toggle-switch.on { background: var(--accent); }

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.15s ease;
}

.toggle-switch.on::after { transform: translateX(18px); }

.empty-state {
  text-align: center;
  color: var(--text-dim);
  margin-top: 60px;
  line-height: 1.6;
}

.backup-actions {
  display: flex;
  gap: 10px;
  margin-top: 24px;
}

.backup-actions .btn {
  flex: 1;
  padding: 12px;
  font-size: 14px;
}

.app-version {
  text-align: center;
  color: var(--text-dim);
  font-size: 11px;
  margin-top: 12px;
}

.selection-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card);
  border-radius: 12px;
  padding: 10px 14px;
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 600;
}

.link-btn {
  border: none;
  background: none;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 600;
  padding: 4px;
}

.reminder-card {
  position: relative;
}

.reminder-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--border);
  flex-shrink: 0;
  display: none;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 13px;
}

.reminder-card.selection-mode .reminder-check {
  display: flex;
}

.reminder-card.selection-mode .toggle-switch {
  display: none;
}

.reminder-check.checked {
  background: var(--accent);
  border-color: var(--accent);
}

.reminder-card.selected {
  outline: 2px solid var(--accent);
}

/* --- Form --- */
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}

.field > span {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dim);
}

.field input[type="text"],
.field input[type="time"] {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 16px;
}

.days-picker {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.day-btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 0;
  width: 42px;
  font-size: 13px;
  font-weight: 600;
}

.day-btn.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.alert-mode-picker {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mode-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  text-align: left;
  border: 2px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 14px;
  padding: 14px;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.1s ease;
}

.mode-card:active {
  transform: scale(0.98);
}

.mode-card-icon {
  font-size: 24px;
  line-height: 1;
  flex-shrink: 0;
  width: 32px;
  text-align: center;
}

.mode-card-body {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.mode-card-title {
  font-size: 15px;
  font-weight: 700;
}

.mode-card-desc {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.4;
}

.mode-card.selected {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--card));
}

.mode-card.selected .mode-card-title {
  color: var(--accent-dark);
}

.select-wrap {
  position: relative;
}

.select-wrap::after {
  content: '▾';
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  pointer-events: none;
  font-size: 13px;
}

.field select {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 12px;
  padding: 12px 40px 12px 14px;
  font-size: 16px;
  appearance: none;
  -webkit-appearance: none;
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}

.btn {
  border: none;
  border-radius: 12px;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-secondary { background: var(--card); color: var(--text); border: 1px solid var(--border); }
.btn-danger { background: transparent; color: var(--danger); }

/* --- Tabbar --- */
.tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: 8px 0 calc(8px + env(safe-area-inset-bottom, 0px));
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 11px;
  padding: 4px 16px;
}

.tab-btn.active { color: var(--accent-dark); }
.tab-icon { font-size: 20px; }

.tab-add {
  background: var(--accent);
  color: #fff;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  margin-top: -28px;
  box-shadow: 0 4px 10px rgba(232,146,124,0.4);
}

.tab-add .tab-icon { font-size: 28px; }

/* --- Chart --- */
.chart-week {
  background: var(--card);
  border-radius: 16px;
  padding: 14px 16px;
  margin-bottom: 12px;
}

.chart-week-title {
  font-weight: 600;
  margin-bottom: 10px;
}

.chart-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.chart-cell {
  aspect-ratio: 1;
  border-radius: 8px;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--text-dim);
}

.chart-cell.done { background: var(--success); color: #fff; }
.chart-cell.skipped { background: var(--danger); color: #fff; opacity: 0.7; }
.chart-cell.future { opacity: 0.35; }

.chart-summary {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 8px;
}

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: calc(96px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 14px;
  z-index: 100;
}

.toast[hidden] { display: none; }