/* ============================================
   Habit Tracker — style.css v4
   全機能対応版
   ============================================ */

/* ---- CSS Variables ---- */
:root {
  --bg-deep: #0a1a12;
  --bg-primary: #0f2318;
  --bg-card: #142e1f;
  --bg-card-hover: #193825;
  --bg-surface: #1a3d28;
  --bg-input: #0d1f15;
  --accent: #4ade80;
  --accent-dim: #22c55e;
  --accent-glow: rgba(74, 222, 128, 0.12);
  --fire-glow: rgba(249, 115, 22, 0.15);
  --text-primary: #e8f5e9;
  --text-secondary: #a8d5ba;
  --text-muted: #5a8a6a;
  --text-dim: #3a6a4a;
  --border: rgba(74, 222, 128, 0.08);
  --border-accent: rgba(74, 222, 128, 0.2);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 100px;
  --transition: all 0.2s ease;
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.15);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* ---- Reset ---- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', 'Noto Sans JP', -apple-system, sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

input,
button,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  touch-action: manipulation;
}

/* ---- App Container ---- */
#app {
  max-width: 100vw;
  min-height: 100dvh;
  position: relative;
}

.view {
  display: none;
  flex-direction: column;
  min-height: 100dvh;
}

.view.active {
  display: flex;
}

/* ---- Header ---- */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(var(--safe-top) + 12px) 20px 10px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.header-year {
  font-size: 0.7rem;
  color: var(--accent-dim);
  font-weight: 600;
}

.header-date-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.header-month {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
}

.header-day {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
}

.header-weekday {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.stats-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--accent-glow);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.icon-btn:active {
  background: var(--bg-surface);
  transform: scale(0.92);
}

.streak-badge {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.85rem;
  transition: var(--transition);
}

.streak-icon {
  font-size: 1rem;
}

.streak-count {
  color: var(--accent);
}

/* ---- Stats Nav Arrows ---- */
.stats-nav-arrows {
  display: flex;
  gap: 6px;
}

.arrow-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.arrow-btn:active {
  background: var(--bg-surface);
  transform: scale(0.92);
}

/* ---- Week Calendar ---- */
.week-calendar {
  display: flex;
  justify-content: space-around;
  padding: 12px 12px 8px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
}

.week-day {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: var(--radius-md);
  transition: var(--transition);
  min-width: 40px;
}

.week-day:active {
  transform: scale(0.93);
}

.week-day-label {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.week-day-num-wrap {
  position: relative;
  width: 34px;
  height: 34px;
}

.day-ring {
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 34px;
  pointer-events: none;
}

.week-day-num {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: 50%;
  transition: var(--transition);
  position: relative;
  z-index: 1;
}

.week-day.today .week-day-num {
  color: var(--accent);
  font-weight: 700;
  background: rgba(74, 222, 128, 0.1);
}

.week-day.today.all-complete .week-day-num {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: 0 0 16px rgba(74, 222, 128, 0.3);
}

.week-day.selected .week-day-num {
  border: 2px solid var(--accent);
  color: var(--accent);
}

.week-day.today.selected .week-day-num {
  border: none;
  color: var(--accent);
  background: rgba(74, 222, 128, 0.1);
}

.week-day.today.selected.all-complete .week-day-num {
  background: var(--accent);
  color: var(--bg-deep);
}

.week-day.has-complete .week-day-label {
  color: var(--accent-dim);
}

.week-day.all-complete .week-day-label {
  color: var(--accent);
}

/* ---- Filter Bar ---- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}

.filter-bar::-webkit-scrollbar {
  display: none;
}

.filter-chip {
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.filter-chip.active {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: var(--border-accent);
}

.filter-chip:active {
  transform: scale(0.95);
}

/* ---- Task List ---- */
.task-list {
  flex: 1;
  padding: 4px 16px 140px;
  /* Extra bottom padding for FAB */
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.task-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  transition: var(--transition);
  position: relative;
  -webkit-user-select: none;
  user-select: none;
}

.task-item.checked {
  opacity: 0.6;
}

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

.task-timing {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  letter-spacing: 0.3px;
  border: 1px solid var(--border-accent);
}

.task-center {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  cursor: pointer;
  flex: 1;
}

.task-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  gap: 4px;
}

.task-custom-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  object-fit: contain;
  flex-shrink: 0;
}

.task-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.task-category-tag {
  font-size: 0.65rem;
  color: var(--text-muted);
  background: var(--bg-surface);
  padding: 1px 6px;
  border-radius: 4px;
}

.task-link-icon {
  font-size: 0.7rem;
  color: var(--accent-dim);
  opacity: 0.7;
}

.task-notify-badge {
  font-size: 0.6rem;
  color: var(--accent-dim);
  background: rgba(249, 115, 22, 0.1);
  padding: 1px 5px;
  border-radius: 4px;
}

/* Weekly progress */
.weekly-progress {
  display: flex;
  align-items: center;
  gap: 3px;
  margin-top: 2px;
}

.weekly-dots {
  display: flex;
  gap: 2px;
}

.weekly-dot {
  font-size: 0.5rem;
  color: var(--text-dim);
  line-height: 1;
  transition: color 0.2s;
}

.weekly-dot.done {
  color: var(--accent);
}

.weekly-label {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-left: 3px;
}

.weekly-progress.complete .weekly-label {
  color: var(--accent);
}

/* Task right */
.task-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.task-streak-mini {
  display: flex;
  align-items: center;
  gap: 2px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #f97316;
}

.mini-fire {
  font-size: 0.65rem;
}

.check-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--text-dim);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.check-btn svg {
  width: 18px;
  height: 18px;
  stroke: transparent;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  transition: var(--transition);
}

.check-btn.checked {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(74, 222, 128, 0.3);
}

.check-btn.checked svg {
  stroke: var(--bg-deep);
}

.check-btn:active {
  transform: scale(0.88);
}

.task-edit-hint {
  position: absolute;
  bottom: 2px;
  right: 12px;
  font-size: 0.55rem;
  color: var(--text-dim);
  opacity: 0;
  transition: opacity 0.3s;
}

.task-item:hover .task-edit-hint {
  opacity: 1;
}

/* Empty state */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  gap: 8px;
}

.empty-icon {
  font-size: 3rem;
}

.empty-state p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.empty-sub {
  font-size: 0.75rem !important;
  color: var(--text-dim) !important;
}

/* ---- Bottom Nav ---- */
.bottom-nav {
  display: flex;
  justify-content: space-around;
  align-items: center;
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 8px 0 calc(var(--safe-bottom) + 8px);
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 20;
}

.nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 16px;
  border-radius: var(--radius-md);
  color: var(--text-dim);
  transition: var(--transition);
  font-size: 0.65rem;
  font-weight: 600;
}

.nav-btn svg {
  stroke: var(--text-dim);
  transition: var(--transition);
}

.nav-btn.active {
  color: var(--accent);
}

.nav-btn.active svg {
  stroke: var(--accent);
}

.nav-btn:active {
  transform: scale(0.9);
}

/* ---- FAB ---- */
.fab {
  position: fixed;
  bottom: calc(var(--safe-bottom) + 70px);
  right: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(74, 222, 128, 0.35);
  z-index: 25;
  transition: var(--transition);
}

.fab:active {
  transform: scale(0.9);
}

.fab svg {
  stroke: var(--bg-deep);
}

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-primary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 20px 16px calc(var(--safe-bottom) + 16px);
  transform: translateY(100%);
  transition: transform 0.3s ease;
  border: 1px solid var(--border);
  border-bottom: none;
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.modal-header h2 {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-surface);
  color: var(--text-muted);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Form */
.form-group {
  margin-bottom: 10px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.required {
  color: #ef4444;
}

.input-with-emoji {
  display: flex;
  align-items: center;
  gap: 8px;
}

.emoji-picker-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

input[type="text"],
input[type="url"],
input[type="number"],
input[type="date"],
input[type="time"] {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(74, 222, 128, 0.1);
}

.freq-input {
  width: 80px !important;
}

.time-input {
  width: auto;
}

::placeholder {
  color: var(--text-dim);
}

.timing-options,
.frequency-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.radio-chip {
  display: flex;
  align-items: center;
  cursor: pointer;
}

.radio-chip input {
  display: none;
}

.radio-chip span {
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: var(--transition);
}

.radio-chip input:checked+span {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: var(--border-accent);
}

/* Custom icon row */
.custom-icon-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.custom-icon-preview {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  color: var(--text-dim);
  flex-shrink: 0;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  overflow: hidden;
}

.btn-sm {
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid var(--border-accent);
  transition: var(--transition);
  white-space: nowrap;
}

.btn-sm:active {
  transform: scale(0.95);
}

.btn-sm-dim {
  color: var(--text-muted);
  background: var(--bg-card);
  border-color: var(--border);
}

.btn-submit {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-lg);
  background: var(--accent);
  color: var(--bg-deep);
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
  margin-top: 8px;
}

.btn-submit:active {
  transform: scale(0.97);
  opacity: 0.9;
}

.form-actions-row {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.btn-delete {
  flex: 1;
  padding: 14px;
  border-radius: var(--radius-lg);
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid rgba(239, 68, 68, 0.2);
  transition: var(--transition);
}

.btn-delete:active {
  transform: scale(0.97);
}

.form-actions-row .btn-submit {
  flex: 2;
}

/* ---- Emoji Panel ---- */
.emoji-panel {
  margin-top: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px;
  max-height: 200px;
  overflow: hidden;
}

.emoji-cats {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 4px;
}

.emoji-cats::-webkit-scrollbar {
  display: none;
}

.emoji-cat-btn {
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  background: var(--bg-surface);
  border: 1px solid transparent;
  transition: var(--transition);
  flex-shrink: 0;
}

.emoji-cat-btn.active {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.emoji-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  max-height: 140px;
  overflow-y: auto;
}

.emoji-grid span {
  font-size: 1.3rem;
  text-align: center;
  padding: 4px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}

.emoji-grid span:hover {
  background: var(--bg-surface);
}

/* ---- Calendar View ---- */
.cal-content {
  flex: 1;
  padding: 16px 16px 140px;
  overflow-y: auto;
}

.cal-weekday-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  padding: 8px 0;
  margin-bottom: 4px;
}

.cal-weekday-row span {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
}

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.cal-cell {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.cal-cell.empty {
  background: transparent;
  border: none;
  cursor: default;
}

.cal-cell:not(.empty):active {
  transform: scale(0.93);
}

.cal-cell.today {
  border-color: var(--accent);
  background: rgba(74, 222, 128, 0.08);
}

.cal-cell.today .cal-day-num {
  color: var(--accent);
  font-weight: 700;
}

.cal-cell.all-complete {
  background: rgba(74, 222, 128, 0.15);
}

.cal-cell.has-complete {
  background: rgba(74, 222, 128, 0.06);
}

.cal-day-num {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.cal-dot {
  font-size: 0.5rem;
  line-height: 1;
  position: absolute;
  bottom: 3px;
}

.cal-dot.scheduled {
  color: #f97316;
}

.cal-dot.done {
  color: var(--accent-dim);
}

.cal-dot.all-done {
  color: var(--accent);
  font-size: 0.55rem;
}

/* ---- Day Detail ---- */
.detail-section-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin: 12px 0 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.detail-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
  font-size: 0.85rem;
}

.detail-item.done {
  opacity: 0.6;
  text-decoration: line-through;
}

.detail-badge {
  font-size: 0.6rem;
  background: var(--accent-glow);
  color: var(--accent);
  padding: 1px 6px;
  border-radius: var(--radius-full);
  margin-left: auto;
}

.detail-check {
  margin-left: auto;
}

.detail-check.dim {
  color: var(--text-dim);
}

/* ---- Settings ---- */
.settings-modal {
  max-height: 85vh;
}

.settings-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.settings-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.settings-section h3 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.settings-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.settings-note {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.settings-btn-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.settings-sub-section {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.settings-sub-section h4 {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

/* Settings Tabs */
.settings-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  overflow-x: auto;
  scrollbar-width: none;
}

.settings-tabs::-webkit-scrollbar {
  display: none;
}

.settings-tab {
  flex: 1;
  padding: 8px 4px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
}

.settings-tab.active {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: var(--border-accent);
}

.settings-panel {
  animation: fadeIn 0.2s ease;
}

.settings-panel h4 {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.settings-divider {
  height: 1px;
  background: var(--border);
  margin: 14px 0;
}

/* Theme Presets */
.theme-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.theme-dot {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 2px solid transparent;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  transition: var(--transition);
  position: relative;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.theme-dot.active {
  border-color: #fff;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.25);
}

.theme-dot span {
  font-size: 0.5rem;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
  margin-bottom: 4px;
  font-weight: 700;
}

/* Color Picker */
.color-picker {
  margin-bottom: 8px;
}

.picker-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.picker-preview {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 2px solid var(--border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.picker-sliders {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.picker-sliders label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 600;
  white-space: nowrap;
}

.picker-sliders input[type="range"] {
  flex: 1;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-surface);
  border-radius: 2px;
  outline: none;
}

.picker-sliders input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--bg-deep);
}

/* Saved Colors */
.saved-colors {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.saved-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  transition: var(--transition);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
  cursor: pointer;
}

.saved-dot:hover {
  border-color: #fff;
  transform: scale(1.15);
}

/* Custom Messages */
.msg-input-row {
  display: flex;
  gap: 6px;
  margin: 8px 0;
}

.msg-input-row input {
  flex: 1;
  font-size: 0.8rem;
}

.custom-msg-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 180px;
  overflow-y: auto;
}

.msg-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.msg-del {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  font-size: 0.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}

.msg-del:active {
  transform: scale(0.85);
}

/* Task Size */
.task-size-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.task-size-row input[type="range"] {
  flex: 1;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-surface);
  border-radius: 2px;
  outline: none;
}

.task-size-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--bg-deep);
}

/* Task scale */
.task-item {
  transform: scale(var(--task-scale, 1));
  transform-origin: center left;
}

.bg-preview-box {
  width: 100%;
  height: 100px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  margin-bottom: 8px;
  overflow: hidden;
}

.bg-placeholder {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ---- Stats ---- */
.stats-content {
  flex: 1;
  padding: 16px 16px 100px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

.stats-overview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 10px;
  text-align: center;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.chart-title {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 12px;
}

#daily-chart {
  width: 100%;
}

.task-stat-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.task-stat-row:last-child {
  border-bottom: none;
}

.task-stat-name {
  font-size: 0.8rem;
  font-weight: 600;
  min-width: 80px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.task-stat-bar-bg {
  flex: 1;
  height: 8px;
  background: var(--bg-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.task-stat-bar {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  transition: width 0.6s ease;
}

.task-stat-pct {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 35px;
  text-align: right;
}

.stats-empty {
  text-align: center;
  color: var(--text-dim);
  padding: 20px;
  font-size: 0.85rem;
}

/* ---- Toast ---- */
.toast {
  position: fixed;
  bottom: calc(var(--safe-bottom) + 80px);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-accent);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 200;
}

.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ---- Check Particles ---- */
.check-particle {
  position: fixed;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent), 0 0 12px var(--accent);
  pointer-events: none;
  z-index: 500;
  animation: particleBurst 0.5s ease-out forwards;
}

@keyframes particleBurst {
  0% {
    opacity: 1;
    transform: translate(0, 0) scale(1);
  }

  100% {
    opacity: 0;
    transform: translate(var(--dx, 20px), var(--dy, -20px)) scale(0.3);
  }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--text-dim);
  border-radius: 2px;
}

/* ---- Touch ---- */
@media (hover: none) {
  .task-item {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    -webkit-user-select: none;
  }
}

/* ---- PC Responsive ---- */
@media (min-width: 768px) {
  body {
    display: flex;
    justify-content: center;
    background: #060f0a;
  }

  #app {
    max-width: 430px;
    width: 430px;
    min-height: 100dvh;
    position: relative;
    box-shadow: 0 0 60px rgba(0, 0, 0, 0.5);
    background: var(--bg-deep);
  }

  .bottom-nav {
    max-width: 430px;
    left: 50%;
    transform: translateX(-50%);
  }

  .fab {
    right: calc(50% - 195px);
  }

  .task-item:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-accent);
  }

  .check-btn:hover {
    border-color: var(--accent);
  }

  .fab:hover {
    box-shadow: 0 6px 28px rgba(74, 222, 128, 0.5);
    transform: scale(1.05);
  }

  .fab:active {
    transform: scale(0.9);
  }

  .icon-btn:hover {
    background: var(--bg-surface);
    color: var(--accent);
  }

  .filter-chip:hover {
    background: var(--bg-surface);
  }

  .cal-cell:not(.empty):hover {
    background: var(--bg-surface);
    border-color: var(--border-accent);
  }
}

@media (min-width: 1200px) {
  .fab {
    right: calc(50% - 195px);
  }
}

/* ---- Daily Progress Bar ---- */
.daily-progress {
  padding: 8px 16px;
  margin: 0 8px 4px;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.progress-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
}

.progress-count {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
}

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

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.4s ease;
  width: 0;
}

.daily-progress.complete .progress-fill {
  background: linear-gradient(90deg, var(--accent), #fbbf24);
  box-shadow: 0 0 8px var(--accent);
}

.daily-progress.complete .progress-count {
  color: var(--accent);
}

/* ---- Confetti Canvas ---- */
#confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 600;
  pointer-events: none;
  display: none;
}

/* ---- Memo ---- */
.memo-textarea {
  width: 100%;
  min-height: 70px;
  padding: 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
  resize: vertical;
  transition: border-color 0.2s;
  margin-bottom: 12px;
  box-sizing: border-box;
}

.memo-textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.task-memo-line {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 3px;
  padding: 2px 6px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  line-height: 1.4;
}

/* ---- Category Group ---- */
.category-group {
  margin-bottom: 8px;
}

.category-group-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  cursor: pointer;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 4px;
  transition: var(--transition);
  user-select: none;
  -webkit-user-select: none;
}

.category-group-header:hover {
  background: var(--bg-card-hover);
}

.category-group-header::before {
  content: '▼';
  font-size: 0.6rem;
  margin-right: 8px;
  color: var(--text-muted);
  transition: transform 0.2s;
}

.category-group.collapsed .category-group-header::before {
  transform: rotate(-90deg);
}

.category-group-name {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  flex: 1;
}

.category-group-count {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-weight: 600;
}

.category-group-body {
  transition: max-height 0.3s ease, opacity 0.2s ease;
  overflow: hidden;
}

.category-group.collapsed .category-group-body {
  max-height: 0 !important;
  opacity: 0;
  pointer-events: none;
}

/* ---- Drag Handle ---- */
.drag-handle {
  font-size: 1rem;
  color: var(--text-muted);
  cursor: grab;
  padding: 0 6px;
  opacity: 0.4;
  transition: opacity 0.2s;
  user-select: none;
  -webkit-user-select: none;
}

.drag-handle:hover {
  opacity: 1;
}

.task-item.dragging {
  opacity: 0.4;
  border-color: var(--accent);
}

.task-item.drag-over {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}