/* ============================================
   移动端日历提醒 - 暗色主题样式
   对标 RN App (app_calendar_reminder)
   ============================================ */

:root {
  --bg: #0a0a14;
  --surface: #1a1a2e;
  --surface-variant: #252540;
  --primary: #e8b86d;
  --primary-dim: rgba(232, 184, 109, 0.15);
  --text: #f0f0f0;
  --text-secondary: #8888aa;
  --error: #ff6b6b;
  --success: #4ecdc4;
  --info: #5b9bd5;
  --border: #2a2a44;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --tab-height: 60px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}

/* 主容器：max-width 480px 居中 */
.app-container {
  max-width: 480px;
  margin: 0 auto;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

/* ============================================
   视图容器
   ============================================ */
.view {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px;
  padding-bottom: calc(var(--tab-height) + var(--safe-bottom) + 16px);
  display: none;
  -webkit-overflow-scrolling: touch;
}

.view.active {
  display: block;
}

/* ============================================
   今日视图
   ============================================ */
.today-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.greeting {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 4px;
}

.today-date {
  font-size: 13px;
  color: var(--text-secondary);
}

/* 统计卡片 */
.stats-row {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.stat-card {
  flex: 1;
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 14px 8px;
  text-align: center;
}

.stat-number {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.section-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

/* ============================================
   事件卡片
   ============================================ */
.event-card {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--surface-variant);
  border-radius: var(--radius-lg);
  padding: 14px;
  margin-bottom: 10px;
  transition: transform 0.1s, opacity 0.2s;
}

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

.event-card.completed {
  opacity: 0.55;
}

.event-checkbox {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  border: 2px solid var(--text-secondary);
  margin-right: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s;
}

.event-checkbox:active {
  transform: scale(0.85);
}

.event-checkbox.checked {
  border-color: var(--primary);
  background: var(--primary);
}

.event-checkbox.checked::after {
  content: '✓';
  color: var(--bg);
  font-size: 16px;
  font-weight: 700;
}

.event-body {
  flex: 1;
  min-width: 0;
  cursor: pointer;
}

.event-title {
  font-size: 15px;
  font-weight: 600;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 3px;
}

.event-card.completed .event-title,
.event-card.completed .event-content {
  text-decoration: line-through;
}

.event-content {
  font-size: 13px;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 4px;
}

.event-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}

.event-meta .recurrence-label {
  color: var(--primary);
}

.event-delete {
  padding: 8px;
  margin-left: 4px;
  cursor: pointer;
  color: var(--error);
  font-size: 18px;
  opacity: 0.7;
  transition: opacity 0.15s, transform 0.1s;
}

.event-delete:active {
  opacity: 1;
  transform: scale(0.85);
}

/* ============================================
   空状态
   ============================================ */
.empty-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--text-secondary);
  font-size: 14px;
}

/* 加载指示器 */
.loading-indicator {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
}

.loading-indicator::after {
  content: '';
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-top: 8px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================
   日历视图
   ============================================ */
.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.calendar-nav-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface);
  border: none;
  color: var(--text);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.1s, background 0.15s;
}

.calendar-nav-btn:active {
  transform: scale(0.9);
  background: var(--surface-variant);
}

.calendar-month-title {
  font-size: 18px;
  font-weight: 600;
}

/* 星期标题行 */
.weekday-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  margin-bottom: 8px;
}

.weekday-cell {
  text-align: center;
  font-size: 12px;
  color: var(--text-secondary);
  padding: 4px 0;
}

/* 日历网格 */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  margin-bottom: 16px;
}

.day-cell {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
  transition: background 0.15s, transform 0.1s;
}

.day-cell:active {
  transform: scale(0.9);
}

.day-cell.other-month {
  opacity: 0.3;
}

.day-cell.today .day-number {
  color: var(--primary);
  font-weight: 700;
}

.day-cell.today {
  background: var(--primary-dim);
}

.day-cell.selected {
  border: 2px solid var(--primary);
}

.day-number {
  font-size: 14px;
}

.event-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
  position: absolute;
  bottom: 4px;
}

/* 选中日期事件区 */
.selected-date-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.selected-date-title {
  font-size: 16px;
  font-weight: 600;
}

.selected-date-add {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  border: none;
  color: var(--bg);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.1s;
}

.selected-date-add:active {
  transform: scale(0.85);
}

.no-date-hint {
  text-align: center;
  padding: 32px;
  color: var(--text-secondary);
  font-size: 14px;
}

/* ============================================
   FAB 浮动按钮
   ============================================ */
.fab {
  position: fixed;
  bottom: calc(var(--tab-height) + var(--safe-bottom) + 20px);
  right: calc(50% - 240px + 20px);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  border: none;
  color: var(--bg);
  font-size: 28px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(232, 184, 109, 0.35);
  transition: transform 0.15s;
  z-index: 50;
}

.fab:active {
  transform: scale(0.88);
}

/* 小屏幕时 FAB 靠右 */
@media (max-width: 480px) {
  .fab {
    right: 20px;
  }
}

/* ============================================
   底部 Tab 导航
   ============================================ */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  height: calc(var(--tab-height) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  z-index: 100;
}

.tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color 0.2s;
  border: none;
  background: none;
  font-family: inherit;
}

.tab-item.active {
  color: var(--primary);
}

.tab-item:active {
  opacity: 0.7;
}

.tab-icon {
  font-size: 22px;
}

.tab-label {
  font-size: 11px;
}

/* ============================================
   底部滑出弹窗（事件编辑）
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

.modal-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.modal-sheet {
  width: 100%;
  max-width: 480px;
  max-height: 88vh;
  background: var(--bg);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.32, 0.72, 0, 1);
}

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

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  color: var(--text);
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-title {
  font-size: 17px;
  font-weight: 600;
}

.modal-save-btn {
  border: none;
  background: none;
  color: var(--primary);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: opacity 0.15s;
}

.modal-save-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.modal-save-btn:active:not(:disabled) {
  opacity: 0.7;
}

.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  -webkit-overflow-scrolling: touch;
}

/* 表单字段 */
.form-field {
  margin-bottom: 18px;
}

.form-label {
  font-size: 14px;
  color: var(--text);
  margin-bottom: 8px;
  display: block;
}

.form-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus {
  border-color: var(--primary);
}

.form-input::placeholder {
  color: var(--text-secondary);
}

textarea.form-input {
  min-height: 80px;
  resize: vertical;
}

/* 开关行 */
.switch-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.switch-label {
  font-size: 14px;
}

/* iOS 风格开关 */
.toggle-switch {
  position: relative;
  width: 48px;
  height: 28px;
  cursor: pointer;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 14px;
  transition: background 0.2s;
}

.toggle-switch input:checked + .toggle-track {
  background: var(--primary);
}

.toggle-track::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--text);
  top: 3px;
  left: 3px;
  transition: transform 0.2s;
}

.toggle-switch input:checked + .toggle-track::after {
  transform: translateX(20px);
}

/* 重复选项按钮组 */
.recurrence-options {
  display: flex;
  gap: 8px;
}

.recurrence-btn {
  flex: 1;
  padding: 10px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s;
}

.recurrence-btn.active {
  border-color: var(--primary);
  background: var(--primary-dim);
  color: var(--primary);
  font-weight: 600;
}

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

/* 循环间隔 */
.interval-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.interval-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.1s;
}

.interval-btn:active {
  transform: scale(0.85);
}

.interval-value {
  font-size: 20px;
  font-weight: 600;
  min-width: 32px;
  text-align: center;
}

/* 星期勾选按钮组 */
.weekday-options {
  display: flex;
  gap: 6px;
}

.weekday-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s;
}

.weekday-btn.active {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--bg);
  font-weight: 600;
}

.weekday-btn:active {
  transform: scale(0.85);
}

/* 时间输入 */
input[type="datetime-local"].form-input {
  color-scheme: dark;
}

/* 清除按钮 */
.clear-time-btn {
  display: inline-block;
  margin-left: 10px;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  text-decoration: underline;
}

.clear-time-btn:active {
  color: var(--error);
}

/* ============================================
   删除确认 ActionSheet
   ============================================ */
.action-sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 300;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.action-sheet-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.action-sheet {
  width: 100%;
  max-width: 480px;
  padding: 12px 16px calc(16px + var(--safe-bottom));
  background: var(--surface);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  transform: translateY(100%);
  transition: transform 0.25s cubic-bezier(0.32, 0.72, 0, 1);
}

.action-sheet-overlay.visible .action-sheet {
  transform: translateY(0);
}

.action-sheet-title {
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.action-sheet-btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 8px;
  transition: transform 0.1s, opacity 0.15s;
}

.action-sheet-btn:active {
  transform: scale(0.97);
  opacity: 0.8;
}

.action-sheet-btn.danger {
  background: var(--error);
  color: #fff;
}

.action-sheet-btn.cancel {
  background: var(--surface-variant);
  color: var(--text);
}

/* ============================================
   Toast 提示
   ============================================ */
.toast {
  position: fixed;
  top: 60px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  color: #fff;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  max-width: 90%;
  text-align: center;
}

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

.toast.success {
  background: var(--success);
}

.toast.error {
  background: var(--error);
}

.toast.info {
  background: var(--info);
}

/* ============================================
   隐藏字段（全天时隐藏时间选择等）
   ============================================ */
.hidden {
  display: none !important;
}