/* ========================================
   CSS変数（テーマカラー）
======================================== */
:root {
    /* 背景色 */
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #252525;
    --bg-hover: #2a2a2a;
    
    /* テキスト色 */
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    
    /* アクセントカラー */
    --accent-primary: #4a9eff;
    --accent-secondary: #3d8be0;
    
    /* 種別カラー */
    --color-assignment: #ff9f43;
    --color-exam: #ee5253;
    --color-competition: #10ac84;
    --color-routine: #a55eea;
    
    /* 状態カラー */
    --color-urgent: #ff6b6b;
    --color-warning: #feca57;
    --color-overdue: #ff4757;
    --color-today: #2ed573;
    --color-holiday: #ff6b81;
    
    /* その他 */
    --border-color: #333333;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    --radius: 12px;
    --radius-sm: 8px;
}

/* ========================================
   リセット・ベース
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 
                 'Noto Sans JP', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* ========================================
   ヘッダー
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 16px;
    z-index: 100;
}

.menu-btn {
    width: 44px;
    height: 44px;
    min-width: 44px;
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    padding: 8px;
    position: relative;
    z-index: 110;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.header-title {
    position: absolute;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    pointer-events: none;
    z-index: 105;
}

.header-spacer {
    width: 44px;
    flex-shrink: 0;
}

/* ========================================
   サイドバー（ハンバーガーメニュー）
======================================== */
.sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100vh;
    background-color: var(--bg-secondary);
    z-index: 200;
    transition: left 0.3s ease;
    display: flex;
    flex-direction: column;
}

.sidebar.open {
    left: 0;
}

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

.sidebar-header h2 {
    font-size: 1.2rem;
}

.close-btn {
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.nav-list {
    list-style: none;
    padding: 16px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.nav-item:hover,
.nav-item:active {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    color: var(--accent-primary);
    background-color: rgba(74, 158, 255, 0.1);
}

.nav-icon {
    margin-right: 12px;
    font-size: 1.2rem;
}

/* ========================================
   説明画面（About）
======================================== */
.about-section {
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 16px;
}

.about-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.about-section h2 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.about-section p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.6;
}

.about-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 12px;
    background-color: rgba(74, 158, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--accent-primary);
    font-size: 0.85rem;
}

.about-note {
    margin-top: 12px;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--accent-primary);
    font-size: 0.85rem;
    text-align: center;
}

/* 使い方ステップ */
.usage-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 16px 0;
}

.usage-step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.step-number {
    width: 28px;
    height: 28px;
    min-width: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-primary);
    color: white;
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
}

.step-text {
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* インストールカード */
.install-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
}

.install-card {
    padding: 16px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent-primary);
}

.install-platform {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.install-steps {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* お問い合わせボタン */
.contact-button {
    display: block;
    margin-top: 16px;
    padding: 14px 20px;
    background-color: var(--accent-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    transition: all 0.2s ease;
}

.contact-button:hover {
    background-color: var(--accent-secondary);
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 150;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ========================================
   メインコンテンツ
======================================== */
.main-content {
    padding-top: 56px;
    min-height: 100vh;
}

.view {
    display: none;
    padding: 16px;
    animation: fadeIn 0.3s ease;
}

.view.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ========================================
   ダッシュボード
======================================== */
.stats-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.stat-item {
    flex: 1;
    background-color: var(--bg-secondary);
    padding: 16px;
    border-radius: var(--radius);
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-item.urgent .stat-number {
    color: var(--color-warning);
}

.stat-item.overdue .stat-number {
    color: var(--color-overdue);
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* 予定リスト */
.schedule-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.schedule-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    padding: 16px;
    position: relative;
    transition: transform 0.2s ease;
    display: flex;
    align-items: center;
    gap: 16px;
}

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

/* 期限切れ */
.schedule-card.overdue {
    background-color: rgba(255, 71, 87, 0.15);
    border: 1px solid rgba(255, 71, 87, 0.3);
}

/* 今日 */
.schedule-card.today {
    background-color: rgba(46, 213, 115, 0.15);
    border: 1px solid rgba(46, 213, 115, 0.3);
}

/* 3日以内 */
.schedule-card.urgent {
    background-color: rgba(254, 202, 87, 0.15);
    border: 1px solid rgba(254, 202, 87, 0.3);
}

/* カウントダウン部分（大きく強調） */
.schedule-countdown-box {
    min-width: 70px;
    text-align: center;
    padding: 8px;
    border-radius: var(--radius-sm);
    background-color: var(--bg-tertiary);
}

.countdown-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1;
}

.countdown-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.countdown-overdue .countdown-number { color: var(--color-overdue); }
.countdown-today .countdown-number { color: var(--color-today); }
.countdown-urgent .countdown-number { color: var(--color-warning); }
.countdown-normal .countdown-number { color: var(--text-secondary); }

/* 予定情報部分 */
.schedule-content {
    flex: 1;
    min-width: 0;
}

.schedule-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
    word-break: break-word;
}

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

.schedule-memo {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
}

.schedule-badge {
    font-size: 0.7rem;
    padding: 4px 8px;
    border-radius: 4px;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    white-space: nowrap;
    align-self: flex-start;
}

.schedule-badge.routine { 
    background-color: rgba(165, 94, 234, 0.2); 
    color: var(--color-routine); 
}

/* アクションボタン */
.action-btn {
    padding: 10px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.action-btn.edit {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.action-btn.delete {
    background-color: rgba(255, 71, 87, 0.2);
    color: var(--color-overdue);
}

.action-btn.delete.small {
    padding: 6px 12px;
    font-size: 0.75rem;
}

/* ダッシュボードTODOセクション */
.dashboard-todo-section {
    margin-top: 24px;
    padding: 16px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
}

.section-title {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.dashboard-todo-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dashboard-todo-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.dashboard-todo-item.completed {
    opacity: 0.6;
}

.dashboard-todo-item.completed .dashboard-todo-text {
    text-decoration: line-through;
    color: var(--text-muted);
}

.dashboard-todo-text {
    flex: 1;
    font-size: 0.95rem;
}

/* 空状態 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state p {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.empty-main {
    font-size: 1.2rem !important;
    color: var(--text-primary);
    font-weight: 600;
}

.empty-sub {
    font-size: 1rem !important;
    color: var(--text-secondary);
    margin-bottom: 16px !important;
}

.empty-hint {
    font-size: 0.9rem !important;
    color: var(--accent-primary);
    background-color: var(--bg-secondary);
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    display: inline-block;
}

/* ========================================
   カレンダー
======================================== */
.calendar-container {
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.cal-nav-btn {
    width: 40px;
    height: 40px;
    background-color: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.cal-nav-btn:active {
    background-color: var(--bg-hover);
}

.cal-month-year {
    font-size: 1.1rem;
    font-weight: 600;
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    margin-bottom: 8px;
}

.weekday {
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 8px 0;
}

.weekday.sun { color: var(--color-holiday); }
.weekday.sat { color: var(--accent-primary); }

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

.cal-day {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.9rem;
    position: relative;
    transition: all 0.2s ease;
}

.cal-day:not(.empty):hover {
    background-color: var(--bg-hover);
}

.cal-day.empty {
    cursor: default;
}

.cal-day.today {
    background-color: var(--accent-primary);
    color: white;
    font-weight: 600;
}

.cal-day.selected {
    outline: 2px solid var(--accent-primary);
    outline-offset: -2px;
}

.cal-day.sunday { color: var(--color-holiday); }
.cal-day.saturday { color: var(--accent-primary); }
.cal-day.holiday { color: var(--color-holiday); }
.cal-day.today.sunday,
.cal-day.today.saturday,
.cal-day.today.holiday { color: white; }

.cal-day .holiday-name {
    font-size: 0.5rem;
    position: absolute;
    bottom: 2px;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cal-day .has-schedule {
    width: 6px;
    height: 6px;
    background-color: var(--color-warning);
    border-radius: 50%;
    position: absolute;
    bottom: 4px;
}

.cal-day.today .has-schedule {
    background-color: white;
}

/* 選択日情報 */
.selected-date-info {
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    padding: 16px;
}

.selected-date-info h3 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.date-schedules {
    margin-bottom: 16px;
}

.date-schedule-item {
    padding: 12px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.date-schedule-item:last-child {
    margin-bottom: 0;
}

.date-schedule-content {
    flex: 1;
    min-width: 0;
}

.date-schedule-title {
    font-weight: 600;
    word-break: break-word;
}

.date-schedule-memo {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-word;
}

.date-schedule-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.action-btn.edit.small {
    padding: 6px 12px;
    font-size: 0.75rem;
}

.add-schedule-btn {
    width: 100%;
    padding: 14px;
    background-color: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.add-schedule-btn:active {
    background-color: var(--accent-secondary);
}

/* ========================================
   ルーティーン管理
======================================== */
.routine-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.routine-header h2 {
    font-size: 1.1rem;
}

.add-routine-btn {
    padding: 10px 16px;
    background-color: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
}

.routine-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.routine-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    padding: 16px;
    border-left: 4px solid var(--color-routine);
}

.routine-card.disabled {
    opacity: 0.5;
}

.routine-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.routine-title {
    font-size: 1rem;
    font-weight: 600;
}

.routine-toggle {
    width: 48px;
    height: 28px;
    background-color: var(--bg-tertiary);
    border: none;
    border-radius: 14px;
    position: relative;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.routine-toggle.active {
    background-color: var(--color-routine);
}

.routine-toggle::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    background-color: white;
    border-radius: 50%;
    top: 3px;
    left: 3px;
    transition: transform 0.3s ease;
}

.routine-toggle.active::after {
    transform: translateX(20px);
}

.routine-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.routine-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

/* ========================================
   モーダル
======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 300;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--bg-secondary);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    border-radius: var(--radius) var(--radius) 0 0;
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-small {
    max-height: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-header h3 {
    font-size: 1.2rem;
}

.modal-close {
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.form-group textarea {
    resize: vertical;
}

.weekday-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.weekday-checkboxes label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.weekday-checkboxes input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.form-actions button {
    flex: 1;
    padding: 14px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-cancel {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-save {
    background-color: var(--accent-primary);
    color: white;
}

.btn-delete {
    background-color: var(--color-overdue);
    color: white;
}

.delete-message {
    text-align: center;
    padding: 20px 0;
    color: var(--text-secondary);
}

/* ========================================
   レスポンシブ（タブレット以上）
======================================== */
@media (min-width: 768px) {
    .modal-content {
        border-radius: var(--radius);
        max-width: 480px;
        margin-bottom: auto;
        align-self: center;
    }
    
    .stats-bar {
        max-width: 600px;
    }
    
    .schedule-list {
        max-width: 600px;
    }
    
    .calendar-container {
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .selected-date-info {
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
}

/* ========================================
   TODOリスト
======================================== */
.todo-header {
    margin-bottom: 16px;
}

.todo-header h2 {
    font-size: 1.1rem;
}

.todo-input-area {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.todo-input-area input {
    flex: 1;
    padding: 14px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
}

.todo-input-area input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.add-todo-btn {
    padding: 14px 20px;
    background-color: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}

.todo-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.todo-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.todo-item.completed {
    opacity: 0.6;
}

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

.todo-checkbox {
    width: 24px;
    height: 24px;
    min-width: 24px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.todo-checkbox.checked {
    background-color: var(--color-today);
    border-color: var(--color-today);
}

.todo-checkbox.checked::after {
    content: '✓';
    color: white;
    font-size: 14px;
    font-weight: bold;
}

.todo-text {
    flex: 1;
    font-size: 1rem;
}

.todo-delete {
    padding: 8px 12px;
    background-color: rgba(255, 71, 87, 0.2);
    color: var(--color-overdue);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    cursor: pointer;
}

/* ========================================
   メモ帳
======================================== */
.memo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.memo-header h2 {
    font-size: 1.1rem;
}

.add-memo-btn {
    padding: 10px 16px;
    background-color: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
}

.memo-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.memo-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.memo-card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.memo-card-preview {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.memo-card-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 8px;
}

.memo-card-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

#memoContent {
    min-height: 200px;
    resize: vertical;
}

.modal-large .modal-content {
    max-height: 85vh;
}

/* ========================================
   今日のルーティーン（チェック機能付き）
======================================== */
.today-routines {
    margin-bottom: 24px;
    padding: 16px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
}

.today-routines h3 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--accent-primary);
}

.today-routine-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.today-routine-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-routine);
}

.today-routine-item.completed {
    opacity: 0.6;
    border-left-color: var(--color-today);
}

.today-routine-item.completed .routine-check-title {
    text-decoration: line-through;
    color: var(--text-muted);
}

.routine-checkbox {
    width: 24px;
    height: 24px;
    min-width: 24px;
    border: 2px solid var(--color-routine);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.routine-checkbox.checked {
    background-color: var(--color-today);
    border-color: var(--color-today);
}

.routine-checkbox.checked::after {
    content: '✓';
    color: white;
    font-size: 14px;
    font-weight: bold;
}

.routine-check-title {
    flex: 1;
    font-size: 1rem;
}

/* ========================================
   設定画面
======================================== */
.settings-section {
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
}

.settings-section h2 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.setting-item {
    margin-bottom: 16px;
}

.setting-item label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.setting-item select {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
}

.setting-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.backup-group {
    margin-bottom: 24px;
}

.backup-group:last-child {
    margin-bottom: 0;
}

.backup-group h3 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.backup-textarea {
    width: 100%;
    min-height: 120px;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: monospace;
    resize: vertical;
    margin-bottom: 8px;
}

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

.btn-backup {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    cursor: pointer;
    margin-bottom: 8px;
}

.btn-copy {
    width: 100%;
    padding: 12px;
    background-color: var(--color-today);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
}

#saveSettings {
    width: 100%;
    margin-top: 8px;
}