:root {
    /* カラーパレット */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    
    /* ステータスカラー */
    --status-estimate: #9e9e9e;
    --status-progress: #2196f3;
    --status-payment: #ff9800;
    --status-completed: #4caf50;
    
    /* 背景色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    
    /* テキストカラー */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    
    /* ボーダー */
    --border-color: #e2e8f0;
    --border-radius: 8px;
    
    /* シャドウ */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* スペーシング */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* フォント */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Hiragino Sans', 'Yu Gothic', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
}

/* ヘッダー */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.header-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.user-info {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* コンテナ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

/* カード */
.card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ボタン */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
}

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

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

.btn-danger {
    background-color: var(--error-color);
    color: white;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.85rem;
}

/* フォーム */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-label.required::after {
    content: ' *';
    color: var(--error-color);
}

.form-control {
    width: 100%;
    padding: 0.625rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-family: var(--font-family);
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control:disabled {
    background-color: var(--bg-tertiary);
    cursor: not-allowed;
}

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

select.form-control {
    cursor: pointer;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.form-help {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* テーブル */
.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table thead {
    background-color: var(--bg-tertiary);
}

.table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.table tbody tr:hover {
    background-color: var(--bg-secondary);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.table-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* バッジ */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-estimate {
    background-color: var(--status-estimate);
    color: white;
}

.badge-progress {
    background-color: var(--status-progress);
    color: white;
}

.badge-payment {
    background-color: var(--status-payment);
    color: white;
}

.badge-completed {
    background-color: var(--status-completed);
    color: white;
}

/* 検索バー */
.search-bar {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.search-input {
    flex: 1;
}

/* ダッシュボード統計カード */
.dashboard-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.stat-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

.stat-count {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: bold;
    font-size: 1.1rem;
}

.stat-list {
    max-height: 400px;
    overflow-y: auto;
}

.stat-item {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.2s;
}

.stat-item:hover {
    background-color: var(--bg-secondary);
}

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

.stat-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.repair-number {
    font-weight: bold;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.stat-item-info {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.stat-item-brand {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-item-date {
    font-size: 0.85rem;
    color: #999;
}

.days-badge {
    background: #fef3c7;
    color: #92400e;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.days-badge.urgent {
    background: #fee2e2;
    color: #991b1b;
}

/* モーダル */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

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

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

/* 動的フィールド */
.dynamic-field-group {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    position: relative;
}

.dynamic-field-remove {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
}

/* アラート */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
    border: 1px solid #fcd34d;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
    border: 1px solid #93c5fd;
}

/* ローディング */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* ページネーション */
.pagination {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.pagination button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
}

.pagination button:hover:not(:disabled) {
    background: var(--bg-secondary);
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination button.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* ユーティリティ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-md); }
.hidden { display: none; }

/* レスポンシブ */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .table {
        font-size: 0.85rem;
    }
    
    .table th,
    .table td {
        padding: var(--spacing-sm);
    }
    
    .search-bar {
        flex-direction: column;
    }
    
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
}

/* =========================================
   ダッシュボード統計（プレミアムデザイン）
   ========================================= */

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.03);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
}

/* ヘッダーデザイン */
.stat-header {
    padding: 1.5rem;
    background: #ffffff;
    border-bottom: 1px solid #f1f5f9;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.stat-header::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary-color);
}

.stat-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: #1e293b;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.stat-count {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    background: rgba(37, 99, 235, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
}

/* リストエリア */
.stat-list {
    max-height: 450px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 #f1f5f9;
}

.stat-list::-webkit-scrollbar {
    width: 6px;
}

.stat-list::-webkit-scrollbar-track {
    background: #f1f5f9;
}

.stat-list::-webkit-scrollbar-thumb {
    background-color: #cbd5e1;
    border-radius: 3px;
}

/* リストアイテム */
.stat-item {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid #f8fafc;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

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

.stat-item:hover {
    background-color: #f8fafc;
    padding-left: 1.75rem; /* ホバーで少し右にずれる演出 */
}

.stat-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.repair-number {
    font-family: 'Courier New', monospace;
    font-weight: 600;
    color: #64748b;
    font-size: 0.9rem;
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
}

.stat-item-info {
    font-size: 0.95rem;
}

.stat-item-brand {
    font-weight: 600;
    color: #334155;
    margin-bottom: 0.25rem;
}

.stat-item-date {
    font-size: 0.85rem;
    color: #94a3b8;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* バッジ */
.days-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    background: #e0f2fe;
    color: #0284c7;
    font-weight: 600;
}

.days-badge.urgent {
    background: #fee2e2;
    color: #dc2626;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.4); }
    70% { box-shadow: 0 0 0 6px rgba(220, 38, 38, 0); }
    100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0); }
}

/* レスポンシブ調整（上書き） */
@media (max-width: 768px) {
    .dashboard-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .stat-header {
        padding: 1rem;
    }
    
    .stat-item {
        padding: 1rem;
    }
    
    /* テーブルを2段構造に変更 */
    .table-responsive {
        overflow-x: visible;
    }
    
    .table thead {
        display: none;
    }
    
    .table tbody tr {
        display: block;
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius);
        margin-bottom: 1rem;
        padding: 0.75rem;
        background: white;
    }
    
    .table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.5rem 0;
        border: none;
        border-bottom: 1px solid #f0f0f0;
    }
    
    .table tbody td:last-child {
        border-bottom: none;
        padding-top: 0.75rem;
        justify-content: flex-start;
        gap: 0.5rem;
        flex-wrap: wrap;
    }
    
    .table tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--text-secondary);
        font-size: 0.85rem;
        flex-shrink: 0;
        margin-right: 1rem;
    }
    
    /* ボタンを横並びに */
    .table tbody td:last-child .btn {
        flex: 1;
        min-width: 80px;
        text-align: center;
    }
    
    /* ヘッダーボタンの調整 */
    .header-actions {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .header-actions .btn {
        font-size: 0.85rem;
        padding: 0.4rem 0.8rem;
    }
    
    .user-info {
        display: none;
    }
}