/**
 * 冰箱食材管理系统 - 全局样式
 * 
 * 移动端优先，响应式设计
 */

/* ==================== 基础样式 ==================== */
:root {
    --primary-color: #2563eb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-dark: #111827;
    
    --border-color: #e5e7eb;
    --border-radius: 8px;
    
    --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);
    
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

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

body {
    font-family: var(--font-family);
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== 表单样式 ==================== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

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

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

/* ==================== 工具栏筛选控件（全站统一） ==================== */
.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    margin-right: 8px;
    cursor: pointer;
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-block;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: #1d4ed8;
}

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

.btn-success:hover:not(:disabled) {
    background-color: #059669;
}

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

.btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
}

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

.btn-warning:hover:not(:disabled) {
    background-color: #d97706;
}

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

.btn-info:hover:not(:disabled) {
    background-color: #0891b2;
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: #4b5563;
}

.btn-block {
    width: 100%;
    display: block;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

/* 通用：列表页操作按钮横向排列不换行（页面使用 .action-buttons 时生效） */
.action-buttons {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.action-buttons .btn {
    flex: 0 0 auto;
}

/* 通用：表格"操作"列（编辑/删除）在各端保持一行 */
th.col-actions,
td.col-actions {
    width: 160px;
    white-space: nowrap;
}

/* ==================== 消息提示 ==================== */
.error-message,
.success-message,
.info-message {
    padding: 12px;
    border-radius: var(--border-radius);
    margin-top: 15px;
    font-size: 14px;
}

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

.success-message {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.info-message {
    background-color: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* 浮动消息容器 */
.message-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.message {
    padding: 12px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    font-size: 14px;
    min-width: 200px;
    max-width: 400px;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s;
}

.message--show {
    opacity: 1;
    transform: translateX(0);
}

.message--success {
    background-color: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--success-color);
}

.message--error {
    background-color: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--danger-color);
}

.message--warning {
    background-color: #fef3c7;
    color: #92400e;
    border-left: 4px solid var(--warning-color);
}

.message--info {
    background-color: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--info-color);
}

/* ==================== 容器布局 ==================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* ==================== 表格样式 ==================== */
.table-container {
    width: 100%;
    overflow-x: auto;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th,
table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table th {
    background-color: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

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

/* ==================== 状态徽章 ==================== */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

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

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

.badge-secondary {
    background: #f3f4f6;
    color: #6b7280;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .message-container {
        right: 10px;
        left: 10px;
    }
    
    .message {
        max-width: 100%;
    }
    
    table {
        font-size: 13px;
    }
    
    table th,
    table td {
        padding: 8px;
    }
}

/* ==================== 加载状态 ==================== */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: translateY(-50%) rotate(360deg);
    }
}

/* ==================== 工具类 ==================== */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.mt-10 {
    margin-top: 10px;
}

.mt-20 {
    margin-top: 20px;
}

.mb-10 {
    margin-bottom: 10px;
}

.mb-20 {
    margin-bottom: 20px;
}

.hidden {
    display: none !important;
}

/* ==================== 日期时间（两行） ==================== */
.dt-2line {
    line-height: 1.2;
}
.dt-2line__date {
    font-weight: 700;
}
.dt-2line__time {
    color: #6b7280;
    font-size: 12px;
    margin-top: 4px;
}

/* ==================== 消息提示样式 ==================== */
.message-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 400px;
}

.message {
    padding: 16px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    color: white;
    font-size: 14px;
    font-weight: 500;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 250px;
}

.message::before {
    content: '';
    font-size: 18px;
}

.message--show {
    opacity: 1;
    transform: translateX(0);
}

.message--success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.message--success::before {
    content: '✓';
}

.message--error {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.message--error::before {
    content: '✕';
}

.message--warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.message--warning::before {
    content: '⚠';
}

.message--info {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.message--info::before {
    content: 'ℹ';
}

/* 移动端优化 */
@media (max-width: 768px) {
    .message-container {
        left: 10px;
        right: 10px;
        max-width: none;
    }
    
    .message {
        min-width: auto;
    }
}