/**
 * 移动端响应式样式库 - 小灰人 AI 机器人
 * 适用于所有管理后台页面
 */

/* ========== 基础设置 ========== */
:root {
    --primary-color: #0ea5e9;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    --bg-dark: #0b1a2e;
    --bg-card: rgba(30, 50, 70, 0.6);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
}

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

body {
    background: linear-gradient(145deg, #0b1a2e 0%, #1a2f3f 100%);
    min-height: 100vh;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== 顶部导航栏 ========== */
.mobile-header {
    background: rgba(10, 25, 40, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 16px;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.header-title {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}

.header-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* ========== 通用按钮样式 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    outline: none;
    text-decoration: none;
    white-space: nowrap;
}

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

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

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

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

/* ========== 卡片容器 ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px;
}

.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* ========== 表单元素 ========== */
.form-control,
.form-select,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="search"],
textarea,
select {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: all 0.2s;
}

.form-control:focus,
.form-select:focus,
input:focus,
textarea:focus,
select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

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

/* ========== 筛选工具栏 ========== */
.filter-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    background: var(--bg-card);
    padding: 12px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.filter-bar > * {
    flex: 1;
    min-width: 120px;
}

/* ========== 表格样式（桌面端） ========== */
.table-responsive {
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

.table {
    width: 100%;
    margin: 0;
    border-collapse: collapse;
    color: var(--text-primary);
}

.table thead th {
    background: rgba(0, 0, 0, 0.3);
    padding: 14px 16px;
    font-weight: 600;
    font-size: 14px;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.table tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    vertical-align: middle;
    font-size: 14px;
}

.table tbody tr:hover {
    background: rgba(14, 165, 233, 0.05);
}

/* ========== 移动端卡片列表 ========== */
.mobile-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mobile-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
    transition: all 0.2s;
}

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

.mobile-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-card-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}

.mobile-card-footer {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ========== 状态标签 ========== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    gap: 4px;
}

.badge-pending {
    background: rgba(245, 158, 11, 0.15);
    color: #fcd34d;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: #a7f3d0;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-info {
    background: rgba(56, 189, 248, 0.15);
    color: #bae6fd;
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #fcd34d;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #fecaca;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-secondary {
    background: rgba(107, 114, 128, 0.15);
    color: #d1d5db;
    border: 1px solid rgba(107, 114, 128, 0.3);
}

/* ========== 分页控件 ========== */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
    padding: 12px 0;
}

.page-btn {
    background: rgba(14, 165, 233, 0.15);
    border: 1px solid rgba(14, 165, 233, 0.3);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 10px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.page-btn:active:not(:disabled) {
    background: rgba(14, 165, 233, 0.3);
    transform: scale(0.95);
}

.page-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.page-info {
    color: var(--text-secondary);
    font-size: 13px;
    white-space: nowrap;
}

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

.empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.empty-text {
    font-size: 16px;
    margin-bottom: 8px;
}

.empty-subtext {
    font-size: 14px;
    opacity: 0.7;
}

/* ========== 加载动画 ========== */
.loading-state {
    text-align: center;
    padding: 40px 20px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(14, 165, 233, 0.2);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

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

.loading-text {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ========== 模态框 ========== */
.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 16px 20px;
}

.modal-title {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 16px 20px;
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========== 消息提示 ========== */
.alert {
    padding: 12px 16px;
    border-radius: 12px;
    margin-bottom: 16px;
    border: 1px solid;
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
    color: #93c5fd;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: #6ee7b7;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
    color: #fcd34d;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

/* ========== 响应式断点 ========== */

/* 平板和手机 (< 768px) */
@media (max-width: 768px) {
    .container {
        padding: 12px;
    }
    
    .card {
        padding: 16px;
    }
    
    /* 隐藏桌面表格，显示移动端卡片 */
    .table-responsive {
        display: none;
    }
    
    .mobile-only {
        display: block !important;
    }
    
    .desktop-only {
        display: none !important;
    }
    
    /* 筛选栏优化 */
    .filter-bar {
        flex-direction: column;
    }
    
    .filter-bar > * {
        width: 100%;
    }
    
    /* 分页优化 */
    .pagination {
        flex-direction: column;
        align-items: stretch;
    }
    
    .page-btn {
        text-align: center;
    }
    
    /* 按钮组垂直排列 */
    .btn-group-vertical,
    .btn-group {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
    
    /* 模态框优化 */
    .modal-dialog {
        margin: 16px;
    }
    
    .modal-content {
        border-radius: 16px;
    }
}

/* 大桌面 (> 1200px) */
@media (min-width: 1200px) {
    .mobile-only {
        display: none !important;
    }
    
    .desktop-only {
        display: block !important;
    }
}

/* ========== 工具类 ========== */
.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 4px !important; }
.mb-2 { margin-bottom: 8px !important; }
.mb-3 { margin-bottom: 12px !important; }
.mb-4 { margin-bottom: 16px !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 4px !important; }
.mt-2 { margin-top: 8px !important; }
.mt-3 { margin-top: 12px !important; }
.mt-4 { margin-top: 16px !important; }

.d-flex { display: flex !important; }
.flex-column { flex-direction: column !important; }
.justify-between { justify-content: space-between !important; }
.align-center { align-items: center !important; }
.gap-1 { gap: 4px !important; }
.gap-2 { gap: 8px !important; }
.gap-3 { gap: 12px !important; }

.w-100 { width: 100% !important; }
.flex-1 { flex: 1 !important; }

/* ========== 动画 ========== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.slide-up {
    animation: slideUp 0.4s ease;
}