/* =====================================================
   家有灵犀 · components.css
   卡片、按钮、徽章、表格、Tab 等组件
   ===================================================== */

/* ---------- 卡片 ---------- */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border-light);
    overflow: hidden;
}

.card-header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
}

.card-body {
    padding: var(--space-5);
}

.card-footer {
    padding: var(--space-3) var(--space-5);
    border-top: 1px solid var(--color-border-light);
    background: var(--color-bg-alt);
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 9px 18px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: all var(--transition-fast);
    white-space: nowrap;
    line-height: 1.4;
    user-select: none;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: #FFFFFF;
    box-shadow: var(--shadow-purple);
}

.btn-primary:hover:not(:disabled) {
    background: var(--gradient-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 10px 24px -4px rgba(107, 70, 193, 0.35);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--color-surface-hover);
    border-color: var(--color-primary-light);
}

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

.btn-ghost:hover:not(:disabled) {
    background: var(--color-surface-hover);
    color: var(--color-text);
}

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

.btn-danger:hover:not(:disabled) {
    background: #DC2626;
}

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

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

.btn-sm {
    padding: 5px 12px;
    font-size: 13px;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 15px;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    padding: 8px;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
}

/* ---------- 徽章 ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-full);
    line-height: 1.4;
}

.badge-success { background: rgba(16, 185, 129, 0.12); color: var(--color-success); }
.badge-warning { background: rgba(245, 158, 11, 0.12); color: var(--color-warning); }
.badge-danger  { background: rgba(239, 68, 68, 0.12); color: var(--color-danger); }
.badge-info    { background: rgba(59, 130, 246, 0.12); color: var(--color-info); }
.badge-primary { background: rgba(107, 70, 193, 0.12); color: var(--color-primary); }
.badge-gray    { background: rgba(107, 114, 128, 0.12); color: var(--color-text-secondary); }

/* ---------- 表格 ---------- */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
}

.table {
    width: 100%;
    background: var(--color-surface);
}

.table thead th {
    background: var(--color-bg-alt);
    padding: var(--space-3) var(--space-4);
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

.table tbody td {
    padding: var(--space-3) var(--space-4);
    font-size: 14px;
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-text);
}

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

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

.table .col-actions {
    white-space: nowrap;
    text-align: right;
}

/* ---------- Tab ---------- */
.tabs {
    display: flex;
    gap: var(--space-1);
    border-bottom: 2px solid var(--color-border-light);
    margin-bottom: var(--space-5);
    overflow-x: auto;
}

.tab-item {
    padding: var(--space-3) var(--space-4);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.tab-item.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    font-weight: 600;
}

/* ---------- 统计卡 ---------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.stat-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.stat-card .stat-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: var(--space-1);
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--color-text-secondary);
}

.stat-card .stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
}

/* ---------- 空状态 ---------- */
.empty-state {
    text-align: center;
    padding: var(--space-8) var(--space-4);
    color: var(--color-text-tertiary);
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: var(--space-3);
    opacity: 0.5;
}

.empty-state .empty-text {
    font-size: 14px;
}

/* ---------- Toast ---------- */
.toast-container {
    position: fixed;
    top: var(--space-6);
    right: var(--space-6);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    pointer-events: none;
}

.toast {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--space-3) var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-width: 280px;
    max-width: 400px;
    border-left: 4px solid var(--color-primary);
    animation: toast-slide-in 0.3s ease;
    pointer-events: auto;
}

.toast.success { border-left-color: var(--color-success); }
.toast.error   { border-left-color: var(--color-danger); }
.toast.warning { border-left-color: var(--color-warning); }
.toast.info    { border-left-color: var(--color-info); }

.toast-message {
    flex: 1;
    font-size: 14px;
    color: var(--color-text);
}

@keyframes toast-slide-in {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ---------- 模态框 ---------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(31, 41, 55, 0.5);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--space-4);
    animation: fade-in 0.2s ease;
}

.modal {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: modal-pop 0.25s ease;
}

.modal-header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.modal-close {
    font-size: 22px;
    color: var(--color-text-tertiary);
    line-height: 1;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.modal-close:hover {
    background: var(--color-surface-hover);
    color: var(--color-text);
}

.modal-body {
    padding: var(--space-5);
    overflow-y: auto;
}

.modal-footer {
    padding: var(--space-3) var(--space-5);
    border-top: 1px solid var(--color-border-light);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-2);
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes modal-pop {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* ---------- 分页 ---------- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) 0;
    gap: var(--space-3);
}

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

.pagination-controls {
    display: flex;
    gap: var(--space-1);
}

.pagination-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--color-primary-light);
    color: var(--color-primary);
}

.pagination-btn.active {
    background: var(--gradient-primary);
    color: #FFFFFF;
    border-color: transparent;
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ---------- 搜索栏 ---------- */
.toolbar {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.toolbar .toolbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex: 1;
}

.toolbar .toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* ---------- Loading ---------- */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.loading-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-6);
    color: var(--color-text-tertiary);
    font-size: 14px;
}

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