/**
 * Components Styles
 * 公共UI组件样式
 */

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition);
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: var(--color-bg-secondary);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

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

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

.btn-danger:hover {
    background: #dc2626;
}

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

.btn-success:hover {
    background: #059669;
}

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-md);
}

.btn-icon.sm {
    width: 28px;
    height: 28px;
}

.btn-icon svg {
    width: 18px;
    height: 18px;
}

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

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--color-border-light);
    background: var(--color-bg-secondary);
}

/* ========== 输入框 ========== */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

.input-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.input {
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: all var(--transition);
    background: var(--color-bg-card);
}

.input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.input::placeholder {
    color: var(--color-text-light);
}

.input.error {
    border-color: var(--color-danger);
}

.input.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.input-hint {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.input-error {
    font-size: 0.75rem;
    color: var(--color-danger);
}

/* ========== 徽章 ========== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-primary {
    background: var(--color-primary-bg);
    color: var(--color-primary);
}

.badge-success {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-danger {
    background: var(--color-danger-bg);
    color: var(--color-danger);
}

.badge-info {
    background: var(--color-info-bg);
    color: var(--color-info);
}

/* ========== 表格 ========== */
.table-wrapper {
    overflow-x: auto;
}

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

.table th,
.table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
}

.table th {
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    background: var(--color-bg-secondary);
}

.table td {
    font-size: 0.875rem;
    color: var(--color-text);
}

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

/* ========== 模态框 ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

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

.modal {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition);
}

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

.modal-body {
    padding: 24px;
    overflow-y: auto;
    max-height: 60vh;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--color-border-light);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ========== Toast提示 ========== */
.toast-container {
    position: fixed;
    top: 80px;
    right: 24px;
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 20px;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--color-primary);
    min-width: 320px;
    max-width: 420px;
    pointer-events: auto;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.success {
    border-left-color: var(--color-success);
}

.toast.warning {
    border-left-color: var(--color-warning);
}

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

.toast-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.toast.success .toast-icon { color: var(--color-success); }
.toast.warning .toast-icon { color: var(--color-warning); }
.toast.error .toast-icon { color: var(--color-danger); }

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 4px;
}

.toast-message {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.4;
}

.toast-close {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    transition: all var(--transition);
    flex-shrink: 0;
}

.toast-close:hover {
    background: var(--color-bg-secondary);
    color: var(--color-text);
}

/* ========== 空状态 ========== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 24px;
    color: var(--color-text-light);
}

.empty-state-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.empty-state-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
    max-width: 400px;
}

/* ========== 加载状态 ========== */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-secondary) 25%,
        var(--color-border-light) 50%,
        var(--color-bg-secondary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ========== 标签页 ========== */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    gap: 4px;
}

.tab-item {
    padding: 12px 20px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    margin-bottom: -1px;
}

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

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

.tab-content {
    padding: 20px 0;
}

/* ========== 进度条 ========== */
.progress {
    height: 8px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar.success { background: linear-gradient(90deg, var(--color-success) 0%, #34d399 100%); }
.progress-bar.warning { background: linear-gradient(90deg, var(--color-warning) 0%, #fbbf24 100%); }
.progress-bar.danger { background: linear-gradient(90deg, var(--color-danger) 0%, #f87171 100%); }

/* ========== 工具类 ========== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }
.text-secondary { color: var(--color-text-secondary); }
.text-light { color: var(--color-text-light); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }

.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.p-4 { padding: 16px; }

.hidden { display: none; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }