:root {
    --color-bg: #f4f6f9;
    --color-surface: #ffffff;
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-primary-light: #eef2ff;
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-border: #e2e8f0;
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;
    --sidebar-width: 240px;
    --header-height: 56px;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 14px;
    line-height: 1.5;
}

/* Login */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    background: var(--color-surface);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
}

.login-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    text-align: center;
}

.login-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
    font-size: 14px;
}

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 4px;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 14px;
    transition: border-color 0.15s;
    background: var(--color-surface);
    color: var(--color-text);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.form-row .form-group {
    flex: 1;
    min-width: 150px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    white-space: nowrap;
}

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

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

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

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

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

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-block {
    width: 100%;
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-primary);
    padding: 0;
    font-size: inherit;
    cursor: pointer;
    text-decoration: underline;
}

/* Alerts */
.alert {
    padding: 10px 14px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 13px;
}

.alert-error {
    background: #fef2f2;
    color: var(--color-error);
    border: 1px solid #fecaca;
}

.alert-info {
    background: #eff6ff;
    color: var(--color-info);
    border: 1px solid #bfdbfe;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform 0.2s;
}

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

.sidebar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
}

.sidebar-subtitle {
    font-size: 12px;
    color: var(--color-text-secondary);
}

.nav-list {
    list-style: none;
    padding: 8px;
    flex: 1;
    overflow-y: auto;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: background 0.15s;
}

.nav-link:hover {
    background: var(--color-bg);
}

.nav-link.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.nav-icon {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--color-border);
}

/* Content area */
.content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.content-header {
    position: sticky;
    top: 0;
    z-index: 50;
    height: var(--header-height);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--color-text);
}

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

.breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb .separator {
    margin: 0 8px;
    color: var(--color-border);
}

.server-badge {
    font-size: 11px;
    background: var(--color-bg);
    padding: 4px 10px;
    border-radius: 12px;
    color: var(--color-text-secondary);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

.page-content {
    padding: 24px;
}

/* Cards */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.card-header h2 {
    font-size: 16px;
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

.card-body.no-padding {
    padding: 0;
}

/* Page Header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header h1 {
    font-size: 22px;
    font-weight: 700;
}

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

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

thead th {
    text-align: left;
    padding: 10px 16px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

tbody td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--color-border);
    font-size: 13px;
}

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

tbody tr:hover {
    background: #f8fafc;
}

.clickable-row {
    cursor: pointer;
}

/* Status badges */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-error { background: #fef2f2; color: #991b1b; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-neutral { background: #f1f5f9; color: #475569; }

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 16px;
}

.pagination button {
    min-width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    color: var(--color-text);
    transition: all 0.15s;
}

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

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

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

.pagination-info {
    font-size: 12px;
    color: var(--color-text-secondary);
    margin: 0 8px;
}

/* Detail page */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.detail-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px;
}

.detail-section h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 13px;
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    color: var(--color-text-secondary);
    font-weight: 500;
}

.detail-value {
    font-weight: 500;
    text-align: right;
    max-width: 60%;
    word-break: break-word;
}

/* Stats row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 16px 20px;
    box-shadow: var(--shadow);
}

.stat-label {
    font-size: 12px;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

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

.stat-value.currency::before {
    content: '';
}

/* Search dropdown */
.search-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    z-index: 60;
    max-height: 240px;
    overflow-y: auto;
    margin-top: 2px;
}

.search-dropdown-item {
    padding: 8px 12px;
    cursor: pointer;
    font-size: 13px;
    border-bottom: 1px solid var(--color-border);
}

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

.search-dropdown-item:hover {
    background: var(--color-primary-light);
}

.search-dropdown-item.disabled {
    cursor: default;
    color: var(--color-text-secondary);
    font-style: italic;
}

.search-dropdown-item.disabled:hover {
    background: none;
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--color-text-secondary);
}

.spinner {
    width: 28px;
    height: 28px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: 12px;
}

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

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

.empty-state p {
    font-size: 15px;
    margin-top: 8px;
}

/* Filter bar */
.filter-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: flex-end;
    margin-bottom: 16px;
}

.filter-bar .form-group {
    margin-bottom: 0;
    min-width: 140px;
}

/* Request Log Panel */
.request-log-fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    z-index: 200;
    transition: transform 0.15s;
}

.request-log-fab:hover {
    transform: scale(1.1);
}

.request-count {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--color-error);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

.request-log-panel {
    position: fixed;
    bottom: 0;
    right: 0;
    width: 520px;
    max-height: 400px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius) var(--radius) 0 0;
    box-shadow: var(--shadow-lg);
    z-index: 300;
    display: flex;
    flex-direction: column;
}

.request-log-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    border-radius: var(--radius) var(--radius) 0 0;
}

.request-log-header h3 {
    font-size: 13px;
    font-weight: 600;
}

.request-log-body {
    overflow-y: auto;
    flex: 1;
    max-height: 340px;
}

.request-log-entry {
    padding: 8px 16px;
    border-bottom: 1px solid var(--color-border);
    font-size: 12px;
    font-family: 'SF Mono', 'Consolas', monospace;
}

.request-log-entry .method {
    font-weight: 700;
    margin-right: 6px;
}

.request-log-entry .method.GET { color: var(--color-info); }
.request-log-entry .method.POST { color: var(--color-warning); }

.request-log-entry .status-code {
    margin-left: 8px;
    font-weight: 600;
}

.request-log-entry .status-code.ok { color: var(--color-success); }
.request-log-entry .status-code.error { color: var(--color-error); }

.request-log-entry .duration {
    color: var(--color-text-secondary);
    margin-left: 8px;
}

.request-log-entry .timestamp {
    color: var(--color-text-secondary);
    display: block;
    margin-top: 2px;
}

/* Tags */
.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    margin: 2px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-toggle {
        display: block;
    }

    .content {
        margin-left: 0;
    }

    .request-log-panel {
        width: 100%;
    }

    .detail-grid {
        grid-template-columns: 1fr;
    }

    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Back link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--color-primary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
}

.back-link:hover {
    text-decoration: underline;
}

/* Boolean indicators */
.bool-yes { color: var(--color-success); font-weight: 600; }
.bool-no { color: var(--color-text-secondary); }

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 16px;
    gap: 0;
}

.tab-btn {
    padding: 10px 20px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.15s;
}

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

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

/* Image grid */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
    padding: 16px;
}

.image-thumb {
    display: block;
    aspect-ratio: 1;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
    position: relative;
    background: var(--color-bg);
    text-decoration: none;
    color: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
}

a.image-thumb:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

.image-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-thumb .image-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.65);
    color: #fff;
    font-size: 10px;
    padding: 4px 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Currency formatting */
.currency {
    font-variant-numeric: tabular-nums;
}

/* Tooltip */
[data-tooltip] {
    position: relative;
}

[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 8px;
    background: #1e293b;
    color: #fff;
    font-size: 11px;
    border-radius: 4px;
    white-space: nowrap;
    z-index: 50;
}