:root {
    --primary: #8B5CF6;
    --primary-hover: #7C3AED;
    --primary-dim: rgba(139, 92, 246, 0.15);
    --bg: #0F172A;
    --bg-elevated: #1E293B;
    --bg-card: rgba(30, 41, 59, 0.7);
    --surface: rgba(255, 255, 255, 0.05);
    --border: rgba(139, 92, 246, 0.2);
    --border-strong: rgba(139, 92, 246, 0.4);
    --text: #F8FAFC;
    --text-dim: #CBD5E1;
    --text-muted: #64748B;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;
    --radius: 12px;
    --radius-sm: 6px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --font: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition: 200ms ease;
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

.app {
    display: grid;
    grid-template-columns: 280px 1fr;
    height: 100%;
}

.glass {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
}

/* Sidebar */
.sidebar {
    padding: 20px;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 24px;
    background: var(--bg-elevated);
    z-index: 10;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    font-size: 1.5rem;
}

.brand h1 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
}

.endpoint-card {
    padding: 16px;
    border-radius: var(--radius);
}

.endpoint-card h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.input-group {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.input-group input {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, 0.2);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    outline: none;
}

.hint {
    font-size: 0.7rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.filters h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.8rem;
    outline: none;
    margin-bottom: 12px;
}

.input:focus {
    border-color: var(--primary);
}

.filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-dim);
    cursor: pointer;
}

.filter-group input[type="checkbox"] {
    accent-color: var(--primary);
    width: 14px;
    height: 14px;
}

.actions {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

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

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

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

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-strong);
}

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

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

.btn-icon {
    padding: 8px;
}

.btn-sm {
    padding: 4px 10px;
    font-size: 0.75rem;
}

/* Main Layout */
.main-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    height: 100%;
    overflow: hidden;
}

.pane-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 23, 42, 0.8);
    z-index: 5;
}

.pane-header h2 {
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.badge {
    background: var(--primary-dim);
    color: var(--primary);
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-family: var(--font-mono);
}

/* Timeline Pane */
.timeline-pane {
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    background: var(--bg);
}

.timeline-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.req-item {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: var(--surface);
    transition: all var(--transition);
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 10px;
    align-items: center;
}

.req-item:hover {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
}

.req-item.active {
    border-color: var(--primary);
    background: var(--primary-dim);
    box-shadow: 0 0 0 1px var(--primary);
}

.method-badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 6px;
    border-radius: 4px;
    border: 1px solid;
}

.method-GET {
    color: var(--success);
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
}

.method-POST {
    color: var(--info);
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
}

.method-PUT {
    color: var(--warning);
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
}

.method-DELETE {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
}

.method-default {
    color: var(--text-dim);
    background: var(--surface);
    border-color: var(--border);
}

.req-path {
    font-size: 0.8rem;
    font-family: var(--font-mono);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.req-time {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-align: right;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-align: center;
    padding: 20px;
}

.spinner {
    width: 30px;
    height: 30px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

.mt-2 {
    margin-top: 16px;
}

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

/* Inspector Pane */
.inspector-pane {
    display: flex;
    flex-direction: column;
    background: var(--bg);
}

.inspector-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.inspector-actions {
    display: flex;
    gap: 8px;
}

.section-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 8px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
}

.meta-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 16px;
    font-size: 0.8rem;
}

.meta-label {
    color: var(--text-muted);
}

.meta-value {
    font-family: var(--font-mono);
    word-break: break-all;
}

.code-block {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.5;
    margin: 0;
}

.code-block code {
    background: none;
    padding: 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

th,
td {
    text-align: left;
    padding: 8px;
    border-bottom: 1px solid var(--border);
    word-break: break-word;
}

th {
    color: var(--text-muted);
    font-weight: 500;
    width: 30%;
}

td {
    font-family: var(--font-mono);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-strong);
}

@media(max-width: 900px) {
    .app {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }

    .sidebar {
        flex-direction: row;
        flex-wrap: wrap;
        padding: 10px 16px;
        gap: 16px;
        align-items: center;
        border-right: none;
        border-bottom: 1px solid var(--border);
        overflow-x: auto;
    }

    .endpoint-card {
        flex: 1;
        min-width: 250px;
        margin: 0;
        padding: 10px;
    }

    .main-layout {
        grid-template-columns: 250px 1fr;
    }
}