:root {
    --bg-color: #0E1015;
    --surface-color: #16181D;
    --border-color: #2D313A;
    --text-primary: #EDEDED;
    --text-secondary: #8B949E;
    --accent-color: #5E6AD2;
    --accent-hover: #6F7BF7;
    --danger-color: #F85149;
    --success-color: #3FB950;
    --ai-color: #A371F7;
    --se-color: #3FB950;
    --seo-color: #F0883E;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

.container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background-color: var(--surface-color);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.brand {
    padding: 24px;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    border-bottom: 1px solid var(--border-color);
}

.brand-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: 4px;
}

.nav {
    flex: 1;
    padding: 24px 12px;
}

.nav a {
    display: block;
    padding: 10px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 4px;
    transition: all 0.2s;
}

.nav a:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.nav a.active {
    background-color: rgba(94, 106, 210, 0.15);
    color: var(--accent-color);
}

.main-content {
    flex: 1;
    padding: 40px;
    max-width: 1200px;
    overflow-y: auto;
}

h1, h2, h3, h4 {
    margin-top: 0;
    font-weight: 600;
}

.page-header {
    margin-bottom: 40px;
}

.page-header h1 {
    font-size: 2rem;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}

.page-header p {
    color: var(--text-secondary);
    margin: 0;
}

/* Grid & Cards */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-bottom: 40px;
}

.card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
}

.card-header {
    margin-bottom: 20px;
}

.card-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin: 0;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 10px 0 0 0;
    letter-spacing: -0.02em;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.9rem;
}

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

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-ai { background-color: rgba(163, 113, 247, 0.15); color: var(--ai-color); }
.badge-se { background-color: rgba(63, 185, 80, 0.15); color: var(--se-color); }
.badge-seo { background-color: rgba(240, 136, 62, 0.15); color: var(--seo-color); }

/* Timeline specifics */
.filter-bar {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    background: var(--surface-color);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.filter-bar select {
    background: var(--bg-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.9rem;
}

.btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
}

.btn:hover {
    background: var(--accent-hover);
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--surface-color);
    border: 1px dashed var(--border-color);
    border-radius: 12px;
}

.empty-state h3 {
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-secondary);
}

pre, code {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 0.85rem;
}

.path-cell {
    word-break: break-all;
    max-width: 300px;
}