:root {
    --bg: #0a0e17;
    --bg-card: #111827;
    --fg: #e5e7eb;
    --fg-muted: #6b7280;
    --accent: #3b82f6;
    --green: #10b981;
    --red: #ef4444;
    --border: #1f2937;
    --sidebar-w: 220px;
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--fg);
    font-size: 14px;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-w);
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    padding: 24px 16px;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar .brand h2 {
    color: var(--accent);
    font-size: 20px;
    font-weight: 700;
}

.sidebar .subtitle {
    color: var(--fg-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sidebar ul {
    list-style: none;
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar a {
    color: var(--fg-muted);
    text-decoration: none;
    display: block;
    padding: 10px 12px;
    border-radius: 6px;
    transition: all 0.15s;
}

.sidebar a:hover {
    color: var(--fg);
    background: rgba(59, 130, 246, 0.1);
}

/* Main content */
.content {
    margin-left: var(--sidebar-w);
    flex: 1;
    padding: 32px;
    max-width: 1200px;
}

h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
}

h2 {
    font-size: 16px;
    font-weight: 600;
    margin: 32px 0 12px;
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-card .label {
    font-size: 11px;
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card .value {
    font-size: 20px;
    font-weight: 600;
}

.stat-card .value.big {
    font-size: 28px;
}

.stat-card.active {
    border-color: var(--green);
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.15);
}

.stat-card.positive .value { color: var(--green); }
.stat-card.negative .value { color: var(--red); }

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

thead th {
    text-align: left;
    padding: 8px 12px;
    color: var(--fg-muted);
    font-weight: 500;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

tbody td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

tbody tr:hover {
    background: rgba(59, 130, 246, 0.05);
}

tr.positive td { color: var(--green); }
tr.negative td { color: var(--red); }
tr.positive td:first-child,
tr.negative td:first-child { color: var(--fg); }

td.buy { color: var(--green); font-weight: 600; }
td.sell { color: var(--red); font-weight: 600; }

.muted { color: var(--fg-muted); }

.journal-stats {
    display: flex;
    gap: 24px;
    margin-bottom: 16px;
    color: var(--fg-muted);
    font-size: 13px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .content { margin-left: 0; padding: 16px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    table { font-size: 12px; }
    td, th { padding: 6px 8px; }
}