:root {
    --bg: #0f1117;
    --card: #1a1d27;
    --card2: #22252f;
    --border: #2a2d3a;
    --text: #e4e4e7;
    --muted: #9ca3af;
    --accent: #8b5cf6;
    --green: #22c55e;
    --yellow: #eab308;
    --red: #ef4444;
    --blue: #3b82f6;
}

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

body {
    font-family: 'Inter', -apple-system, system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 13px;
    line-height: 1.5;
}

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

.sidebar {
    width: 200px;
    background: #16181f;
    border-right: 1px solid var(--border);
    padding: 16px 12px;
    flex-shrink: 0;
    position: fixed;
    top: 48px;
    bottom: 0;
    overflow-y: auto;
}

.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 48px;
    background: #16181f;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 100;
}

.content {
    flex: 1;
    margin-left: 200px;
    margin-top: 48px;
    padding: 20px;
}

.topbar-brand { color: var(--accent); font-weight: 700; font-size: 16px; }
.topbar-user { color: var(--muted); font-size: 11px; }
.topbar-sync { color: var(--green); font-size: 10px; }
.topbar-right { display: flex; align-items: center; gap: 12px; }

.btn-refresh {
    background: var(--accent);
    color: white;
    border: none;
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 11px;
    cursor: pointer;
}
.btn-refresh:hover { opacity: 0.9; }

.avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--card2); }

.nav-section { color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px; padding: 0 8px; }
.nav-item { color: var(--muted); font-size: 12px; padding: 7px 10px; border-radius: 6px; cursor: pointer; display: block; text-decoration: none; margin-bottom: 3px; }
.nav-item:hover { background: var(--card2); color: var(--text); }
.nav-item.active { color: var(--accent); background: rgba(139,92,246,.1); }

.mep-value { color: var(--text); font-size: 20px; font-weight: 700; }
.mep-change { font-size: 11px; }

.asset-item { display: flex; justify-content: space-between; padding: 4px 8px; border-radius: 4px; cursor: pointer; text-decoration: none; }
.asset-item:hover { background: var(--card2); }
.asset-item-symbol { color: var(--text); font-size: 11px; }
.asset-item-gain { font-size: 11px; }

.card { background: var(--card); border-radius: 8px; padding: 14px; border: 1px solid var(--border); }

.kpi-label { color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: .06em; }
.kpi-value { font-size: 22px; font-weight: 700; margin-top: 4px; font-variant-numeric: tabular-nums; }
.kpi-sub { font-size: 11px; margin-top: 2px; }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.grid-6 { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

table { width: 100%; border-collapse: collapse; }
th { background: var(--card2); color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .05em; padding: 8px 12px; text-align: left; font-weight: 500; }
td { padding: 8px 12px; border-bottom: 1px solid var(--border); font-size: 11px; font-variant-numeric: tabular-nums; }
tr:hover { background: var(--card2); }

.period-selector { display: flex; gap: 6px; }
.period-btn { color: var(--muted); font-size: 10px; padding: 3px 8px; background: var(--card2); border-radius: 4px; cursor: pointer; border: none; text-decoration: none; }
.period-btn.active { color: var(--accent); background: rgba(139,92,246,.15); }

.badge { padding: 2px 8px; border-radius: 4px; font-size: 10px; font-weight: 600; }
.badge-green { background: rgba(34,197,94,.12); color: var(--green); }
.badge-red { background: rgba(239,68,68,.12); color: var(--red); }
.badge-blue { background: rgba(59,130,246,.12); color: var(--blue); }
.badge-muted { background: rgba(156,163,175,.1); color: var(--muted); }

.chart-container { background: var(--card); border-radius: 8px; padding: 16px; border: 1px solid var(--border); }
.chart-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.chart-title { color: var(--text); font-size: 13px; font-weight: 600; }

.positive { color: var(--green); }
.negative { color: var(--red); }
.info { color: var(--blue); }
.accent { color: var(--accent); }

.login-container { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { background: var(--card); padding: 40px; border-radius: 12px; border: 1px solid var(--border); text-align: center; width: 380px; }
.login-title { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.login-subtitle { color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.btn-google { background: white; color: #333; border: none; padding: 10px 20px; border-radius: 8px; font-size: 14px; cursor: pointer; width: 100%; font-weight: 500; }
.btn-google:hover { background: #f0f0f0; }

@media (max-width: 768px) {
    .sidebar { display: none; }
    .content { margin-left: 0; }
    .grid-4 { grid-template-columns: 1fr 1fr; }
    .grid-6 { grid-template-columns: 1fr 1fr 1fr; }
}