:root {
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --text-primary: #1a1d21;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --accent-color: #3b82f6;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #6366f1;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --accent-color: #60a5fa;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    margin: 0;
    padding: 20px;
    transition: background 0.3s ease;
}

.dashboard-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.theme-toggle {
    cursor: pointer;
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

input {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px;
    border-radius: 6px;
    width: 100%;
}

button {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

th {
    text-align: left;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    padding: 12px;
    border-bottom: 2px solid var(--border-color);
}

td {
    padding: 14px 12px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.badge {
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-1 { background: rgba(16, 185, 129, 0.1); color: var(--success); border: 1px solid var(--success); }
.badge-2 { background: rgba(239, 68, 68, 0.1); color: var(--danger); border: 1px solid var(--danger); }
.badge-3 { background: rgba(245, 158, 11, 0.1); color: var(--warning); border: 1px solid var(--warning); }
.badge-4 { background: rgba(99, 102, 241, 0.1); color: var(--info); border: 1px solid var(--info); }

.oi-up { color: var(--success); font-weight: bold; }
.oi-down { color: var(--danger); font-weight: bold; }

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