body {
    font-family: 'Inter', sans-serif;
    background-color: #121212;
    color: #e0e0e0;
}
.form-input, .form-select {
    background-color: #2a2a2a;
    border-color: #444;
    color: #e0e0e0;
}
.btn-primary {
    background-color: #e60000;
    color: white;
    transition: background-color 0.3s;
}
.btn-primary:hover { background-color: #c00; }
.modal-backdrop { background-color: rgba(0,0,0,0.8); }
.card {
    background-color: #1e1e1e;
    border: 1px solid #2f2f2f;
    border-radius: 0.75rem;
    padding: 1.5rem;
}
.stat-card-sm {
    background-color: #2a2a2a;
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    text-align: center;
}
.activity-grid {
    display: grid;
    grid-template-columns: repeat(26, 1fr); /* Approx 6 months */
    grid-template-rows: repeat(7, 1fr);
    gap: 3px;
    grid-auto-flow: column;
}
.activity-cell {
    width: 12px;
    height: 12px;
    background-color: #2a2a2a;
    border-radius: 2px;
}
.result-table tr:nth-child(even) { background-color: #2a2a2a; }
.result-table tr.highlight { background-color: #e60000; font-weight: bold; }
.text-positive { color: #4ade80; } /* Tailwind green-400 */
.text-negative { color: #f87171; } /* Tailwind red-400 */

.chart-tooltip {
    background: rgba(0, 0, 0, 0.8);
    border-radius: 0.5rem;
    padding: 0.5rem 1rem;
    color: #e0e0e0;
    font-size: 0.875rem;
    pointer-events: none;
    transition: opacity 0.2s;
}
.finish-bar-container {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 80px;
}
.finish-bar {
    background-color: #4a4a4a;
    width: 100%;
    border-radius: 2px;
    transition: background-color 0.3s;
}
.finish-bar:hover {
    background-color: #e60000;
}