/* ================================================================
   OPTIMIZATION MODAL — GA Network Optimization UI
   Estilos do modal de otimizacao prescritiva
   ================================================================ */

/* Fieldsets */
.opt-fieldset {
    border: 1px solid var(--border-color, #ddd);
    border-radius: var(--radius-lg);
    padding: 12px 14px 10px;
    margin-bottom: 12px;
}

.opt-fieldset legend {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary, #666);
    padding: 0 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Form grid */
.opt-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
}

.opt-form-grid label {
    display: flex;
    flex-direction: column;
    font-size: 12px;
    color: var(--text-secondary, #666);
    gap: 4px;
}

.opt-form-grid input[type="number"] {
    padding: 6px 8px;
    border: 1px solid var(--border-color, #ddd);
    border-radius: var(--radius-md);
    font-size: 13px;
    background: var(--bg-primary, #fff);
    color: var(--text-primary, #333);
    width: 100%;
    box-sizing: border-box;
}

.opt-form-grid input[type="number"]:focus {
    outline: none;
    border-color: var(--accent, #4a90d9);
    box-shadow: 0 0 0 2px rgba(74, 144, 217, 0.15);
}

/* Advanced collapsible */
.opt-advanced {
    margin-bottom: 12px;
    border: 1px solid var(--border-color, #ddd);
    border-radius: var(--radius-lg);
    padding: 0;
}

.opt-advanced summary {
    cursor: pointer;
    padding: 8px 14px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary, #666);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    user-select: none;
}

.opt-advanced[open] summary {
    border-bottom: 1px solid var(--border-color, #ddd);
}

.opt-advanced .opt-form-grid {
    padding: 0 14px 12px;
}

/* Progress spinner */
.opt-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--border-color, #ddd);
    border-top-color: var(--accent, #4a90d9);
    border-radius: 50%;
    animation: opt-spin 0.8s linear infinite;
    vertical-align: middle;
    margin-right: 6px;
}

@keyframes opt-spin {
    to { transform: rotate(360deg); }
}

/* KPI Grid */
.opt-kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin: 12px 0;
}

.opt-kpi {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 6px;
    background: var(--bg-secondary, #f5f5f5);
    border-radius: var(--radius-lg);
    text-align: center;
}

.opt-kpi-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--accent, #4a90d9);
    line-height: 1.2;
}

.opt-kpi-label {
    font-size: 10px;
    color: var(--text-secondary, #666);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-top: 4px;
}

/* Result table */
.opt-result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    margin: 10px 0;
}

.opt-result-table th {
    background: var(--bg-secondary, #f5f5f5);
    padding: 6px 8px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--border-color, #ddd);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--text-secondary, #666);
}

.opt-result-table td {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-color, #eee);
    font-variant-numeric: tabular-nums;
}

.opt-result-table tr:hover td {
    background: var(--bg-hover, #f0f4f8);
}

/* Result summary container */
.opt-result-summary h4 {
    margin: 0 0 4px;
    font-size: 14px;
    color: var(--text-primary, #333);
}

/* Actions row */
.opt-actions-row {
    display: flex;
    justify-content: flex-end;
    padding-top: 10px;
}

/* Responsive: narrow screens */
@media (max-width: 600px) {
    .opt-kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .opt-form-grid {
        grid-template-columns: 1fr;
    }
}