/* ============================================
   LAYOUT - Option A: Profesional Limpio
   ============================================ */

/* Toggle banner - clean, subtle */
.toggle-banner {
    padding: 14px 20px;
    border-radius: 10px;
    margin-bottom: 24px;
    border: 1px solid;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.toggle-banner-amber {
    background: var(--primary-light);
    border-color: rgba(37, 99, 235, 0.15);
}

.toggle-banner-blue {
    background: var(--primary-light);
    border-color: rgba(37, 99, 235, 0.15);
}

.toggle-banner-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toggle-banner-icon {
    font-size: 20px;
}

.toggle-banner-title {
    font-weight: 600;
    font-size: 13px;
    color: var(--primary-dark);
}

.toggle-banner-amber .toggle-banner-title,
.toggle-banner-blue .toggle-banner-title {
    color: var(--primary-dark);
}

.toggle-banner-desc {
    margin: 2px 0 0 0;
    font-size: 12px;
    color: var(--primary);
    opacity: 0.7;
}

.toggle-banner-amber .toggle-banner-desc,
.toggle-banner-blue .toggle-banner-desc {
    color: var(--primary);
}

/* Stat cards grid (biblioteca) - clean white cards */
.stat-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 28px;
}

.stat-card {
    padding: 18px;
    border-radius: 10px;
    border: 1px solid var(--gray-200);
    background: white;
    color: var(--gray-800);
}

.stat-card-purple,
.stat-card-pink,
.stat-card-blue,
.stat-card-green {
    background: white;
    color: var(--gray-800);
}

.stat-card-value {
    font-size: 26px;
    font-weight: 700;
    color: var(--gray-900);
    font-variant-numeric: tabular-nums;
}

.stat-card-label {
    font-size: 11px;
    color: var(--gray-400);
    margin-top: 4px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* Section description text */
.section-desc {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 20px;
}

.section-desc-lg {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 28px;
}

/* Floor option cards */
.floor-option {
    user-select: none;
    cursor: pointer;
}

.floor-option-icon {
    font-size: 24px;
    margin-bottom: 10px;
}

/* Calculate button - large variant */
.btn-calculate-lg {
    padding: 12px 28px;
    font-size: 15px;
}

/* Calculation method info box */
.method-info-box {
    background: white;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 24px;
    border: 1px solid var(--gray-200);
    border-left: 3px solid var(--primary);
}

.method-info-box h3 {
    color: var(--gray-800);
    font-size: 14px;
    font-weight: 600;
    margin: 0 0 12px 0;
}

.method-info-content {
    font-size: 14px;
    color: var(--gray-600);
}

/* Revestimientos panel */
.coating-panel {
    background: var(--gray-50);
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
    border: 1px solid var(--gray-200);
}

.coating-panel h3 {
    width: 100%;
    margin: 0 0 15px 0;
    color: var(--gray-800);
    font-size: 14px;
    font-weight: 600;
}

/* Empty state - clean solid border */
.empty-state {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    padding: 60px 30px;
    border-radius: 12px;
    text-align: center;
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state h3 {
    color: var(--gray-600);
    margin: 0 0 12px 0;
    font-weight: 500;
    font-size: 16px;
}

.empty-state p {
    color: var(--gray-500);
    margin: 0;
    font-size: 14px;
}

.empty-state small {
    display: block;
    margin-top: 12px;
    line-height: 1.8;
    color: var(--gray-400);
}

/* Library header */
.library-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

/* Library search/filter bar */
.library-filters {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.library-search-input {
    flex: 1;
    min-width: 250px;
    padding: 8px 14px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
}

.library-search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.library-filter-select {
    padding: 8px 14px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
}

/* Library projects grid */
.library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

/* Library empty state */
.library-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}

.library-empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.library-empty-title {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--gray-600);
}

.library-empty-desc {
    font-size: 14px;
    color: var(--gray-400);
}

/* Center action */
.text-center-action {
    text-align: center;
    margin-top: 28px;
}

.text-hint {
    font-size: 13px;
    color: var(--gray-400);
    margin-top: 8px;
}

/* Section with top margin */
.section-spaced {
    margin-top: 40px;
}

/* Report container */
.report-container {
    background: white;
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--gray-200);
}

.report-header {
    text-align: center;
    border-bottom: 2px solid var(--gray-200);
    padding-bottom: 20px;
    margin-bottom: 30px;
}

.report-header h2 {
    color: var(--gray-900);
    margin: 0;
    font-size: 22px;
    font-weight: 700;
}

.report-header p {
    color: var(--gray-500);
    margin: 5px 0 0 0;
    font-size: 14px;
}

.report-date {
    font-size: 13px;
    color: var(--gray-400);
    margin-top: 8px;
}

.report-summary {
    background: var(--gray-50);
    padding: 20px;
    border-radius: var(--radius);
    margin-bottom: 30px;
    border: 1px solid var(--gray-200);
}

.report-summary h3 {
    color: var(--gray-800);
    margin: 0 0 15px 0;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.report-summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 15px;
}

.report-metric {
    text-align: center;
}

.report-metric-value {
    font-weight: 700;
    color: var(--gray-900);
    font-variant-numeric: tabular-nums;
}

.report-metric-value.xl { font-size: 28px; }
.report-metric-value.lg { font-size: 20px; }
.report-metric-value.md { font-size: 18px; }

.report-metric-label {
    font-size: 12px;
    color: var(--gray-500);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.report-info {
    background: var(--gray-50);
    padding: 20px;
    border-radius: var(--radius);
    margin-top: 30px;
    border: 1px solid var(--gray-200);
}

.report-info h4 {
    color: var(--gray-700);
    margin: 0 0 15px 0;
    font-size: 14px;
    font-weight: 600;
}

.report-info ul {
    margin: 0;
    padding-left: 20px;
    color: var(--gray-600);
    font-size: 14px;
    line-height: 1.8;
}

.report-empty {
    background: var(--gray-50);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--gray-200);
}

.report-empty h3 {
    color: var(--gray-600);
    margin: 0 0 15px 0;
    font-size: 16px;
    font-weight: 600;
}

.report-empty p {
    color: var(--gray-500);
    margin: 0;
    font-size: 14px;
}

/* Envolvente sections */
.envolvente-section {
    margin-bottom: 30px;
}

.envolvente-section h4 {
    color: var(--gray-700);
    margin-bottom: 15px;
    font-size: 15px;
    font-weight: 600;
}

/* Measurements detail */
.measurements-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 15px;
}

.measurements-detail-grid h4 {
    font-size: 14px;
    margin-bottom: 8px;
}