/* ============================================
   Calculateur boiler thermodynamique
   Styles aux couleurs KD Energie
   ============================================ */

/* Hero spécifique calculateur */
.calc-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.calc-hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

.calc-hero p {
    font-size: 1.125rem;
    max-width: 760px;
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.92);
}

/* Section principale */
.calc-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
}

.calc-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

/* Panneaux */
.calc-panel {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.calc-panel h2 {
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

.calc-field {
    margin-bottom: var(--spacing-lg);
}

.calc-field > label,
.calc-field .field-label {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.calc-hint {
    display: block;
    font-size: 0.82rem;
    color: var(--text-light);
    margin-top: 0.35rem;
    line-height: 1.4;
}

/* Cartes de sélection (système actuel) */
.system-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.system-card {
    border: 2px solid var(--border-color);
    border-radius: 0.75rem;
    padding: var(--spacing-md) var(--spacing-xs);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--bg-white);
    user-select: none;
}

.system-card:hover {
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.system-card.active {
    border-color: var(--primary-color);
    background: rgba(217, 116, 64, 0.07);
    box-shadow: var(--shadow-sm);
}

.system-card .system-icon {
    width: 44px;
    height: 44px;
    margin: 0 auto var(--spacing-xs);
    color: var(--secondary-color);
    transition: color var(--transition-base);
}

.system-card.active .system-icon {
    color: var(--primary-color);
}

.system-card .system-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.3;
}

/* Stepper occupants */
.occupant-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.stepper-btn {
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    border: 2px solid var(--primary-color);
    background: var(--bg-white);
    color: var(--primary-color);
    border-radius: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    line-height: 1;
}

.stepper-btn:hover:not(:disabled) {
    background: var(--primary-color);
    color: #fff;
}

.stepper-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.occupant-people {
    display: flex;
    gap: 4px;
    flex: 1;
    flex-wrap: wrap;
}

.person-icon {
    width: 26px;
    height: 26px;
    color: var(--border-color);
    transition: color var(--transition-base);
}

.person-icon.on {
    color: var(--primary-color);
}

.occupant-value {
    font-weight: 700;
    color: var(--primary-color);
    min-width: 1.5ch;
    text-align: center;
}

/* Inputs numériques */
.input-group {
    display: flex;
    align-items: stretch;
}

.input-group input[type="number"] {
    flex: 1;
    width: 100%;
    padding: 0.7rem 0.85rem;
    border: 1.5px solid var(--border-color);
    border-right: none;
    border-radius: 0.5rem 0 0 0.5rem;
    font-family: var(--font-main);
    font-size: 1rem;
    color: var(--text-dark);
    background: var(--bg-white);
    transition: border-color var(--transition-fast);
    -moz-appearance: textfield;
}

.input-group input[type="number"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

.input-group .input-unit {
    display: flex;
    align-items: center;
    padding: 0 0.9rem;
    background: var(--bg-light);
    border: 1.5px solid var(--border-color);
    border-radius: 0 0.5rem 0.5rem 0;
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
}

/* Menu déroulant modèle */
.calc-select {
    width: 100%;
    padding: 0.75rem 2.5rem 0.75rem 0.9rem;
    border: 1.5px solid var(--border-color);
    border-radius: 0.5rem;
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-dark);
    background-color: var(--bg-white);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23d97440' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.95rem center;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    cursor: pointer;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.calc-select:hover {
    border-color: var(--primary-light);
}

.calc-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(217, 116, 64, 0.12);
}

.calc-select optgroup {
    font-weight: 700;
    color: var(--text-dark);
}

.calc-select option {
    font-weight: 500;
    color: var(--text-dark);
}

/* Section avancée repliable */
.calc-advanced {
    margin-top: var(--spacing-sm);
    border-top: 1px dashed var(--border-color);
    padding-top: var(--spacing-md);
}

.calc-advanced summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.92rem;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.calc-advanced summary::-webkit-details-marker { display: none; }

.calc-advanced summary::before {
    content: "▸";
    transition: transform var(--transition-fast);
    display: inline-block;
}

.calc-advanced[open] summary::before {
    transform: rotate(90deg);
}

.advanced-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

/* ============================================
   Résultats
   ============================================ */
.results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.result-card {
    background: var(--bg-light);
    border-radius: 0.75rem;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.result-card.highlight {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-color: var(--primary-dark);
    grid-column: 1 / -1;
}

.result-card .result-label {
    font-size: 0.82rem;
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin-bottom: 0.3rem;
}

.result-card.highlight .result-label {
    color: rgba(255, 255, 255, 0.85);
}

.result-card .result-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.1;
}

.result-card.highlight .result-value {
    color: #fff;
    font-size: 2.1rem;
}

.result-card .result-value small {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-light);
}

.result-card.highlight .result-value small {
    color: rgba(255, 255, 255, 0.85);
}

/* Graphique */
.calc-chart-wrap {
    margin-top: var(--spacing-lg);
}

.calc-chart-wrap h3 {
    font-size: 1.05rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.chart-svg {
    width: 100%;
    height: auto;
    display: block;
    background: var(--bg-light);
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
}

.chart-legend {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-sm);
    font-size: 0.82rem;
    color: var(--text-light);
}

.chart-legend span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.legend-swatch {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    display: inline-block;
}

/* CTA & disclaimer */
.calc-cta {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.calc-cta .btn {
    width: 100%;
    justify-content: center;
}

/* Bouton "Télécharger le rapport PDF" : contour orange visible sur fond blanc */
#btnReport {
    background-color: var(--bg-white);
    color: var(--primary-color);
    border-color: var(--primary-color);
    margin-top: 0.75rem;
}

#btnReport:hover {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

#btnReport .icon {
    color: inherit;
}

.calc-disclaimer {
    margin-top: var(--spacing-xl);
    background: rgba(125, 110, 88, 0.07);
    border-left: 4px solid var(--secondary-color);
    padding: var(--spacing-md);
    border-radius: 0 0.5rem 0.5rem 0;
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.6;
}

.calc-disclaimer strong {
    color: var(--text-dark);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 968px) {
    .calc-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .calc-hero h1 { font-size: 1.9rem; }
    .calc-panel { padding: var(--spacing-lg); }
    .result-card .result-value { font-size: 1.35rem; }
    .result-card.highlight .result-value { font-size: 1.8rem; }
}

@media (max-width: 480px) {
    .system-cards { grid-template-columns: 1fr; }
    .results-grid { grid-template-columns: 1fr; }
    .advanced-grid { grid-template-columns: 1fr; }
    .person-icon { width: 22px; height: 22px; }
    .calc-hero h1 { font-size: 1.6rem; }
}

/* ============================================
   Rapport PDF imprimable
   ============================================ */
.report {
    display: none;
}

.report .rp-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 12px;
    margin-bottom: 16px;
}

.report .rp-logo {
    height: 64px;
    width: auto;
}

.report .rp-head-right {
    text-align: right;
}

.report .rp-head-right h1 {
    font-size: 22px;
    color: var(--primary-color);
    margin: 0;
    line-height: 1.2;
}

.report .rp-subtitle {
    font-size: 14px;
    color: var(--text-dark);
    margin: 2px 0 0;
    font-weight: 600;
}

.report .rp-date {
    font-size: 11px;
    color: var(--text-light);
    margin: 4px 0 0;
}

.report .rp-intro {
    font-size: 12px;
    color: var(--text-light);
    line-height: 1.5;
    margin-bottom: 14px;
}

.report .rp-section-title {
    font-size: 14px;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 5px;
    margin: 18px 0 10px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.report .rp-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12.5px;
}

.report .rp-table th {
    text-align: left;
    font-weight: 500;
    color: var(--text-light);
    padding: 6px 8px;
    width: 55%;
    border-bottom: 1px solid var(--border-color);
}

.report .rp-table td {
    text-align: right;
    font-weight: 700;
    color: var(--text-dark);
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-color);
}

.report .rp-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.report .rp-res {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 9px 12px;
}

.report .rp-res-main {
    grid-column: 1 / -1;
    border: 1.5px solid var(--primary-color);
    border-left: 5px solid var(--primary-color);
}

.report .rp-res-label {
    display: block;
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--text-light);
    margin-bottom: 3px;
}

.report .rp-res-val {
    display: block;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-dark);
}

.report .rp-res-main .rp-res-val {
    font-size: 24px;
    color: var(--primary-color);
}

.report .rp-chart-box {
    margin: 16px 0;
}

.report .rp-chart-box h3 {
    font-size: 12.5px;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.report .rp-chart {
    width: 100%;
    height: auto;
    max-height: 230px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.report .rp-method,
.report .rp-hyp {
    font-size: 12px;
    color: var(--text-dark);
    line-height: 1.55;
    padding-left: 18px;
}

.report .rp-method { list-style: decimal; }
.report .rp-hyp { list-style: disc; }
.report .rp-method li,
.report .rp-hyp li { margin-bottom: 5px; }

.report .rp-disclaimer {
    font-size: 10.5px;
    color: var(--text-light);
    line-height: 1.5;
    background: var(--bg-light);
    border-left: 3px solid var(--secondary-color);
    padding: 9px 12px;
    border-radius: 0 5px 5px 0;
    margin: 16px 0;
}

.report .rp-footer {
    border-top: 2px solid var(--primary-color);
    padding-top: 8px;
    margin-top: 18px;
    font-size: 10.5px;
    color: var(--text-light);
    text-align: center;
    line-height: 1.6;
}

.report .rp-footer strong { color: var(--text-dark); }

/* ============================================
   Règles d'impression
   ============================================ */
@media print {
    @page {
        size: A4;
        margin: 1.4cm;
    }

    body > *:not(#report) {
        display: none !important;
    }

    .report {
        display: block !important;
        position: static;
        width: 100%;
        color: #000;
    }

    .report .rp-section-title,
    .report .rp-results,
    .report .rp-res,
    .report .rp-chart-box,
    .report .rp-table,
    .report .rp-method li {
        break-inside: avoid;
        page-break-inside: avoid;
    }

    /* Force l'impression des couleurs/bordures */
    .report,
    .report * {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}