/* =========================================================
   Solar System Size Calculator
   Add this block to /assets/css/engineering.css
   ========================================================= */

.solar-size-calculator {
    margin: 2rem 0 2.5rem;
}

.solar-size-panel,
.solar-size-results {
    background: #fff;
    border: 1px solid #d8e1e6;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 3px 12px rgba(24, 54, 68, 0.06);
}

.solar-size-panel h2,
.solar-size-results h2 {
    margin-top: 0;
}

.solar-size-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    margin-top: 1.25rem;
}

.solar-size-field {
    min-width: 0;
}

.solar-size-field label {
    display: block;
    margin-bottom: 0.45rem;
    font-weight: 600;
}

.solar-size-field input,
.solar-size-field select {
    width: 100%;
    min-height: 46px;
    box-sizing: border-box;
    border: 1px solid #b8c8d0;
    border-radius: 8px;
    background: #fff;
    padding: 0.7rem 0.8rem;
    font: inherit;
    color: inherit;
}

.solar-size-field input:focus,
.solar-size-field select:focus {
    outline: 2px solid rgba(51, 123, 152, 0.22);
    outline-offset: 1px;
    border-color: #337b98;
}

.solar-size-field small {
    display: block;
    margin-top: 0.45rem;
    line-height: 1.45;
    color: #5f6f77;
}

.solar-size-input-unit {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: stretch;
}

.solar-size-input-unit input {
    border-radius: 8px 0 0 8px;
}

.solar-size-input-unit span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 58px;
    padding: 0 0.75rem;
    border: 1px solid #b8c8d0;
    border-left: 0;
    border-radius: 0 8px 8px 0;
    background: #f4f7f8;
    font-size: 0.92rem;
    white-space: nowrap;
}

.solar-size-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.solar-size-error {
    margin-top: 1rem;
    margin-bottom: 0;
    padding: 0.85rem 1rem;
    border: 1px solid #c77b7b;
    border-radius: 8px;
    background: #fff7f7;
    color: #7a2424;
    line-height: 1.5;
}

.solar-size-results {
    margin-top: 1.5rem;
}

.solar-size-result-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1.25rem;
}

.solar-size-result-card {
    min-width: 0;
    padding: 1.1rem;
    border: 1px solid #d8e1e6;
    border-radius: 10px;
    background: #f8fafb;
}

.solar-size-result-primary {
    border-left: 4px solid #337b98;
}

.solar-size-result-label {
    display: block;
    margin-bottom: 0.5rem;
    color: #5f6f77;
    font-size: 0.9rem;
}

.solar-size-result-card strong {
    display: block;
    margin-bottom: 0.25rem;
    font-size: clamp(1.45rem, 3vw, 2rem);
    line-height: 1.15;
    overflow-wrap: anywhere;
}

.solar-size-result-card > span:last-child {
    color: #5f6f77;
    font-size: 0.9rem;
}

.solar-size-breakdown {
    margin-top: 1.75rem;
}

.solar-size-breakdown h3 {
    margin-bottom: 0.8rem;
}

.solar-size-table-wrap {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.solar-size-table-wrap table {
    width: 100%;
    min-width: 650px;
    border-collapse: collapse;
}

.solar-size-table-wrap th,
.solar-size-table-wrap td {
    padding: 0.8rem 0.9rem;
    border-bottom: 1px solid #e0e7ea;
    text-align: left;
    vertical-align: top;
}

.solar-size-table-wrap th {
    width: 35%;
    font-weight: 600;
}

.solar-size-note {
    margin: 1.25rem 0 0;
    padding: 1rem;
    border-left: 3px solid #337b98;
    background: #f7fafb;
    line-height: 1.6;
}

@media (max-width: 900px) {
    .solar-size-result-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 620px) {
    .solar-size-panel,
    .solar-size-results {
        padding: 1.1rem;
    }

    .solar-size-form-grid,
    .solar-size-result-grid {
        grid-template-columns: 1fr;
    }

    .solar-size-actions {
        flex-direction: column;
    }

    .solar-size-actions .primary-button,
    .solar-size-actions .secondary-button {
        width: 100%;
    }

    .solar-size-table-wrap::after {
        content: "← Swipe table to see more →";
        display: block;
        margin-top: 0.65rem;
        text-align: center;
        color: #687980;
        font-size: 0.82rem;
    }
}