/* =====================================================
   Solar Calculator Plugin — solar-calculator.css
   ===================================================== */

.solar-calc-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    max-width: 680px;
    margin: 2rem auto;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 32px rgba(0,0,0,0.10);
    border: 1px solid #e5e7eb;
}

/* ---- Light Theme ---- */
.solar-calc--light {
    background: #ffffff;
    color: #1a1a2e;
}
.solar-calc--light .solar-calc__header {
    background: linear-gradient(135deg, #f97316 0%, #f59e0b 100%);
    color: #fff;
}
.solar-calc--light .solar-calc__input,
.solar-calc--light .solar-calc__select {
    background: #f9fafb;
    border-color: #d1d5db;
    color: #1a1a2e;
}
.solar-calc--light .solar-calc__input:focus,
.solar-calc--light .solar-calc__select:focus {
    border-color: #f97316;
    box-shadow: 0 0 0 3px rgba(249,115,22,0.15);
}
.solar-calc--light .solar-calc__watt-card input:checked + .solar-calc__watt-inner {
    background: #f97316;
    color: #fff;
    border-color: #f97316;
}
.solar-calc--light .solar-calc__watt-inner {
    border-color: #e5e7eb;
    background: #f9fafb;
}
.solar-calc--light .solar-calc__watt-inner:hover {
    border-color: #f97316;
    background: #fff7ed;
}
.solar-calc--light .solar-calc__btn {
    background: linear-gradient(135deg, #f97316, #f59e0b);
    color: #fff;
}
.solar-calc--light .solar-calc__btn:hover {
    background: linear-gradient(135deg, #ea6c0a, #e08e00);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(249,115,22,0.35);
}
.solar-calc--light .solar-calc__results {
    background: #fff7ed;
    border-top: 3px solid #f97316;
}
.solar-calc--light .solar-calc__metric--primary .solar-calc__metric-value {
    color: #f97316;
}
.solar-calc--light .solar-calc__cost-block {
    background: #fff;
    border: 1px solid #e5e7eb;
}
.solar-calc--light .solar-calc__cost-item--net {
    background: #fff7ed;
    border-color: #f97316;
}
.solar-calc--light .solar-calc__formula-box {
    background: #f1f5f9;
    border-left: 4px solid #f97316;
}
.solar-calc--light .solar-calc__preset-btn {
    background: #fff7ed;
    color: #f97316;
    border-color: #fed7aa;
}
.solar-calc--light .solar-calc__preset-btn:hover {
    background: #f97316;
    color: #fff;
    border-color: #f97316;
}
.solar-calc--light .solar-calc__reset-btn {
    color: #f97316;
    border-color: #f97316;
}
.solar-calc--light .solar-calc__reset-btn:hover {
    background: #f97316;
    color: #fff;
}
.solar-calc--light .solar-calc__cost-item--credit .solar-calc__cost-value {
    color: #16a34a;
}

/* ---- Dark Theme ---- */
.solar-calc--dark {
    background: #0f172a;
    color: #f1f5f9;
}
.solar-calc--dark .solar-calc__header {
    background: linear-gradient(135deg, #1e3a5f 0%, #0f2942 100%);
    color: #fff;
}
.solar-calc--dark .solar-calc__body {
    padding: 2rem;
}
.solar-calc--dark .solar-calc__label {
    color: #cbd5e1;
}
.solar-calc--dark .solar-calc__input,
.solar-calc--dark .solar-calc__select {
    background: #1e293b;
    border-color: #334155;
    color: #f1f5f9;
}
.solar-calc--dark .solar-calc__input:focus,
.solar-calc--dark .solar-calc__select:focus {
    border-color: #f59e0b;
    box-shadow: 0 0 0 3px rgba(245,158,11,0.2);
}
.solar-calc--dark .solar-calc__watt-inner {
    border-color: #334155;
    background: #1e293b;
    color: #f1f5f9;
}
.solar-calc--dark .solar-calc__watt-inner:hover {
    border-color: #f59e0b;
}
.solar-calc--dark .solar-calc__watt-card input:checked + .solar-calc__watt-inner {
    background: #f59e0b;
    color: #0f172a;
    border-color: #f59e0b;
}
.solar-calc--dark .solar-calc__btn {
    background: linear-gradient(135deg, #f59e0b, #f97316);
    color: #0f172a;
}
.solar-calc--dark .solar-calc__btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(245,158,11,0.3);
}
.solar-calc--dark .solar-calc__results {
    background: #0f1f35;
    border-top: 3px solid #f59e0b;
}
.solar-calc--dark .solar-calc__metric--primary .solar-calc__metric-value {
    color: #f59e0b;
}
.solar-calc--dark .solar-calc__cost-block {
    background: #1e293b;
    border: 1px solid #334155;
}
.solar-calc--dark .solar-calc__cost-item--net {
    background: #1e3a2e;
    border-color: #16a34a;
}
.solar-calc--dark .solar-calc__formula-box {
    background: #1e293b;
    border-left: 4px solid #f59e0b;
}
.solar-calc--dark .solar-calc__preset-btn {
    background: #1e293b;
    color: #f59e0b;
    border-color: #334155;
}
.solar-calc--dark .solar-calc__preset-btn:hover {
    background: #f59e0b;
    color: #0f172a;
}
.solar-calc--dark .solar-calc__reset-btn {
    color: #f59e0b;
    border-color: #f59e0b;
}
.solar-calc--dark .solar-calc__reset-btn:hover {
    background: #f59e0b;
    color: #0f172a;
}
.solar-calc--dark .solar-calc__disclaimer {
    color: #64748b;
}
.solar-calc--dark .solar-calc__cost-item--credit .solar-calc__cost-value {
    color: #4ade80;
}

/* ---- Shared Structural Styles ---- */
.solar-calc__header {
    text-align: center;
    padding: 2rem 1.5rem 1.75rem;
}
.solar-calc__icon {
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: 0.5rem;
}
.solar-calc__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 0.4rem;
    letter-spacing: -0.02em;
}
.solar-calc__subtitle {
    font-size: 0.9rem;
    opacity: 0.85;
    margin: 0;
}

.solar-calc__body {
    padding: 1.75rem 2rem 2rem;
}

.solar-calc__field {
    margin-bottom: 1.5rem;
}
.solar-calc__label {
    display: block;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.solar-calc__tooltip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #94a3b8;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    cursor: help;
    margin-left: 5px;
    vertical-align: middle;
}
.solar-calc__input,
.solar-calc__select {
    width: 100%;
    padding: 0.7rem 1rem;
    border: 1.5px solid;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    box-sizing: border-box;
}

/* Presets */
.solar-calc__presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.6rem;
}
.solar-calc__preset-label {
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0.6;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.solar-calc__preset-btn {
    font-size: 0.78rem;
    padding: 0.3rem 0.65rem;
    border-radius: 20px;
    border: 1.5px solid;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.18s;
    background: none;
}

/* Wattage Selector */
.solar-calc__watt-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.6rem;
}
.solar-calc__watt-card {
    cursor: pointer;
    position: relative;
}
.solar-calc__watt-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}
.solar-calc__watt-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.7rem 0.4rem;
    border-radius: 10px;
    border: 1.5px solid;
    text-align: center;
    transition: all 0.18s;
    cursor: pointer;
}
.solar-calc__watt-inner strong {
    font-size: 1.05rem;
    font-weight: 700;
    display: block;
}
.solar-calc__watt-inner small {
    font-size: 0.7rem;
    margin-top: 2px;
    opacity: 0.75;
}

/* CTA Button */
.solar-calc__btn {
    width: 100%;
    padding: 0.9rem;
    border: none;
    border-radius: 10px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.01em;
    margin-top: 0.5rem;
}

/* Results Panel */
.solar-calc__results {
    padding: 1.75rem 2rem 2rem;
    animation: sc-fadein 0.35s ease;
}
@keyframes sc-fadein {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}
.solar-calc__results-header {
    text-align: center;
    margin-bottom: 1.25rem;
}
.solar-calc__results-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.3rem;
}
.solar-calc__results-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0;
}

/* Metrics */
.solar-calc__metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}
.solar-calc__metric {
    text-align: center;
    padding: 1rem 0.5rem;
    border-radius: 10px;
    background: rgba(255,255,255,0.5);
    border: 1px solid rgba(0,0,0,0.06);
}
.solar-calc--dark .solar-calc__metric {
    background: rgba(255,255,255,0.04);
    border-color: rgba(255,255,255,0.07);
}
.solar-calc__metric-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.3rem;
}
.solar-calc__metric-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.6;
}

/* Cost Block */
.solar-calc__cost-block {
    border-radius: 10px;
    padding: 1.1rem 1.25rem;
    margin-bottom: 1rem;
}
.solar-calc__cost-title {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 0 0 0.75rem;
    opacity: 0.8;
}
.solar-calc__cost-grid {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}
.solar-calc__cost-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.45rem 0.6rem;
    border-radius: 6px;
    font-size: 0.9rem;
    border: 1px solid transparent;
}
.solar-calc__cost-item--net {
    font-weight: 700;
    border: 1.5px solid;
    border-radius: 7px;
    font-size: 1rem;
    margin-top: 0.25rem;
}
.solar-calc__cost-value {
    font-weight: 700;
    font-size: 0.95rem;
    white-space: nowrap;
}
.solar-calc__cost-item--net .solar-calc__cost-value {
    font-size: 1.05rem;
}
.solar-calc__payback {
    margin: 0.6rem 0 0;
    font-size: 0.82rem;
    opacity: 0.75;
    font-style: italic;
}

/* Formula Box */
.solar-calc__formula-box {
    border-radius: 8px;
    padding: 0.9rem 1rem;
    margin-bottom: 1rem;
}
.solar-calc__formula-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.6;
    margin: 0 0 0.3rem;
}
.solar-calc__formula-code {
    font-family: "SFMono-Regular", Consolas, monospace;
    font-size: 0.8rem;
    line-height: 1.5;
    display: block;
    word-break: break-word;
}

/* Reset Button */
.solar-calc__reset-btn {
    display: inline-block;
    background: none;
    border: 1.5px solid;
    border-radius: 8px;
    padding: 0.5rem 1.2rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.18s;
}

/* Disclaimer */
.solar-calc__disclaimer {
    text-align: center;
    font-size: 0.72rem;
    padding: 0.9rem 1.5rem;
    opacity: 0.55;
    margin: 0;
    border-top: 1px solid rgba(0,0,0,0.06);
}
.solar-calc--dark .solar-calc__disclaimer {
    border-top-color: rgba(255,255,255,0.06);
}

/* Error State */
.solar-calc__error {
    color: #dc2626;
    font-size: 0.82rem;
    font-weight: 600;
    margin-top: 0.4rem;
    display: none;
}
.solar-calc__input.sc-error,
.solar-calc__select.sc-error {
    border-color: #dc2626 !important;
}

/* Responsive */
@media (max-width: 520px) {
    .solar-calc__body,
    .solar-calc__results {
        padding: 1.25rem 1.1rem;
    }
    .solar-calc__watt-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .solar-calc__metrics {
        grid-template-columns: repeat(3, 1fr);
    }
    .solar-calc__metric-value {
        font-size: 1.3rem;
    }
}