/* ========================================
   SOLAR CALCULATOR STYLES - PREMIUM FINANCIAL TOOL
   ======================================== */

:root {
    --calc-bg: #f8f9fa;
    --calc-card-bg: #ffffff;
    --calc-input-bg: #f1f3f5;
    --calc-border: #e9ecef;
    --calc-accent: var(--solar-orange);
    --calc-text-dark: var(--deep-blue);
    --calc-text-light: #6c757d;
    --calc-shadow: var(--shadow-xl);
    --calc-radius: 16px;
    --calc-transition: all 0.3s ease;
}

/* ===== PAGE LAYOUT ===== */
.calculator-page {
    background-color: var(--calc-bg);
    min-height: 100vh;
    padding: 120px 0 80px;
}

.calculator-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.calc-header {
    text-align: center;
    margin-bottom: 60px;
}

.calc-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--fw-bold);
    color: var(--calc-text-dark);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.calc-header h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--calc-accent);
    margin: 8px auto 0;
    border-radius: 2px;
}

.calc-header p {
    font-size: 1.1rem;
    color: var(--calc-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Main Calculator Card */
.calculator-app {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    /* 60% - 40% */
    gap: 0;
    background: var(--calc-card-bg);
    border-radius: var(--calc-radius);
    box-shadow: var(--calc-shadow);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

/* ===== LEFT PANEL (INPUTS) ===== */
.calc-panel-left {
    padding: 48px;
    border-right: 1px solid var(--calc-border);
}

.input-section-title {
    font-size: 1.25rem;
    font-weight: var(--fw-bold);
    color: var(--calc-text-dark);
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.input-section-title i {
    color: var(--calc-accent);
}

/* Bill Slider */
/* Custom Toggle for Property Type */
.property-toggle {
    display: flex;
    background: var(--calc-input-bg);
    border-radius: 12px;
    padding: 6px;
    margin-bottom: 28px;
    border: 1px solid var(--calc-border);
}
.property-toggle label {
    flex: 1;
    text-align: center;
    padding: 12px;
    border-radius: 8px;
    font-weight: var(--fw-bold);
    cursor: pointer;
    transition: var(--calc-transition);
    color: var(--calc-text-light);
    margin: 0;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}
.property-toggle input[type="radio"] {
    display: none;
}
.property-toggle input[type="radio"]:checked + label {
    background: var(--white);
    color: var(--calc-accent);
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.bill-control-group {
    background: var(--white);
    padding: 24px;
    border: 2px solid var(--calc-border);
    border-radius: 12px;
    margin-bottom: 32px;
    transition: var(--calc-transition);
}

.bill-control-group:focus-within {
    border-color: var(--calc-accent);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
}

.bill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.bill-label {
    font-weight: var(--fw-bold);
    color: var(--calc-text-dark);
}

.bill-value-box {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: var(--fw-bold);
    color: var(--calc-accent);
}

.currency-symbol {
    margin-right: 4px;
    font-size: 1rem;
    color: var(--calc-text-light);
}

.bill-input-field {
    border: none;
    background: transparent;
    font-size: inherit;
    font-weight: inherit;
    color: inherit;
    width: 120px;
    outline: none;
    text-align: right;
}

/* Custom Slider */
.range-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: #e9ecef;
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--calc-accent);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s;
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.range-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--calc-text-light);
}

.appliance-estimator {
    margin-bottom: 32px;
    padding: 24px;
    background: linear-gradient(180deg, #fffdfb 0%, #fff8f4 100%);
    border: 1px solid rgba(255, 107, 53, 0.12);
    border-radius: 16px;
}

.appliance-estimator-hidden {
    display: none;
}

.future-consumption-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    padding: 14px 16px;
    background: #fff7f1;
    border: 1px solid rgba(255, 107, 53, 0.14);
    border-radius: 14px;
    cursor: pointer;
    color: var(--calc-text-dark);
    font-weight: var(--fw-bold);
}

.future-consumption-toggle input {
    width: 18px;
    height: 18px;
    accent-color: var(--calc-accent);
    cursor: pointer;
}

.mode-panel-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.mode-panel-head h3 {
    margin: 0 0 6px;
    color: var(--calc-text-dark);
    font-size: 1.1rem;
    font-weight: var(--fw-bold);
}

.mode-panel-head p {
    margin: 0;
    color: var(--calc-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 560px;
}

.btn-add-appliance {
    border: none;
    background: var(--calc-accent);
    color: var(--white);
    padding: 12px 16px;
    border-radius: 12px;
    font-weight: var(--fw-bold);
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: var(--calc-transition);
    white-space: nowrap;
}

.btn-add-appliance:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(255, 107, 53, 0.22);
}

.ev-mode-panel-head {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px dashed rgba(255, 107, 53, 0.16);
}

.appliance-rows {
    display: grid;
    gap: 14px;
}

.ev-rows {
    display: grid;
    gap: 14px;
}

.appliance-row {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 14px;
    padding: 16px;
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.04);
}

.appliance-row-top {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    margin-bottom: 14px;
}

.remove-appliance {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 1px solid rgba(220, 38, 38, 0.14);
    background: #fff5f5;
    color: #dc2626;
    cursor: pointer;
    transition: var(--calc-transition);
}

.remove-appliance:hover {
    background: #fee2e2;
}

.appliance-row-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.appliance-field label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.78rem;
    font-weight: var(--fw-bold);
    color: var(--calc-text-light);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.appliance-input {
    width: 100%;
    min-height: 48px;
    padding: 12px 14px;
    border: 1.5px solid var(--calc-border);
    border-radius: 12px;
    background: var(--white);
    color: var(--calc-text-dark);
    font-size: 0.98rem;
    font-weight: 600;
    transition: var(--calc-transition);
}

.appliance-input:focus {
    outline: none;
    border-color: var(--calc-accent);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
}

.appliance-output {
    background: #f8faff;
    border: 1px dashed rgba(22, 52, 95, 0.14);
    border-radius: 12px;
    padding: 12px 14px;
}

.appliance-output strong {
    display: block;
    color: var(--calc-text-dark);
    font-size: 1rem;
    font-weight: 800;
}

.appliance-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
    margin-top: 18px;
}

.appliance-summary-card {
    background: var(--white);
    border-radius: 14px;
    padding: 16px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}

.appliance-summary-card.highlight {
    background: #fff1e8;
    border-color: rgba(255, 107, 53, 0.22);
}

.summary-label {
    display: block;
    font-size: 0.78rem;
    font-weight: var(--fw-bold);
    color: var(--calc-text-light);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.appliance-summary-card strong {
    color: var(--calc-text-dark);
    font-size: 1.1rem;
    font-weight: 800;
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: var(--fw-semibold);
    color: var(--calc-text-dark);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.8;
}

.custom-select-wrapper {
    position: relative;
    border-radius: 12px;
    background: var(--white);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
    /* Soft shadow for depth */
    transition: var(--calc-transition);
}

.custom-select-wrapper:hover {
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.06);
    transform: translateY(-1px);
}

.custom-select {
    width: 100%;
    padding: 16px 20px;
    padding-right: 48px;
    border: 1.5px solid var(--calc-border);
    border-radius: 12px;
    background-color: transparent;
    /* Wrapper has bg */
    color: var(--calc-text-dark);
    font-size: 1rem;
    font-weight: var(--fw-bold);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    transition: var(--calc-transition);
    position: relative;
    z-index: 2;
}

.custom-select:focus {
    outline: none;
    border-color: var(--calc-accent);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
}

.select-arrow {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--calc-accent);
    pointer-events: none;
    font-size: 0.9rem;
    transition: transform 0.3s ease;
    z-index: 1;
}

.custom-select:focus+.select-arrow {
    transform: translateY(-50%) rotate(180deg);
}

/* Option Styling (Webkit/Chrome only) */
select option {
    padding: 16px;
    background: #fff;
    color: var(--deep-blue);
    font-weight: 500;
}

.helper-txt {
    font-size: 0.8rem;
    color: var(--calc-text-light);
    margin-top: 6px;
    display: block;
}

/* Recalculate Button */
.btn-recalc {
    width: 100%;
    padding: 16px;
    background: var(--calc-accent);
    color: var(--white);
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: var(--fw-bold);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--calc-transition);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.2);
}

.btn-recalc:hover {
    background: var(--solar-orange-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(255, 107, 53, 0.3);
}

/* ===== RIGHT PANEL (RESULTS) ===== */
.calc-panel-right {
    padding: 48px;
    background-color: #f8faff;
    /* Very subtle tint */
    display: flex;
    flex-direction: column;
}

.results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 32px;
}

.calc-recommendation {
    background: linear-gradient(135deg, #fff4eb 0%, #fffaf5 100%);
    border: 1px solid rgba(255, 107, 53, 0.18);
    border-left: 5px solid var(--calc-accent);
    border-radius: 14px;
    padding: 18px 20px;
    margin-bottom: 24px;
    box-shadow: 0 10px 24px rgba(255, 107, 53, 0.08);
}

.calc-recommendation-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: var(--fw-bold);
    color: var(--calc-accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
}

.calc-recommendation p {
    margin: 0;
    color: var(--calc-text-dark);
    font-size: 1rem;
    line-height: 1.7;
    font-weight: 500;
}

.calc-future-note {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed rgba(255, 107, 53, 0.2);
    color: var(--calc-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
    font-weight: 600;
}

.result-card {
    background: var(--white);
    padding: 24px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--calc-transition);
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.result-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.result-card.highlight {
    border: 2px solid var(--calc-accent);
    position: relative;
    background: #fff5f2;
    /* Super light orange tint */
}

.res-icon {
    font-size: 1.5rem;
    color: var(--calc-text-light);
    margin-bottom: 12px;
    opacity: 0.6;
}

.highlight .res-icon {
    color: var(--calc-accent);
    opacity: 1;
}

.res-value {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--calc-text-dark);
    line-height: 1.2;
    margin-bottom: 4px;
    word-break: break-word;
}

.highlight .res-value {
    color: var(--calc-accent);
    font-size: 1.8rem;
}

.res-label {
    font-size: 0.85rem;
    color: var(--calc-text-light);
    font-weight: var(--fw-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Trust Indicators */
.trust-indicators {
    margin-top: auto;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding-top: 24px;
    margin-bottom: 24px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    color: var(--calc-text-light);
    font-size: 0.95rem;
}

.trust-item i {
    color: #28a745;
    /* Success Green */
}

/* Action Buttons */
.action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.btn-action {
    padding: 14px;
    border-radius: 10px;
    font-weight: var(--fw-bold);
    font-size: 0.95rem;
    text-align: center;
    text-decoration: none;
    transition: var(--calc-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
}

.btn-primary-solid {
    background: var(--deep-blue);
    color: var(--white);
    border: none;
}

.btn-primary-solid:hover {
    background: #0f1e2e;
    transform: translateY(-2px);
    color: white;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--calc-border);
    color: var(--calc-text-dark);
}

.btn-outline:hover {
    border-color: var(--calc-text-dark);
    background: rgba(0, 0, 0, 0.02);
    color: var(--calc-text-dark);
}

/* Disclaimer */
.disclaimer-text {
    text-align: center;
    font-size: 0.8rem;
    color: var(--calc-text-light);
    opacity: 0.7;
    margin-top: 24px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .calculator-app {
        grid-template-columns: 1fr;
    }

    .calc-panel-left {
        border-right: none;
        border-bottom: 1px solid var(--calc-border);
        padding: 40px 30px;
    }

    .calc-panel-right {
        padding: 40px 30px;
    }

    .appliance-row-grid,
    .appliance-summary {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .calculator-page {
        padding: 100px 0 60px;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .action-buttons {
        grid-template-columns: 1fr;
        /* Stack buttons */
    }

    .mode-panel-head {
        flex-direction: column;
    }

    .btn-add-appliance {
        width: 100%;
        justify-content: center;
    }

    .appliance-row-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 576px) {
    .calc-header h1 {
        font-size: 2rem;
    }

    .calc-panel-left,
    .calc-panel-right {
        padding: 24px 20px;
    }

    .results-grid {
        grid-template-columns: 1fr;
        /* Stack result cards */
    }

    .appliance-estimator {
        padding: 18px 16px;
    }

    .appliance-row {
        padding: 14px;
    }

    .appliance-row-top,
    .appliance-row-grid,
    .appliance-summary {
        grid-template-columns: 1fr;
    }

    .remove-appliance {
        width: 100%;
    }

    .calc-recommendation {
        padding: 16px;
    }

    .calc-recommendation p {
        font-size: 0.95rem;
    }

    .bill-value-box {
        font-size: 1.25rem;
    }

    .bill-input-field {
        width: 100px;
    }
}