/* ==========================================
   Prime Tech India - Solar Load Calculator
   Integrated with Main Site Styles
   ========================================== */

:root {
    --calc-primary: var(--primary);
    --calc-bg: var(--bg-card);
    --calc-bg-secondary: var(--bg-secondary);
    --calc-text: var(--text-primary);
    --calc-text-light: var(--text-secondary);
    --calc-border: var(--glass-border);
    --calc-shadow: var(--shadow-lg);
    --calc-radius: var(--radius-lg);
}

/* Section Header */
.calculator-section {
    padding: var(--spacing-xl) 0;
    background: radial-gradient(circle at top right, rgba(8, 184, 90, 0.05), transparent),
        radial-gradient(circle at bottom left, rgba(8, 184, 90, 0.03), transparent);
}

.calculator-section .container {
    max-width: 1400px;
}

.calc-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--calc-border);
    border-radius: var(--calc-radius);
    box-shadow: var(--calc-shadow);
    color: var(--calc-text);
}

/* ─── Top Controls ────────────────────────────────────────── */
.calc-top-controls {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--calc-border);
}

.calc-mode-switcher,
.panel-tech-selector {
    display: flex;
    background: var(--calc-bg-secondary);
    padding: 0.4rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--calc-border);
}

.tech-options {
    display: flex;
    gap: 0.5rem;
    width: 100%;
}

.mode-btn,
.tech-btn {
    flex: 1;
    padding: 0.8rem 1.5rem;
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--calc-text-light);
    cursor: pointer;
    transition: var(--transition-normal);
    white-space: nowrap;
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.2;
}

.mode-btn:hover,
.tech-btn:hover {
    color: var(--calc-primary);
}

.mode-btn.active,
.tech-btn.active {
    background: var(--calc-primary);
    color: var(--bg-dark);
    box-shadow: var(--shadow-sm);
}

.tech-sub {
    font-size: 0.7rem;
    font-weight: 500;
    opacity: 0.8;
    margin-top: 2px;
}

/* ─── Calculator Main Layout ──────────────────────────────── */
.calc-main {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 2.5rem;
}

.calc-view {
    display: none;
    animation: fadeIn var(--transition-normal);
}

.calc-view.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ─── Appliance Grid ────────────────────────────────────────── */
.appliance-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.appliance-row {
    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--calc-border);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

@media (max-width: 1400px) {
    .appliance-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.appliance-row:hover {
    transform: translateY(-2px);
    border-color: var(--calc-primary);
    box-shadow: var(--shadow-md);
}

.appliance-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.appliance-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-dark);
}

.appliance-icon i {
    width: 20px;
    height: 20px;
}

.appliance-name {
    font-weight: 700;
    font-size: 0.95rem;
    display: flex;
    flex-direction: column;
}

.watt-input-wrap {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--calc-text-light);
    margin-top: 0.25rem;
}

.watt-edit-input {
    width: 80px;
    border: 1px solid var(--calc-border);
    background: var(--bg-secondary);
    border-radius: 4px;
    padding: 0.2rem 0.4rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--calc-primary);
    text-align: center;
    outline: none;
    font-family: var(--font-primary);
}

.watt-edit-input:focus {
    border-color: var(--calc-primary);
}

/* ─── Qty Controls ────────────────────────────────────────── */
.qty-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: 6px;
    border: 1px solid var(--calc-border);
}

.qty-btn {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: var(--bg-card);
    color: var(--calc-text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition-fast);
    user-select: none;
    border: 1px solid var(--calc-border);
}

.qty-btn:hover {
    background: var(--calc-primary);
    color: var(--bg-dark);
    border-color: var(--calc-primary);
}

.qty-val {
    font-weight: 700;
    font-size: 1rem;
    width: 30px;
    text-align: center;
}

/* ─── Sliders ────────────────────────────────────────── */
.slider-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.slider-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--calc-text-light);
}

.slider-label span b {
    color: var(--calc-primary);
    font-size: 0.9rem;
}

.calc-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    outline: none;
    border: 1px solid var(--calc-border);
}

.calc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--bg-card);
    border: 2px solid var(--calc-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

.calc-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    background: var(--calc-primary);
}

/* ─── Simple View ────────────────────────────────────────── */
.simple-input-card {
    background: var(--bg-card);
    border: 1px solid var(--calc-border);
    border-radius: var(--radius-md);
    padding: 2.5rem;
    max-width: 600px;
    margin: 0 auto;
}

.simple-header {
    margin-bottom: 2rem;
    text-align: center;
}

.simple-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.simple-header p {
    color: var(--calc-text-light);
}

.simple-field label {
    display: block;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--calc-text);
}

.input-with-symbol {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border: 2px solid var(--calc-border);
    border-radius: var(--radius-md);
    padding: 0 1.5rem;
    transition: var(--transition-normal);
}

.input-with-symbol:focus-within {
    border-color: var(--calc-primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.input-with-symbol input {
    background: transparent;
    border: none;
    padding: 1.25rem 0.5rem;
    width: 100%;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--calc-text);
    outline: none;
    font-family: var(--font-primary);
}

.symbol-right {
    font-weight: 600;
    color: var(--calc-text-light);
}

.field-hint {
    display: block;
    font-size: 0.85rem;
    color: var(--calc-text-light);
    margin-top: 0.75rem;
    text-align: center;
}

/* ─── Result Panel ────────────────────────────────────────── */
.calc-result-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: sticky;
    top: 120px;
    height: fit-content;
}

.live-stats {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    border: 1px solid var(--calc-border);
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--calc-border);
}

.stat-row:last-child {
    border: none;
    padding-bottom: 0;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--calc-text-light);
    font-weight: 500;
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--calc-primary);
}

.highlight-box {
    background: var(--gradient-primary);
    color: var(--bg-dark);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-glow);
    position: relative;
    overflow: hidden;
}

.highlight-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.75rem;
    font-weight: 700;
    opacity: 0.9;
}

.highlight-value {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    display: block;
    line-height: 1;
}

.saving-line {
    font-size: 0.85rem;
    background: rgba(0, 0, 0, 0.15);
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-full);
    display: inline-block;
    font-weight: 700;
}

.calc-cta {
    width: 100%;
}

.trust-line {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-size: 0.75rem;
    color: var(--calc-text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
    text-align: center;
}

/* ─── Modal ────────────────────────────────────────── */
.calc-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.calc-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-dark);
    padding: 3rem;
    border-radius: var(--radius-lg);
    width: 95%;
    max-width: 500px;
    position: relative;
    transform: scale(0.9) translateY(20px);
    transition: var(--transition-normal);
    border: 1px solid var(--calc-border);
}

.calc-modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    cursor: pointer;
    color: var(--calc-text-light);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-secondary);
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: #ff4d4d;
    color: white;
}

.modal-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.modal-header h3 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.calc-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.form-label {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--calc-text);
}

.calc-input {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--calc-border);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--calc-text);
    outline: none;
    transition: var(--transition-normal);
}

.calc-input:focus {
    border-color: var(--calc-primary);
    background: var(--bg-card);
}

/* ─── Responsive ────────────────────────────────────────── */
@media (max-width: 1200px) {
    .calc-main {
        grid-template-columns: 1fr;
    }

    .calc-result-panel {
        position: static;
        order: 1;
    }
}

@media (max-width: 992px) {
    .appliance-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .appliance-row {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .qty-controls {
        max-width: 200px;
    }

    .calc-wrapper {
        padding: 1.5rem;
    }

    .simple-input-card {
        padding: 1.5rem;
    }

    .highlight-value {
        font-size: 2rem;
    }
}

/* ─── Dark Mode Specifics ────────────────────────────────── */
[data-theme="dark"] .calc-wrapper {
    background: rgba(10, 10, 10, 0.8);
}

[data-theme="dark"] .mode-btn.active,
[data-theme="dark"] .tech-btn.active {
    color: #000;
}

[data-theme="dark"] .appliance-icon {
    color: #000;
}

[data-theme="dark"] .highlight-box {
    color: #000;
}