/**
 * GNC BluRay Configurator v2.0 - Styles
 * Design minimal e pulito ispirato al layout GNC
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    --gnc-primary: #000000;
    --gnc-primary-hover: #333333;
    --gnc-accent: #3b82f6;
    --gnc-success: #10b981;
    --gnc-success-light: #d1fae5;
    --gnc-warning: #f59e0b;
    --gnc-warning-light: #fef3c7;
    --gnc-text: #1a1a1a;
    --gnc-text-light: #6b7280;
    --gnc-bg: #ffffff;
    --gnc-bg-light: #f9fafb;
    --gnc-border: #e5e7eb;
    --gnc-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    --gnc-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --gnc-radius: 20px;
    --gnc-radius-sm: 12px;
    --gnc-transition: all 0.25s ease;
}

/* ============================================
   Trigger Button
   ============================================ */
.gnc-configurator-trigger {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: var(--gnc-primary);
    color: #ffffff;
    border: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: var(--gnc-transition);
}

.gnc-configurator-trigger:hover {
    background: var(--gnc-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.gnc-configurator-trigger .gnc-btn-icon {
    font-size: 18px;
}

/* ============================================
   Overlay
   ============================================ */
.gnc-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--gnc-transition);
}

.gnc-overlay.gnc-active {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   Popup Container
   ============================================ */
.gnc-popup {
    background: var(--gnc-bg);
    border-radius: var(--gnc-radius);
    box-shadow: var(--gnc-shadow);
    max-width: 720px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.95) translateY(20px);
    transition: var(--gnc-transition);
}

.gnc-overlay.gnc-active .gnc-popup {
    transform: scale(1) translateY(0);
}

.gnc-popup::-webkit-scrollbar {
    width: 6px;
}

.gnc-popup::-webkit-scrollbar-track {
    background: transparent;
}

.gnc-popup::-webkit-scrollbar-thumb {
    background: var(--gnc-border);
    border-radius: 3px;
}

/* Close button */
.gnc-popup-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border: 1px solid var(--gnc-border);
    background: var(--gnc-bg);
    border-radius: 50%;
    font-size: 20px;
    color: var(--gnc-text-light);
    cursor: pointer;
    transition: var(--gnc-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.gnc-popup-close:hover {
    background: var(--gnc-primary);
    border-color: var(--gnc-primary);
    color: #ffffff;
}

/* ============================================
   Popup Header
   ============================================ */
.gnc-popup-header {
    padding: 32px 40px 24px;
    text-align: center;
    border-bottom: 1px solid var(--gnc-border);
}

.gnc-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.gnc-logo-img {
    height: 32px;
    width: auto;
}

.gnc-logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--gnc-text);
}

/* ============================================
   Popup Body
   ============================================ */
.gnc-popup-body {
    padding: 32px 40px 40px;
}

/* ============================================
   Steps
   ============================================ */
.gnc-step {
    margin-bottom: 28px;
    opacity: 0.4;
    transition: var(--gnc-transition);
    pointer-events: none;
}

.gnc-step.gnc-step-active,
.gnc-step.gnc-step-completed {
    opacity: 1;
    pointer-events: auto;
}

.gnc-step-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.gnc-step-number {
    width: 28px;
    height: 28px;
    background: var(--gnc-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13px;
    color: var(--gnc-text-light);
    transition: var(--gnc-transition);
}

.gnc-step.gnc-step-active .gnc-step-number,
.gnc-step.gnc-step-completed .gnc-step-number {
    background: var(--gnc-primary);
    color: #ffffff;
}

.gnc-step-header h3 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--gnc-text);
}

/* ============================================
   Input Fields - Row Layout
   ============================================ */
.gnc-input-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.gnc-input-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.gnc-input-field label {
    font-size: 12px;
    font-weight: 600;
    color: var(--gnc-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.gnc-input-wrapper {
    display: flex;
    align-items: center;
    background: var(--gnc-bg-light);
    border: 2px solid var(--gnc-border);
    border-radius: var(--gnc-radius-sm);
    overflow: hidden;
    transition: var(--gnc-transition);
}

.gnc-input-wrapper:focus-within {
    border-color: var(--gnc-primary);
    background: var(--gnc-bg);
}

.gnc-input-wrapper input {
    flex: 1;
    padding: 14px 16px;
    border: none;
    background: transparent;
    font-size: 16px;
    font-weight: 600;
    color: var(--gnc-text);
    outline: none;
    min-width: 0;
}

.gnc-input-wrapper input::placeholder {
    color: var(--gnc-text-light);
    font-weight: 400;
}

.gnc-input-unit {
    padding: 14px 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--gnc-text-light);
    background: var(--gnc-border);
}

.gnc-input-hint {
    font-size: 11px;
    color: var(--gnc-text-light);
    margin-top: -4px;
}

/* ============================================
   Coral Type Options - Horizontal Cards
   ============================================ */
.gnc-coral-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.gnc-coral-option {
    cursor: pointer;
}

.gnc-coral-option input {
    display: none;
}

.gnc-coral-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--gnc-bg-light);
    border: 2px solid var(--gnc-border);
    border-radius: var(--gnc-radius-sm);
    transition: var(--gnc-transition);
}

.gnc-coral-option input:checked + .gnc-coral-card {
    background: var(--gnc-bg);
    border-color: var(--gnc-primary);
}

.gnc-coral-card:hover {
    border-color: var(--gnc-text-light);
}

.gnc-coral-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.gnc-coral-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.gnc-coral-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--gnc-text);
}

.gnc-coral-desc {
    font-size: 11px;
    color: var(--gnc-text-light);
}

/* ============================================
   Installation Type Options
   ============================================ */
.gnc-install-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.gnc-install-option {
    cursor: pointer;
}

.gnc-install-option input {
    display: none;
}

.gnc-install-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--gnc-bg-light);
    border: 2px solid var(--gnc-border);
    border-radius: var(--gnc-radius-sm);
    transition: var(--gnc-transition);
}

.gnc-install-option input:checked + .gnc-install-card {
    background: var(--gnc-bg);
    border-color: var(--gnc-primary);
}

.gnc-install-card:hover {
    border-color: var(--gnc-text-light);
}

.gnc-install-icon {
    width: 60px;
    height: 40px;
    color: var(--gnc-text-light);
    flex-shrink: 0;
}

.gnc-install-option input:checked + .gnc-install-card .gnc-install-icon {
    color: var(--gnc-primary);
}

.gnc-install-icon svg {
    width: 100%;
    height: 100%;
}

.gnc-install-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.gnc-install-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--gnc-text);
}

.gnc-install-desc {
    font-size: 12px;
    color: var(--gnc-text-light);
}

/* ============================================
   Calculate Button
   ============================================ */
.gnc-calculate-section {
    margin-top: 32px;
    text-align: center;
}

.gnc-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 18px 48px;
    background: var(--gnc-primary);
    color: #ffffff;
    border: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: var(--gnc-transition);
    position: relative;
    overflow: hidden;
    min-width: 240px;
}

.gnc-btn-primary:hover:not(:disabled) {
    background: var(--gnc-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.gnc-btn-primary:disabled {
    background: var(--gnc-border);
    color: var(--gnc-text-light);
    cursor: not-allowed;
}

.gnc-btn-primary.gnc-loading .gnc-btn-content {
    opacity: 0;
}

.gnc-btn-primary.gnc-loading .gnc-btn-loader {
    display: block;
}

.gnc-btn-loader {
    display: none;
    position: absolute;
    width: 22px;
    height: 22px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: gnc-spin 0.7s linear infinite;
}

@keyframes gnc-spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   Results Section
   ============================================ */
.gnc-results {
    margin-top: 40px;
    animation: gnc-fadeIn 0.4s ease;
}

@keyframes gnc-fadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.gnc-results-header {
    text-align: center;
    margin-bottom: 24px;
}

.gnc-results-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--gnc-text);
}

/* Result Cards Grid */
.gnc-result-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.gnc-result-card {
    background: var(--gnc-bg);
    border: 2px solid var(--gnc-border);
    border-radius: var(--gnc-radius-sm);
    padding: 24px;
    position: relative;
    transition: var(--gnc-transition);
}

.gnc-result-card:hover {
    border-color: var(--gnc-text-light);
    box-shadow: var(--gnc-shadow-sm);
}

.gnc-result-card.gnc-result-recommended {
    border-color: var(--gnc-success);
}

.gnc-result-card.gnc-result-alternative {
    border-color: var(--gnc-warning);
}

.gnc-result-badge {
    position: absolute;
    top: -11px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gnc-success);
    color: #ffffff;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.gnc-result-badge.gnc-badge-alt {
    background: var(--gnc-warning);
}

/* Product Info */
.gnc-result-product {
    text-align: center;
    margin-top: 8px;
    margin-bottom: 20px;
}

.gnc-result-product h4 {
    margin: 0 0 4px;
    font-size: 18px;
    font-weight: 700;
    color: var(--gnc-text);
}

.gnc-result-tagline {
    margin: 0;
    font-size: 12px;
    color: var(--gnc-text-light);
}

/* Quantity Display */
.gnc-result-quantity {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
}

.gnc-qty-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--gnc-primary);
    line-height: 1;
}

.gnc-qty-label {
    font-size: 14px;
    color: var(--gnc-text-light);
    font-weight: 500;
}

/* Details List */
.gnc-result-details {
    margin-bottom: 20px;
}

.gnc-result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--gnc-border);
    font-size: 13px;
}

.gnc-result-row:last-child {
    border-bottom: none;
}

.gnc-result-label {
    color: var(--gnc-text-light);
}

.gnc-result-value {
    font-weight: 600;
    color: var(--gnc-text);
}

.gnc-result-value.gnc-rotated {
    color: var(--gnc-accent);
}

/* Total Price */
.gnc-result-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-top: 2px solid var(--gnc-border);
    margin-top: 8px;
}

.gnc-total-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--gnc-text);
}

.gnc-total-value {
    font-size: 24px;
    font-weight: 800;
    color: var(--gnc-success);
}

/* Add to Cart Button */
.gnc-btn-add-cart {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px;
    margin-top: 16px;
    background: var(--gnc-primary);
    color: #ffffff;
    border: none;
    border-radius: var(--gnc-radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--gnc-transition);
}

.gnc-btn-add-cart:hover {
    background: var(--gnc-primary-hover);
}

.gnc-btn-add-cart.gnc-btn-alt {
    background: transparent;
    color: var(--gnc-text);
    border: 2px solid var(--gnc-border);
}

.gnc-btn-add-cart.gnc-btn-alt:hover {
    border-color: var(--gnc-primary);
    background: var(--gnc-bg-light);
}

/* Result Notes */
.gnc-result-note {
    margin-top: 24px;
    padding: 16px 20px;
    background: var(--gnc-bg-light);
    border-radius: var(--gnc-radius-sm);
}

.gnc-result-note p {
    margin: 0;
    font-size: 13px;
    color: var(--gnc-text-light);
    line-height: 1.5;
}

.gnc-result-note strong {
    color: var(--gnc-text);
}

.gnc-note-warning {
    background: var(--gnc-warning-light);
}

/* Card Warning */
.gnc-card-warning {
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 12px;
    margin-bottom: 16px;
    text-align: center;
}

.gnc-card-warning.gnc-warning-error {
    background: #fef2f2;
    border: 1px solid #ef4444;
    color: #991b1b;
}

.gnc-card-warning.gnc-warning-limit {
    background: #fffbeb;
    border: 1px solid #f59e0b;
    color: #92400e;
}

/* Coverage partial indicator */
.gnc-result-row.gnc-coverage-partial .gnc-result-value {
    color: var(--gnc-warning);
}

.gnc-result-row.gnc-coverage-partial .gnc-result-value::after {
    content: ' ⚠️';
    font-size: 11px;
}

/* Needed indicator */
.gnc-needed {
    font-size: 11px;
    color: var(--gnc-warning);
    font-weight: 400;
}

/* Results subtitle */
.gnc-results-subtitle {
    margin: 8px 0 0;
    font-size: 13px;
    color: var(--gnc-text-light);
}

/* Single card layout */
.gnc-result-cards.gnc-single-card {
    display: flex;
    justify-content: center;
}

.gnc-single-card .gnc-result-card {
    max-width: 400px;
    width: 100%;
}

/* Contact box */
.gnc-contact-box {
    margin-top: 24px;
    padding: 20px;
    background: var(--gnc-bg-light);
    border-radius: var(--gnc-radius-sm);
    text-align: center;
}

.gnc-contact-box p {
    margin: 0 0 12px;
    font-size: 14px;
    color: var(--gnc-text-light);
}

.gnc-contact-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--gnc-primary);
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    transition: background 0.2s;
}

.gnc-contact-link:hover {
    background: var(--gnc-primary-hover);
    color: #fff;
}

/* ============================================
   Success Message
   ============================================ */
.gnc-success {
    text-align: center;
    padding: 48px 24px;
    animation: gnc-fadeIn 0.4s ease;
}

.gnc-success-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.gnc-success h3 {
    margin: 0 0 24px;
    font-size: 22px;
    font-weight: 700;
    color: var(--gnc-text);
}

.gnc-success-details {
    margin-bottom: 32px;
    padding: 20px;
    background: var(--gnc-success-light);
    border-radius: var(--gnc-radius-sm);
}

.gnc-success-details p {
    margin: 6px 0;
    font-size: 14px;
    color: var(--gnc-text);
}

.gnc-success-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.gnc-btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    background: var(--gnc-bg-light);
    color: var(--gnc-text);
    border: 2px solid var(--gnc-border);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--gnc-transition);
    text-decoration: none;
}

.gnc-btn-secondary:hover {
    border-color: var(--gnc-primary);
    background: var(--gnc-bg);
}

.gnc-success-actions .gnc-btn-primary {
    text-decoration: none;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 680px) {
    .gnc-popup {
        max-height: 95vh;
        border-radius: var(--gnc-radius-sm);
    }
    
    .gnc-popup-header {
        padding: 24px 24px 20px;
    }
    
    .gnc-popup-body {
        padding: 24px;
    }
    
    .gnc-input-row {
        grid-template-columns: 1fr 1fr;
    }
    
    .gnc-input-row .gnc-input-field:last-child {
        grid-column: 1 / -1;
    }
    
    .gnc-coral-options {
        grid-template-columns: 1fr;
    }
    
    .gnc-install-options {
        grid-template-columns: 1fr;
    }
    
    .gnc-result-cards {
        grid-template-columns: 1fr;
    }
    
    .gnc-btn-primary {
        width: 100%;
    }
    
    .gnc-qty-number {
        font-size: 40px;
    }
    
    .gnc-success-actions {
        flex-direction: column;
    }
    
    .gnc-success-actions .gnc-btn-primary,
    .gnc-success-actions .gnc-btn-secondary {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .gnc-popup-header {
        padding: 20px 20px 16px;
    }
    
    .gnc-popup-body {
        padding: 20px;
    }
    
    .gnc-input-row {
        grid-template-columns: 1fr;
    }
    
    .gnc-input-row .gnc-input-field:last-child {
        grid-column: auto;
    }
    
    .gnc-logo-text {
        font-size: 16px;
        letter-spacing: 1px;
    }
}

/* No option message */
.gnc-no-option {
    padding: 30px;
    background: #fef2f2;
    border: 1px solid #ef4444;
    border-radius: var(--gnc-radius-sm);
    text-align: center;
    margin: 20px 0;
}

.gnc-no-option p {
    margin: 0 0 10px;
    color: #991b1b;
    font-size: 14px;
}

.gnc-no-option p:last-child {
    margin-bottom: 0;
}