/* 
  SEGE Passenger Seat Configurator Custom Styles
  Modern Light Corporate Theme
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-primary: #f8fafc; /* Slate 50 */
    --bg-secondary: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.85); /* Semi-transparent white */
    --border-glass: rgba(226, 232, 240, 0.8); /* Slate 200 */
    --text-primary: #0f172a; /* Slate 900 */
    --text-muted: #64748b; /* Slate 500 */
    --accent-color: #2563eb; /* Corporate SEGE Blue */
    --accent-glow: rgba(37, 99, 235, 0.15);
    --accent-success: #10b981;
    --font-sans: 'Outfit', sans-serif;
    --sidebar-width: 380px;
    --transition-speed: 0.3s;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.02);
}
::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* Layout */
#app-container {
    display: flex;
    flex: 1;
    position: relative;
    height: 100%;
    overflow: hidden;
}

/* 3D Viewport */
#canvas-container {
    flex: 1;
    height: 100%;
    position: relative;
    background: radial-gradient(circle at center, #ffffff 0%, #e2e8f0 100%);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: background 0.8s cubic-bezier(0.4, 0, 0.2, 1), background-image 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

#three-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Sidebar Panel Layout */
.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border-glass);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    z-index: 10;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
}

#left-sidebar {
    width: var(--sidebar-width);
    height: 100%;
    border-right: 1px solid var(--border-glass);
}

#right-sidebar {
    width: var(--sidebar-width);
    height: 100%;
    border-left: 1px solid var(--border-glass);
}

.app-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-glass);
}

.app-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.app-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Accordion Custom Styling */
.accordion {
    --bs-accordion-bg: transparent;
    --bs-accordion-border-color: var(--border-glass);
}

.accordion-item {
    border-left: none;
    border-right: none;
    border-radius: 0 !important;
    border-bottom: 1px solid var(--border-glass);
}

.accordion-button {
    font-family: var(--font-sans);
    font-weight: 600;
    color: var(--text-primary) !important;
    font-size: 0.85rem;
    padding: 1.1rem 1.25rem;
    box-shadow: none !important;
    background: transparent;
}

.accordion-button:not(.collapsed) {
    background-color: rgba(37, 99, 235, 0.05) !important;
    color: var(--accent-color) !important;
}

.accordion-button::after {
    filter: grayscale(1) brightness(0.2);
}

.accordion-body {
    padding: 1.25rem;
}

/* Form Styles */
.form-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
    text-transform: uppercase;
}

.form-select {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    border-color: #cbd5e1;
    color: var(--text-primary);
    border-radius: 8px;
    padding: 0.5rem;
}

.form-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Interactive Card Buttons */
.option-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.card-option {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 0.75rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
}

.card-option:hover {
    background: rgba(0, 0, 0, 0.05);
    border-color: #cbd5e1;
    transform: translateY(-2px);
}

.card-option.active {
    background: rgba(37, 99, 235, 0.08);
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
}

.card-option i {
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: color 0.2s ease;
}

.card-option.active i {
    color: var(--accent-color);
}

.card-label {
    font-size: 0.75rem;
    font-weight: 600;
}

/* Color Swatches */
.swatch-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.color-swatch-wrapper {
    position: relative;
    cursor: pointer;
}

.color-swatch {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid transparent;
    transition: all 0.2s ease;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.color-swatch-wrapper:hover .color-swatch {
    transform: scale(1.1);
    box-shadow: 0 0 8px rgba(0,0,0,0.15);
}

.color-swatch-wrapper.active .color-swatch {
    transform: scale(1.1);
    border-color: #475569;
    box-shadow: 0 0 8px var(--accent-glow);
}

.color-tooltip {
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: rgba(15, 23, 42, 0.9);
    color: #fff;
    font-size: 0.6rem;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
    z-index: 20;
}

.color-swatch-wrapper:hover .color-tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Checkboxes Accessories styling */
.checkbox-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border-glass);
    padding: 0.65rem 0.85rem;
    border-radius: 10px;
    transition: all 0.2s ease;
}

.checkbox-option:hover {
    background: rgba(0, 0, 0, 0.04);
    border-color: #cbd5e1;
}

.form-check-input {
    cursor: pointer;
    border-color: #cbd5e1;
}

.form-check-input:checked {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.form-check-input-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
}

/* Dynamic Specifications Panel (Right Sidebar) */
.spec-block {
    background: rgba(0,0,0,0.01);
    border-radius: 12px;
    border: 1px solid var(--border-glass);
    padding: 1rem;
    margin-bottom: 1rem;
    font-family: var(--font-sans);
}

.spec-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.spec-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

.spec-table {
    width: 100%;
    margin-top: 0.5rem;
    border-collapse: collapse;
}

.spec-table td {
    padding: 0.35rem 0;
    font-size: 0.75rem;
    border-bottom: 1px dashed rgba(0, 0, 0, 0.05);
}

.spec-table td.label {
    color: var(--text-muted);
    font-weight: 500;
    text-align: left;
}

.spec-table td.value {
    color: var(--text-primary);
    font-weight: 600;
    text-align: right;
}

/* Pricing Card Component */
.price-block {
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid var(--border-glass);
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.price-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    margin-bottom: 0.45rem;
    color: var(--text-muted);
    font-weight: 500;
}

.price-item span:last-child {
    font-weight: 600;
    color: var(--text-primary);
}

.border-top-dash {
    border-top: 1px dashed #cbd5e1;
}

.price-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-glass);
    padding-top: 0.85rem;
}

.price-total-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
}

.price-total-val {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent-color);
}

/* Control Floating Panel overlaying the canvas */
#viewport-controls {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.75rem;
    z-index: 15;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    padding: 0.5rem;
    border-radius: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.ctrl-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    font-family: var(--font-sans);
}

.ctrl-btn:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.05);
}

.ctrl-btn.active {
    color: #fff;
    background: var(--accent-color);
    box-shadow: 0 2px 8px var(--accent-glow);
}

/* Spinner / Loader overlay */
#loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 100;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(37, 99, 235, 0.1);
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    box-shadow: 0 0 15px var(--accent-glow);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* Mesh Loading Indicator (Mini Spinner for AJAX changes) */
#mesh-loader {
    position: absolute;
    top: 1.5rem;
    left: calc(var(--sidebar-width) + 1.5rem);
    background: #ffffff;
    border: 1px solid var(--border-glass);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 12;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

#mesh-loader.show {
    opacity: 1;
}

.mini-spinner {
    width: 12px;
    height: 12px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-top: 2px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Call to Action Button */
.checkout-btn {
    width: 100%;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border: none;
    border-radius: 12px;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.checkout-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.checkout-btn:active {
    transform: translateY(0);
}

/* Toast Message */
.toast-msg {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: rgba(16, 185, 129, 0.95);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    z-index: 200;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast-msg.show {
    transform: translateY(0);
    opacity: 1;
}

/* Material Texture Previews */
.material-option {
    border: 1px solid var(--border-glass);
    background: rgba(0, 0, 0, 0.02);
    border-radius: 10px;
    padding: 0.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-sans);
}

.material-option:hover {
    background: rgba(0, 0, 0, 0.05);
}

.material-option.active {
    border-color: var(--accent-color);
    background: rgba(37, 99, 235, 0.08);
}

.material-preview {
    width: 100%;
    height: 35px;
    border-radius: 6px;
    margin-bottom: 0.35rem;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
    background-size: cover;
    background-position: center;
}

.material-preview.leather {
    background-color: #d7ccc8;
    background-image: radial-gradient(rgba(0,0,0,0.15) 1px, transparent 1px);
    background-size: 3px 3px;
}

.material-preview.alcantara {
    background-color: #cfd8dc;
    background-image: linear-gradient(45deg, rgba(0,0,0,0.05) 25%, transparent 25%), 
                      linear-gradient(-45deg, rgba(0,0,0,0.05) 25%, transparent 25%);
    background-size: 6px 6px;
}

.material-preview.fabric {
    background-color: #b0bec5;
    background-image: linear-gradient(0deg, transparent 24%, rgba(0,0,0,0.05) 25%, rgba(0,0,0,0.05) 26%, transparent 27%, transparent 74%, rgba(0,0,0,0.05) 75%, rgba(0,0,0,0.05) 76%, transparent 77%), 
                      linear-gradient(90deg, transparent 24%, rgba(0,0,0,0.05) 25%, rgba(0,0,0,0.05) 26%, transparent 27%, transparent 74%, rgba(0,0,0,0.05) 75%, rgba(0,0,0,0.05) 76%, transparent 77%);
    background-size: 8px 8px;
}

.material-name {
    font-size: 0.65rem;
    font-weight: 600;
}

/* Info Banner for controls */
.view-info {
    position: absolute;
    top: 1.5rem;
    right: calc(var(--sidebar-width) + 1.5rem);
    background: rgba(255, 255, 255, 0.85);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.7rem;
    color: var(--text-muted);
    pointer-events: none;
    backdrop-filter: blur(4px);
    border: 1px solid var(--border-glass);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

/* Responsive UI adjustments */
@media(max-width: 1200px) {
    #app-container {
        flex-direction: column;
    }
    #left-sidebar, #right-sidebar {
        width: 100%;
        height: auto;
        border: none;
        border-bottom: 1px solid var(--border-glass);
    }
    #right-sidebar {
        position: relative;
        border-top: 1px solid var(--border-glass);
    }
    #canvas-container {
        height: 50vh;
        min-height: 400px;
    }
    #viewport-controls {
        bottom: 1rem;
    }
}