/* k3d - Modern Kitchen 3D Designer Styles */

* {
    box-sizing: border-box;
}

:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #10b981;
    --accent: #f59e0b;
    --danger: #ef4444;
    --bg-dark: #0f172a;
    --bg-panel: #1e293b;
    --bg-card: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border: #475569;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5), 0 4px 6px -4px rgb(0 0 0 / 0.4);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-panel);
    border-radius: 3px;
}

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

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* ===== HEADER ===== */
header {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.95) 0%, rgba(15, 23, 42, 0.98) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(71, 85, 105, 0.5);
    box-shadow: var(--shadow);
}

/* Mode Switcher */
#btn-mode-2d, #btn-mode-3d {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#btn-mode-2d::before, #btn-mode-3d::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

#btn-mode-2d:hover::before, #btn-mode-3d:hover::before {
    left: 100%;
}

#btn-mode-2d.bg-blue-600, #btn-mode-3d.bg-blue-600 {
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4), inset 0 1px 0 rgba(255,255,255,0.1);
}

/* ===== SIDEBAR ===== */
aside {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.98) 0%, rgba(15, 23, 42, 0.99) 100%);
    border-right: 1px solid rgba(71, 85, 105, 0.3);
}

/* Section Cards */
#panel-2d-controls,
#panel-cabinets,
#panel-quote {
    background: rgba(51, 65, 85, 0.4);
    border: 1px solid rgba(71, 85, 105, 0.3);
    border-radius: 12px;
    margin: 12px;
    padding: 16px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(8px);
}

/* Section Headers */
h2 {
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.025em;
}

h2 span {
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

/* Layout Buttons */
.layout-btn {
    background: linear-gradient(145deg, rgba(51, 65, 85, 0.8) 0%, rgba(30, 41, 59, 0.9) 100%);
    border: 1px solid rgba(71, 85, 105, 0.4);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.layout-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(145deg, rgba(59, 130, 246, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.layout-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: var(--shadow), 0 0 10px rgba(59, 130, 246, 0.2);
}

.layout-btn:hover::after {
    opacity: 1;
}

.layout-btn.bg-blue-600 {
    background: linear-gradient(145deg, #3b82f6 0%, #2563eb 100%);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4), inset 0 1px 0 rgba(255,255,255,0.1);
}

/* Wall Dimension Cards */
#selected-wall-main-container,
#left-neighbor-card,
#right-neighbor-card {
    background: linear-gradient(145deg, rgba(51, 65, 85, 0.6) 0%, rgba(30, 41, 59, 0.7) 100%);
    border: 1px solid rgba(71, 85, 105, 0.4);
    border-radius: 10px;
    transition: all 0.2s ease;
}

#selected-wall-main-container:hover,
#left-neighbor-card:hover,
#right-neighbor-card:hover {
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

#selected-wall-main-container.wall-dim-highlight {
    border-color: #3b82f6;
    box-shadow: var(--shadow-glow), inset 0 1px 0 rgba(255,255,255,0.1);
    animation: pulse-highlight 2s ease-in-out infinite;
}

@keyframes pulse-highlight {
    0%, 100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.3), inset 0 1px 0 rgba(255,255,255,0.1); }
    50% { box-shadow: 0 0 30px rgba(59, 130, 246, 0.5), inset 0 1px 0 rgba(255,255,255,0.1); }
}

/* Input Fields */
input[type="number"], input[type="text"], select {
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.8) 0%, rgba(30, 41, 59, 0.9) 100%);
    border: 1px solid rgba(71, 85, 105, 0.5);
    border-radius: 8px;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

input[type="number"]:focus, input[type="text"]:focus, select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2), inset 0 1px 0 rgba(255,255,255,0.05);
}

/* Direction Buttons */
#left-dir-left, #left-dir-down, #left-dir-right,
#right-dir-left, #right-dir-down, #right-dir-right {
    transition: all 0.15s ease;
    border-radius: 6px;
}

#left-dir-left:hover, #left-dir-down:hover, #left-dir-right:hover,
#right-dir-left:hover, #right-dir-down:hover, #right-dir-right:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* Toggle Switches */
input[type="checkbox"] {
    appearance: none;
    width: 40px;
    height: 22px;
    background: linear-gradient(145deg, #334155 0%, #1e293b 100%);
    border-radius: 11px;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(71, 85, 105, 0.5);
}

input[type="checkbox"]::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    background: linear-gradient(145deg, #94a3b8 0%, #64748b 100%);
    border-radius: 50%;
    top: 1px;
    left: 1px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

input[type="checkbox"]:checked {
    background: linear-gradient(145deg, #3b82f6 0%, #2563eb 100%);
}

input[type="checkbox"]:checked::after {
    left: 19px;
    background: linear-gradient(145deg, #ffffff 0%, #f1f5f9 100%);
}

/* SKU Buttons */
.sku-btn {
    background: linear-gradient(145deg, rgba(51, 65, 85, 0.9) 0%, rgba(30, 41, 59, 0.95) 100%);
    border: 1px solid rgba(71, 85, 105, 0.4);
    border-radius: 8px;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.sku-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
    transition: left 0.5s;
}

.sku-btn:hover {
    border-color: rgba(59, 130, 246, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px -4px rgba(0, 0, 0, 0.4), 0 0 10px rgba(59, 130, 246, 0.15);
}

.sku-btn:hover::before {
    left: 100%;
}

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

/* Category Headers */
.category-header {
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.15) 0%, transparent 100%);
    border-left: 3px solid #3b82f6;
    padding-left: 12px;
    margin: 16px 0 8px 0;
}

/* Door Color Buttons */
.door-color-btn {
    border-radius: 10px;
    border: 2px solid transparent;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.door-color-btn:hover {
    transform: scale(1.08) translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.door-color-btn.selected {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3), var(--shadow-lg);
    animation: selected-pulse 2s ease-in-out infinite;
}

@keyframes selected-pulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3), 0 10px 15px -3px rgba(0, 0, 0, 0.5); }
    50% { box-shadow: 0 0 0 5px rgba(59, 130, 246, 0.2), 0 10px 20px -3px rgba(0, 0, 0, 0.6); }
}

/* Cabinet List Items */
.cabinet-item {
    background: linear-gradient(145deg, rgba(51, 65, 85, 0.6) 0%, rgba(30, 41, 59, 0.7) 100%);
    border: 1px solid rgba(71, 85, 105, 0.3);
    border-radius: 10px;
    transition: all 0.2s ease;
}

.cabinet-item:hover {
    background: linear-gradient(145deg, rgba(59, 130, 246, 0.1) 0%, rgba(51, 65, 85, 0.8) 100%);
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateX(4px);
}

.cabinet-item.selected {
    border: 2px solid #3b82f6;
    background: linear-gradient(145deg, rgba(59, 130, 246, 0.15) 0%, rgba(30, 41, 59, 0.9) 100%);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.2);
}

/* Quote Panel */
.quote-row:nth-child(even) {
    background: rgba(59, 130, 246, 0.05);
}

.quote-row:hover {
    background: rgba(59, 130, 246, 0.1);
}

/* Selection Info Panel */
#cabinet-info {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.98) 0%, rgba(15, 23, 42, 0.99) 100%);
    border: 1px solid rgba(71, 85, 105, 0.4);
    border-radius: 16px;
    box-shadow: var(--shadow-lg), 0 0 40px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(20px);
}

/* Main Buttons */
button.bg-blue-600, button.bg-green-600, button.bg-red-600 {
    background: linear-gradient(145deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: 8px;
    font-weight: 500;
    letter-spacing: 0.025em;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255,255,255,0.1);
}

button.bg-blue-600:hover {
    background: linear-gradient(145deg, #4b92f6 0%, #3b82f6 100%);
    transform: translateY(-1px);
    box-shadow: 0 8px 12px -2px rgba(0, 0, 0, 0.4), 0 0 15px rgba(59, 130, 246, 0.3), inset 0 1px 0 rgba(255,255,255,0.15);
}

button.bg-blue-600:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px -1px rgba(0, 0, 0, 0.3), inset 0 1px 2px rgba(0,0,0,0.2);
}

/* Export Button */
button[onclick="exportQuote()"] {
    background: linear-gradient(145deg, #10b981 0%, #059669 100%);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 0 10px rgba(16, 185, 129, 0.2), inset 0 1px 0 rgba(255,255,255,0.1);
}

button[onclick="exportQuote()"]:hover {
    background: linear-gradient(145deg, #20c991 0%, #10b981 100%);
    box-shadow: 0 8px 12px -2px rgba(0, 0, 0, 0.4), 0 0 20px rgba(16, 185, 129, 0.3), inset 0 1px 0 rgba(255,255,255,0.15);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.fade-in {
    animation: fadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

.slide-in {
    animation: slideIn 0.3s ease;
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px rgba(59, 130, 246, 0.3); }
    50% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.6); }
}

/* Canvas Container */
#canvas-container {
    background: radial-gradient(ellipse at center, #1e293b 0%, #0f172a 100%);
    position: relative;
    overflow: hidden;
}

#canvas-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

/* Canvas */
#canvas-2d, #canvas-3d {
    border-radius: 12px;
    box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.3);
}

/* Drag states */
.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.drop-zone {
    border: 2px dashed #3b82f6;
    background: rgba(59, 130, 246, 0.1);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    aside {
        width: 280px;
    }
}

/* Tooltip style enhancements */
[title]:hover::after {
    content: attr(title);
    position: absolute;
    background: rgba(15, 23, 42, 0.95);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 1000;
    border: 1px solid rgba(71, 85, 105, 0.5);
    box-shadow: var(--shadow-lg);
    margin-top: -30px;
}

/* Loading state */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    100% { left: 100%; }
}