/* Dark Theme Variables - More Compact */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #121218;
    --bg-tertiary: #1a1a24;
    --bg-card: #151520;
    --bg-input: #0d0d14;
    --border-color: #2a2a3a;
    --text-primary: #e0e0f0;
    --text-secondary: #9090a0;
    --text-muted: #606070;
    --accent-primary: #4a6cf7;
    --accent-secondary: #36a88f;
    --accent-danger: #f74a4a;
    --shadow-dark: rgba(0, 0, 0, 0.5);
    --shadow-light: rgba(255, 255, 255, 0.03);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.4;
    font-size: 14px;
}

.container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Header - More Compact */
.main-header {
    padding: 16px 0;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    text-align: center;
}

.header-content h1 {
    font-size: 1.8rem;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.header-content h1 i {
    color: var(--accent-primary);
}

.subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* Main Layout - 3 Columns with Less Spacing */
.main-layout {
    display: grid;
    grid-template-columns: 280px 1fr 280px;
    gap: 20px;
    margin-bottom: 30px;
    min-height: calc(100vh - 140px);
}

@media (max-width: 1400px) {
    .main-layout {
        grid-template-columns: 260px 1fr 260px;
        gap: 16px;
    }
}

@media (max-width: 1200px) {
    .main-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        gap: 20px;
    }
}

/* Panel Common Styles - More Compact */
.left-panel, .right-panel {
    background-color: var(--bg-secondary);
    border-radius: 8px;
    padding: 16px;
    height: fit-content;
    position: sticky;
    top: 20px;
    box-shadow: 0 4px 12px var(--shadow-dark);
    border: 1px solid var(--border-color);
}

.panel-header {
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.panel-header h2 {
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

/* Control Groups - More Compact */
.control-group {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.control-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.control-group h3 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Compact Form Elements */
.form-group {
    margin-bottom: 16px;
}

.compact-label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Compact Textarea */
.compact-textarea {
    width: 100%;
    padding: 10px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: 'Source Code Pro', monospace;
    font-size: 0.85rem;
    resize: vertical;
    line-height: 1.3;
}

.compact-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(74, 108, 247, 0.2);
}

/* Compact Inputs */
.compact-input {
    width: 100%;
    padding: 8px 12px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: 'Source Code Pro', monospace;
    font-size: 0.85rem;
}

.compact-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(74, 108, 247, 0.2);
}

/* Compact Select */
.compact-select {
    width: 100%;
    padding: 8px 12px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: 'Roboto', sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
}

.compact-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(74, 108, 247, 0.2);
}

/* Compact Checkboxes */
.checkbox-row {
    display: flex;
    gap: 16px;
    margin-top: 8px;
}

.compact-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.compact-checkbox input[type="checkbox"] {
    display: none;
}

.compact-checkbox .checkbox-custom {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    position: relative;
    transition: all 0.2s;
}

.compact-checkbox input[type="checkbox"]:checked + .checkbox-custom {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.compact-checkbox input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 4px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Input with Unit - Compact */
.compact-input-group {
    position: relative;
    display: flex;
}

.compact-input-group input {
    width: 100%;
    padding: 8px 32px 8px 12px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: 'Source Code Pro', monospace;
    font-size: 0.85rem;
}

.compact-input-group .unit {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Color Picker Group */
.color-picker-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.color-picker-group input[type="color"] {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    padding: 0;
    background: none;
    flex-shrink: 0;
}

.alpha-slider {
    flex: 1;
    height: 4px;
    background-color: var(--bg-input);
    border-radius: 2px;
    outline: none;
    -webkit-appearance: none;
}

.alpha-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--accent-primary);
    cursor: pointer;
}

.alpha-value {
    min-width: 35px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: 'Source Code Pro', monospace;
}

/* Form Row - Compact */
.compact-row {
    display: flex;
    gap: 12px;
}

.half-width {
    flex: 1;
}

/* Stats Grid - Compact */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.compact-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: var(--bg-tertiary);
    padding: 10px;
    border-radius: 6px;
    border-top: 3px solid var(--accent-primary);
}

.compact-stat .stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.compact-stat .stat-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'Source Code Pro', monospace;
}

/* Action Buttons - Compact */
.actions-group {
    margin-top: 20px;
}

.compact-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.action-btn {
    padding: 12px 16px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: 'Roboto', sans-serif;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.action-btn.primary {
    background-color: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.action-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 3px 8px var(--shadow-dark);
}

.action-btn.primary:hover {
    background-color: #3a5ce5;
}

/* Center Workspace - Compact */
.center-workspace {
    background-color: var(--bg-secondary);
    border-radius: 8px;
    padding: 16px;
    border: 1px solid var(--border-color);
}

.compact-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.compact-header h2 {
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.texture-count {
    font-weight: 500;
    background-color: var(--accent-primary);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
}

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

@media (max-width: 1400px) {
    .texture-cards-grid {
        grid-template-columns: 1fr;
    }
}

/* Texture Card - Compact */
.compact-card {
    background-color: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.compact-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--shadow-dark);
}

.texture-card-header {
    padding: 12px 16px;
    background-color: var(--bg-tertiary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.texture-card-header h3 {
    font-size: 1rem;
    color: var(--text-primary);
}

.texture-tabs {
    display: flex;
    gap: 4px;
    background-color: var(--bg-secondary);
    border-radius: 6px;
    padding: 2px;
}

.tab-btn {
    padding: 5px 12px;
    background: none;
    border: none;
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.2s;
}

.tab-btn.active {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
}

.texture-card-content {
    padding: 16px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Texture Preview - Compact */
.texture-preview {
    background-color: var(--bg-input);
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 180px;
}

.texture-canvas {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: 4px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
}

.texture-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.texture-info span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Data View - Compact */
.data-view {
    background-color: var(--bg-input);
    border-radius: 6px;
    padding: 12px;
    min-height: 180px;
}

.data-textarea {
    width: 100%;
    height: 160px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--accent-primary);
    font-family: 'Source Code Pro', monospace;
    font-size: 0.8rem;
    line-height: 1.3;
    resize: none;
    padding: 10px;
}

/* Footer - Compact */
.main-footer {
    padding: 20px 0;
    margin-top: 20px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    text-align: center;
}

.footer-content p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .container {
        padding: 0 12px;
    }
    
    .main-layout {
        gap: 16px;
    }
    
    .texture-cards-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .checkbox-row {
        flex-direction: column;
        gap: 8px;
    }
    
    .compact-row {
        flex-direction: column;
        gap: 0;
    }
    
    .header-content h1 {
        font-size: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .compact-stat {
        padding: 8px;
    }
}

/* Small improvements for better contrast */
select option {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}