:root{--bg-main: #0c0e12;--bg-surface: #14171d;--bg-surface-elevated: #1b2028;--bg-surface-hover: #222834;--bg-glass: rgba(20, 23, 29, .75);--border-subtle: rgba(255, 255, 255, .08);--border-medium: rgba(255, 255, 255, .15);--border-active: #e5c158;--accent-gold: #e5c158;--accent-gold-hover: #f3d174;--accent-gold-subtle: rgba(229, 193, 88, .12);--accent-blue: #3b82f6;--accent-emerald: #10b981;--accent-ruby: #ef4444;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-muted: #64748b;--font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-serif: "Playfair Display", Georgia, serif;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 12px rgba(0, 0, 0, .5);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .7);--shadow-gold: 0 0 20px rgba(229, 193, 88, .25);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-xl: 20px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-main);color:var(--text-primary);line-height:1.5;overflow:hidden;-webkit-font-smoothing:antialiased}button,input,select,textarea{font-family:inherit}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-main)}::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.studio-container{display:flex;flex-direction:column;height:100vh;width:100vw;background-color:var(--bg-main)}.studio-main{display:flex;flex:1;overflow:hidden;position:relative}.viewport-wrapper{flex:1;position:relative;height:100%;background:radial-gradient(circle at center,#1b2029,#0c0e12);overflow:hidden}.viewport-canvas{width:100%;height:100%;display:block}.viewport-overlay-bottom{position:absolute;bottom:24px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:12px;background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-subtle);padding:8px 16px;border-radius:30px;box-shadow:var(--shadow-md);z-index:10}.viewport-btn{background:transparent;border:none;color:var(--text-secondary);display:flex;align-items:center;gap:6px;padding:6px 12px;font-size:13px;font-weight:500;border-radius:20px;cursor:pointer;transition:all .2s ease}.viewport-btn:hover{color:var(--text-primary);background:var(--bg-surface-elevated)}.viewport-btn.active{color:var(--accent-gold);background:var(--accent-gold-subtle);border:1px solid rgba(229,193,88,.3)}.navbar{height:60px;background-color:var(--bg-surface);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:space-between;padding:0 20px;z-index:20}.navbar-brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text-primary)}.brand-icon{width:32px;height:32px;background:linear-gradient(135deg,#e5c158,#a88220);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#000;box-shadow:var(--shadow-gold)}.brand-title{font-family:var(--font-sans);font-weight:700;font-size:16px;letter-spacing:-.5px}.brand-badge{font-size:10px;font-weight:600;background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);color:var(--accent-gold);padding:2px 6px;border-radius:4px;margin-left:6px}.navbar-center{display:flex;align-items:center;gap:8px}.project-title-input{background:transparent;border:1px solid transparent;color:var(--text-primary);font-size:14px;font-weight:600;padding:6px 12px;border-radius:var(--radius-sm);transition:all .2s ease;text-align:center}.project-title-input:hover,.project-title-input:focus{background:var(--bg-surface-elevated);border-color:var(--border-subtle);outline:none}.navbar-actions{display:flex;align-items:center;gap:10px}.sidebar-left{width:280px;background-color:var(--bg-surface);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;z-index:15}.sidebar-header{padding:16px 18px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--text-muted);border-bottom:1px solid var(--border-subtle);display:flex;justify-content:space-between;align-items:center}.hierarchy-list{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:6px}.hierarchy-item{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:var(--radius-sm);background:transparent;border:1px solid transparent;cursor:pointer;transition:all .2s ease}.hierarchy-item:hover{background:var(--bg-surface-hover);border-color:var(--border-subtle)}.hierarchy-item.selected{background:var(--bg-surface-elevated);border-color:var(--accent-gold)}.hierarchy-item-left{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:500;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.part-type-indicator{width:8px;height:8px;border-radius:50%}.indicator-metal{background-color:var(--accent-gold);box-shadow:0 0 6px #e5c15899}.indicator-gemstone{background-color:#38bdf8;box-shadow:0 0 6px #38bdf899}.sidebar-right{width:340px;background-color:var(--bg-surface);border-left:1px solid var(--border-subtle);display:flex;flex-direction:column;z-index:15}.inspector-tabs{display:flex;border-bottom:1px solid var(--border-subtle);background-color:var(--bg-surface)}.tab-button{flex:1;padding:14px 10px;background:transparent;border:none;color:var(--text-muted);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;cursor:pointer;transition:all .2s ease;border-bottom:2px solid transparent}.tab-button:hover{color:var(--text-secondary)}.tab-button.active{color:var(--accent-gold);border-bottom-color:var(--accent-gold);background:var(--accent-gold-subtle)}.inspector-content{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:24px}.section-title{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--text-muted);margin-bottom:12px;display:flex;align-items:center;justify-content:space-between}.swatch-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.material-card{display:flex;align-items:center;gap:12px;padding:10px;background-color:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease}.material-card:hover{border-color:var(--border-medium);background-color:var(--bg-surface-hover);transform:translateY(-1px)}.material-card.selected{border-color:var(--accent-gold);background-color:var(--accent-gold-subtle);box-shadow:0 0 12px #e5c15833}.material-color-preview{width:32px;height:32px;border-radius:8px;border:1px solid rgba(255,255,255,.2);flex-shrink:0;box-shadow:inset 0 0 6px #00000080}.material-info{display:flex;flex-direction:column;overflow:hidden}.material-name{font-size:12px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.material-category{font-size:10px;color:var(--text-muted);text-transform:capitalize}.control-group{display:flex;flex-direction:column;gap:8px}.control-label-row{display:flex;justify-content:space-between;font-size:12px;color:var(--text-secondary)}.control-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:4px;border-radius:2px;background:var(--bg-surface-elevated);outline:none}.control-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent-gold);cursor:pointer;box-shadow:0 0 8px #e5c15899}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 16px;font-size:13px;font-weight:600;border-radius:var(--radius-sm);cursor:pointer;transition:all .2s ease;border:1px solid transparent;text-decoration:none}.btn-primary{background-color:var(--accent-gold);color:#000}.btn-primary:hover{background-color:var(--accent-gold-hover);box-shadow:var(--shadow-gold)}.btn-secondary{background-color:var(--bg-surface-elevated);border-color:var(--border-subtle);color:var(--text-primary)}.btn-secondary:hover{background-color:var(--bg-surface-hover);border-color:var(--border-medium)}.btn-icon{padding:8px;border-radius:var(--radius-sm);background:transparent;border:1px solid var(--border-subtle);color:var(--text-secondary);cursor:pointer}.btn-icon:hover{background:var(--bg-surface-hover);color:var(--text-primary)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:100;animation:fadeIn .15s ease-out}.modal-dialog{background:var(--bg-surface);border:1px solid var(--border-medium);border-radius:var(--radius-lg);width:90%;max-width:520px;box-shadow:var(--shadow-lg);overflow:hidden;animation:scaleUp .15s ease-out}.modal-header{padding:18px 24px;border-bottom:1px solid var(--border-subtle);display:flex;justify-content:space-between;align-items:center}.modal-title{font-size:16px;font-weight:700;color:var(--text-primary)}.modal-body{padding:24px;display:flex;flex-direction:column;gap:18px}.modal-footer{padding:16px 24px;border-top:1px solid var(--border-subtle);background:var(--bg-main);display:flex;justify-content:flex-end;gap:12px}.input-field{width:100%;padding:10px 14px;background:var(--bg-main);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);color:var(--text-primary);font-size:14px}.input-field:focus{border-color:var(--accent-gold);outline:none}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleUp{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}