:root{--bg-dark: #0f1115;--bg-gradient: radial-gradient(circle at top right, #1a1c29, #0f1115);--glass-bg: rgba(25, 28, 36, .6);--glass-border: rgba(255, 255, 255, .08);--primary-color: #6366f1;--primary-hover: #4f46e5;--success-color: #10b981;--success-hover: #059669;--text-main: #f3f4f6;--text-muted: #9ca3af;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-gradient);background-color:var(--bg-dark);color:var(--text-main);font-family:var(--font-family);height:100vh;overflow:hidden}#app{display:flex;flex-direction:column;height:100vh;padding:1.5rem}header{margin-bottom:2rem;text-align:center}header h1{font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,#a855f7,#6366f1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.5rem}header p{color:var(--text-muted)}.grid-container{display:grid;grid-template-columns:350px 1fr;gap:1.5rem;flex:1;min-height:0}.glass-panel{background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:16px;padding:1.5rem;box-shadow:0 4px 30px #0000004d}.controls-panel{display:flex;flex-direction:column;gap:2rem;overflow-y:auto}.dropzone{border:2px dashed var(--glass-border);border-radius:12px;padding:3rem 1.5rem;text-align:center;transition:all .3s ease;display:flex;flex-direction:column;align-items:center;gap:1rem}.dropzone.dragover{border-color:var(--primary-color);background:#6366f11a}.hidden{display:none!important}.btn{padding:.75rem 1.5rem;border-radius:8px;border:none;font-weight:600;cursor:pointer;transition:all .2s ease;font-family:var(--font-family);width:100%}.btn.primary{background:var(--primary-color);color:#fff}.btn.primary:hover{background:var(--primary-hover);transform:translateY(-2px)}.btn.success{background:var(--success-color);color:#fff}.btn.success:hover{background:var(--success-hover);transform:translateY(-2px)}.action-panel{display:flex;flex-direction:column;gap:1.5rem;animation:fadeIn .4s ease forwards}.model-stats{display:flex;justify-content:space-between;font-size:.875rem;color:var(--text-muted);background:#0003;padding:.75rem;border-radius:8px}#progress-container{display:flex;flex-direction:column;gap:.5rem}.progress-bar-bg{width:100%;height:8px;background:#ffffff1a;border-radius:4px;overflow:hidden}.progress-bar-fill{height:100%;width:0%;background:linear-gradient(90deg,#6366f1,#a855f7);transition:width .3s ease}#progress-text{font-size:.875rem;color:var(--text-muted);text-align:center}.toggle-group{display:flex;gap:.5rem;background:#0000004d;padding:.3rem;border-radius:10px}.btn.toggle{background:transparent;color:var(--text-muted);flex:1;padding:.5rem;border-radius:8px}.btn.toggle.active{background:var(--glass-bg);color:var(--text-main);box-shadow:0 2px 8px #0003}.mt-4{margin-top:1rem}.viewer-panel{position:relative;background:#1e2029;border-radius:16px;overflow:hidden;border:1px solid var(--glass-border);box-shadow:inset 0 0 50px #00000080}#canvas-container{width:100%;height:100%;display:block}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#0f1115b3;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);font-size:1.25rem;color:var(--text-muted);pointer-events:none;transition:opacity .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 900px){.grid-container{grid-template-columns:1fr;grid-template-rows:auto 1fr}}