.litho-page{width:100vw;height:100vh;font-family:var(--font-body);background:#0a0a0f;padding-top:60px;display:flex;overflow:hidden}.litho-sidebar{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:10;background:#14141cf2;border-right:1px solid #ffffff0d;flex-direction:column;width:380px;display:flex;overflow-y:auto;box-shadow:5px 0 25px #00000080}.sidebar-header{border-bottom:1px solid #ffffff0d;padding:24px}.back-link{color:#00d2ff;margin-bottom:12px;font-size:.9rem;font-weight:500;text-decoration:none;display:inline-block}.sidebar-header h2{color:#fff;font-family:var(--font-heading);margin:0 0 8px;font-size:1.8rem;font-weight:700}.sidebar-header p{color:var(--text-secondary);margin:0;font-size:.95rem;line-height:1.4}.controls-container{flex-direction:column;gap:20px;padding:24px;display:flex}.control-group{flex-direction:column;gap:8px;display:flex}.control-group label{color:#fff;font-size:.95rem;font-weight:600}.lb-input{color:#fff;font-family:var(--font-body);background:#00000080;border:1px solid #ffffff1a;border-radius:8px;outline:none;padding:10px 14px;font-size:1rem;transition:all .2s}.lb-input:focus{border-color:#00d2ff;box-shadow:0 0 0 2px #00d2ff33}input[type=range]{-webkit-appearance:none;background:0 0;width:100%}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;cursor:pointer;background:#00d2ff;border-radius:50%;width:16px;height:16px;margin-top:-6px;box-shadow:0 0 10px #00d2ff80}input[type=range]::-webkit-slider-runnable-track{cursor:pointer;background:#fff3;border-radius:2px;width:100%;height:4px}.checkbox-group{flex-direction:row;align-items:center;gap:12px}.checkbox-group input{accent-color:#00d2ff;width:18px;height:18px}.hint{color:var(--text-secondary);font-size:.8rem}.btn-export{color:#fff;font-family:var(--font-body);cursor:pointer;background:linear-gradient(90deg,#00d2ff 0%,#3a7bd5 100%);border:none;border-radius:8px;margin-top:10px;padding:14px;font-size:1.1rem;font-weight:700;transition:all .3s;box-shadow:0 4px 15px #00d2ff4d}.btn-export:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #00d2ff80}.btn-export:disabled{color:#888;cursor:not-allowed;box-shadow:none;background:#444}.litho-canvas-area{background:radial-gradient(circle,#1a1a24 0%,#050508 100%);flex:1;position:relative}.placeholder-overlay{text-align:center;pointer-events:none;z-index:5;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0009;border:1px solid #ffffff1a;border-radius:16px;padding:2rem 3rem;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.placeholder-overlay h3{color:#fff;margin:0 0 10px;font-size:1.5rem}.placeholder-overlay p{color:var(--text-secondary);margin:0}