.st-page{height:calc(100vh - 56px);display:flex;flex-direction:column;background:var(--bg-primary);color:white;overflow:hidden}.st-header{height:64px;padding:0 1.5rem;background:rgba(13,14,24,.8);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.05);justify-content:space-between;flex-shrink:0;z-index:100}.st-header,.st-header-left{display:flex;align-items:center}.st-header-left{gap:1.5rem}.st-back-btn{display:flex;align-items:center;gap:.5rem;color:var(--text-secondary);font-size:.875rem;font-weight:500;transition:color .2s;text-decoration:none}.st-back-btn:hover{color:white}.st-back-btn svg{width:20px;height:20px}.st-title-group{display:flex;flex-direction:column}.st-title{font-size:1.125rem;font-weight:600;color:white}.st-subtitle{font-size:.75rem;color:var(--text-secondary)}.st-header-actions{display:flex;align-items:center;gap:.75rem}.st-main{flex:1;display:flex;overflow:hidden;position:relative}.st-sidebar{width:320px;background:rgba(13,14,24,.4);border-right:1px solid rgba(255,255,255,.05);padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem;overflow-y:auto;flex-shrink:0}.st-preview-area{flex:1;display:flex;flex-direction:column;background:#000;position:relative;overflow:hidden;padding:1.5rem}.st-card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.05);border-radius:12px;padding:1.25rem}.st-card-title{display:flex;align-items:center;gap:.5rem;font-size:.875rem;font-weight:600;color:var(--text-secondary);margin-bottom:1rem}.st-empty-state{text-align:center;max-width:400px;flex-direction:column;margin:auto}.st-empty-state,.st-upload-icon{display:flex;align-items:center;justify-content:center}.st-upload-icon{width:64px;height:64px;background:rgba(45,212,191,.1);border-radius:50%;color:#2dd4bf;margin-bottom:1.5rem}.st-btn-primary{background:#2dd4bf;color:#000;padding:.75rem 1.25rem;border-radius:8px;font-weight:600;font-size:.875rem;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:all .2s;border:none;cursor:pointer}.st-btn-primary:hover:not(:disabled){background:#26c1ac;transform:translateY(-1px)}.st-btn-primary:active:not(:disabled){transform:translateY(0)}.st-btn-primary:disabled{opacity:.5;cursor:not-allowed}.st-btn-secondary{background:rgba(255,255,255,.05);color:white;border:1px solid rgba(255,255,255,.1)}.st-btn-secondary:hover:not(:disabled){background:rgba(255,255,255,.1)}.st-progress-overlay{position:absolute;inset:0;background:rgba(0,0,0,.8);backdrop-filter:blur(4px);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:50;border-radius:12px}.st-progress-bar{width:240px;height:6px;background:rgba(255,255,255,.1);border-radius:3px;overflow:hidden;margin-bottom:1rem}.st-progress-fill{height:100%;background:#2dd4bf;transition:width .3s ease}.st-timeline-container{height:120px;background:rgba(13,14,24,.6);border-top:1px solid rgba(255,255,255,.05);padding:1rem 1.5rem;flex-shrink:0;z-index:10}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;background:#2dd4bf;border-radius:50%;cursor:pointer;box-shadow:0 0 10px rgba(45,212,191,.5);border:2px solid #0a0a0a}input[type=range]::-moz-range-thumb{width:16px;height:16px;background:#2dd4bf;border-radius:50%;cursor:pointer;box-shadow:0 0 10px rgba(45,212,191,.5);border:2px solid #0a0a0a}@media (max-width:1024px){.st-main{flex-direction:column;overflow-y:auto}.st-sidebar{width:100%;border-right:none;border-top:1px solid rgba(255,255,255,.05);overflow-y:visible}.st-preview-area{min-height:300px;flex:none}}@media (max-width:768px){.st-header{height:auto;padding:.75rem 1rem;flex-direction:column;gap:.75rem;align-items:flex-start}.st-header-actions{width:100%;display:none}.st-header-left{width:100%;justify-content:flex-start;gap:.75rem}.st-back-btn span{display:none}.st-back-btn{width:40px;height:40px;padding:0;justify-content:center;flex-shrink:0;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:10px}.st-title{font-size:1rem;line-height:1.2}.st-subtitle{font-size:.7rem;display:block}}