:root{--bg:#30302e;--bg-dark:#262624;--text:#c2c0b6;--text-h:#e8e6df;--btn:#253e5f;--btn-text:#80aadd;--border:#c2c0b61f;--border-solid:#3e3e3b;color:var(--text);background:var(--bg-dark);-webkit-font-smoothing:antialiased;font:16px/1.5 system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box;margin:0;padding:0}[hidden]{display:none!important}body{margin:0}#app{background:var(--bg-dark);max-width:480px;min-height:100svh;margin:0 auto}.screen{flex-direction:column;min-height:100svh;display:flex}.screen-header{background:var(--bg);border-bottom:1px solid var(--border);border-radius:0 0 16px 16px;align-items:flex-start;gap:12px;padding:24px 20px 20px;display:flex}.screen-header h1{color:var(--text-h);margin-bottom:2px;font-size:22px;font-weight:600;line-height:1.2}.screen-header .subtitle{color:var(--text);font-size:14px}.screen-body{flex-direction:column;flex:1;gap:16px;padding:20px;display:flex}.back-btn{color:var(--text);cursor:pointer;background:0 0;border:none;flex-shrink:0;margin-top:4px;padding:4px}.section-label{letter-spacing:1.5px;color:var(--text);text-transform:uppercase;font-size:12px;font-weight:600}.upload-zone{border:2px dashed var(--border-solid);cursor:pointer;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:40px 20px;transition:border-color .2s;display:flex}.upload-zone:hover,.upload-zone:active{border-color:var(--btn-text)}.upload-icon{color:var(--text);font-size:28px;line-height:1}.upload-main{color:var(--text-h);font-size:15px}.upload-hint{color:var(--text);opacity:.7;font-size:13px}.divider{color:var(--text);opacity:.5;align-items:center;gap:16px;font-size:14px;display:flex}.divider:before,.divider:after{content:"";background:var(--border-solid);flex:1;height:1px}.btn-outline{width:100%;color:var(--text-h);border:1px solid var(--border-solid);cursor:pointer;background:0 0;border-radius:10px;padding:14px;font-size:15px;font-weight:500;transition:border-color .2s;display:block}.btn-outline:hover{border-color:var(--btn-text)}.search-input{width:100%;color:var(--text-h);background:var(--bg);border:1px solid var(--border-solid);border-radius:10px;outline:none;padding:12px 16px;font-size:15px;transition:border-color .2s}.search-input::placeholder{color:var(--text);opacity:.5}.search-input:focus{border-color:var(--btn-text)}.library-grid{flex-direction:column;gap:10px;display:flex}.library-card{background:var(--bg);border:1px solid var(--border-solid);cursor:pointer;text-align:left;border-radius:12px;align-items:center;gap:14px;width:100%;padding:16px;transition:border-color .2s;display:flex}.library-card:hover{border-color:var(--btn-text)}.library-card:disabled{opacity:.5;cursor:wait}.card-badge{background:var(--btn);width:56px;height:56px;color:var(--btn-text);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.card-info{flex:1;min-width:0}.card-name{color:var(--text-h);font-size:16px;font-weight:600;line-height:1.3}.card-source{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.card-tag{color:var(--btn-text);background:var(--btn);white-space:nowrap;border-radius:20px;flex-shrink:0;padding:4px 12px;font-size:12px;font-weight:500}#viewer-3d-container{aspect-ratio:4/3;background:#1a1a18;border-radius:12px;width:100%;position:relative;overflow:hidden}#viewer-3d-container canvas:not(.orientation-gizmo),#viewer-3d-container model-viewer{display:block;width:100%!important;height:100%!important}.orientation-gizmo{pointer-events:none;z-index:5;width:88px;height:88px;position:absolute;bottom:10px;left:10px}.viewer-hint{text-align:center;color:var(--text);opacity:.6;font-size:13px}.toggle-group{gap:8px;display:flex}.toggle-btn{color:var(--text);border:1px solid var(--border-solid);cursor:pointer;background:0 0;border-radius:10px;flex:1;padding:12px;font-size:14px;font-weight:500;transition:all .2s}.toggle-btn.active{background:var(--btn);color:var(--btn-text);border-color:var(--btn)}.toggle-btn:not(.active):hover{border-color:var(--btn-text)}.btn-ar{width:100%;color:var(--btn-text);background:var(--btn);cursor:pointer;border:none;border-radius:12px;padding:16px;font-size:16px;font-weight:600;transition:opacity .2s}.btn-ar:hover{opacity:.9}.btn-ar:disabled{opacity:.4;cursor:not-allowed}.info-card{background:var(--bg);border:1px solid var(--border-solid);border-radius:12px;padding:16px}.info-card h3{color:var(--text-h);margin-bottom:6px;font-size:15px;font-weight:600}.info-card p{color:var(--text);font-size:14px;line-height:1.5}.hint-text{color:var(--text);text-align:center;opacity:.6;font-size:13px}.overlay-loading{flex-direction:column;align-items:center;gap:12px;padding:24px 0;display:flex}.spinner{border:3px solid var(--border-solid);border-top-color:var(--btn-text);border-radius:50%;width:32px;height:32px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.overlay-loading p{color:var(--text);font-size:14px}.card-spinner{border:2px solid var(--border-solid);border-top-color:var(--btn-text);border-radius:50%;flex-shrink:0;width:20px;height:20px;animation:.7s linear infinite spin}.error-msg{color:#e57373;text-align:center;padding:8px;font-size:13px}#ar-overlay{z-index:10000;pointer-events:auto;width:100%;height:100%;position:fixed;top:0;left:0}#ar-overlay>*{pointer-events:auto}#ar-instruction{text-align:center;color:#fff;pointer-events:none;width:100%;font-size:18px;position:fixed;bottom:60px;left:0}#move-btn{cursor:pointer;background:#ffffffe6;border:none;border-radius:8px;padding:15px 30px;font-size:18px;display:none;position:absolute;bottom:60px;left:50%;transform:translate(-50%)}#exit-ar{cursor:pointer;background:#ffffffe6;border:none;border-radius:50%;width:40px;height:40px;font-size:18px;position:absolute;top:35px;right:20px}:root{--hotspot-cofactor:#d4a843;--hotspot-metal:#a0a4ab;--hotspot-carbohydrate:#6cb86f;--hotspot-ligand:#80aadd;--hotspot-active:#e07b6f;--hotspot-binding:#b984d8;--hotspot-default:#c2c0b6}.protein-hotspot{background:var(--hotspot-default);width:18px;height:18px;box-shadow:0 0 0 1.5px var(--hotspot-default), 0 2px 6px #0006;cursor:pointer;pointer-events:auto;border:2px solid #1a1a18;border-radius:50%;padding:0;transition:opacity .12s ease-out,transform .12s ease-out;transform:translate(-50%,-50%)}.protein-hotspot:hover,.protein-hotspot:focus-visible{outline:none;transform:translate(-50%,-50%)scale(1.2)}.protein-hotspot:focus-visible{box-shadow:0 0 0 1.5px var(--hotspot-default), 0 0 0 4px #80aadd80}.protein-hotspot[data-kind=cofactor]{background:var(--hotspot-cofactor);box-shadow:0 0 0 1.5px var(--hotspot-cofactor), 0 2px 6px #0006}.protein-hotspot[data-kind=metal]{background:var(--hotspot-metal);box-shadow:0 0 0 1.5px var(--hotspot-metal), 0 2px 6px #0006}.protein-hotspot[data-kind=carbohydrate]{background:var(--hotspot-carbohydrate);box-shadow:0 0 0 1.5px var(--hotspot-carbohydrate), 0 2px 6px #0006}.protein-hotspot[data-kind=ligand]{background:var(--hotspot-ligand);box-shadow:0 0 0 1.5px var(--hotspot-ligand), 0 2px 6px #0006}.protein-hotspot[data-kind=active_site]{background:var(--hotspot-active);box-shadow:0 0 0 1.5px var(--hotspot-active), 0 2px 6px #0006}.protein-hotspot[data-kind=binding_site]{background:var(--hotspot-binding);box-shadow:0 0 0 1.5px var(--hotspot-binding), 0 2px 6px #0006}.protein-hotspot.occluded,.protein-hotspot[data-visibility=hidden]{opacity:.25}.annotation-backdrop{opacity:0;pointer-events:none;z-index:100;background:#00000059;transition:opacity .2s ease-out;position:fixed;inset:0}.annotation-backdrop.visible{opacity:1;pointer-events:auto}.annotation-sheet{background:var(--bg);max-width:480px;color:var(--text);z-index:101;touch-action:pan-y;border-top-left-radius:18px;border-top-right-radius:18px;margin:0 auto;padding:8px 22px 28px;transition:transform .26s cubic-bezier(.22,1,.36,1);position:fixed;bottom:0;left:0;right:0;transform:translateY(100%);box-shadow:0 -8px 28px #0006}.annotation-sheet.visible{transform:translateY(0)}.annotation-handle{background:var(--border-solid);cursor:grab;touch-action:none;border-radius:999px;width:44px;height:5px;margin:8px auto 14px}.annotation-handle:active{cursor:grabbing}.annotation-close{width:30px;height:30px;color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:50%;place-items:center;display:grid;position:absolute;top:12px;right:14px}.annotation-close:hover{background:var(--border)}.annotation-kind{text-transform:uppercase;letter-spacing:.06em;color:var(--btn-text);background:#80aadd26;border-radius:999px;margin-bottom:8px;padding:3px 9px;font-size:11px;font-weight:600;display:inline-block}.annotation-kind[data-kind=cofactor]{color:var(--hotspot-cofactor);background:#d4a8432e}.annotation-kind[data-kind=metal]{color:var(--hotspot-metal);background:#a0a4ab2e}.annotation-kind[data-kind=carbohydrate]{color:var(--hotspot-carbohydrate);background:#6cb86f2e}.annotation-kind[data-kind=ligand]{color:var(--hotspot-ligand);background:#80aadd2e}.annotation-kind[data-kind=active_site]{color:var(--hotspot-active);background:#e07b6f2e}.annotation-kind[data-kind=binding_site]{color:var(--hotspot-binding);background:#b984d82e}.annotation-label{color:var(--text-h);margin-bottom:10px;font-size:19px;font-weight:600;line-height:1.25}.annotation-description{color:var(--text);font-size:14.5px;line-height:1.55}.annotation-meta{color:#c2c0b68c;margin-top:12px;font-size:12px}.annotation-meta:empty{display:none}