:root{--bg-1: #f2f6fb;--bg-2: #dce6f2;--panel: rgba(255, 255, 255, .84);--panel-border: rgba(130, 150, 180, .24);--text: #1f2b3d;--muted: #445a78;--accent: #f6c64f;--accent-2: #2f7c95;--danger: #ff7b72;font-family:Avenir Next,Segoe UI,sans-serif}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;overflow:hidden}body{overflow:hidden;background:linear-gradient(180deg,#dfe9f5,#eef4fb);color:var(--text)}.viewer-shell{position:relative;width:100%;height:100%;overflow:hidden}.viewer-canvas{width:100%;height:100%;display:block;touch-action:none}.loading-bar{position:absolute;top:20px;left:50%;transform:translate(-50%);z-index:7;width:min(420px,calc(100vw - 40px));padding:10px 12px;border-radius:12px;border:1px solid var(--panel-border);background:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:opacity .18s ease,transform .18s ease}.loading-bar.is-hidden{opacity:0;pointer-events:none;transform:translate(-50%) translateY(-8px)}.loading-bar.is-error .loading-fill{background:#d94f3d}.loading-track{width:100%;height:8px;border-radius:999px;background:#b2c3db99;overflow:hidden}.loading-fill{width:0;height:100%;border-radius:inherit;background:linear-gradient(90deg,#6ea5d8,#8bc2b0);transition:width .16s ease}.loading-text{margin-top:8px;display:block;font-size:13px;color:var(--muted);text-align:center}.toolbar,.info-panel{position:absolute;z-index:5;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:var(--panel);border:1px solid var(--panel-border);box-shadow:0 14px 34px #2337501f}.settings-toggle{position:absolute;top:20px;left:20px;z-index:6;border:0;border-radius:999px;padding:10px 14px;min-height:44px;background:#ebf2fbf2;color:var(--text);cursor:pointer;font:inherit;font-size:16px;font-weight:600;transition:transform .14s ease,background .14s ease,color .14s ease}.settings-toggle:hover,.settings-toggle:focus-visible{transform:translateY(-1px);background:#e2ecf8}.settings-toggle.is-active{background:var(--accent);color:#2a2006}.toolbar{top:70px;left:20px;display:flex;gap:10px;padding:12px;border-radius:18px;flex-wrap:wrap;max-width:min(92vw,500px);opacity:0;pointer-events:none;transform:translateY(-8px);transition:opacity .15s ease,transform .15s ease}.toolbar.is-open{opacity:1;pointer-events:auto;transform:translateY(0)}.toolbar button{border:0;border-radius:999px;padding:10px 14px;min-height:44px;background:#ebf2fbf2;color:var(--text);cursor:pointer;font:inherit;font-size:15px;font-weight:600;transition:transform .14s ease,background .14s ease,color .14s ease}.toolbar button:hover,.toolbar button:focus-visible{transform:translateY(-1px);background:#e2ecf8}.toolbar button.is-active{background:var(--accent);color:#2a2006}.toolbar button.is-warn{background:#ff7b7233;color:#ffd5d0}.info-panel{left:20px;bottom:20px;max-width:min(92vw,420px);padding:14px 16px;border-radius:18px}.info-panel h1{font-size:16px;margin:0 0 8px;letter-spacing:.04em;text-transform:uppercase}.info-panel p{margin:0;font-size:14px;line-height:1.5;color:var(--muted)}.hotspot-layer{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:4}.hotspot-callout{position:absolute;width:53px;height:calc(53px + var(--line-length, 64px));pointer-events:none;transform:translate(-50%,calc(-100% + 3px)) scale(var(--hotspot-scale, 1));transform-origin:50% 100%;transition:transform .16s ease,opacity .16s ease,filter .16s ease}.hotspot{position:absolute;left:50%;top:0;width:53px;height:53px;border:0;border-radius:0;padding:0;cursor:pointer;pointer-events:auto;background:transparent;box-shadow:none;transform:translate(-50%);filter:drop-shadow(0 6px 10px rgba(20,40,70,.24))}.hotspot-line{position:absolute;left:50%;bottom:6px;width:2px;height:var(--line-length, 64px);transform:translate(-50%);border-radius:999px;background:linear-gradient(180deg,#f6c64ff2,#2e4868e6);box-shadow:0 0 0 1px #ffffff47}.hotspot-pin{position:absolute;left:50%;bottom:0;width:10px;height:10px;transform:translate(-50%);border-radius:50%;background:#fff6db;border:2px solid rgba(47,124,149,.92);box-shadow:0 0 0 3px #fff6}.hotspot-callout:hover,.hotspot-callout:focus-within{filter:drop-shadow(0 8px 12px rgba(20,40,70,.3)) brightness(1.05)}.hotspot img{width:100%;height:100%;object-fit:contain;display:block}.hotspot-callout.is-hidden{opacity:0;transform:translate(-50%,calc(-100% + 3px)) scale(.35);pointer-events:none}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:20px;background:#2c374875;z-index:10}.modal-backdrop[hidden]{display:none}.modal{width:min(560px,100%);max-height:min(72vh,720px);overflow:auto;padding:18px;border-radius:20px;background:linear-gradient(180deg,#fffceff5,#fbf5dff5);border:1px solid rgba(188,168,112,.32);box-shadow:0 18px 40px #5f4e2133}.modal-header{display:flex;justify-content:space-between;align-items:start;gap:18px;margin-bottom:14px}.modal-header h2{margin:0 0 8px}.modal-header p{margin:0;color:#5f4f2c;line-height:1.5;font-size:14px}.modal-close{border:0;border-radius:999px;width:36px;height:36px;cursor:pointer;color:#4f3f1f;background:#e8d5a185;font-size:21px}.modal-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}.modal-card{display:grid;gap:10px;text-decoration:none;color:inherit;padding:12px;border-radius:18px;background:#ffffff0d;border:1px solid rgba(255,255,255,.05)}.modal-card img{width:100%;aspect-ratio:4 / 3;object-fit:cover;border-radius:12px;background:#ffffff14}.modal-card strong{font-size:15px}.modal-card span{color:var(--accent-2);font-size:13px}@media (max-width: 700px){.loading-bar{top:14px;width:min(520px,calc(100vw - 20px));padding:12px 14px}.loading-text{font-size:14px}.settings-toggle{top:14px;left:12px;padding:14px 18px;min-height:52px;font-size:17px}.toolbar{top:70px;right:12px;left:12px;bottom:auto;gap:8px;padding:12px;border-radius:20px;max-width:none}.toolbar button{flex:1 1 calc(50% - 4px);padding:14px 16px;min-height:52px;font-size:16px}.hotspot-callout{width:44px;height:calc(44px + var(--line-length, 54px))}.hotspot{width:44px;height:44px}.hotspot-pin{width:10px;height:10px}.modal-backdrop{padding:12px}.modal{max-height:min(78vh,720px);padding:18px}.modal-header h2{font-size:22px}.modal-header p{font-size:16px;line-height:1.6}.modal-grid{grid-template-columns:1fr}.modal-card{padding:14px}.modal-card strong{font-size:17px}.modal-card span{font-size:14px}.info-panel{top:132px;left:20px;right:20px;bottom:auto}}@media (max-width: 1024px){.toolbar{max-width:min(96vw,720px)}.toolbar button{min-height:50px;font-size:16px}.toolbar [data-action=pick]{display:none}}