:root,html[data-theme=dark]{--bg-0:#1a1c1e;--bg-1:#24282c;--bg-2:#2e3439;--steel:#8a949e;--steel-bright:#c5ced6;--text:#e8ecf0;--text-muted:#9aa3ab;--accent:#e8943a;--accent-hot:#f0a84f;--accent-dim:#e8943a2e;--danger:#d45c4a;--ok:#6baf7a;--line:#c5ced624;--shadow:0 24px 60px #00000073;--page-bg:radial-gradient(1200px 700px at 70% -10%, #e8943a14, transparent 55%), radial-gradient(900px 500px at 10% 100%, #5a6e822e, transparent 50%), linear-gradient(165deg, #15171a 0%, #1f2327 45%, #181b1e 100%);--viewer-chrome:#1e2226;--viewer-page:#141618;--font-display:"Oswald", sans-serif;--font-body:"IBM Plex Sans", system-ui, sans-serif;color-scheme:dark}html[data-theme=light]{--bg-0:#f2f3f5;--bg-1:#fff;--bg-2:#e6e8eb;--steel:#5c6670;--steel-bright:#2a3138;--text:#1a1c1e;--text-muted:#5a6570;--accent:#c56f12;--accent-hot:#a85a0a;--accent-dim:#c56f1224;--danger:#b33b2c;--ok:#3d8a52;--line:#1e242a24;--shadow:0 18px 40px #14181c1f;--page-bg:radial-gradient(1100px 600px at 75% -5%, #c56f121a, transparent 55%), radial-gradient(800px 480px at 5% 100%, #788ca01f, transparent 50%), linear-gradient(165deg, #eceef1 0%, #f7f8f9 45%, #e8eaed 100%);--viewer-chrome:#f4f5f7;--viewer-page:#e8eaed;color-scheme:light}*,:before,:after{box-sizing:border-box}html,body,#root{min-height:100%}body{font-family:var(--font-body);color:var(--text);background:var(--page-bg);background-attachment:fixed;margin:0;transition:color .2s,background .2s}body:before{content:"";pointer-events:none;opacity:.04;z-index:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");position:fixed;inset:0}#root{z-index:1;position:relative}a{color:var(--accent-hot);text-decoration:none}a:hover{text-decoration:underline}button,input,label{font:inherit}button{cursor:pointer;color:inherit;background:0 0;border:none}.sr-only{clip:rect(0, 0, 0, 0);border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@keyframes fade-up{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse-border{0%,to{border-color:#e8943a59}50%{border-color:#e8943ad9}}.upload{width:min(640px,100%);animation:.7s .15s both fade-up}.upload__drop{background:linear-gradient(#2e34398c,#1a1c1e59);border:1.5px dashed #c5ced659;place-items:center;gap:.35rem;padding:2.75rem 1.5rem;transition:border-color .2s,background .2s,transform .2s;display:grid}.upload__drop:hover,.upload__drop:focus-visible{border-color:var(--accent);outline:none}.upload__drop.is-dragging{border-style:solid;border-color:var(--accent);background:var(--accent-dim);animation:1.2s infinite pulse-border;transform:translateY(-2px)}.upload__drop.is-busy{pointer-events:none;opacity:.7}.upload__mark{color:var(--accent);margin-bottom:.5rem}.upload__title{font-family:var(--font-display);letter-spacing:.04em;text-transform:uppercase;margin:0;font-size:1.35rem}.upload__hint{color:var(--text-muted);margin:0;font-size:.95rem}.upload__formats{letter-spacing:.06em;text-transform:uppercase;color:var(--steel);margin:.75rem 0 0;font-size:.78rem}.upload__status,.upload__result,.upload__error{margin-top:1.25rem}.upload__bar{background:var(--bg-2);height:4px;margin-bottom:.65rem;overflow:hidden}.upload__bar-fill{background:linear-gradient(90deg, var(--accent), var(--accent-hot));height:100%;transition:width .15s}.upload__status p{color:var(--text-muted);margin:0;font-size:.9rem}.upload__error{border-left:3px solid var(--danger);color:#f0c4bd;background:#d45c4a1f;padding:.85rem 1rem;font-size:.92rem}.upload__result{border-top:2px solid var(--accent);box-shadow:var(--shadow);background:linear-gradient(#e8943a1a,#24282c80);padding:1.1rem 1.15rem}.upload__result-label{font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;color:var(--accent-hot);margin:0 0 .75rem;font-size:.95rem}.upload__link-row{flex-wrap:wrap;gap:.5rem;display:flex}.upload__link{border:1px solid var(--line);background:var(--bg-0);min-width:0;color:var(--steel-bright);flex:220px;padding:.7rem .85rem}.upload__filename{color:var(--text-muted);margin:.65rem 0 0;font-size:.85rem}.btn{font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;border:1px solid #0000;justify-content:center;align-items:center;gap:.4rem;padding:.7rem 1rem;font-size:.9rem;text-decoration:none;transition:background .15s,color .15s,border-color .15s;display:inline-flex}.btn--accent{background:var(--accent);color:#1a1208}.btn--accent:hover{background:var(--accent-hot);text-decoration:none}.btn--ghost{border-color:var(--line);color:var(--steel-bright);background:0 0}.btn--ghost:hover{border-color:var(--steel);text-decoration:none}.btn--active{border-color:var(--accent);color:var(--accent-hot);background:var(--accent-dim)}.theme-toggle{border:1px solid var(--line);background:var(--bg-1);color:var(--steel-bright);font-family:var(--font-display);letter-spacing:.06em;text-transform:uppercase;align-items:center;gap:.4rem;padding:.55rem .85rem;font-size:.8rem;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.theme-toggle:hover{border-color:var(--accent);color:var(--accent-hot)}.home{flex-direction:column;min-height:100vh;padding:clamp(1rem,3vw,2rem) clamp(1.5rem,4vw,3rem) clamp(1.5rem,4vw,3rem);display:flex}.home__top{justify-content:space-between;align-items:center;width:min(720px,100%);margin:0 auto 1.5rem;display:flex}.home__top-brand{font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;color:var(--steel);font-size:1.1rem}.home__frame{flex-direction:column;align-items:flex-start;gap:0;width:min(720px,100%);margin:auto;display:flex}.home__eyebrow{font-family:var(--font-display);letter-spacing:.28em;text-transform:uppercase;color:var(--steel);margin:0 0 .35rem;font-size:.8rem;animation:.55s both fade-up}.home__brand{font-family:var(--font-display);letter-spacing:.02em;text-transform:uppercase;color:var(--text);margin:0;font-size:clamp(4.2rem,14vw,7.5rem);font-weight:700;line-height:.9;animation:.6s 50ms both fade-up}html[data-theme=dark] .home__brand{text-shadow:0 2px #00000059}.home__tagline{max-width:34rem;color:var(--text-muted);margin:1rem 0 2rem;font-size:clamp(1rem,2.2vw,1.15rem);line-height:1.55;animation:.65s .1s both fade-up}.viewer-canvas{position:absolute;inset:0}.viewer-canvas canvas{display:block;width:100%!important;height:100%!important}.viewer-hint{background:color-mix(in srgb, var(--bg-1) 88%, transparent);border:1px solid var(--line);color:var(--text-muted);letter-spacing:.02em;white-space:nowrap;pointer-events:none;padding:.45rem .85rem;font-size:.8rem;position:absolute;bottom:1rem;left:50%;transform:translate(-50%)}.dim-label,.measure-label{background:color-mix(in srgb, var(--bg-1) 92%, transparent);border:1px solid var(--accent);color:var(--accent-hot);font-family:var(--font-display);letter-spacing:.04em;white-space:nowrap;padding:.2rem .45rem;font-size:.78rem}.measure-label{font-size:.9rem}.bounds-summary{font-family:var(--font-display);letter-spacing:.06em;text-transform:uppercase;color:var(--steel-bright);flex-wrap:wrap;gap:.65rem 1rem;font-size:.85rem;display:flex}.bounds-summary span{color:var(--accent-hot)}.viewer-page{background:var(--viewer-page);flex-direction:column;height:100dvh;display:flex;overflow:hidden}.viewer-bar{border-bottom:1px solid var(--line);background:var(--viewer-chrome);flex-wrap:wrap;flex:none;align-items:center;gap:.75rem 1.25rem;padding:.7rem 1rem;display:flex}.viewer-brand{font-family:var(--font-display);letter-spacing:.06em;text-transform:uppercase;color:var(--text);font-size:1.35rem;text-decoration:none}.viewer-brand:hover{color:var(--accent-hot);text-decoration:none}.viewer-bar__meta{flex-direction:column;flex:180px;gap:.25rem;min-width:0;display:flex}.viewer-filename{color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;font-size:.85rem;overflow:hidden}.viewer-bar__actions{flex-wrap:wrap;align-items:center;gap:.45rem;display:flex}.viewer-display{align-items:center;gap:.4rem;display:inline-flex}.viewer-display__label{font-family:var(--font-display);letter-spacing:.06em;text-transform:uppercase;color:var(--steel);font-size:.75rem}.viewer-display select{border:1px solid var(--line);background:var(--bg-1);color:var(--text);font-family:var(--font-display);letter-spacing:.04em;text-transform:uppercase;padding:.55rem .65rem;font-size:.8rem}.viewer-display select:disabled{opacity:.5}.viewer-measure-banner{background:var(--accent-dim);color:var(--accent-hot);font-family:var(--font-display);letter-spacing:.06em;text-transform:uppercase;border-bottom:1px solid #e8943a59;flex:none;padding:.45rem 1rem;font-size:.85rem}.viewer-main{flex-direction:column;flex:auto;min-height:0;display:flex;position:relative}.viewer-panel{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:.85rem;padding:1.5rem;display:flex}.viewer-panel--error{background:var(--bg-0)}.viewer-error-title{font-family:var(--font-display);letter-spacing:.06em;text-transform:uppercase;color:var(--accent-hot);margin:0;font-size:1.5rem}.viewer-error-detail{max-width:40rem;color:var(--text);word-break:break-word;white-space:pre-wrap;margin:0;font-size:1rem;line-height:1.5}.viewer-error-hint{max-width:36rem;color:var(--text-muted);margin:0;font-size:.85rem}.viewer-error-hint code{color:var(--accent-hot)}.viewer-error-actions{z-index:10;flex-wrap:wrap;justify-content:center;gap:.6rem;margin-top:.5rem;display:flex;position:relative}.viewer-spinner{border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;width:36px;height:36px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.viewer-units{border-top:1px solid var(--line);background:var(--viewer-chrome);color:var(--steel);letter-spacing:.04em;flex:none;margin:0;padding:.4rem 1rem;font-size:.75rem}.viewer-stage{flex:1;min-height:0;position:relative}.viewer-sheet-toggle{border:1px solid var(--line);background:var(--bg-1);flex-wrap:wrap;gap:.25rem;padding:.15rem;display:inline-flex}.viewer-bend-bar{border-bottom:1px solid var(--line);background:var(--viewer-chrome);flex-wrap:wrap;flex:none;align-items:center;gap:.65rem .85rem;padding:.55rem 1rem;display:flex}.viewer-bend-slider{min-width:120px;accent-color:var(--accent);flex:160px;height:1.25rem}.viewer-bend-label{min-width:10rem;font-family:var(--font-display);letter-spacing:.05em;text-transform:uppercase;color:var(--accent-hot);flex:0 auto;font-size:.8rem}@media (width<=720px){.viewer-bar__actions{width:100%}}