*{box-sizing:border-box}
:root{--ink:#203047;--muted:#6c7b8e;--blue:#4f67d8;--blue2:#7084ec;--orange:#d78a32;--green:#3aa56c;--red:#d45155;--glass:rgba(255,255,255,.93)}
html,body{margin:0;width:100%;height:100%;overflow:hidden;background:#c9d7dd;font-family:Arial,Helvetica,sans-serif;color:var(--ink)}
button{font:inherit}#app{position:fixed;inset:0;overflow:hidden}#renderCanvas{position:absolute;inset:0;width:100%;height:100%;outline:none;touch-action:none}
.hud{position:fixed;z-index:10;background:var(--glass);border:1px solid rgba(65,82,100,.18);box-shadow:0 12px 34px rgba(28,43,58,.16);backdrop-filter:blur(12px)}
.topbar{left:12px;right:12px;top:10px;border-radius:18px;padding:11px 14px;display:flex;justify-content:space-between;align-items:center;gap:12px}.eyebrow{font-size:9px;font-weight:950;letter-spacing:.1em;color:var(--blue);text-transform:uppercase}
.topbar h1{font-size:24px;margin:2px 0}.phase-text{font-size:11px;color:var(--muted);font-weight:800}.top-stats{display:flex;gap:7px;align-items:center}.top-stats>div{background:#f1f4f7;border-radius:11px;padding:6px 9px;min-width:72px}.top-stats span{display:block;font-size:7px;text-transform:uppercase;font-weight:900;color:#78889a}.top-stats b{font-size:13px}.icon-btn{width:40px;height:40px;border:0;border-radius:11px;background:#edf1f4;font-size:19px;cursor:pointer}
.side-panel{left:14px;top:100px;width:278px;padding:15px;border-radius:18px}.side-panel h2{font-size:21px;margin:4px 0 7px}.side-panel p{font-size:12px;line-height:1.47;color:var(--muted);margin:0}
.measure-card{margin-top:13px;padding:9px 10px;border-radius:11px;background:#f4f6f8;border:1px solid #e5e9ed}.measure-card span{display:block;font-size:8px;color:#76869a;font-weight:900;text-transform:uppercase}.measure-card b{font-size:20px}
.meter-block{margin-top:13px}.meter-head{display:flex;justify-content:space-between;font-size:10px;font-weight:900}.meter{height:9px;margin-top:5px;background:#e3e8ec;border-radius:999px;overflow:hidden}.meter i{display:block;width:0;height:100%;background:linear-gradient(90deg,#d88d33,#55b776);transition:width .15s}
.main-btn,.secondary-btn{border:0;border-radius:11px;min-height:42px;padding:0 13px;font-weight:950;cursor:pointer}.main-btn{width:100%;margin-top:12px;color:white;background:linear-gradient(135deg,var(--blue),var(--blue2))}.secondary-btn{background:#edf1f4;color:#485b6d}
.tool-panel{right:14px;bottom:14px;width:350px;padding:12px;border-radius:18px}.ctl-label{display:block;font-size:8px;font-weight:900;color:#75869a;text-transform:uppercase;margin-bottom:4px}.segmented{display:grid;grid-template-columns:1fr 1fr;gap:5px}.segmented button{min-height:38px;border:1px solid #dfe5ea;background:#f6f8f9;border-radius:9px;font-size:11px;font-weight:900;color:#607187;cursor:pointer}.segmented button.active{background:#5068d9;color:#fff;border-color:#5068d9}
.quality-row{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:8px}.quality-row>div{background:#f3f6f8;border-radius:9px;padding:7px}.quality-row span{display:block;font-size:7px;color:#7a8999;text-transform:uppercase;font-weight:900}.quality-row b{font-size:12px}.tool-panel .secondary-btn{width:100%;margin-top:8px}
.hint{position:fixed;z-index:12;left:50%;bottom:18px;transform:translateX(-50%);padding:9px 14px;border-radius:999px;background:rgba(27,41,54,.92);color:white;font-size:11px;font-weight:900;max-width:70vw;text-align:center;box-shadow:0 8px 24px rgba(20,30,40,.25)}
.overlay{position:fixed;z-index:50;inset:0;background:rgba(18,31,44,.62);display:flex;align-items:center;justify-content:center;padding:15px;backdrop-filter:blur(7px)}.overlay[hidden]{display:none}.result-card{width:min(590px,100%);background:white;border-radius:24px;padding:20px;text-align:center;box-shadow:0 24px 75px rgba(15,30,44,.36)}.grade{width:86px;height:86px;border-radius:50%;display:grid;place-items:center;margin:8px auto;background:#edf0ff;color:#5268d8;font-size:52px;font-weight:950}.result-card h2{margin:6px}.result-card p{font-size:12px;color:#68798c}.result-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:14px 0}.result-grid div{background:#f4f6f8;border-radius:10px;padding:8px}.result-grid span{display:block;font-size:8px;color:#7a8898}.result-grid b{font-size:14px}.error-box{position:fixed;z-index:100;inset:0;display:grid;place-items:center;background:#eef4f6;color:#a13f49;text-align:center;font-weight:900}
@media(max-width:760px){.topbar{left:5px;right:5px;top:5px;padding:8px 9px}.topbar h1{font-size:17px}.eyebrow{font-size:7px}.phase-text{font-size:9px}.top-stats>div:nth-child(2){display:none}.side-panel{left:7px;top:82px;width:190px;padding:10px}.side-panel h2{font-size:17px}.side-panel p{font-size:10px}.tool-panel{left:7px;right:7px;bottom:7px;width:auto}.hint{bottom:142px;max-width:92vw;font-size:10px}}

.error-box[hidden]{display:none!important}