style.css

:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:#20263a;background:#f7f8fc}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 50% -180px,#e8e7ff 0,#f7f8fc 580px)}main{width:min(1180px,calc(100% - 32px));margin:auto;padding:34px 0 70px}header{text-align:center;padding:10px 0 22px}h1{margin:0 0 9px;font-size:48px;line-height:1;letter-spacing:-.045em}h2{margin:0;font-size:21px}header p{margin:9px 0 18px;color:#758097}nav{display:flex;flex-wrap:wrap;justify-content:center;gap:9px}nav a{padding:8px 13px;border:1px solid #d9ddeb;border-radius:999px;color:#343b50;background:#ffffffcc;text-decoration:none;font-size:14px;font-weight:600}.grant{display:flex;justify-content:center;align-items:center;gap:9px;width:fit-content;margin:0 auto 20px;padding:10px 15px;border:1px solid #dad7ff;border-radius:12px;color:#595574;background:#f0efff;font-size:14px}.grant span{width:9px;height:9px;border-radius:50%;background:#6b60ef;box-shadow:0 0 0 4px #dcd9ff}.workspace{display:grid;grid-template-columns:5fr 7fr;gap:18px}.image-panel{position:relative;display:flex;min-width:0;height:520px;overflow:hidden;border:1px solid #dfe3ef;border-radius:16px;background:#fff;box-shadow:0 7px 25px #20264a0f}.panel-title{position:absolute;z-index:2;top:13px;left:13px;padding:8px 12px;border-radius:9px;color:#6058eb;background:#e8e9ff;font-weight:750}.input-panel{cursor:pointer}.input-panel img{width:100%;height:calc(100% - 48px);object-fit:contain;background:#f3f4f8}.panel-footer{position:absolute;bottom:0;width:100%;height:48px;display:grid;place-items:center;color:#8791a8;border-top:1px solid #e5e7ef;font-size:13px}#file-input{display:none}.empty-output{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:#777f95;background:linear-gradient(145deg,#fff,#fafaff)}.empty-output strong{color:#515a72}.empty-output small{color:#9aa2b4}.output-icon{display:grid;place-items:center;width:54px;height:54px;margin-bottom:6px;border-radius:16px;color:#fff;background:linear-gradient(135deg,#6862f3,#9b77ef);font-size:25px;box-shadow:0 8px 24px #d2ceff}.controls{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;margin-top:18px}.control{min-width:0;padding:15px;border:1px solid #e2e5ef;border-radius:14px;background:#fff}.control>label{display:flex;justify-content:space-between;margin-bottom:11px;color:#5d5aec;font-weight:750}.control output{color:#32384a}.control small{display:block;margin-top:7px;color:#99a1b3;font-size:12px}.choices{display:flex;gap:7px}.choices button{flex:1;padding:9px 8px;border:1px solid #e2e5ee;border-radius:10px;color:#4c556c;background:#fafbfe;cursor:pointer}.choices button.selected{color:#fff;border-color:#6862f3;background:#6862f3}input[type=range]{width:100%;accent-color:#6862f3}.run{width:100%;margin-top:15px;padding:14px;border:0;border-radius:13px;color:#fff;background:linear-gradient(100deg,#625cf0,#7770f6);font-size:17px;font-weight:750;opacity:.78}@media(max-width:850px){.workspace,.controls{grid-template-columns:1fr}.image-panel{height:430px}}