:root{--bg:#f6f7f9;--surface:#fff;--surface-strong:#fbfcfd;--line:#dbe2ea;--line-strong:#c6d1dc;--text:#15202b;--muted:#5b6b7c;--accent:#1e6fd9;--accent-soft:#e8f1ff;--success:#0f8b6d;--danger:#c93b3b;--shadow:0 22px 50px rgba(31,44,63,.08)}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:radial-gradient(circle at top right,rgba(30,111,217,.08),transparent 34%),linear-gradient(180deg,#fbfcfe,#f2f5f8);color:var(--text);font-family:Segoe UI,Helvetica Neue,sans-serif}body{min-height:100vh}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.login-shell{display:grid;min-height:100vh;place-items:center;padding:32px}.login-stage{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;width:min(1120px,100%);align-items:stretch}.login-stage-single{grid-template-columns:minmax(320px,520px);justify-content:center}.auth-card,.hero-card,.login-sidecopy,.panel{background:hsla(0,0%,100%,.95);border:1px solid 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minmax(340px,.9fr);gap:24px}.panel{padding:24px;display:flex;flex-direction:column;gap:18px}.panel-head{display:flex;align-items:flex-start;justify-content:space-between}.upload-zone{position:relative;border-radius:24px;padding:28px;min-height:180px;background:linear-gradient(180deg,hsla(0,0%,100%,.98),rgba(246,249,252,.96)),repeating-linear-gradient(90deg,rgba(30,111,217,.04),rgba(30,111,217,.04) 12px,transparent 0,transparent 24px);display:flex;flex-direction:column;justify-content:center;gap:8px}.upload-zone input{position:absolute;inset:0;opacity:0}.upload-title{font-size:1.15rem;font-weight:800}.upload-text{color:var(--muted);max-width:36ch}.file-list{display:flex;flex-direction:column;gap:10px}.file-row{border-radius:16px;padding:14px 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