:root{--navy:#0d1b2a;--blue:#0077be;--blue-dark:#005f98;--ink:#152536;--muted:#647181;--line:#dbe3ea;--bg:#f4f7fa;--white:#fff;--success:#147a4b;--danger:#b42318;--shadow:0 18px 50px rgba(13,27,42,.12)}*{box-sizing:border-box}html{min-height:100%;background:var(--bg)}body{margin:0;min-height:100vh;font-family:Calibri,Arial,sans-serif;color:var(--ink);background:radial-gradient(circle at 15% -10%,rgba(0,119,190,.13),transparent 34%),linear-gradient(180deg,#f9fbfd 0%,#eef3f7 100%)}button,input,textarea{font:inherit}.shell{width:min(920px,calc(100% - 32px));margin:0 auto;min-height:100vh;display:flex;flex-direction:column}.brand{display:flex;align-items:baseline;gap:14px;padding:34px 2px 22px}.wordmark{font-size:28px;font-weight:800;letter-spacing:.08em;color:var(--navy)}.product-name{font-size:18px;font-weight:600;color:var(--blue)}main{flex:1}.card{background:var(--white);border:1px solid rgba(13,27,42,.08);border-radius:20px;box-shadow:var(--shadow);padding:40px}.login-card{width:min(520px,100%);margin:5vh auto 28px}.upload-card{margin:2vh auto 28px}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.13em;color:var(--blue);margin-bottom:10px}h1{font-size:clamp(30px,5vw,44px);line-height:1.05;letter-spacing:-.025em;color:var(--navy);margin:0 0 13px}.lead{font-size:18px;line-height:1.5;color:var(--muted);margin:0 0 28px}.top-row{display:flex;justify-content:space-between;gap:24px;align-items:flex-start}.top-row .lead{margin-bottom:24px}label{display:block;font-size:14px;font-weight:700;color:var(--navy);margin:0 0 8px}input,textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);padding:13px 14px;outline:none;transition:border-color .18s,box-shadow .18s}input:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,119,190,.14)}textarea{resize:vertical;min-height:92px}.password-row{display:flex;gap:8px;margin-bottom:16px}.password-row input{flex:1}.grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{margin-bottom:18px}.optional{font-weight:400;color:var(--muted)}button{border:0;border-radius:10px;cursor:pointer;font-weight:700;transition:transform .12s,background .15s,opacity .15s}button:active{transform:translateY(1px)}button:disabled{opacity:.45;cursor:not-allowed}.primary{background:var(--blue);color:white;padding:14px 18px}.primary:hover:not(:disabled){background:var(--blue-dark)}.secondary,.icon-button{background:#edf3f7;color:var(--navy);padding:11px 14px}.secondary:hover,.icon-button:hover{background:#e1eaf0}.full{width:100%}.dropzone{border:2px dashed #a8bdcc;border-radius:16px;background:#f8fbfd;text-align:center;padding:34px 18px;margin:6px 0 18px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:7px;transition:.18s}.dropzone:hover,.dropzone:focus,.dropzone.dragover{border-color:var(--blue);background:#f0f8fc;outline:none}.upload-icon{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:#dff1fb;color:var(--blue);font-size:28px;font-weight:700}.dropzone strong{font-size:18px;color:var(--navy)}.dropzone span{color:var(--blue);font-weight:600}.dropzone small{color:var(--muted);margin-top:4px}.file-list{display:grid;gap:10px;margin-bottom:18px}.file-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px 16px;align-items:center;border:1px solid var(--line);border-radius:11px;padding:12px 14px;background:#fff}.file-name{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta{font-size:13px;color:var(--muted);margin-top:3px}.file-status{font-size:13px;font-weight:700;color:var(--muted)}.file-status.success{color:var(--success)}.file-status.error{color:var(--danger)}.progress{grid-column:1/-1;height:6px;background:#e8eef3;border-radius:999px;overflow:hidden}.progress>span{display:block;width:0;height:100%;background:var(--blue);transition:width .15s}.message{min-height:22px;margin:12px 0 0;text-align:center;font-weight:600}.message.error{color:var(--danger)}.message.success{color:var(--success)}.session-panel{margin-top:34px;padding-top:30px;border-top:1px solid var(--line)}.session-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:16px}.session-heading .eyebrow{margin-bottom:6px}.session-heading h2{margin:0;color:var(--navy);font-size:23px;letter-spacing:-.015em}.session-count{flex:none;padding:6px 10px;border-radius:999px;background:#edf3f7;color:var(--navy);font-size:13px;font-weight:700}.session-empty{margin:0;padding:18px;border:1px dashed #c3d0da;border-radius:11px;color:var(--muted);text-align:center;background:#f8fbfd}.session-list{display:grid;gap:9px}.session-item{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:14px;padding:13px 14px;border:1px solid var(--line);border-radius:11px;background:#f9fbfc}.session-file-name{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.session-file-meta{font-size:13px;color:var(--muted);margin-top:3px}.session-success{color:var(--success);font-size:13px;font-weight:800}.session-success:before{content:'✓';display:inline-grid;place-items:center;width:18px;height:18px;margin-right:5px;border-radius:50%;background:#dbf2e6}.trust-row{display:flex;justify-content:center;flex-wrap:wrap;gap:12px 26px;color:#526272;font-size:14px;padding:8px 0 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