:root{--ink:#24313b;--muted:#687780;--line:#e3ded3;--paper:#fffdf8;--bg:#f4f1e9;--teal:#17665f;--teal-dark:#12534e;--red:#a4423a;--amber:#ad7a23}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input{font:inherit}button{cursor:pointer}.shell{min-height:100vh}.top{height:72px;background:var(--paper);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 clamp(18px,5vw,70px)}.brand{display:flex;align-items:center;gap:10px;font-weight:750}.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--teal);color:#fff;display:grid;place-items:center;font-weight:800}.top-actions{display:flex;align-items:center;gap:12px}.user-identity{max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.muted{color:var(--muted)}.button{border:0;border-radius:9px;padding:10px 15px;font-weight:700;background:var(--teal);color:#fff}.button:hover{background:var(--teal-dark)}.button.secondary{background:transparent;color:var(--ink);border:1px solid var(--line)}.button.danger{background:#f8e2dd;color:var(--red)}.auth-page{min-height:100vh;display:grid;grid-template-columns:1fr 440px;gap:8vw;align-items:center;padding:clamp(26px,7vw,100px)}.auth-copy{max-width:570px}.eyebrow{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:800}.auth-copy h1{font-size:clamp(38px,6vw,76px);line-height:1.02;letter-spacing:-.06em;margin:18px 0}.auth-copy p{color:var(--muted);font-size:17px;line-height:1.7}.auth-card{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:0 18px 70px #24313b18}.auth-card h2{margin:0 0 8px;font-size:25px}.tabs{display:flex;gap:4px;margin:24px 0 20px;padding:4px;background:#f0ece3;border-radius:10px}.tabs button{flex:1;border:0;background:transparent;padding:9px;border-radius:7px;color:var(--muted);font-weight:700}.tabs button.active{background:#fff;color:var(--teal);box-shadow:0 2px 8px #24313b12}.field{display:grid;gap:7px;margin:15px 0}.field label{font-weight:700;font-size:13px}.field input{width:100%;border:1px solid var(--line);border-radius:9px;padding:12px;background:#fff;color:var(--ink);outline:none}.field input:focus{border-color:var(--teal);box-shadow:0 0 0 3px #17665f18}.form-error{background:#f9e3df;color:var(--red);padding:11px;border-radius:9px;font-size:13px;line-height:1.45}.form-success{background:#e1f1ed;color:var(--teal);padding:11px;border-radius:9px;font-size:13px}.full{width:100%;margin-top:9px}.workspace{display:grid;grid-template-columns:240px 1fr;min-height:calc(100vh - 72px)}.sidebar{background:var(--ink);color:#fff;padding:25px 16px}.sidebar .brand{margin:0 10px 38px}.sidebar-nav{display:grid;gap:5px}.sidebar-nav button{border:0;background:transparent;color:#dce6e3;text-align:left;border-radius:8px;padding:11px 12px}.sidebar-nav button.active,.sidebar-nav button:hover{background:#ffffff16;color:#fff}.content{padding:clamp(25px,4vw,60px);max-width:1200px;width:100%}.content h1{font-size:clamp(30px,4vw,52px);letter-spacing:-.05em;margin:10px 0}.surface{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:22px}.grid{display:grid;gap:16px}.upload-zone{border:1.5px dashed #aabcb5;border-radius:13px;padding:45px 22px;text-align:center;background:#fbfaf5}.upload-zone h2{margin:13px 0 5px}.upload-zone input{display:none}.upload-zone .button{margin-top:15px}.status{margin:14px 0;padding:11px;border-radius:9px;background:#eef2ee;color:var(--muted);font-size:13px}.status.error{background:#f9e3df;color:var(--red)}.stats{grid-template-columns:repeat(3,1fr);margin-bottom:16px}.stat-label{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:800}.stat-value{font-size:31px;font-weight:800;margin-top:8px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px}table{width:100%;border-collapse:collapse;min-width:660px}th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);font-size:13px}th{font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}tr:last-child td{border-bottom:0}.pill{display:inline-block;border-radius:99px;padding:4px 9px;font-size:11px;font-weight:800;background:#e0f1ed;color:var(--teal)}.pill.warn{background:#f9e5d8;color:var(--amber)}.result-head{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.result-head h2{margin:0}.file-list{display:grid;gap:8px;margin-top:17px}.file-row{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:10px 0}.file-row:last-child{border-bottom:0}.file-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.empty{padding:24px;text-align:center;color:var(--muted)}.account-hero{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:24px;border-top:4px solid var(--class-color)}.account-class-name{margin:8px 0 4px;font-size:30px}.class-badge{display:inline-block;border:1px solid var(--line);border-radius:99px;padding:7px 12px}.account-limits-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}.account-limit .stat-value{font-size:24px}.small{font-size:12px}@media(max-width:850px){.auth-page{grid-template-columns:1fr;padding:30px 18px}.auth-copy{display:none}.workspace{display:block}.sidebar{padding:14px}.sidebar .brand{margin:0 10px 12px}.sidebar-nav{display:flex;overflow:auto}.sidebar-nav button{white-space:nowrap}.account-limits-grid{grid-template-columns:1fr}.stats{grid-template-columns:1fr}.top{padding:0 16px}.user-identity{display:none}}