:root{--ink:#171b26;--ink-soft:#2a3040;--paper:#ece9e1;--paper-raised:#f6f4ee;--rule:#d6d1c0;--brass:#ab7f2f;--brass-dark:#8a6423;--teal:#2b6e63;--text:#1b2130;--muted:#6b6a60;--danger:#a5402f}*{box-sizing:border-box}body,html{padding:0;margin:0}body{background:var(--paper);color:var(--text);font-family:Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}.wrap{max-width:880px;margin:0 auto;padding:0 20px 80px}header.hero{background:var(--ink);color:var(--paper-raised);padding:56px 20px 40px;margin-bottom:40px;border-bottom:4px solid var(--brass)}header.hero .inner{max-width:880px;margin:0 auto}.eyebrow{font-family:IBM Plex Mono,monospace;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--brass)}.eyebrow,h1{margin:0 0 14px}h1{font-family:"Source Serif 4",serif;font-weight:700;font-size:clamp(28px,4.2vw,44px);line-height:1.12;max-width:22ch}.hero p{font-size:16px;line-height:1.6;color:#c9c7bd;max-width:56ch;margin:0}section{margin-bottom:36px}h2{font-family:"Source Serif 4",serif;font-size:20px;font-weight:700;margin:0 0 6px}.step-label{font-family:IBM Plex Mono,monospace;font-size:12px;color:var(--brass-dark);letter-spacing:.08em;text-transform:uppercase;margin:0 0 4px}.hint{color:var(--muted);font-size:14px;line-height:1.55;margin:0 0 14px}textarea{width:100%;min-height:220px;background:var(--paper-raised);border:1px solid var(--rule);border-radius:4px;padding:14px 16px;font-family:IBM Plex Mono,monospace;font-size:13px;line-height:1.6;color:var(--text);resize:vertical}button:focus-visible,input:focus-visible,textarea:focus{outline:2px solid var(--brass);outline-offset:1px}.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:14px}button{font-family:Inter,sans-serif;font-weight:600;font-size:14px;border-radius:4px;border:1px solid transparent;padding:11px 18px;cursor:pointer;transition:transform .08s ease,opacity .15s ease}button:active{transform:translateY(1px)}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--ink);color:var(--paper-raised)}.btn-primary:hover:not(:disabled){background:var(--ink-soft)}.btn-brass{background:var(--brass);color:#241a06}.btn-brass:hover:not(:disabled){background:var(--brass-dark);color:#fff}.btn-ghost{background:transparent;border-color:var(--rule);color:var(--text)}.btn-ghost:hover:not(:disabled){border-color:var(--ink)}.anchor-box{display:flex;flex-wrap:wrap;gap:18px;background:var(--paper-raised);border:1px solid var(--rule);border-radius:4px;padding:14px 16px;font-family:IBM Plex Mono,monospace;font-size:13px}.anchor-box label{display:flex;flex-direction:column;gap:6px;color:var(--muted)}.anchor-box input{font-size:13px;padding:7px 9px;border:1px solid var(--rule);border-radius:3px;background:#fff}.anchor-box input,.badge{font-family:IBM Plex Mono,monospace}.badge{display:inline-block;font-size:11px;letter-spacing:.06em;padding:2px 8px;border-radius:999px;background:rgba(43,110,99,.12);color:var(--teal)}.ledger{border:1px solid var(--rule);border-radius:4px;overflow:hidden;background:var(--paper-raised)}.ledger-row{display:grid;grid-template-columns:64px 1fr 100px 90px;grid-gap:10px;gap:10px;align-items:center;padding:10px 14px;border-bottom:1px solid var(--rule);font-size:13px}.ledger-row:last-child{border-bottom:none}.ledger-row.head{background:var(--ink);color:var(--paper-raised);font-size:11px;text-transform:uppercase;letter-spacing:.06em}.ledger-row.head,.week-tab{font-family:IBM Plex Mono,monospace}.week-tab{font-weight:500;color:var(--brass-dark);border-left:3px solid var(--brass);padding-left:8px}.ledger-row .course{font-weight:600}.ledger-row .meta{color:var(--muted);font-size:12px;font-weight:400;margin-top:2px}.ledger-row .date,.ledger-row .time{font-family:IBM Plex Mono,monospace;color:var(--ink-soft)}.status{font-family:IBM Plex Mono,monospace;font-size:13px;padding:10px 14px;border-radius:4px;margin-top:12px}.status.ok{background:rgba(43,110,99,.12);color:var(--teal)}.status.error{background:rgba(165,64,47,.12);color:var(--danger)}.status.pending{background:rgba(171,127,47,.12);color:var(--brass-dark)}details.setup{background:var(--paper-raised);border:1px solid var(--rule);border-radius:4px;padding:14px 16px}details.setup summary{cursor:pointer;font-weight:600;font-family:IBM Plex Mono,monospace;font-size:13px}details.setup ol{margin:12px 0 0;padding-left:20px;font-size:13px;line-height:1.7;color:var(--ink-soft)}details.setup code{background:#fff;border:1px solid var(--rule);border-radius:3px;padding:1px 5px;font-size:12px}footer.foot{text-align:center;color:var(--muted);font-size:12px;font-family:IBM Plex Mono,monospace;padding-top:20px;border-top:1px solid var(--rule)}