:root{--bg:#f4f6f9;--fg:#1d2430;--muted:#6b7686;--line:#dfe4ea;--card:#fff;--accent:#1a73e8}
@media (prefers-color-scheme:dark){:root{--bg:#14171c;--fg:#e6e9ee;--muted:#98a2b3;--line:#2c333d;--card:#1c2027;--accent:#6aa7ff}}
*{box-sizing:border-box}
body{margin:0;font:15px/1.4 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--fg)}
a{color:var(--accent);text-decoration:none}
.top{position:sticky;top:0;z-index:20;display:flex;gap:12px;align-items:center;padding:8px 14px;background:var(--card);border-bottom:1px solid var(--line);flex-wrap:wrap}
.top .home{font-weight:700;color:var(--fg)}
.classes{display:flex;gap:4px;flex-wrap:wrap;flex:1}
.classes a{padding:3px 9px;border-radius:14px;background:var(--bg);color:var(--fg)}
.classes a.on{background:var(--accent);color:#fff}
.upd,.out{font-size:12px;color:var(--muted)}
main{padding:14px;max-width:100%}
h1{font-size:22px;margin:6px 0 10px}h2{font-size:18px;margin:18px 0 8px}h3{font-size:16px;margin:16px 0 6px}
.muted{color:var(--muted)}.small{font-size:13px}
.subjtabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.subjtabs a{padding:5px 11px;border-radius:8px;border:1px solid var(--line);background:var(--card);color:var(--fg);white-space:nowrap}
.subjtabs a.on{background:var(--accent);border-color:var(--accent);color:#fff}
.scroll{overflow:auto;max-width:100%;background:var(--card);border:1px solid var(--line);border-radius:10px;margin-bottom:14px;max-height:78vh}
table.grid{border-collapse:separate;border-spacing:0;font-size:14px}
.grid th,.grid td{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:0;text-align:center;min-width:34px;height:30px}
.grid thead th{background:var(--card);position:sticky;z-index:2;font-weight:600}
.grid tr.months th{overflow:hidden;white-space:nowrap;top:0;height:26px;font-size:12px;color:var(--muted);text-transform:capitalize;border-bottom:none}
.grid tr.days th{top:26px;height:24px;border-bottom:none;cursor:help}
.grid tr.types th{top:50px;height:20px;font-size:11px;cursor:help}
.grid th.name,.grid td.name{position:sticky;left:0;z-index:3;text-align:left;padding:0 10px;min-width:190px;max-width:230px;white-space:nowrap;background:var(--card);font-weight:500}
.grid thead th.name{z-index:5;top:0}
.grid td.name .n{color:var(--muted);font-size:12px;display:inline-block;width:20px}
.grid tbody tr:nth-child(even) td{background-image:linear-gradient(rgba(127,127,127,.05),rgba(127,127,127,.05))}
td.m{font-weight:700;cursor:help}
td.g5{background:#c9efd3!important;color:#146c2e}
td.g4{background:#e3f4c8!important;color:#4c6a12}
td.g3{background:#fdeec0!important;color:#8a6100}
td.g2,td.g1{background:#f9cfcf!important;color:#a31515}
td.abs{color:#b4473b;background:#f6e3e0!important;font-weight:600}
@media (prefers-color-scheme:dark){td.g5{background:#1f4a2b!important;color:#9fe0b0}td.g4{background:#35461a!important;color:#d1e8a0}td.g3{background:#54431a!important;color:#f3d98a}td.g2,td.g1{background:#5a2323!important;color:#ffb1b1}td.abs{background:#4a2a26!important;color:#f0a79e}}
th.vert{height:140px;min-width:34px;vertical-align:bottom;font-weight:500}
th.vert span{writing-mode:vertical-rl;transform:rotate(180deg);white-space:nowrap;padding:6px 0;display:inline-block}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px}
.card .big{font-size:26px;font-weight:700}
.login{max-width:320px;margin:12vh auto;display:flex;flex-direction:column;gap:10px;background:var(--card);padding:22px;border-radius:14px;border:1px solid var(--line)}
.login input,.login button{font-size:16px;padding:10px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--fg)}
.login button{background:var(--accent);color:#fff;border:none;cursor:pointer}
.err{color:#c0392b;margin:0}
.tip{position:fixed;z-index:50;max-width:320px;background:#222;color:#fff;padding:8px 11px;border-radius:8px;font-size:13px;white-space:pre-line;box-shadow:0 4px 18px rgba(0,0,0,.3);pointer-events:none}
code{background:var(--bg);padding:1px 5px;border-radius:4px}
@media (max-width:640px){main{padding:8px}.grid th.name,.grid td.name{min-width:112px;max-width:128px;overflow:hidden;text-overflow:ellipsis;font-size:12.5px;padding:0 6px}.grid td.name .n{display:none}.top{gap:6px}.grid th,.grid td{min-width:30px}}