:root{--bg:#f4f5f7;--fg:#1d2329;--muted:#6b7580;--line:#d8dce1;--card:#fff;--accent:#1f5fbf;--ok:#1d7a3a;--err:#b3261e;--weekend:#eef0f3;--hol:#fdecc8;--today:#e2edff}
@media(prefers-color-scheme:dark){:root{--bg:#14171a;--fg:#e6e9ec;--muted:#98a2ac;--line:#333a41;--card:#1c2024;--accent:#6aa3ff;--ok:#5fd07f;--err:#ff8a80;--weekend:#22272c;--hol:#4a3b17;--today:#1d3252}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.4 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.top{display:flex;justify-content:space-between;align-items:center;padding:10px 20px;background:var(--card);border-bottom:1px solid var(--line)}
.brand{font-weight:700;color:var(--fg);text-decoration:none}
nav{display:flex;gap:16px;align-items:center}nav form{margin:0}.who{color:var(--muted)}
a{color:var(--accent)}
main{max-width:960px;margin:20px auto;padding:0 12px}
h1{font-size:22px;margin:0}h2{font-size:16px;margin:0 0 8px}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:20px;margin-bottom:20px}
.narrow{max-width:360px;margin:60px auto}
.card label{display:block;margin-bottom:12px;font-size:13px;color:var(--muted)}
.card.inline{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end}.card.inline h2{width:100%}.card.inline label{margin:0}
input,button,.btn{font:inherit;color:var(--fg);background:var(--card);border:1px solid var(--line);border-radius:6px;padding:7px 10px}
input:not([type=checkbox]){display:block;width:100%;margin-top:4px}
.card.inline input{width:auto}
button,.btn{cursor:pointer;text-decoration:none;display:inline-block}
button:hover,.btn:hover{border-color:var(--accent)}
.primary{background:var(--accent);border-color:var(--accent);color:#fff}
@media(prefers-color-scheme:dark){.primary{color:#0b1220}}
.danger{color:var(--err)}
button.link{border:0;background:none;color:var(--accent);padding:0}
.hint,.muted{color:var(--muted);font-size:13px}
.flash{padding:10px 14px;border-radius:6px;margin-bottom:14px;border:1px solid}
.flash.ok{color:var(--ok);border-color:var(--ok)}.flash.err{color:var(--err);border-color:var(--err)}
.monthbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:14px}
.monthbar h1{min-width:150px;text-align:center}
.status{margin-left:auto;font-size:13px;color:var(--muted)}.status.ok{color:var(--ok)}.status.err{color:var(--err)}
table{border-collapse:collapse;width:100%;background:var(--card)}
th,td{border:1px solid var(--line);padding:4px 8px;text-align:center}
th{background:var(--weekend);font-size:13px}
.sheet td.day{text-align:left;white-space:nowrap}.wd{color:var(--muted);font-size:12px;margin-left:4px}
.sheet td.note{text-align:left}
.sheet tr.weekend td{background:var(--weekend)}.sheet tr.holiday td{background:var(--hol)}.sheet tr.today td{background:var(--today)}
.sheet input[type=number]{width:70px;margin:0;padding:3px 6px;text-align:center}
.sheet input[type=checkbox]{width:18px;height:18px}
tfoot td{font-weight:600;background:var(--weekend)}
.users td{text-align:left;vertical-align:middle}.users input{margin:0}.users tr.off{opacity:.6}
.row{display:flex;gap:6px}
@media(max-width:640px){.sheet th:nth-child(6),.sheet td:nth-child(6){display:none}.status{width:100%;margin:0}.users{display:block;overflow-x:auto}}