:root{--bg:#f4f6f8;--card:#fff;--ink:#1d2733;--muted:#66727f;--line:#dde3e9;--accent:#1f6f6b;--accent-ink:#fff;--warn:#b45309;--warn-bg:#fff4e0;--ok:#166534;--ok-bg:#e4f5ea;--err:#9b1c1c;--err-bg:#fde8e8}
@media (prefers-color-scheme:dark){:root{--bg:#12171c;--card:#1b222a;--ink:#e8edf2;--muted:#9aa7b4;--line:#2d3844;--accent:#3aa59f;--accent-ink:#06201f;--warn:#f5b45a;--warn-bg:#3a2c12;--ok:#7fd69a;--ok-bg:#143322;--err:#f2a0a0;--err-bg:#3d1a1a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Hiragino Sans","Yu Gothic UI","Meiryo",system-ui,sans-serif;line-height:1.6;font-size:16px}
main{max-width:760px;margin:0 auto;padding:16px}
.top{background:var(--card);border-bottom:1px solid var(--line)}
.top-in{max-width:760px;margin:0 auto;padding:10px 16px;display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center}
.brand{font-weight:700}.brand small{display:block;font-weight:400;color:var(--muted);font-size:12px;line-height:1.2}
nav{display:flex;gap:4px;flex:1;flex-wrap:wrap}
nav a{padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--ink)}
nav a.on{background:var(--accent);color:var(--accent-ink)}
.who{font-size:13px;color:var(--muted)}.who a{margin-left:10px;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:16px}
.card.narrow{max-width:420px;margin:40px auto}
h1{font-size:20px;margin:0 0 8px}h2{font-size:17px;margin:0 0 12px}
.muted{color:var(--muted)}.small{font-size:13px}
.btn{display:inline-block;padding:10px 16px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);text-decoration:none;font:inherit;cursor:pointer}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:700}
.btn.big{width:100%;padding:18px;font-size:20px;text-align:center}
.btn.disabled,.btn:disabled{opacity:.4;pointer-events:none}
.datenav{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}
.datelabel{text-align:center}.datelabel strong{font-size:20px}
.jump{margin-top:4px}.jump input{font:inherit;padding:4px 8px}
.chip{display:inline-block;padding:2px 10px;border-radius:99px;font-size:13px;text-decoration:none}
.chip.ok{background:var(--ok-bg);color:var(--ok)}.chip.warn{background:var(--warn-bg);color:var(--warn)}.chip.today{background:var(--accent);color:var(--accent-ink);vertical-align:middle;margin-left:6px}
.status{margin:0 0 14px;text-align:center}
.fields{display:grid;gap:18px;margin-bottom:18px}
.field>label{display:block;font-weight:700;margin-bottom:6px;font-size:18px}.field small{font-weight:400;color:var(--muted);margin-left:6px;font-size:13px}
.stepper{display:flex;gap:10px}
.stepper input{flex:1;min-width:0;text-align:center;font-size:40px;font-weight:700;padding:8px;border:2px solid var(--line);border-radius:12px;background:var(--card);color:var(--ink)}
.stepper input:focus{outline:none;border-color:var(--accent)}
.step{width:76px;font-size:34px;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--ink);cursor:pointer}
.step:active{background:var(--accent);color:var(--accent-ink)}
.sums{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:10px}
.sums div{background:var(--bg);border-radius:10px;padding:10px;text-align:center}.sums span{display:block;font-size:12px}.sums b{font-size:22px}.bad{color:var(--warn)}
.missing{line-height:2.2}
.flash{padding:10px 14px;border-radius:10px;margin-bottom:14px}.flash.ok{background:var(--ok-bg);color:var(--ok)}.flash.err{background:var(--err-bg);color:var(--err)}
form label{display:block;margin-bottom:12px;font-size:14px;color:var(--muted)}
form input[type=text],form input[type=password],form select{display:block;width:100%;margin-top:4px;padding:10px;font:inherit;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink)}
form.inline{display:flex;flex-wrap:wrap;gap:10px;align-items:end}form.inline label{margin:0}form.inline input,form.inline select{width:auto}
table.grid{width:100%;border-collapse:collapse;margin:8px 0}
.grid th,.grid td{padding:7px 8px;border-bottom:1px solid var(--line);text-align:left}.grid .num{text-align:right;font-variant-numeric:tabular-nums}
.grid thead th{font-size:13px;color:var(--muted)}.grid tfoot th{border-top:2px solid var(--ink)}
.grid tr.sun td:first-child,.grid tr.sun td:nth-child(2){color:#c0392b}.grid tr.sat td:first-child,.grid tr.sat td:nth-child(2){color:#2563eb}
.grid tr.miss{background:var(--warn-bg)}.grid tr.future{opacity:.45}
@media (max-width:520px){.grid th:nth-child(2),.grid td:nth-child(2){display:none}.step{width:64px}}