:root{
  --bg:#f6f7f9;--surface:#fff;--text:#14181f;--muted:#566070;--line:#d9dee6;--accent:#1d4ed8;--accent-text:#fff;
  --ok-bg:#d6f0dd;--ok-fg:#14532d;--warn-bg:#fde9b8;--warn-fg:#6b4200;--bad-bg:#f9d0d0;--bad-fg:#7f1d1d;--danger:#b91c1c;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0e1116;--surface:#171b22;--text:#e8ebf0;--muted:#9aa4b2;--line:#2b323d;--accent:#7aa2ff;--accent-text:#0e1116;
  --ok-bg:#1c4a2c;--ok-fg:#c9f0d4;--warn-bg:#5a4208;--warn-fg:#fde9b8;--bad-bg:#6b1f1f;--bad-fg:#fbd5d5;--danger:#f87171;}}
:root[data-theme="dark"]{
  --bg:#0e1116;--surface:#171b22;--text:#e8ebf0;--muted:#9aa4b2;--line:#2b323d;--accent:#7aa2ff;--accent-text:#0e1116;
  --ok-bg:#1c4a2c;--ok-fg:#c9f0d4;--warn-bg:#5a4208;--warn-fg:#fde9b8;--bad-bg:#6b1f1f;--bad-fg:#fbd5d5;--danger:#f87171;}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.top{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;max-width:1100px;margin:0 auto}
h1{font-size:1.25rem;margin:0}h2{font-size:1.1rem;margin:0 0 .6rem}h3{margin:.2rem 0 .4rem}
main{max-width:1100px;margin:0 auto;padding:0 16px 32px;display:grid;gap:16px}
.banner,.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px}
.banner p{margin:0;color:var(--muted)}.banner strong{color:var(--text)}
.grid2{display:grid;gap:16px}@media(min-width:860px){.grid2{grid-template-columns:minmax(0,5fr) minmax(0,6fr)}}
label{display:block;font-weight:600;margin:12px 0 4px}
input,select{width:100%;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px 12px;min-height:44px}
input:focus-visible,select:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hint{margin:4px 0 0;font-size:.85rem;color:var(--muted)}
button{font:inherit;border-radius:8px;border:1px solid var(--line);padding:10px 16px;min-height:44px;cursor:pointer;color:var(--text);background:var(--surface)}
.primary{background:var(--accent);color:var(--accent-text);border-color:var(--accent);font-weight:600;width:100%;margin-top:12px}
.primary:disabled{opacity:.6;cursor:wait}
.ghost{background:transparent}.small{min-height:36px;padding:6px 12px;margin-top:8px;font-size:.9rem}
.danger{color:var(--danger);border-color:var(--danger);background:transparent}
.msg{min-height:1.4em;margin:8px 0 0;font-weight:600}.msg.err{color:var(--danger)}
.sr{position:absolute;left:-9999px}
.summary{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.stat{border-radius:12px;padding:12px;text-align:center}.stat b{display:block;font-size:1.6rem}
.s-covered{background:var(--ok-bg);color:var(--ok-fg)}.s-partial{background:var(--warn-bg);color:var(--warn-fg)}.s-uncovered{background:var(--bad-bg);color:var(--bad-fg)}
.legend{font-size:.9rem;color:var(--muted)}.sw{display:inline-block;width:14px;height:14px;border-radius:3px;margin:0 4px 0 12px;vertical-align:-2px}.sw:first-child{margin-left:0}
.ulist{list-style:none;margin:0;padding:0;max-height:520px;overflow:auto}
.ulist li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 0;border-top:1px solid var(--line)}
.ulist li:first-child{border-top:0}.ulist small{display:block;color:var(--muted)}
.months{display:grid;gap:20px}@media(min-width:700px){.months{grid-template-columns:repeat(2,1fr)}}@media(min-width:1000px){.months{grid-template-columns:repeat(3,1fr)}}
.month h3{font-size:1rem}.mgrid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.dow{font-size:.7rem;color:var(--muted);text-align:center}
.day{min-height:44px;padding:2px;border:0;border-radius:6px;font-size:.85rem;line-height:1.1;display:flex;flex-direction:column;align-items:center;justify-content:center}
.day i{font-style:normal;font-size:.7rem}
.day.off{background:transparent;cursor:default}
.day[aria-current="date"]{outline:2px solid var(--accent)}
footer{max-width:1100px;margin:0 auto;padding:0 16px 32px;color:var(--muted);font-size:.85rem}
table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{text-align:left;padding:6px 8px;border-top:1px solid var(--line)}
.wide{grid-column:1/-1;margin:0}.scroll{overflow:auto}

.pop{position:absolute;z-index:20;width:min(280px,calc(100vw - 16px));background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:12px;padding:12px 14px;box-shadow:0 8px 28px rgba(0,0,0,.28)}
.pop[hidden]{display:none}
.pop h3{margin:0 0 6px;font-size:1rem}
.popstatus{margin:0 0 8px;padding:6px 8px;border-radius:8px;font-size:.88rem}
.popwho{margin:0 0 8px;padding:0;list-style:none;font-size:.88rem;color:var(--muted)}
.pop .primary{margin-top:4px}
.modal{width:min(480px,calc(100vw - 24px));max-height:calc(100vh - 24px);overflow:auto;padding:16px;background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:14px}
.modal::backdrop{background:rgba(0,0,0,.55)}
.modalhead{display:flex;justify-content:space-between;align-items:center;gap:12px}
.modalhead h2{margin:0}
#closeModal{font-size:1.5rem;line-height:1;padding:0 12px}
.day[aria-expanded="true"]{outline:2px solid var(--accent)}

.calhead{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px}
.calhead h2{margin:0}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{border:0;border-radius:0;min-height:36px;padding:6px 12px;font-size:.9rem}
.seg button+button{border-left:1px solid var(--line)}
.seg button[aria-pressed="true"]{background:var(--accent);color:var(--accent-text);font-weight:600}
.day .dn{font-weight:700}
.day .who{display:block;width:100%;font-size:.72rem;line-height:1.25;overflow-wrap:anywhere;text-align:left}
.day .who.more{opacity:.8}
.cal-large .months{grid-template-columns:1fr}
@media(min-width:900px){.cal-large .months{grid-template-columns:repeat(2,1fr)}}
.cal-large .month{overflow-x:auto}
.cal-large .mgrid{grid-template-columns:repeat(7,minmax(64px,1fr))}
.cal-large .day{min-height:96px;height:auto;align-items:stretch;justify-content:flex-start;padding:5px 6px;gap:1px;text-align:left}
.cal-large .day.off{min-height:48px}
.tallytotal{margin:0 0 8px;font-size:.95rem}
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px;max-height:180px;overflow:auto}
.chips li{border:1px solid var(--line);border-radius:999px;padding:4px 12px;font-size:.9rem;background:var(--bg)}
.chips small{color:var(--muted)}
.dtable td.who2{min-width:220px}
.dtable .st{font-weight:600;white-space:nowrap}
.dtable .st.s-covered,.dtable .st.s-partial,.dtable .st.s-uncovered{border-radius:6px}
.dtable button{min-height:32px;padding:4px 10px;font-size:.85rem}

.pick{border:0;padding:0;margin:12px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pick legend{font-weight:600;padding:0;margin-bottom:4px}
.pickopt{display:flex;align-items:center;gap:8px;margin:0;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-weight:600;cursor:pointer;min-height:44px}
.pickopt input{width:auto;min-height:0;margin:0}
.pickopt:has(input:checked){border-color:var(--accent);outline:2px solid var(--accent)}
.poprow{display:flex;justify-content:space-between;align-items:center;gap:10px;border-radius:8px;padding:8px 10px;margin-top:6px}
.poprow small{display:block;font-size:.85rem}
.poprow .primary{width:auto;margin:0;min-height:36px;padding:6px 14px}
.cal-small .day.split{min-height:52px;gap:2px;background:transparent;border:1px solid var(--line)}
.cal-small .day.split.s-covered,.cal-small .day.split.s-partial,.cal-small .day.split.s-uncovered{background:transparent;color:var(--text)}
.chips2{display:flex;gap:2px;width:100%;padding:0 2px}
.chip2{flex:1;font-size:.68rem;border-radius:4px;padding:1px 0;text-align:center}
.dtable td.slot{min-width:150px}
.dtable .slotwho{display:block;margin-bottom:4px}

.copyrow{display:flex;gap:8px}.copyrow input{flex:1;min-width:0}.copyrow button{white-space:nowrap}
.exbtns{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.exphint{margin:0 0 4px}
.howto{margin-top:12px;font-size:.9rem}.howto summary{cursor:pointer;font-weight:600}.howto p{margin:6px 0;color:var(--muted)}