:root{
  color-scheme:light;
  --bg:#faf6ef; --surface:#fff; --surface-2:#f2ebdf; --ink:#2b2620; --ink-2:#5c5348; --line:#e2d8c8;
  --brand:#3f6b55; --brand-ink:#fff; --brand-soft:#e3eee7; --track:#d9e6de; --focus:#1f5fbf; --err:#a52a2a; --err-soft:#fbe9e7;
  --good:#0ca30c; --warning:#fab219; --serious:#ec835a; --critical:#d03b3b; --neutral:#8d8373;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --bg:#1b1916; --surface:#25221e; --surface-2:#2f2b26; --ink:#f3ede4; --ink-2:#c3b8a9; --line:#3d3730;
    --brand:#7fb497; --brand-ink:#14201a; --brand-soft:#26362d; --track:#33463b; --focus:#8ab4ff; --err:#ff9d8f; --err-soft:#3b211d;
    --neutral:#a79c8c;
  }
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:400 17px/1.5 "Sarabun","Noto Sans Thai","Thonburi",system-ui,sans-serif}
h1,h2,h3{line-height:1.25;margin:0}
h1{font-size:1.5rem} h2{font-size:1.2rem} h3{font-size:1.05rem}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.loading{padding:40px;text-align:center}
.hidden{display:none!important}
.muted{color:var(--ink-2)} .small{font-size:.88rem} .num{font-variant-numeric:tabular-nums}

button,.btn{font:inherit;min-height:46px;padding:0 18px;border-radius:10px;border:1.5px solid var(--brand);background:var(--brand);color:var(--brand-ink);font-weight:600;cursor:pointer}
a.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;flex:1}
a.ghost-link{background:transparent;color:var(--brand);flex:none}
a.tiny{min-height:36px;padding:0 12px;font-size:.88rem}
button.ghost{background:transparent;color:var(--brand)}
button.danger{background:transparent;border-color:var(--err);color:var(--err)}
button.tiny{min-height:36px;padding:0 12px;font-size:.88rem}
button:disabled{opacity:.55;cursor:wait}
label{display:block;font-weight:600;font-size:.92rem;margin-bottom:4px}
input,select{width:100%;min-height:46px;font:inherit;color:var(--ink);background:var(--bg);border:1.5px solid var(--line);border-radius:10px;padding:8px 12px}
.field{margin-bottom:14px}
.grid2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 14px}
.err{background:var(--err-soft);color:var(--err);padding:10px 12px;border-radius:10px;margin-bottom:12px;font-weight:600}

/* login */
.auth{min-height:100vh;display:grid;place-items:center;padding:16px}
.auth-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:28px}
.auth-card h1{margin-bottom:4px}
.auth-card p{margin:0 0 20px}
.auth-card button{width:100%}

/* layout */
.top{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.top-in{max-width:1180px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.brand{font-weight:700;font-size:1.1rem;margin-right:auto}
.tabs{display:flex;gap:6px;flex-wrap:wrap}
.tabs button{background:transparent;border-color:transparent;color:var(--ink);min-height:40px;padding:0 12px}
.tabs button[aria-current="page"]{background:var(--brand-soft);color:var(--brand)}
main{max-width:1180px;margin:0 auto;padding:20px 16px 60px}
.who{font-size:.9rem;color:var(--ink-2)}

/* month */
.month{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.month h1{min-width:190px;text-align:center}
.month button{width:46px;padding:0}
.month .now{width:auto;padding:0 14px}

/* summary */
.hero{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:14px}
.hero-num{font-size:2.6rem;font-weight:700;line-height:1.15}
.meter{height:12px;border-radius:6px;background:var(--track);overflow:hidden;margin-top:10px}
.meter i{display:block;height:100%;background:var(--brand);border-radius:6px}
.stats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-bottom:16px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.stat b{display:block;font-size:1.35rem}

/* arrears */
.arrears{background:var(--surface);border:1.5px solid var(--critical);border-radius:12px;padding:14px;margin-bottom:16px}
.arrears ul{list-style:none;margin:8px 0 0;padding:0}
.arrears li button{width:100%;display:flex;justify-content:space-between;gap:12px;text-align:left;background:transparent;color:var(--ink);border:0;border-top:1px solid var(--line);border-radius:0;font-weight:400;padding:8px 2px;min-height:44px}

.notice{background:var(--surface);border:1.5px solid var(--brand);border-radius:12px;padding:14px;margin-bottom:16px}
.notice ul{list-style:none;margin:8px 0 0;padding:0}
.notice li button{width:100%;display:flex;justify-content:space-between;gap:12px;text-align:left;background:transparent;color:var(--ink);border:0;border-top:1px solid var(--line);border-radius:0;font-weight:400;padding:8px 2px;min-height:44px}

/* table */
.tools{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
.tools input{flex:1;min-width:200px;width:auto}
.seg{display:flex;gap:4px}
.seg button{background:transparent;color:var(--ink);border-color:var(--line);padding:0 12px}
.seg button[aria-pressed="true"]{background:var(--brand-soft);color:var(--brand);border-color:var(--brand)}
.board{display:grid;gap:10px}
.board-head,.row{display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:10px;align-items:stretch}
.board-head{font-weight:700;font-size:.9rem;color:var(--ink-2);padding:0 14px}
.row{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.unit{display:flex;flex-direction:column;align-items:flex-start;gap:1px;text-align:left;background:transparent;color:var(--ink);border:1.5px solid transparent;border-radius:10px;padding:4px 6px;font-weight:400;min-height:68px;height:auto}
.unit:hover{border-color:var(--brand)}
.unit b{display:block}
.dep{color:var(--brand);font-weight:600}
.cell{display:flex;flex-direction:column;align-items:flex-start;gap:1px;width:100%;height:100%;min-height:68px;padding:8px 10px;text-align:left;background:var(--bg);color:var(--ink);border:1.5px solid var(--line);border-radius:10px;font-weight:400}
.cell:hover{border-color:var(--brand)}
.cell.future{cursor:default;opacity:.7}
.cell .ktitle{display:none;font-size:.85rem;color:var(--ink-2)}
.st{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:.92rem}
.st i{flex:none;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-size:.75rem;color:#fff;background:var(--neutral)}
.st.paid i{background:var(--good)}
.st.partial i{background:var(--warning);color:#2b2620}
.st.unpaid i{background:var(--neutral)}
.st.overdue i{background:var(--critical)}
.st.pending_meter i{background:var(--serious);color:#2b2620}
.amt{font-size:.92rem}
.empty{text-align:center;padding:36px;background:var(--surface);border:1px dashed var(--line);border-radius:12px}

/* dialog */
dialog{border:0;border-radius:16px;padding:0;width:calc(100% - 32px);max-width:600px;background:var(--surface);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.35)}
dialog::backdrop{background:rgba(20,15,10,.55)}
#dlgBody{padding:22px}
.dlg-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:12px}
.lines{margin:0 0 16px;padding:0}
.lines div{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px solid var(--line)}
.lines dt{color:var(--ink-2)} .lines dd{margin:0;font-weight:600;text-align:right}
.history{list-style:none;margin:8px 0 0;padding:0}
.history li{padding:8px 0;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;align-items:center}
.history li.void{color:var(--ink-2)} .history li.void .pay-amt{text-decoration:line-through}
.pay-actions{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.actions button{flex:1}
.section-gap{margin-top:18px}

.inline{display:flex;gap:8px}
.inline input{flex:1;min-width:0}
.lines .strong{font-size:1.1rem}
.lines .strong dt{color:var(--ink);font-weight:700}
.meters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.blockers{margin:0 0 14px;padding:10px 12px 10px 28px;background:var(--err-soft);color:var(--err);border-radius:10px;font-weight:600}
.photos{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0}
.photo{display:flex;flex-direction:column;gap:4px;width:96px}
.photo img{width:96px;height:96px;object-fit:cover;border-radius:8px;display:block;background:var(--surface-2)}
.file{display:inline-flex;align-items:center;min-height:46px;padding:0 18px;border:1.5px solid var(--brand);border-radius:10px;color:var(--brand);cursor:pointer;margin:0}
#ph{position:absolute;width:1px;height:1px;opacity:0;min-height:0;padding:0;border:0}
#ph:focus-visible + p{outline:3px solid var(--focus)}

.denoms{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:0 12px}
.count-sum{font-size:1.15rem;margin:0 0 12px}
.stack{display:grid;gap:16px}
a.report-csv{flex:none}
tfoot th{border-top:2px solid var(--line)}

/* manage */
.cards{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}
.card{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px}
.card.wide{grid-column:1/-1}
.card h2{margin-bottom:12px}
.scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.92rem}
th,td{text-align:left;padding:8px;border-bottom:1px solid var(--line);vertical-align:top}
.ok-msg{background:var(--brand-soft);color:var(--brand);padding:10px 12px;border-radius:10px;margin-bottom:12px;font-weight:600}

@media (max-width:820px){
  .stats{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .board-head{display:none}
  .row{grid-template-columns:minmax(0,1fr)}
  .unit{min-height:0}
  .cell .ktitle{display:block}
  .cards{grid-template-columns:minmax(0,1fr)}
  .month h1{min-width:0;flex:1}
  .hero-num{font-size:2.2rem}
}
@media (max-width:420px){.grid2{grid-template-columns:minmax(0,1fr)}}
@media (forced-colors:active){.st i{border:1px solid}}