:root{
  --paper:#f4f2ea; --card:#fbfaf4; --ink:#20302a; --muted:#6c7269;
  --line:#e3ddcf; --line-soft:#eee9dc;
  --pine:#2f6b52; --pine-deep:#234f3d; --pine-soft:#e5f0ea;
  --brass:#b7842c; --brass-soft:#f6ecd4;
  --rust:#b0452c; --rust-soft:#f6e2da;
  --calc:#f0eee2;
  --shadow:0 1px 2px rgba(30,40,30,.05),0 8px 24px rgba(30,40,30,.06);
  --font:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:var(--font);color:var(--ink);background:var(--paper);font-size:14px;line-height:1.45;-webkit-text-size-adjust:100%;padding-bottom:70px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
h1,h2{letter-spacing:-.01em}

/* ---------- App bar + tabs ---------- */
.appbar{background:radial-gradient(120% 140% at 100% 0,rgba(255,255,255,.14),transparent 55%),linear-gradient(135deg,var(--pine-deep),var(--pine));color:#eef4f0}
.appbar-in{max-width:1240px;margin:0 auto;display:flex;align-items:center;gap:16px 22px;flex-wrap:wrap;padding:12px clamp(14px,4vw,40px)}
.brandline{display:flex;align-items:center;gap:9px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:12px;color:#dbe8e0}
.brandline .dot{width:8px;height:8px;border-radius:50%;background:var(--brass)}
.tabs{display:flex;gap:4px;flex-wrap:wrap;margin-right:auto}
.tab{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:10px;color:#cfe0d7;text-decoration:none;font-weight:600;font-size:13.5px;transition:.15s}
.tab .tab-ic{font-size:15px}
.tab:hover{background:rgba(255,255,255,.10);color:#fff}
.tab.on{background:#fbfaf4;color:var(--pine-deep)}
.appbar-right{display:flex;align-items:center;gap:12px}
.whoami{font-size:12.5px;color:#cfe0d7}
.appbar-right .btn.ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);color:#eef4f0}
.appbar-right .btn.ghost:hover{background:rgba(255,255,255,.2);color:#fff}

/* ---------- Module header (trong view) ---------- */
.modhead{background:var(--card);border-bottom:1px solid var(--line)}
.modhead-in{max-width:1240px;margin:0 auto;padding:20px clamp(14px,4vw,40px);display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap}
.modhead h1{font-size:clamp(22px,4vw,32px);font-weight:800;margin:4px 0 0}
.eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--pine)}
.headmeta{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:7px;background:var(--pine-soft);border:1px solid #d3e6dc;color:var(--pine-deep);border-radius:999px;padding:6px 13px;font-size:12.5px}
.chip b{font-weight:700}
.chip.brass{background:var(--brass-soft);border-color:#ecdcb4;color:#7a5410}

.pad{max-width:1240px;margin:0 auto;padding:0 clamp(14px,4vw,40px) 40px}
section{margin-top:26px}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.sec-head h2{font-size:18px;font-weight:700;margin:0}
.sec-head h2 .eyebrow{display:block;margin-bottom:3px}
.hint{color:var(--muted);font-size:12.5px;margin:4px 0 0}

/* ---------- Cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-top:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:15px 16px;box-shadow:var(--shadow)}
.card .lbl{font-size:11.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.card .val{font-size:23px;font-weight:800;margin-top:6px}
.card .sub{font-size:12px;color:var(--muted);margin-top:2px}
.card.owe .val{color:var(--rust)} .card.paid .val{color:var(--pine)}

/* ---------- Buttons ---------- */
.btn{font-family:var(--font);font-size:13px;font-weight:600;border-radius:10px;padding:8px 14px;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer;display:inline-flex;align-items:center;gap:7px;transition:.15s;text-decoration:none}
.btn:hover{border-color:var(--pine);color:var(--pine-deep)}
.btn.primary{background:var(--pine);border-color:var(--pine);color:#fff}
.btn.primary:hover{background:var(--pine-deep);color:#fff}
.btn.ghost{background:transparent}
.btn.small{padding:5px 10px;font-size:12px}
.btn.icon{padding:5px 9px;border-radius:8px;line-height:1}
.btn.block{width:100%;justify-content:center;padding:11px;font-size:14px;margin-top:6px}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* ---------- Tables ---------- */
.tablewrap,.gd{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:auto;max-width:100%}
table{border-collapse:collapse;width:100%}
.tablewrap table{min-width:1080px}
.gd table{min-width:520px}
thead th{position:sticky;top:0;z-index:3;background:#efeadd;color:var(--ink);font-size:11px;font-weight:700;letter-spacing:.03em;text-transform:uppercase;text-align:right;padding:11px 10px;border-bottom:2px solid var(--line);white-space:nowrap}
thead th .u{display:block;font-weight:500;text-transform:none;letter-spacing:0;color:var(--muted);font-size:10.5px}
thead th.l,tbody td.l{text-align:left}
th.stick,td.stick{position:sticky;left:0;z-index:2;background:var(--card)}
thead th.stick{z-index:4;background:#efeadd}
tbody td{padding:6px 8px;border-bottom:1px solid var(--line-soft);text-align:right;white-space:nowrap;vertical-align:middle}
tbody tr:hover td{background:#faf7ee}
tbody tr:hover td.stick{background:#f3efe2}
tbody tr.paid td.stick{box-shadow:inset 3px 0 0 var(--pine)}
tbody tr.unpaid td.stick{box-shadow:inset 3px 0 0 var(--brass)}
.mon{font-weight:700}
.calc{background:var(--calc);border-radius:7px;padding:5px 9px;display:inline-block;min-width:74px;text-align:right;font-weight:600}
.calc.total{background:var(--pine-soft);color:var(--pine-deep);font-weight:800}
.use{display:inline-block;font-size:11px;color:var(--muted);margin-top:2px}
.use b{color:var(--ink)}
input.cell,select.cell{font-family:var(--font);font-variant-numeric:tabular-nums;font-size:13px;text-align:right;width:96px;padding:6px 8px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}
select.cell.sel{text-align:left;width:78px}
input.cell.sm{width:66px}
input.cell.note{text-align:left;width:170px;font-weight:400}
input.cell.date{text-align:left;width:150px}
input.cell:focus,select.cell:focus{outline:none;border-color:var(--pine);box-shadow:0 0 0 3px var(--pine-soft)}
.stt{border:none;cursor:pointer;font-family:var(--font);font-weight:700;font-size:11px;letter-spacing:.04em;border-radius:999px;padding:5px 11px;text-transform:uppercase}
.stt.yes{background:var(--pine-soft);color:var(--pine-deep)} .stt.no{background:var(--brass-soft);color:#7a5410}
.rowdel{color:var(--muted);border-color:transparent;background:transparent}
.rowdel:hover{color:var(--rust);background:var(--rust-soft)}
tfoot td{padding:11px 10px;text-align:right;font-weight:800;border-top:2px solid var(--line);background:#efeadd}
tfoot td.l{text-align:left}
tfoot .foot-l{letter-spacing:.04em;text-transform:uppercase;font-size:11.5px;color:var(--muted);font-weight:800}
tfoot .calc.total{background:var(--pine);color:#fff}
tr.onlyrent input.cell.util{opacity:.4}
.flag{display:inline-flex;align-items:center;gap:5px;font-size:11px;color:var(--muted);cursor:pointer;user-select:none}
.flag input{accent-color:var(--pine)}

/* ---------- Settings ---------- */
details.settings{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden;margin-top:20px}
details.settings>summary{cursor:pointer;list-style:none;padding:13px 16px;font-weight:700;display:flex;align-items:center;gap:9px}
details.settings>summary::-webkit-details-marker{display:none}
details.settings>summary .caret{margin-left:auto;transition:.2s;color:var(--muted)}
details.settings[open]>summary .caret{transform:rotate(180deg)}
.setgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;padding:4px 16px 18px}
.field label{display:block;font-size:11.5px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:5px}
.field input{width:100%;font-family:var(--font);font-variant-numeric:tabular-nums;font-size:14px;padding:9px 11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink)}
.field input:focus{outline:none;border-color:var(--pine);box-shadow:0 0 0 3px var(--pine-soft)}

/* ---------- Save bar ---------- */
.savebar{position:fixed;left:0;right:0;bottom:0;z-index:20;background:rgba(251,250,244,.92);backdrop-filter:blur(8px);border-top:1px solid var(--line);padding:9px clamp(14px,4vw,40px)}
.savebar .in{max-width:1240px;margin:0 auto;display:flex;align-items:center;gap:12px;justify-content:space-between;flex-wrap:wrap}
.status{font-size:12.5px;color:var(--muted);display:inline-flex;align-items:center;gap:7px}
.status .led{width:8px;height:8px;border-radius:50%;background:var(--muted)}
.status.saved .led{background:var(--pine)} .status.saving .led{background:var(--brass);animation:pulse 1s infinite}
.status.err .led{background:var(--rust)}
@keyframes pulse{50%{opacity:.3}}

/* ---------- Login ---------- */
.login-body{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(120% 90% at 50% 0,var(--pine-soft),var(--paper) 60%)}
.login-card{width:100%;max-width:380px;background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:30px 28px}
.login-brand{display:flex;align-items:center;gap:9px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:11.5px;color:var(--pine)}
.login-brand .dot{width:8px;height:8px;border-radius:50%;background:var(--brass)}
.login-card h1{font-size:26px;font-weight:800;margin:14px 0 2px}
.login-sub{color:var(--muted);font-size:13px;margin:0 0 18px}
.login-card label{display:block;font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin:12px 0 5px}
.login-card input{width:100%;font-family:var(--font);font-size:15px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
.login-card input:focus{outline:none;border-color:var(--pine);box-shadow:0 0 0 3px var(--pine-soft)}
.login-err{background:var(--rust-soft);color:#8a2f1c;border:1px solid #ecc9bf;border-radius:10px;padding:10px 12px;font-size:13px;margin-bottom:6px}

@media (max-width:640px){ .card .val{font-size:20px} .savebar .in{justify-content:center} .tabs{order:3;width:100%} }
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}