:root{
  --bg:#f4f6f3; --panel:#fff; --ink:#17201c; --muted:#5f6b66; --line:#e2e7e3;
  --brand:#0e634d; --brand-2:#0b4f3e; --brand-soft:#e3f2ec; --accent:#f5b800;
  --red:#b42318; --red-soft:#fdecea; --amber:#9a6200; --amber-soft:#fff4d6; --blue:#1d5fa8; --blue-soft:#e6f0fb;
  --radius:12px; --shadow:0 1px 2px rgba(16,24,20,.05),0 1px 3px rgba(16,24,20,.06);
  --font: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Consolas, monospace;
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#0f1513; --panel:#17201c; --ink:#e7eeea; --muted:#9aa8a1; --line:#26322d;
    --brand:#3fbf95; --brand-2:#2fa37e; --brand-soft:#173a2f; --red:#f2817a; --red-soft:#3a1a18;
    --amber:#f2c14e; --amber-soft:#382d12; --blue:#7fb2ec; --blue-soft:#15263a; }
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:var(--font);background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5}
a{color:var(--brand)}
h1,h2,h3{line-height:1.25;margin:0 0 .5em}
h2{font-size:1.15rem} h3{font-size:1rem}
small{color:var(--muted)}
.mono{font-family:var(--mono);font-size:.92em}
.muted{color:var(--muted)}
.r{text-align:right}
.inline{display:inline}
.nowrap{white-space:nowrap}

/* ---------- Admin shell ---------- */
.app{display:flex;min-height:100vh}
.side{width:236px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;flex-shrink:0}
.brand{display:flex;align-items:center;gap:10px;padding:18px 16px;text-decoration:none;color:var(--ink)}
.brand b{display:block;font-size:15px} .brand small{display:block;font-size:12px}
.logo{width:34px;height:34px;border-radius:9px;background:var(--brand);color:#ffd23f;display:grid;place-items:center;flex-shrink:0}
.logo svg{fill:#ffd23f;stroke:none;width:20px;height:20px}
.side nav{flex:1;overflow-y:auto;padding:4px 10px}
.side nav a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;color:var(--ink);text-decoration:none;font-size:14px;margin-bottom:2px}
.side nav a:hover{background:var(--bg)}
.side nav a.on{background:var(--brand-soft);color:var(--brand);font-weight:600}
.count{margin-left:auto;font-style:normal;background:var(--accent);color:#3a2a00;border-radius:20px;font-size:11px;padding:1px 7px;font-weight:700}
.who{border-top:1px solid var(--line);padding:14px 16px;font-size:13px}
.who span{display:block;font-weight:600} .who small{display:block;font-weight:400}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;gap:12px;padding:18px 28px 6px}
.top h1{font-size:1.4rem;margin:0}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:6px;color:var(--ink);cursor:pointer}
.content{padding:14px 28px 30px;flex:1}
.foot{padding:16px 28px;color:var(--muted);font-size:12px;text-align:center}
@media (max-width:900px){
  .side{position:fixed;left:-260px;z-index:20;transition:left .2s;box-shadow:0 0 40px rgba(0,0,0,.2)}
  .side.open{left:0}
  .menu-btn{display:inline-flex}
  .top{padding:14px 16px 4px} .content{padding:10px 16px 24px}
}

/* ---------- Cards, grids ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);margin-bottom:18px}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.card-h h2{margin:0}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:900px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.g2,.g3,.g4{grid-template-columns:1fr}}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;box-shadow:var(--shadow)}
.stat span{display:block;color:var(--muted);font-size:12.5px}
.stat b{display:block;font-size:1.45rem;font-variant-numeric:tabular-nums;margin-top:2px}
.stat small{font-size:12px}
.stat.hl{background:var(--brand);border-color:var(--brand);color:#fff}
.stat.hl span,.stat.hl small{color:rgba(255,255,255,.8)}
.bar{height:10px;background:var(--line);border-radius:10px;overflow:hidden;margin:8px 0 4px}
.bar i{display:block;height:100%;background:var(--brand);border-radius:10px}

/* ---------- Tables ---------- */
.tbl-wrap{overflow-x:auto;margin:0 -4px}
table.t{width:100%;border-collapse:collapse;font-size:14px}
table.t th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:600;text-align:left;padding:8px 8px;border-bottom:1px solid var(--line);white-space:nowrap}
table.t td{padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:middle}
table.t tr:last-child td{border-bottom:0}
table.t td.r,table.t th.r{text-align:right;font-variant-numeric:tabular-nums}
table.t tfoot td{font-weight:700;border-top:2px solid var(--line)}
table.t tr.me td{background:var(--brand-soft)}
.empty{color:var(--muted);text-align:center;padding:24px}

/* ---------- Badges ---------- */
.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600;white-space:nowrap}
.b-paid,.b-verified,.b-open{background:var(--brand-soft);color:var(--brand)}
.b-partial,.b-pending,.b-draft{background:var(--amber-soft);color:var(--amber)}
.b-unpaid{background:var(--blue-soft);color:var(--blue)}
.b-overdue,.b-rejected{background:var(--red-soft);color:var(--red)}
.b-closed{background:var(--line);color:var(--muted)}

/* ---------- Forms & buttons ---------- */
label{display:block;font-size:13px;font-weight:600;margin-bottom:4px}
label small{font-weight:400}
.field{margin-bottom:12px}
input[type=text],input[type=number],input[type=email],input[type=password],input[type=date],input[type=time],input[type=tel],select,textarea{
  width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--ink);font:inherit;font-size:14px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand-soft);border-color:var(--brand)}
textarea{min-height:90px;resize:vertical}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:0 14px}
.btn{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--ink);font:inherit;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{border-color:var(--brand)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-p{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-p:hover{background:var(--brand-2)}
.btn-d{color:var(--red)} .btn-d:hover{border-color:var(--red)}
.btn-wa{background:#1f9e55;border-color:#1f9e55;color:#fff}
.btn-s{padding:5px 10px;font-size:13px}
.btns{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.hint{font-size:12.5px;color:var(--muted);margin:2px 0 0}

/* ---------- Flash ---------- */
.flash{padding:11px 14px;border-radius:10px;margin-bottom:14px;font-size:14px}
.flash-ok{background:var(--brand-soft);color:var(--brand)}
.flash-err{background:var(--red-soft);color:var(--red)}
.flash-warn{background:var(--amber-soft);color:var(--amber)}
.callout{background:var(--brand-soft);border-radius:10px;padding:12px 14px;font-size:14px;margin-bottom:14px}
.callout.warn{background:var(--amber-soft);color:var(--amber)}

/* ---------- Login ---------- */
.login-page{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(160deg,var(--brand) 0 38%,var(--bg) 38%)}
.login-box{width:100%;max-width:400px;background:var(--panel);border-radius:16px;padding:28px;box-shadow:0 10px 40px rgba(0,0,0,.12)}
.login-box .brand{padding:0 0 18px}
.login-box h1{font-size:1.25rem}
.login-box .btn{width:100%;justify-content:center;padding:11px}
.login-alt{text-align:center;font-size:13px;margin-top:16px}

/* ---------- Portal ---------- */
.ptop{background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:0 20px}
.ptop .brand{padding:14px 0}
.ptabs{display:flex;gap:2px;overflow-x:auto}
.ptabs a{padding:16px 12px;color:var(--muted);text-decoration:none;font-size:14px;font-weight:600;border-bottom:3px solid transparent;white-space:nowrap}
.ptabs a.on{color:var(--brand);border-color:var(--brand)}
.pwrap{max-width:1000px;margin:0 auto;padding:20px}
.phello{display:flex;justify-content:space-between;color:var(--muted);font-size:13px;margin-bottom:4px;flex-wrap:wrap;gap:6px}
.ptitle{font-size:1.45rem;margin-bottom:16px}
.due-card{background:var(--brand);color:#fff;border-radius:16px;padding:22px;margin-bottom:18px}
.due-card .big{font-size:2.3rem;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1}
.due-card small{color:rgba(255,255,255,.82)}
.due-card .bar{background:rgba(255,255,255,.25)} .due-card .bar i{background:#ffd23f}
.due-card.late{background:var(--red)}
@media (max-width:700px){.ptop{padding:0 12px}.pwrap{padding:14px}}

/* ---------- Receipt ---------- */
.receipt{max-width:480px;background:#fff;color:#17201c;border-radius:14px;overflow:hidden;border:1px solid #dde3df;margin:0 auto 16px;box-shadow:var(--shadow)}
.rhead{background:#0e634d;color:#fff;padding:18px 20px;display:flex;justify-content:space-between;gap:10px}
.rhead b{display:block} .rhead small{color:rgba(255,255,255,.8);font-size:11.5px;display:block;margin-top:2px}
.rlogo svg{fill:#ffd23f;stroke:none;width:30px;height:30px}
.rbody{padding:16px 20px 18px}
.rtitle{display:flex;justify-content:space-between;color:#0e634d;font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.rtable{width:100%;border-collapse:collapse;margin-top:6px;font-size:14px}
.rtable td{padding:7px 0;border-bottom:1px solid #edf0ee;color:#5f6b66}
.rtable td.r{color:#17201c;font-weight:600}
.ramount{display:flex;justify-content:space-between;align-items:center;background:#e3f2ec;color:#0e634d;border-radius:10px;padding:12px 14px;margin:12px 0 4px;font-weight:700}
.ramount b{font-size:1.5rem}
.void{text-align:center;color:#b42318;font-weight:800;font-size:1.4rem;text-transform:uppercase;border:3px solid #b42318;border-radius:8px;margin:12px 0;padding:4px}
.rfoot{text-align:center;font-size:12px;color:#5f6b66;margin:14px 0 0}
.ractions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;max-width:620px;margin:0 auto}

/* ---------- Misc ---------- */
.notice{border-left:4px solid var(--brand);padding:10px 14px;background:var(--panel);border-radius:0 10px 10px 0;margin-bottom:10px;border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.notice.pin{border-left-color:var(--accent)}
.notice h3{margin:0 0 3px}
.notice p{margin:0;white-space:pre-line}
.tip{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.tip:last-child{border-bottom:0}
.tip .rank{width:28px;height:28px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:700;flex-shrink:0;font-size:13px}
.filter{max-width:260px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;font-size:14px}
.kv dt{color:var(--muted)} .kv dd{margin:0;font-weight:600}
details summary{cursor:pointer;font-weight:600}

@media print{
  .side,.top .menu-btn,.no-print,.foot,.ptop,.phello,.flash{display:none!important}
  body{background:#fff} .content,.pwrap{padding:0} .card{box-shadow:none;border:0}
  .receipt{box-shadow:none;margin:0 auto}
}

/* =========================================================
   PHONE APP LAYER — installable, thumb-friendly
   ========================================================= */
html{-webkit-text-size-adjust:100%}
body{-webkit-tap-highlight-color:transparent}
.quick{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:18px}
.qa{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 6px;background:var(--panel);border:1px solid var(--line);border-radius:14px;
  text-decoration:none;color:var(--ink);font-size:13px;font-weight:600;text-align:center;box-shadow:var(--shadow)}
.qa svg{width:24px;height:24px;color:var(--brand)}
.qa:active{transform:scale(.97)}

.tabbar{display:none}
.install{position:fixed;left:12px;right:12px;bottom:calc(80px + env(safe-area-inset-bottom));z-index:40;display:flex;align-items:center;gap:10px;
  background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:10px 12px;box-shadow:0 8px 30px rgba(0,0,0,.18);max-width:480px;margin:0 auto}
.install[hidden]{display:none}
.install img{border-radius:10px;flex-shrink:0}
.install div{flex:1;min-width:0} .install b{display:block;font-size:14px} .install small{display:block;font-size:12px}
.install .x{background:none;border:0;font-size:22px;color:var(--muted);cursor:pointer;padding:0 4px}
@media (min-width:901px){.install{bottom:20px;left:auto;right:20px}}

@media (max-width:900px){
  /* Bottom tab bar like a native app */
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;background:var(--panel);border-top:1px solid var(--line);
    padding:6px 4px calc(6px + env(safe-area-inset-bottom));box-shadow:0 -4px 20px rgba(0,0,0,.06)}
  .tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 2px;color:var(--muted);text-decoration:none;font-size:11px;font-weight:600;border-radius:10px;min-height:48px;justify-content:center}
  .tabbar a svg{width:23px;height:23px}
  .tabbar a.on{color:var(--brand)}
  .tabbar a.fab{color:#fff}
  .tabbar a.fab svg{background:var(--brand);border-radius:50%;width:46px;height:46px;padding:11px;margin-top:-22px;box-shadow:0 4px 14px rgba(14,99,77,.45);stroke-width:2.4}
  .tabbar a.fab span{color:var(--brand)}
  body.app .main,body.portal{padding-bottom:calc(78px + env(safe-area-inset-bottom))}
  .foot{padding-bottom:10px}

  /* Admin header becomes a sticky app bar */
  .top{position:sticky;top:0;z-index:15;background:var(--brand);color:#fff;padding:calc(10px + env(safe-area-inset-top)) 14px 12px;margin-bottom:6px}
  .top h1{font-size:1.1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .menu-btn{border-color:rgba(255,255,255,.35);color:#fff}
  .side{padding-top:env(safe-area-inset-top)}
  .side.open::after{content:"";position:fixed;inset:0;left:260px;background:rgba(0,0,0,.35)}

  /* Portal header: compact app bar, tabs move to the bottom */
  .ptop{position:sticky;top:0;z-index:15;background:var(--brand);border:0;padding:env(safe-area-inset-top) 14px 0}
  .ptop .brand{color:#fff;padding:10px 0} .ptop .brand small{color:rgba(255,255,255,.8)}
  .ptop .logo{background:rgba(255,255,255,.15)}
  .ptabs{display:none}

  /* Thumb-sized controls; 16px text stops iPhone zooming into fields */
  input[type=text],input[type=number],input[type=email],input[type=password],input[type=date],input[type=time],input[type=tel],input[type=month],select,textarea{font-size:16px;padding:12px}
  .btn{min-height:44px;padding:10px 16px}
  .btn-s{min-height:38px;padding:7px 12px}
  .login-box .btn{min-height:50px;font-size:16px}
  .card{padding:16px;border-radius:14px}
  .stat b{font-size:1.3rem}
  .due-card .big{font-size:2.6rem}
}
@media (max-width:560px){
  .quick{grid-template-columns:repeat(4,1fr);gap:8px} .qa{padding:12px 2px;font-size:11.5px}
  .grid.g4{grid-template-columns:1fr 1fr}
  .top h1{font-size:1.05rem}
  .ractions .btn{flex:1 1 44%;justify-content:center}
  .card-h .filter{max-width:none;flex:1}

  /* Tables turn into easy-to-read cards (labels added by app.js) */
  table.t.cards thead{display:none}
  table.t.cards,table.t.cards tbody,table.t.cards tr,table.t.cards td,table.t.cards tfoot{display:block;width:100%}
  table.t.cards tr{border:1px solid var(--line);border-radius:12px;padding:6px 12px;margin-bottom:10px;background:var(--panel)}
  table.t.cards tr.me{border-color:var(--brand)}
  table.t.cards td{display:flex;justify-content:space-between;align-items:center;gap:12px;border:0;border-bottom:1px dashed var(--line);padding:8px 0;text-align:right}
  table.t.cards td:last-child{border-bottom:0}
  table.t.cards td::before{content:attr(data-label);color:var(--muted);font-size:12.5px;font-weight:600;text-align:left;flex-shrink:0}
  table.t.cards td:first-child{display:block;text-align:left;font-size:15px;padding-top:10px}
  table.t.cards td:first-child::before{display:none}
  table.t.cards td.empty{display:block;text-align:center}
  table.t.cards td.empty::before{display:none}
  table.t.cards td:not([data-label])::before,table.t.cards td[data-label=""]::before{display:none}
  table.t.cards td:not([data-label]),table.t.cards td[data-label=""]{justify-content:flex-end}
  table.t.cards tfoot tr{background:var(--brand-soft)}
  table.t.cards tfoot td:empty{display:none}
  .tbl-wrap{overflow:visible;margin:0}
}
@media (display-mode: standalone){
  .login-page{padding-top:calc(20px + env(safe-area-inset-top))}
}