:root{--p:#0e7c66;--pd:#0a5c4c;--red:#d93838;--green:#178a4c;--bg:#f2f4f7;--card:#fff;--line:#e3e7ec;--text:#1b2430;--muted:#6b7684;--warn:#c27c0e}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font:15px/1.4 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
body{max-width:560px;margin:0 auto;min-height:100vh;background:var(--bg);position:relative}
a{color:var(--p)}
.muted{color:var(--muted)}.small{font-size:12px}.center{text-align:center}.r{text-align:right}
.red{color:var(--red)}.green{color:var(--green)}.warn{color:var(--warn)}
.hidden{display:none!important}

/* top bar */
.top{position:sticky;top:0;z-index:5;background:var(--p);color:#fff;padding:12px 14px;display:flex;align-items:center;gap:10px}
.top h1{font-size:18px;margin:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top .sub{font-size:12px;opacity:.85}
.top button{background:none;border:0;color:#fff;font-size:22px;padding:2px 6px;cursor:pointer}
.offline-bar{background:#fff3cd;color:#7a5b00;text-align:center;font-size:13px;padding:6px}

/* bottom nav */
.nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:560px;background:#fff;border-top:1px solid var(--line);display:flex;z-index:6}
.nav a{flex:1;text-align:center;padding:8px 0 10px;color:var(--muted);text-decoration:none;font-size:12px}
.nav a i{display:block;font-style:normal;font-size:20px}
.nav a.on{color:var(--p);font-weight:600}
main{padding-bottom:84px}

/* cards & lists */
.card{background:var(--card);margin:10px;border-radius:14px;padding:14px;box-shadow:0 1px 2px rgba(0,0,0,.05)}
.summary{display:flex;gap:0;padding:0;overflow:hidden}
.summary>div{flex:1;padding:14px}
.summary>div+div{border-left:1px solid var(--line)}
.summary .amt{font-size:20px;font-weight:700}
.tabs{display:flex;background:var(--p);padding:0 10px}
.tabs a{flex:1;text-align:center;color:#cfe9e2;padding:10px 0;text-decoration:none;font-weight:600;border-bottom:3px solid transparent}
.tabs a.on{color:#fff;border-color:#fff}
.search{margin:10px;display:flex;gap:8px}
.search input{flex:1}
.list{background:#fff;margin:0 10px;border-radius:14px;overflow:hidden}
.li{display:flex;align-items:center;gap:12px;padding:12px 14px;border-bottom:1px solid var(--line);cursor:pointer;text-decoration:none;color:inherit}
.li:last-child{border-bottom:0}
.li .grow{flex:1;min-width:0}
.li .name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.li .amt{font-weight:700;text-align:right}
.li .tag{font-size:11px}
.avatar{width:40px;height:40px;border-radius:50%;background:#d8efe9;color:var(--pd);display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.avatar.big{width:64px;height:64px;font-size:26px;margin:0 auto 8px}
.empty{text-align:center;color:var(--muted);padding:40px 20px}
.badge{display:inline-block;background:#fdecec;color:var(--red);border-radius:20px;padding:1px 8px;font-size:11px;font-weight:600}
.badge.g{background:#e6f5ec;color:var(--green)}.badge.y{background:#fff3db;color:var(--warn)}

/* ledger detail */
.balbar{background:#fff;padding:14px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}
.balbar .amt{font-size:22px;font-weight:700}
.actions{display:flex;gap:6px;padding:10px;background:#fff;overflow-x:auto}
.actions button,.actions a{flex:1;min-width:72px;background:#eef6f3;border:0;border-radius:10px;padding:8px 4px;color:var(--pd);font-size:12px;text-align:center;text-decoration:none;cursor:pointer}
.actions i{display:block;font-style:normal;font-size:18px}
.entries{padding:10px 10px 140px}
.dayhead{text-align:center;margin:12px 0 6px}
.dayhead span{background:#dde3ea;border-radius:12px;padding:2px 10px;font-size:12px;color:#4a5562}
.entry{display:flex;margin:6px 0}
.entry .bub{background:#fff;border-radius:12px;padding:8px 12px;max-width:75%;box-shadow:0 1px 1px rgba(0,0,0,.05);cursor:pointer}
.entry.credit{justify-content:flex-start}.entry.payment{justify-content:flex-end}
.entry.credit .bub{border-left:4px solid var(--red)}.entry.payment .bub{border-right:4px solid var(--green)}
.entry .bub .amt{font-weight:700;font-size:17px}
.entry .bub .meta{font-size:11px;color:var(--muted)}
.dock{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:560px;display:flex;gap:10px;padding:10px;background:#fff;border-top:1px solid var(--line);z-index:7}
.dock button{flex:1;padding:14px;border:0;border-radius:12px;color:#fff;font-weight:700;font-size:15px;cursor:pointer}
.dock .gave{background:var(--red)}.dock .got{background:var(--green)}

/* forms */
input,select,textarea{width:100%;padding:11px 12px;border:1px solid #cdd5df;border-radius:10px;font:inherit;background:#fff;color:inherit}
textarea{min-height:80px}
label{display:block;font-size:12px;color:var(--muted);margin:10px 0 4px}
.row{display:flex;gap:8px}.row>*{flex:1}
.btn{display:inline-block;padding:11px 16px;border-radius:10px;border:1px solid var(--p);background:#fff;color:var(--p);font-weight:600;cursor:pointer;text-align:center;text-decoration:none;font-size:15px}
.btn.primary{background:var(--p);color:#fff}
.btn.danger{border-color:var(--red);color:var(--red)}
.btn.block{display:block;width:100%;margin:8px 0}
.btn.sm{padding:6px 10px;font-size:13px}
.seg{display:flex;border:1px solid var(--p);border-radius:10px;overflow:hidden}
.seg button{flex:1;padding:9px;border:0;background:#fff;color:var(--p);font-weight:600;cursor:pointer}
.seg button.on{background:var(--p);color:#fff}
.fab{position:fixed;bottom:76px;right:max(16px,calc(50% - 264px));background:var(--p);color:#fff;border:0;border-radius:28px;padding:14px 20px;font-weight:700;box-shadow:0 4px 12px rgba(0,0,0,.2);z-index:5;cursor:pointer}

/* sheet / modal */
.sheet-bg{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:20;display:flex;align-items:flex-end;justify-content:center}
.sheet{background:#fff;width:100%;max-width:560px;border-radius:18px 18px 0 0;padding:16px;max-height:92vh;overflow:auto}
.sheet h3{margin:0 0 6px}
.bigamt{font-size:28px;font-weight:700;text-align:center;border:0;border-bottom:2px solid var(--p);border-radius:0}

/* bills */
.bill-line{border:1px solid var(--line);border-radius:10px;padding:8px;margin:6px 0}
.bill-line .row input{padding:8px}
.totals div{display:flex;justify-content:space-between;padding:3px 0}
.totals .grand{font-size:18px;font-weight:700;border-top:1px solid var(--line);padding-top:6px}
.invoice{background:#fff;margin:10px;padding:18px;border-radius:6px;font-size:13px}
.invoice h2{margin:0;font-size:20px}
.invoice table{width:100%;border-collapse:collapse;margin:12px 0}
.invoice th,.invoice td{border-bottom:1px solid var(--line);padding:6px 4px;text-align:left}
.invoice th{background:#f5f7f9;font-size:12px}
.invoice .hdr{display:flex;justify-content:space-between;gap:12px;border-bottom:2px solid var(--p);padding-bottom:10px}
.qrbox{text-align:center;margin:12px 0}
.qrbox svg{width:180px;height:180px}

/* statement / share */
.stmt{width:100%;border-collapse:collapse;font-size:13px;margin:12px 0}
.stmt th,.stmt td{padding:7px 5px;border-bottom:1px solid var(--line);text-align:left}
.stmt th{background:#f5f7f9;font-size:12px}
body.share{padding:12px}
.share-card{background:#fff;border-radius:16px;padding:18px}
.share-head{text-align:center}.share-head h2{margin:4px 0}
.share-bal{text-align:center;margin:16px 0;padding:14px;border-radius:12px;background:#f7f9fb}
.share-bal .amt{font-size:32px;font-weight:800}
.share-bal.red .amt{color:var(--red)}.share-bal.green .amt{color:var(--green)}

.login{padding:40px 20px}
.login .logo{width:72px;height:72px;border-radius:18px;background:var(--p);color:#fff;display:flex;align-items:center;justify-content:center;font-size:36px;margin:0 auto 10px}
.toast{position:fixed;bottom:90px;left:50%;transform:translateX(-50%);background:#1b2430;color:#fff;padding:10px 16px;border-radius:20px;z-index:50;font-size:14px;max-width:90%}

@media print{
  .top,.nav,.dock,.actions,.noprint,.fab,.offline-bar{display:none!important}
  body,html{background:#fff;max-width:none}
  .invoice,.card{box-shadow:none;margin:0;border-radius:0}
  main{padding:0}
}

/* v2 additions */
.chips{display:flex;gap:6px;flex-wrap:wrap;padding:0 10px 8px}
.chips button{border:1px solid #cdd5df;background:#fff;border-radius:18px;padding:6px 12px;font-size:13px;cursor:pointer;color:var(--text)}
.chips button.on{background:var(--p);border-color:var(--p);color:#fff}
.sheet .chips{padding:0}
.tabs a{font-size:13px}
.entry.deleted .bub{opacity:.55;border-color:#aaa!important}
.entry.deleted .bub .amt{text-decoration:line-through;color:#888!important}
.bub .ph img{max-width:140px;max-height:100px;border-radius:8px;margin-top:6px;display:block}
.calcbar{display:flex;gap:6px;margin:6px 0}
.calcbar button{flex:1;padding:8px 0;border:1px solid #cdd5df;background:#f7f9fb;border-radius:8px;font-size:18px;cursor:pointer}
.calc-res{min-height:16px}
label.check{display:flex;gap:8px;align-items:center;color:var(--text);font-size:14px;margin:12px 0 4px}
label.check input{width:auto}
.card h4{margin:0 0 4px}
code{background:#f2f4f7;padding:2px 4px;border-radius:4px;word-break:break-all;font-size:12px}
.pin-dots{display:flex;gap:14px;justify-content:center;margin:18px 0}
.pin-dots span{width:16px;height:16px;border-radius:50%;border:2px solid var(--p)}
.pin-dots span.on{background:var(--p)}
.pinpad{display:grid;grid-template-columns:repeat(3,80px);gap:12px;justify-content:center;margin:10px 0 20px}
.pinpad button{height:64px;border-radius:50%;border:0;background:#fff;font-size:24px;box-shadow:0 1px 3px rgba(0,0,0,.1);cursor:pointer}
.pinpad button:disabled{visibility:hidden}
.top h1 span{cursor:pointer}

/* v3: OkCredit-parity additions */
.summary{position:relative}
.eye{position:absolute;top:6px;right:8px;border:0;background:none;font-size:16px;cursor:pointer;opacity:.7}
.bell{position:relative}
.bell b{position:absolute;top:-2px;right:-2px;background:#ff5252;color:#fff;border-radius:10px;font-size:10px;padding:1px 5px;font-style:normal}
.chips.scroll{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.chips.scroll::-webkit-scrollbar{display:none}
.chips button,.chips a.chip{white-space:nowrap}
.chips a.chip{border:1px solid #cdd5df;background:var(--card);border-radius:18px;padding:6px 12px;font-size:13px;color:var(--text);text-decoration:none}
.chips a.chip.on{background:var(--p);border-color:var(--p);color:#fff}
.entry.discount{justify-content:flex-end}
.entry.discount .bub{border-right:4px solid var(--warn)}
.grid-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px}
.grid-actions button,.grid-actions a{border:0;background:#eef6f3;border-radius:12px;padding:12px 4px;color:var(--pd);font-size:12px;text-align:center;text-decoration:none;cursor:pointer}
.grid-actions i{display:block;font-style:normal;font-size:22px;margin-bottom:4px}
.grid-actions .red{background:#fdecec;color:var(--red)}
.stat-row{display:flex;flex-wrap:wrap;gap:12px}
.stat-row>div{flex:1 1 30%}
.li.unread{background:#eef6f3}
details summary{cursor:pointer}

/* dark theme */
html[data-theme=dark]{--bg:#0f1714;--card:#18221e;--line:#26332d;--text:#e6ece9;--muted:#93a39b;--pd:#7fd6c0}
html[data-theme=dark] body,html[data-theme=dark] html{background:var(--bg)}
html[data-theme=dark] .top,html[data-theme=dark] .tabs{background:#0b2b25}
html[data-theme=dark] .list,html[data-theme=dark] .card,html[data-theme=dark] .nav,html[data-theme=dark] .dock,html[data-theme=dark] .balbar,
html[data-theme=dark] .actions,html[data-theme=dark] .sheet,html[data-theme=dark] .entry .bub,html[data-theme=dark] .share-card,html[data-theme=dark] .pinpad button{background:var(--card);color:var(--text)}
html[data-theme=dark] input,html[data-theme=dark] select,html[data-theme=dark] textarea,html[data-theme=dark] .chips button,html[data-theme=dark] .btn:not(.primary){background:#111a17;color:var(--text);border-color:#33433c}
html[data-theme=dark] .actions button,html[data-theme=dark] .actions a,html[data-theme=dark] .grid-actions button,html[data-theme=dark] .grid-actions a,html[data-theme=dark] .avatar{background:#1f3a32;color:#bfeee0}
html[data-theme=dark] .dayhead span{background:#26332d;color:var(--muted)}
html[data-theme=dark] .invoice{background:#fff;color:#1b2430}
html[data-theme=dark] .li.unread{background:#1f3a32}
html[data-theme=dark] .calcbar button{background:#111a17;color:var(--text);border-color:#33433c}
html[data-theme=dark] .totals.card{background:#111a17!important}