/* হিসাব — Daily Expense & Finance Tracker. Mobile-first PWA. */
:root{
  --bg:#f4f6f8; --surface:#ffffff; --surface-2:#f8fafc; --line:#e6eaf0;
  --text:#0f172a; --muted:#64748b; --faint:#94a3b8;
  --primary:#0f766e; --primary-700:#0b5d57; --primary-50:#e6f4f1;
  --in:#16a34a; --in-bg:#e9f8ef; --out:#dc2626; --out-bg:#fdeced;
  --invest:#2563eb; --lend:#d97706; --borrow:#7c3aed; --transfer:#0ea5e9;
  --warn:#d97706; --shadow:0 1px 2px rgba(16,24,40,.06),0 4px 16px rgba(16,24,40,.06);
  --shadow-lg:0 8px 30px rgba(16,24,40,.14);
  --radius:16px; --radius-sm:11px; --maxw:560px;
  --safe-b:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0b1220; --surface:#121a2b; --surface-2:#0f1626; --line:#243049;
    --text:#e7ecf5; --muted:#9aa6bd; --faint:#6b7790;
    --primary:#2dd4bf; --primary-700:#14b8a6; --primary-50:#10241f;
    --in:#34d399; --in-bg:#0e2a1d; --out:#f87171; --out-bg:#2c1518;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 6px 20px rgba(0,0,0,.35);
    --shadow-lg:0 10px 34px rgba(0,0,0,.5);
  }
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:"Hind Siliguri","Noto Sans Bengali",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,system-ui,sans-serif;
  background:var(--bg); color:var(--text); font-size:15px; line-height:1.5;
  -webkit-font-smoothing:antialiased; padding-bottom:calc(78px + var(--safe-b));
  overscroll-behavior-y:none;
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:1rem;color:inherit}
.bn-hide{display:none}
[lang="bn"] .en-only{display:none}

/* ---------- app bar ---------- */
.appbar{
  position:sticky; top:0; z-index:40; background:linear-gradient(135deg,var(--primary),var(--primary-700));
  color:#fff; padding:calc(env(safe-area-inset-top,0px) + 12px) 14px 12px;
  box-shadow:0 2px 14px rgba(15,118,110,.28);
}
.appbar-row{display:flex;align-items:center;gap:10px;max-width:var(--maxw);margin:0 auto}
.appbar .title{font-weight:700;font-size:1.18rem;display:flex;align-items:center;gap:8px;flex:1;min-width:0}
.appbar .title .logo{font-size:1.3rem}
.appbar .title small{font-weight:500;opacity:.8;font-size:.72rem;display:block;line-height:1}
.appbar .acts{display:flex;align-items:center;gap:7px}
.iconbtn{
  width:38px;height:38px;border:none;border-radius:50%;background:rgba(255,255,255,.16);
  color:#fff;display:grid;place-items:center;cursor:pointer;font-size:1.05rem;transition:.15s;
}
.iconbtn:active{transform:scale(.92)}
.iconbtn.sm{width:32px;height:32px;font-size:.78rem;font-weight:700}
.month-nav{display:flex;align-items:center;justify-content:center;gap:6px;max-width:var(--maxw);margin:10px auto 0}
.month-nav a{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.16);display:grid;place-items:center;font-size:1.1rem}
.month-nav .ml{font-weight:700;font-size:1.02rem;min-width:148px;text-align:center}
.month-nav a:active{transform:scale(.9)}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:14px 14px 6px}
.section-title{font-size:.82rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin:18px 4px 9px;display:flex;align-items:center;justify-content:space-between}
.section-title a{color:var(--primary);font-size:.8rem;font-weight:600;text-transform:none;letter-spacing:0}
.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:15px;margin-bottom:12px}
.card.tight{padding:0;overflow:hidden}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:9px}

/* ---------- hero balance ---------- */
.hero{background:linear-gradient(135deg,var(--primary),var(--primary-700));color:#fff;border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-40px;top:-40px;width:150px;height:150px;background:rgba(255,255,255,.08);border-radius:50%}
.hero .lbl{opacity:.85;font-size:.82rem;font-weight:500}
.hero .amt{font-size:2.05rem;font-weight:800;letter-spacing:-.5px;margin-top:3px}
.hero .sub{display:flex;gap:18px;margin-top:14px;position:relative;z-index:1}
.hero .sub div{flex:1}
.hero .sub .k{opacity:.82;font-size:.72rem}
.hero .sub .v{font-weight:700;font-size:1.02rem;margin-top:1px}

/* stat tiles */
.stat{background:var(--surface);border-radius:var(--radius-sm);box-shadow:var(--shadow);padding:13px}
.stat .k{font-size:.74rem;color:var(--muted);display:flex;align-items:center;gap:5px}
.stat .v{font-size:1.18rem;font-weight:800;margin-top:4px;letter-spacing:-.3px}

/* amount colors */
.pos{color:var(--in)} .neg{color:var(--out)} .amt-zero{color:var(--muted)}

/* ---------- list rows ---------- */
.list{list-style:none}
.row{display:flex;align-items:center;gap:12px;padding:12px 15px;border-bottom:1px solid var(--line);background:var(--surface)}
.row:last-child{border-bottom:none}
.row .ic{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-size:1.2rem;background:var(--surface-2);flex:none}
.row .meta{flex:1;min-width:0}
.row .meta .t{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row .meta .s{font-size:.78rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row .val{text-align:right;font-weight:700;white-space:nowrap}
.row .val small{display:block;font-size:.7rem;color:var(--faint);font-weight:500}
.row.tap:active{background:var(--surface-2)}
.empty{text-align:center;color:var(--muted);padding:34px 16px}
.empty .e-ic{font-size:2.4rem;opacity:.5}
.empty p{margin-top:8px}

/* badges / chips */
.badge{font-size:.68rem;font-weight:700;padding:2px 8px;border-radius:999px;background:var(--surface-2);color:var(--muted)}
.badge.in{background:var(--in-bg);color:var(--in)} .badge.out{background:var(--out-bg);color:var(--out)}
.chips{display:flex;gap:8px;overflow-x:auto;padding:2px 0 6px;-webkit-overflow-scrolling:touch}
.chip{white-space:nowrap;padding:7px 14px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:.85rem;font-weight:600;color:var(--muted);cursor:pointer}
.chip.on{background:var(--primary);color:#fff;border-color:var(--primary)}

/* progress (budget) */
.bar{height:7px;border-radius:99px;background:var(--line);overflow:hidden;margin-top:7px}
.bar > i{display:block;height:100%;border-radius:99px;background:var(--primary)}
.bar.over > i{background:var(--out)}

/* ---------- buttons / forms ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:13px 18px;border-radius:13px;border:none;background:var(--primary);color:#fff;font-weight:700;cursor:pointer;width:100%;transition:.15s;font-size:1rem}
.btn:active{transform:translateY(1px)}
.btn.sec{background:var(--surface);color:var(--text);border:1px solid var(--line)}
.btn.danger{background:var(--out)}
.btn.ghost{background:transparent;color:var(--primary);border:1px solid var(--primary)}
.btn:disabled{opacity:.5}
.field{margin-bottom:14px}
.field label{display:block;font-size:.82rem;font-weight:600;color:var(--muted);margin-bottom:6px}
.input,select.input,textarea.input{
  width:100%;padding:12px 13px;border:1.4px solid var(--line);border-radius:12px;background:var(--surface);outline:none;transition:.15s
}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-50)}
textarea.input{resize:vertical;min-height:60px}
.amount-input{font-size:1.8rem;font-weight:800;text-align:center;letter-spacing:-.5px}
.help{font-size:.76rem;color:var(--faint);margin-top:5px}
.inline2{display:grid;grid-template-columns:1fr 1fr;gap:11px}

/* segmented type picker */
.types{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.types .ty{border:1.4px solid var(--line);border-radius:13px;background:var(--surface);padding:11px 6px;text-align:center;cursor:pointer;transition:.12s}
.types .ty .ti{font-size:1.4rem}
.types .ty .tl{font-size:.74rem;font-weight:600;margin-top:3px;color:var(--muted)}
.types .ty.on{border-color:var(--primary);background:var(--primary-50)}
.types .ty.on .tl{color:var(--primary)}

/* category/account pick grid */
.pickgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}
.pickgrid .pk{border:1.4px solid var(--line);border-radius:13px;background:var(--surface);padding:10px 4px;text-align:center;cursor:pointer}
.pickgrid .pk .pi{font-size:1.4rem}
.pickgrid .pk .pn{font-size:.68rem;margin-top:3px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pickgrid .pk.on{border-color:var(--primary);background:var(--primary-50)}
.pickgrid .pk.on .pn{color:var(--primary);font-weight:600}

/* ---------- tab bar + fab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:45;
  background:var(--surface);border-top:1px solid var(--line);
  display:flex;justify-content:space-around;align-items:center;
  padding:7px 6px calc(7px + var(--safe-b));box-shadow:0 -2px 16px rgba(16,24,40,.06)
}
.tabbar .tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--faint);font-size:.66rem;font-weight:600;padding:3px 0}
.tabbar .tab .ti{font-size:1.32rem;line-height:1}
.tabbar .tab.on{color:var(--primary)}
.fab{
  width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-700));
  color:#fff;font-size:1.9rem;display:grid;place-items:center;margin-top:-26px;
  box-shadow:0 6px 18px rgba(15,118,110,.45);border:4px solid var(--bg);flex:none
}
.fab:active{transform:scale(.93)}

/* ---------- bottom sheet ---------- */
.sheet-bd{position:fixed;inset:0;background:rgba(2,6,23,.5);z-index:60;opacity:0;pointer-events:none;transition:.2s}
.sheet-bd.open{opacity:1;pointer-events:auto}
.sheet{position:fixed;left:0;right:0;bottom:0;z-index:61;background:var(--surface);border-radius:22px 22px 0 0;
  padding:8px 16px calc(20px + var(--safe-b));transform:translateY(102%);transition:transform .25s cubic-bezier(.2,.8,.2,1);max-width:var(--maxw);margin:0 auto;box-shadow:var(--shadow-lg)}
.sheet.open{transform:translateY(0)}
.sheet .grab{width:40px;height:4px;border-radius:99px;background:var(--line);margin:6px auto 12px}
.sheet h3{font-size:1rem;margin-bottom:6px}
.menu a{display:flex;align-items:center;gap:14px;padding:14px 6px;border-bottom:1px solid var(--line);font-weight:600}
.menu a:last-child{border-bottom:none}
.menu a .mi{font-size:1.3rem;width:26px;text-align:center}
.menu a .ma{margin-left:auto;color:var(--faint)}

/* ---------- tables (reports) ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:.86rem}
.tbl th,.tbl td{padding:9px 8px;text-align:right;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl th:first-child,.tbl td:first-child{text-align:left}
.tbl thead th{color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.03em;font-weight:700}
.tbl tfoot td{font-weight:800;border-top:2px solid var(--line);border-bottom:none}
.tbl .mini-bar{height:5px;border-radius:9px;background:var(--line);overflow:hidden;margin-top:4px}
.tbl .mini-bar > i{display:block;height:100%}

/* ---------- charts (svg/css) ---------- */
.donut-wrap{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:center}
.donut{flex:none}
.legend{flex:1;min-width:150px;list-style:none}
.legend li{display:flex;align-items:center;gap:8px;font-size:.82rem;padding:3px 0}
.legend .dot{width:10px;height:10px;border-radius:3px;flex:none}
.legend .lname{flex:1;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.legend .lval{font-weight:700}
.bars{display:flex;align-items:flex-end;gap:8px;height:130px;padding-top:8px}
.bars .b{flex:1;display:flex;flex-direction:column;align-items:center;gap:5px;height:100%;justify-content:flex-end}
.bars .b .bar2{width:100%;max-width:38px;border-radius:7px 7px 0 0;background:var(--primary);min-height:3px}
.bars .b .bl{font-size:.68rem;color:var(--muted)}

/* ---------- calendar ---------- */
.cal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.cal-head .ml{font-weight:700;font-size:1.05rem}
.cal-head a{width:36px;height:36px;border-radius:50%;background:var(--surface-2);display:grid;place-items:center;font-size:1.2rem}
.cal{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.cal .dow{text-align:center;font-size:.68rem;color:var(--muted);font-weight:700;padding:4px 0}
.cal .d{aspect-ratio:1/1.05;border-radius:11px;background:var(--surface-2);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;cursor:pointer;border:1.5px solid transparent;position:relative;overflow:hidden}
.cal .d.blank{background:transparent;cursor:default}
.cal .d .dn{font-size:.82rem;font-weight:600}
.cal .d .da{font-size:.56rem;font-weight:700;line-height:1.1}
.cal .d.today{border-color:var(--primary)}
.cal .d.sel{background:var(--primary);color:#fff}
.cal .d.sel .da{color:#fff!important}
.cal .d .dots{display:flex;gap:2px;position:absolute;bottom:4px}
.cal .d .dots i{width:5px;height:5px;border-radius:50%}
.daysum{display:flex;gap:10px;margin:12px 0}
.daysum .ds{flex:1;background:var(--surface);border-radius:12px;box-shadow:var(--shadow);padding:11px;text-align:center}
.daysum .ds .k{font-size:.7rem;color:var(--muted)}
.daysum .ds .v{font-weight:800;font-size:1.05rem;margin-top:2px}

/* misc */
.flash{padding:11px 14px;border-radius:12px;margin-bottom:12px;font-weight:600;font-size:.9rem}
.flash.ok{background:var(--in-bg);color:var(--in)}
.flash.err{background:var(--out-bg);color:var(--out)}
.fw{display:flex;align-items:center;gap:8px}
.spacer{height:6px}
.muted{color:var(--muted)} .small{font-size:.8rem} .tc{text-align:center} .tr{text-align:right}
.mb0{margin-bottom:0} .mt12{margin-top:12px}
.delbtn{background:none;border:none;color:var(--out);font-size:.85rem;cursor:pointer;padding:6px}
.linkbtn{background:none;border:none;color:var(--primary);font-weight:600;cursor:pointer;font-size:.9rem}