:root{--bg:#f4f7f6;--card:#fff;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--brand:#0f766e;--brand-ink:#fff;
  --in:#16a34a;--out:#dc2626;--warn:#d97706;--shadow:0 1px 3px rgba(15,23,42,.08)}
@media (prefers-color-scheme:dark){:root{--bg:#0b1210;--card:#131c19;--ink:#e6efec;--muted:#8aa39c;--line:#22312c;--brand:#14b8a6;--brand-ink:#04211d;--shadow:none}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,-apple-system,"Noto Sans Bengali","Segoe UI",sans-serif;
  padding-bottom:calc(76px + env(safe-area-inset-bottom))}
.top{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;padding:12px 16px;
  background:var(--brand);color:var(--brand-ink)}
.top h1{margin:0;font-size:18px}.gear{text-decoration:none;font-size:20px}
main{max-width:720px;margin:0 auto;padding:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:14px;box-shadow:var(--shadow)}
.card h2{margin:0 0 10px;font-size:15px;color:var(--muted);font-weight:600}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.stat{text-align:center}.stat small{display:block;color:var(--muted);font-size:12px}.stat b{font-size:17px}
.in{color:var(--in)}.out{color:var(--out)}.muted{color:var(--muted)}.warn{color:var(--warn)}
.big{font-size:28px;font-weight:700}
.row{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 0;border-top:1px solid var(--line)}
.row:first-of-type{border-top:0}
.row .l{min-width:0}.row .l b{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.row .l small{color:var(--muted)}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px}
.bar{height:8px;background:var(--line);border-radius:6px;overflow:hidden;margin-top:4px}.bar i{display:block;height:100%;background:var(--brand)}
.bar.over i{background:var(--out)}
label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}
input,select,textarea{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);font:inherit}
input:focus,select:focus{outline:2px solid var(--brand);outline-offset:1px}
.amount{font-size:30px;font-weight:700;text-align:center;padding:14px}
.btn{display:inline-block;padding:12px 16px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;text-decoration:none;cursor:pointer}
.btn.primary{background:var(--brand);color:var(--brand-ink);border-color:var(--brand);font-weight:600}
.btn.danger{color:var(--out)}.btn.sm{padding:6px 10px;font-size:13px}.btn.block{display:block;width:100%;text-align:center;margin-top:14px}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.seg input{position:absolute;opacity:0}.seg span{display:block;text-align:center;padding:12px;border:2px solid var(--line);border-radius:10px;font-weight:600;cursor:pointer}
.seg input:checked+span.o{border-color:var(--out);background:rgba(220,38,38,.08);color:var(--out)}
.seg input:checked+span.i{border-color:var(--in);background:rgba(22,163,74,.08);color:var(--in)}
.chips{display:flex;flex-wrap:wrap;gap:8px}.chips label{margin:0}
.chips input{position:absolute;opacity:0}
.chips span{display:inline-block;padding:8px 14px;border:1px solid var(--line);border-radius:20px;color:var(--ink);font-size:14px;cursor:pointer}
.chips input:checked+span{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
.chips .hide{display:none}
.alert{padding:10px 14px;border-radius:10px;margin-bottom:14px}.alert.ok{background:rgba(22,163,74,.12);color:var(--in)}.alert.err{background:rgba(220,38,38,.12);color:var(--out)}
.bottom{position:fixed;left:0;right:0;bottom:0;display:flex;justify-content:space-around;background:var(--card);border-top:1px solid var(--line);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));z-index:10}
.bottom a{flex:1;text-align:center;text-decoration:none;color:var(--muted);font-size:11px}.bottom a span{display:block;font-size:20px}
.bottom a.on{color:var(--brand);font-weight:700}.bottom a.plus span{background:var(--brand);color:var(--brand-ink);width:44px;height:44px;line-height:44px;border-radius:50%;margin:-22px auto 2px;box-shadow:0 2px 8px rgba(0,0,0,.25)}
.monthnav{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.monthnav a{text-decoration:none;color:var(--brand);font-size:20px;padding:4px 12px}
.filters{display:grid;grid-template-columns:1fr 1fr;gap:8px}.filters .full{grid-column:1/-1}
canvas{max-height:240px}
.login{display:grid;place-items:center;min-height:100vh;padding:20px;padding-bottom:20px}
.login-card{width:100%;max-width:360px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;text-align:center}
.login-card form{text-align:left}.logo{width:56px;height:56px;margin:0 auto 8px;border-radius:50%;background:var(--brand);color:var(--brand-ink);display:grid;place-items:center;font-size:28px;font-weight:700}
details summary{cursor:pointer;color:var(--brand);margin:12px 0 0}
.inline{display:flex;gap:8px;align-items:center}.inline>*{flex:1}.inline>.btn{flex:0 0 auto}
.empty{text-align:center;color:var(--muted);padding:20px}