:root{--bg:#F2F5FB;--card:#fff;--ink:#0F1E3D;--muted:#5B6B8C;--line:#E3E9F5;--primary:#0A4FB3;--primary-ink:#fff;--chip:#EEF3FC;--shadow:0 6px 24px rgba(10,50,120,.07);
--side:linear-gradient(180deg,#0A2A66 0%,#0A4FB3 100%);--sidefg:#DCE7FB;--sidesub:#A9C2F0;--sideact:rgba(255,255,255,.16);
--ok:#0E7A4F;--okbg:#E3F6EC;--warn:#8A5200;--warnbg:#FFF4DC;--bad:#B3261E;--badbg:#FDE8E6;--input:#fff;--offsw:#B8C3D9}
html[data-theme=night]{--bg:#0A1226;--card:#111C38;--ink:#E8EEFC;--muted:#95A5C7;--line:#1E2D52;--primary:#4D8DFF;--primary-ink:#06142e;--chip:#1A2A4F;--shadow:none;
--side:linear-gradient(180deg,#07122B 0%,#0B2F73 100%);--ok:#4ADE9A;--okbg:#0F3326;--warn:#F5B84C;--warnbg:#3A2C0D;--bad:#FF8A80;--badbg:#3C1714;--input:#0D1731;--offsw:#33436B}
*{box-sizing:border-box}body{margin:0;font-family:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI','Noto Sans Bengali',sans-serif;background:var(--bg);color:var(--ink);font-size:14px}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
.app{display:flex;min-height:100vh}
.side{flex:0 0 250px;background:var(--side);color:var(--sidefg);padding:22px 14px;display:flex;flex-direction:column;gap:20px;position:sticky;top:0;height:100vh;overflow:auto}
.brand{display:flex;align-items:center;gap:12px;padding:0 6px}.brand .logo{width:40px;height:40px;border-radius:11px;background:#fff;color:#0A4FB3;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px}
.brand b{display:block;color:#fff;font-size:16px}.brand small{color:var(--sidesub);font-size:12px}
.nav a{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:11px;font-weight:600;font-size:14px;color:var(--sidefg);margin-bottom:2px}.nav a:hover{background:rgba(255,255,255,.08);text-decoration:none}
.nav a.on{background:var(--sideact);color:#fff}.nav i{width:8px;height:8px;border-radius:99px;background:#6C94DB;flex:none}.nav a.on i{background:#fff}
.nav .grp{font-size:11px;letter-spacing:.8px;text-transform:uppercase;color:var(--sidesub);padding:12px 12px 4px}
.main{flex:1;min-width:0;padding:22px 30px 40px}
.top{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;margin-bottom:18px}
.top h1{margin:0;font-size:26px;font-weight:800;letter-spacing:-.3px}.top .sub{color:var(--muted);font-size:13px;margin-top:3px}
.tools{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:18px}
.card h2{margin:0 0 12px;font-size:16px;font-weight:800}
.grid{display:grid;gap:14px}.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.g3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.stats{grid-template-columns:repeat(auto-fit,minmax(165px,1fr))}
.stat{padding:15px 17px}.stat span{font-size:12px;font-weight:700;color:var(--muted);display:block}.stat b{font-size:25px;letter-spacing:-.5px;display:block;margin-top:6px}
.hero{border-radius:20px;padding:22px 26px;background:linear-gradient(120deg,#0A2A66,#0A4FB3 60%,#2C7BE5);color:#fff;display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px;align-items:center;margin-bottom:14px}
.hero small{color:#BBD3F8;font-size:12px;font-weight:700}.hero big{display:block;font-size:36px;font-weight:800;letter-spacing:-1px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:40px;padding:0 16px;border-radius:12px;border:1px solid var(--line);background:var(--card);color:var(--ink);font-weight:700;font-size:13px;cursor:pointer;font-family:inherit}
.btn:hover{text-decoration:none;filter:brightness(.97)}.btn.p{background:var(--primary);border-color:var(--primary);color:var(--primary-ink)}.btn.d{background:var(--badbg);border-color:var(--badbg);color:var(--bad)}.btn.w{background:var(--warnbg);border-color:var(--warnbg);color:var(--warn)}.btn.s{height:32px;padding:0 11px;border-radius:9px;font-size:12px}
input,select,textarea{font-family:inherit;font-size:14px;color:var(--ink);background:var(--input);border:1px solid var(--line);border-radius:11px;padding:0 12px;height:40px;width:100%}
textarea{height:auto;padding:10px 12px;min-height:70px}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:-1px}
label.f{display:flex;flex-direction:column;gap:5px;font-size:12px;font-weight:700;color:var(--muted)}label.f input,label.f select,label.f textarea{font-weight:500}
.form{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}.form .full{grid-column:1/-1}
.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end}.filters label.f{flex:1 1 150px}
table{width:100%;border-collapse:collapse}.tw{overflow-x:auto}
th{font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);text-align:left;padding:11px 9px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:10px 9px;border-bottom:1px solid var(--line);vertical-align:middle}tr:hover td{background:var(--chip)}td.r,th.r{text-align:right}
.chip{display:inline-block;padding:3px 10px;border-radius:99px;font-size:12px;font-weight:800;background:var(--chip);color:var(--ink);white-space:nowrap}
.chip.ok{background:var(--okbg);color:var(--ok)}.chip.bad{background:var(--badbg);color:var(--bad)}.chip.warn{background:var(--warnbg);color:var(--warn)}.chip.mut{color:var(--muted)}
.ok{color:var(--ok)}.bad{color:var(--bad)}.warn{color:var(--warn)}.mut{color:var(--muted)}
.flash{padding:11px 14px;border-radius:12px;margin-bottom:12px;font-weight:600}.flash.ok{background:var(--okbg);color:var(--ok)}.flash.err{background:var(--badbg);color:var(--bad)}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.tabs a{padding:8px 16px;border-radius:99px;border:1px solid var(--line);background:var(--card);font-weight:700;color:var(--muted)}.tabs a.on{background:var(--primary);border-color:var(--primary);color:var(--primary-ink);text-decoration:none}
.pager{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin-top:12px;color:var(--muted)}.pager a,.pager span.cur{padding:5px 11px;border-radius:9px;border:1px solid var(--line);background:var(--card)}.pager span.cur{background:var(--primary);color:var(--primary-ink);border-color:var(--primary)}
.kv{display:grid;grid-template-columns:150px 1fr;gap:8px 14px}.kv dt{color:var(--muted);font-weight:700;font-size:12px}.kv dd{margin:0;word-break:break-word}
.tog{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:99px;border:1px solid var(--line);background:var(--card);cursor:pointer;font-weight:700;font-size:13px;color:var(--ink);font-family:inherit}
.tog .d{width:36px;height:20px;border-radius:99px;background:var(--line);position:relative}.tog .d:after{content:"";position:absolute;top:3px;left:3px;width:14px;height:14px;border-radius:99px;background:var(--primary);transition:left .2s}
html[data-theme=night] .tog .d:after{left:19px}.tog .n{display:none}html[data-theme=night] .tog .n{display:inline}html[data-theme=night] .tog .dy{display:none}
.menu-btn{display:none}
@media(max-width:900px){.side{position:fixed;left:-270px;z-index:50;width:250px;transition:left .2s;height:100vh}.side.open{left:0}.menu-btn{display:inline-flex}.main{padding:16px}.kv{grid-template-columns:110px 1fr}}
@media print{.side,.tools,.noprint{display:none!important}.main{padding:0}body{background:#fff;color:#000}.card{box-shadow:none;border:0}}
.login{max-width:380px;margin:9vh auto;padding:0 16px}.login .card{padding:28px}
.receipt{max-width:620px;margin:0 auto}.receipt h1{margin:0}.receipt table td,.receipt table th{border:0;padding:5px 0}
.sw{display:inline-block;width:34px;height:20px;border-radius:99px;position:relative;vertical-align:middle}.sw:after{content:"";position:absolute;top:3px;width:14px;height:14px;border-radius:99px;background:#fff}.sw.on{background:var(--ok)}.sw.on:after{left:17px}.sw.off{background:var(--offsw)}.sw.off:after{left:3px}
.code{font-family:ui-monospace,Consolas,monospace;font-size:12px;background:var(--chip);padding:2px 6px;border-radius:6px}