:root{--bg:#f6f7fb;--card:#fff;--ink:#14192b;--mut:#5b6478;--line:#e3e6ef;--brand:#4f46e5;--brand2:#7c3aed;--ok:#0f7b4b;--okbg:#e3f6ec;--bad:#b42318;--badbg:#fde8e6;--warn:#8a5a00;--warnbg:#fff3d6;--r:14px}
@media (prefers-color-scheme:dark){:root{--bg:#0e1220;--card:#171c2e;--ink:#eef0f8;--mut:#a3abc2;--line:#272e47;--okbg:#10301f;--badbg:#3b1613;--warnbg:#3a2c0a;--ok:#5fd39a;--bad:#ff8a80;--warn:#f6c25b}}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans Bengali",sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--brand)}h1,h2,h3{line-height:1.2;margin:.2em 0 .5em}h1{font-size:clamp(1.8rem,4vw,3rem)}h2{font-size:1.4rem}
:focus-visible{outline:3px solid var(--brand2);outline-offset:2px}
.wrap{max-width:1120px;margin:0 auto;padding:0 1.1rem}
.top{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}.top .wrap{display:flex;align-items:center;gap:1rem;min-height:60px;flex-wrap:wrap}
.logo{font-weight:800;font-size:1.2rem;text-decoration:none;color:var(--ink);display:flex;align-items:center;gap:.5rem}.logo i{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:inline-block}.logo img{height:30px}
.nav{display:flex;gap:1rem;flex-wrap:wrap;margin-left:auto;align-items:center}.nav a{text-decoration:none;color:var(--mut);font-weight:600}.nav a:hover{color:var(--ink)}
.btn{display:inline-block;border:0;border-radius:11px;padding:.65rem 1.1rem;font:inherit;font-weight:700;cursor:pointer;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;text-decoration:none}.btn.alt{background:transparent;color:var(--ink);border:1px solid var(--line)}.btn.sm{padding:.35rem .7rem;font-size:.9rem}.btn.danger{background:var(--bad)}.btn[disabled]{opacity:.5;cursor:not-allowed}
.hero{padding:4.5rem 0 3rem;background:radial-gradient(900px 400px at 80% -10%,rgba(124,58,237,.18),transparent),radial-gradient(700px 400px at 0 0,rgba(79,70,229,.15),transparent)}.hero p{font-size:1.15rem;color:var(--mut);max-width:44rem}
.grid{display:grid;gap:1rem}.g3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.2rem}.card h3{margin-top:0}.price{font-size:2rem;font-weight:800}.mut{color:var(--mut)}.small{font-size:.88rem}
section.s{padding:2.5rem 0}
.badge{display:inline-block;padding:.12rem .55rem;border-radius:99px;font-size:.78rem;font-weight:700;text-transform:capitalize}.badge.ok{background:var(--okbg);color:var(--ok)}.badge.bad{background:var(--badbg);color:var(--bad)}.badge.warn{background:var(--warnbg);color:var(--warn)}
label{display:block;font-weight:600;margin:.8rem 0 .25rem}input,select,textarea{width:100%;padding:.65rem .8rem;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);font:inherit}textarea{min-height:120px}input[type=checkbox],input[type=radio]{width:auto}
.chk{display:flex;gap:.6rem;align-items:flex-start;font-weight:500}.chk input{margin-top:.35rem}
.tw{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--card)}table{width:100%;border-collapse:collapse;font-size:.94rem}th,td{padding:.6rem .8rem;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}th{color:var(--mut);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}tr:last-child td{border-bottom:0}td.w{white-space:normal}
.flash{padding:.8rem 1rem;border-radius:10px;margin:1rem 0;font-weight:600}.flash.ok{background:var(--okbg);color:var(--ok)}.flash.error{background:var(--badbg);color:var(--bad)}.flash.warn{background:var(--warnbg);color:var(--warn)}
.shell{display:grid;grid-template-columns:230px 1fr;gap:1.5rem;padding:1.5rem 0}.side{display:flex;flex-direction:column;gap:.2rem}.side a{padding:.55rem .8rem;border-radius:9px;text-decoration:none;color:var(--ink);font-weight:600}.side a:hover,.side a.on{background:var(--card);box-shadow:inset 0 0 0 1px var(--line)}
.kpi{font-size:1.7rem;font-weight:800}.notice{border-left:4px solid var(--warn);background:var(--warnbg);padding:.8rem 1rem;border-radius:8px;color:var(--ink)}
.bar{height:10px;border-radius:6px;background:var(--line);overflow:hidden}.bar b{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2))}
footer{border-top:1px solid var(--line);padding:2rem 0;margin-top:3rem;color:var(--mut)}footer a{margin-right:1rem}
.empty{text-align:center;padding:2rem;color:var(--mut)}
@media(max-width:800px){.shell{grid-template-columns:1fr}.side{flex-direction:row;overflow-x:auto;padding-bottom:.4rem}.side a{white-space:nowrap}.hero{padding:2.5rem 0 1.5rem}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}