:root{--brand:#15803d;--bg:#f4f6f5;--card:#fff;--text:#1f2937;--muted:#6b7280;--line:#e5e7eb;--red:#dc2626;--amber:#d97706;--blue:#2563eb}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:'Hind Siliguri',system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:16px;line-height:1.5}
a{color:var(--brand)}
.topbar{position:fixed;top:0;left:0;right:0;height:56px;background:var(--brand);color:#fff;display:flex;align-items:center;gap:10px;padding:0 14px;z-index:30}
.topbar .brand{display:flex;align-items:center;gap:8px;color:#fff;text-decoration:none;font-weight:600;min-width:0}
.topbar .brand img{width:38px;height:38px;border-radius:50%;background:#fff;object-fit:contain}
.topbar .brand span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .who{margin-left:auto;font-size:14px;white-space:nowrap}.topbar .who a{color:#fff}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:24px;cursor:pointer}
.sidebar{position:fixed;top:56px;left:0;bottom:0;width:220px;background:#fff;border-right:1px solid var(--line);overflow-y:auto;padding:8px 0;z-index:20}
.sidebar a{display:flex;gap:10px;align-items:center;padding:9px 18px;color:var(--text);text-decoration:none;font-size:15px}
.sidebar a span{width:22px;text-align:center}
.sidebar a:hover{background:#f0fdf4}.sidebar a.active{background:var(--brand);color:#fff}
.sidebar .trial{margin:12px;padding:8px;background:#fef3c7;border-radius:8px;font-size:14px;text-align:center}
.nav-backdrop{display:none}
.content{margin:56px 0 0 220px;padding:20px;min-height:calc(100vh - 100px)}
.foot{margin-left:220px;padding:10px 20px;color:var(--muted);font-size:13px}
.page-title{margin:0 0 16px;font-size:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:16px}
.card h3{margin:0 0 12px;font-size:18px}
.grid{display:grid;gap:12px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;border-left:5px solid var(--brand)}
.stat .n{font-size:26px;font-weight:700}.stat .l{color:var(--muted);font-size:14px}
label{display:block;font-size:14px;color:var(--muted);margin-bottom:3px}
input,select,textarea{width:100%;padding:9px 10px;border:1px solid #cbd5e1;border-radius:8px;font:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);border-color:transparent}
input[type=checkbox],input[type=radio]{width:auto}
.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:8px;padding:9px 16px;font:inherit;font-weight:500;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{filter:brightness(.92)}
.btn.sm{padding:4px 10px;font-size:14px}.btn.gray{background:#64748b}.btn.red{background:var(--red)}.btn.blue{background:var(--blue)}.btn.amber{background:var(--amber)}
.btn.out{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.row>div{flex:1;min-width:140px}.row>.auto{flex:0 0 auto;min-width:0}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{border:1px solid var(--line);padding:7px 9px;text-align:left;vertical-align:middle}
th{background:#f8fafc;font-weight:600;font-size:15px}
td.r,th.r{text-align:right}td.c,th.c{text-align:center}
tr.total td{font-weight:700;background:#f8fafc}
.alert{padding:10px 14px;border-radius:8px;margin-bottom:14px}
.alert.ok{background:#dcfce7;color:#166534}.alert.err{background:#fee2e2;color:#991b1b}.alert.info{background:#dbeafe;color:#1e40af}
.badge{display:inline-block;padding:1px 8px;border-radius:20px;font-size:13px;background:#e5e7eb}
.badge.g{background:#dcfce7;color:#166534}.badge.r{background:#fee2e2;color:#991b1b}.badge.a{background:#fef3c7;color:#92400e}
.muted{color:var(--muted)}.small{font-size:14px}.right{text-align:right}.mt{margin-top:12px}
.avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;background:#eee}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.tabs a{padding:6px 14px;border-radius:20px;background:#fff;border:1px solid var(--line);text-decoration:none;color:var(--text)}
.tabs a.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.center-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}
.login-card{width:100%;max-width:380px}
.att-opt label{display:inline-flex;gap:4px;align-items:center;margin-right:10px;color:var(--text);cursor:pointer}
.marks-input{width:80px;text-align:center}
.due-box{background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:10px}

/* প্রিন্ট ডকুমেন্ট */
.doc{background:#fff;max-width:900px;margin:0 auto;padding:18px}
.pad{display:flex;align-items:center;gap:14px;border-bottom:3px double var(--brand);padding-bottom:8px;margin-bottom:10px}
.pad-logo{width:82px;height:82px;object-fit:contain}
.pad-text{flex:1;text-align:center;padding-right:82px}
.pad-name{font-size:24px;font-weight:700;color:#c41e1e}
.pad-en{font-size:15px;font-weight:600}
.pad-addr{font-size:14px}
.doc-title{text-align:center;margin:8px 0 12px}
.doc-title span{display:inline-block;border:1.5px solid #000;border-radius:20px;padding:2px 22px;font-weight:700;font-size:18px}
.sign-row{display:flex;justify-content:space-between;margin-top:46px;font-size:15px}
.sign-row div{border-top:1px solid #000;padding-top:3px;min-width:150px;text-align:center}
.print-bar{display:flex;gap:8px;justify-content:center;margin:10px 0}
.idcards{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.idcard{width:54mm;height:86mm;border:1px solid #999;border-radius:8px;overflow:hidden;text-align:center;font-size:12px;background:#fff;page-break-inside:avoid;display:flex;flex-direction:column}
.idcard .top{background:var(--brand);color:#fff;padding:5px 4px;font-weight:700;font-size:11.5px;line-height:1.3}
.idcard .top img{width:30px;height:30px;background:#fff;border-radius:50%;display:block;margin:0 auto 2px}
.idcard .ph{width:24mm;height:28mm;object-fit:cover;border:2px solid var(--brand);border-radius:4px;margin:6px auto 3px;display:block}
.idcard .nm{font-weight:700;font-size:14px;padding:0 4px}
.idcard table{font-size:11.5px;margin:3px auto;width:92%}.idcard td{border:0;padding:0 2px;text-align:left}
.idcard .bt{margin-top:auto;background:var(--brand);color:#fff;font-size:10.5px;padding:3px}

@media (max-width:900px){
  .menu-btn{display:block}
  .sidebar{transform:translateX(-100%);transition:transform .2s}
  body.nav-open .sidebar{transform:none}
  body.nav-open .nav-backdrop{display:block;position:fixed;inset:56px 0 0 0;background:rgba(0,0,0,.35);z-index:15}
  .content,.foot{margin-left:0}.content{padding:14px}
  .g3,.g4{grid-template-columns:repeat(2,1fr)}
  .topbar .who{display:none}
}
@media (max-width:560px){.g2,.g3,.g4{grid-template-columns:1fr}.pad-name{font-size:19px}.pad-logo{width:60px;height:60px}.pad-text{padding-right:0}}
@media print{
  .no-print,.topbar,.sidebar,.foot,.print-bar{display:none!important}
  body{background:#fff;font-size:15px}
  .content{margin:0;padding:0}
  .doc{padding:0;max-width:none}
  .card{border:0;padding:0}
  .page-break{page-break-after:always}
  th{background:#eee!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .idcard .top,.idcard .bt{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  a{color:#000;text-decoration:none}
}