@import url('https://fonts.googleapis.com/css2?family=Noto+Sans:wght@400;500;600;700&family=Noto+Sans+Bengali:wght@400;600&display=swap');

:root{
  --navy:#0B2A5B; --navy-2:#123C7A; --saffron:#E66C1E; --green:#138808;
  --paper:#F4F6F9; --white:#FFFFFF; --ink:#1B1F24; --muted:#5B6470; --line:#D9DEE5;
  --danger:#B42318; --danger-bg:#FEF3F2; --ok-bg:#EAF7EC; --warn-bg:#FFF4E5;
  --radius:6px; --shadow:0 1px 2px rgba(11,42,91,.08), 0 2px 8px rgba(11,42,91,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"Noto Sans","Noto Sans Bengali",system-ui,sans-serif;font-size:15px;line-height:1.5;color:var(--ink);background:var(--paper)}
a{color:var(--navy-2);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:3px solid var(--saffron);outline-offset:2px}
img{max-width:100%}
h1,h2,h3{margin:0 0 .5em;line-height:1.25;font-weight:600}
h1{font-size:24px}h2{font-size:19px}h3{font-size:16px}
p{margin:0 0 1em}
.tricolor{height:5px;background:linear-gradient(90deg,var(--saffron) 0 33.3%,var(--white) 33.3% 66.6%,var(--green) 66.6%)}

/* header */
.masthead{background:var(--navy);color:#fff}
.masthead .wrap{display:flex;align-items:center;gap:16px;padding:12px 24px}
.emblem{width:52px;height:52px;border-radius:50%;background:#fff;color:var(--navy);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:20px;flex:none;letter-spacing:.5px}
.masthead .title{flex:1;min-width:0}
.masthead .title .en{font-size:19px;font-weight:600;line-height:1.2}
.masthead .title .as{font-size:14px;opacity:.9;line-height:1.3}
.masthead .title .sub{font-size:13px;opacity:.8}
.masthead .user{font-size:13px;text-align:right;line-height:1.35}
.masthead .user a{color:#fff;opacity:.85;margin-left:12px}
.status-pill{display:inline-block;padding:2px 10px;border-radius:99px;font-size:12px;font-weight:600;letter-spacing:.2px}
.status-open{background:var(--green);color:#fff}
.status-closed{background:var(--danger);color:#fff}
.status-setup{background:var(--saffron);color:#fff}
.status-mock{background:#7A3FBF;color:#fff}

/* nav */
.nav{background:var(--white);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;padding:0 24px;overflow-x:auto}
.nav a{padding:12px 16px;color:var(--ink);font-weight:500;border-bottom:3px solid transparent;white-space:nowrap}
.nav a:hover{text-decoration:none;background:var(--paper)}
.nav a.active{border-bottom-color:var(--saffron);color:var(--navy)}

/* layout */
.wrap{max-width:1180px;margin:0 auto}
main.page{padding:24px}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.page-head h1{margin:0}
.page-head .actions{display:flex;gap:8px;flex-wrap:wrap}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.panel-h{padding:12px 16px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px}
.panel-h h2{margin:0;font-size:16px}
.panel-b{padding:16px}

/* stats */
.stat{padding:16px;border-left:4px solid var(--navy)}
.stat .n{font-size:32px;font-weight:700;line-height:1.1;color:var(--navy)}
.stat .l{color:var(--muted);font-size:13px;margin-top:4px}
.stat.saffron{border-left-color:var(--saffron)}.stat.saffron .n{color:var(--saffron)}
.stat.green{border-left-color:var(--green)}.stat.green .n{color:var(--green)}
.bar{height:10px;background:var(--paper);border-radius:99px;overflow:hidden;border:1px solid var(--line)}
.bar>span{display:block;height:100%;background:var(--green);transition:width .4s}
.bar.navy>span{background:var(--navy)}

/* tables */
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:9px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{background:var(--paper);font-weight:600;color:var(--navy);font-size:13px}
tr:hover td{background:#FAFBFD}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.tbl-scroll{overflow-x:auto}
.thumb{width:44px;height:44px;object-fit:cover;border-radius:4px;border:1px solid var(--line);background:#fff}
.thumb.sym{object-fit:contain;padding:3px}

/* forms */
label{display:block;font-size:13px;font-weight:500;margin:0 0 4px;color:var(--ink)}
input[type=text],input[type=password],input[type=number],input[type=date],input[type=file],select,textarea{
  width:100%;padding:9px 11px;border:1px solid #B9C2CE;border-radius:4px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{border-color:var(--navy-2);outline:2px solid rgba(18,60,122,.15)}
.field{margin-bottom:14px}
.row{display:flex;gap:12px;flex-wrap:wrap}.row>.field{flex:1;min-width:160px}
.help{font-size:12px;color:var(--muted);margin-top:4px}
.btn{display:inline-block;padding:9px 16px;border-radius:4px;border:1px solid transparent;font:inherit;font-weight:600;font-size:14px;cursor:pointer;background:var(--navy);color:#fff;line-height:1.3}
.btn:hover{background:var(--navy-2);text-decoration:none}
.btn-saffron{background:var(--saffron)}.btn-saffron:hover{background:#CF5E14}
.btn-green{background:var(--green)}.btn-green:hover{background:#0F6E06}
.btn-danger{background:var(--danger)}.btn-danger:hover{background:#912016}
.btn-light{background:#fff;color:var(--navy);border-color:#B9C2CE}.btn-light:hover{background:var(--paper)}
.btn-sm{padding:5px 10px;font-size:13px}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.inline{display:inline}

/* flash */
.flash{padding:10px 14px;border-radius:4px;margin-bottom:16px;border:1px solid;font-size:14px}
.flash.ok{background:var(--ok-bg);border-color:#9AD3A3;color:#0B5A1B}
.flash.error{background:var(--danger-bg);border-color:#F3B4AE;color:var(--danger)}
.flash.warn{background:var(--warn-bg);border-color:#F5C88B;color:#8A4B00}
.tag{display:inline-block;padding:1px 8px;border-radius:3px;font-size:12px;font-weight:600;background:var(--paper);color:var(--muted)}
.tag.issued{background:#E8F0FB;color:var(--navy)}.tag.active{background:var(--warn-bg);color:#8A4B00}
.tag.used{background:var(--ok-bg);color:#0B5A1B}.tag.revoked,.tag.expired{background:#F1F2F4;color:var(--muted)}
.tag.yes{background:var(--ok-bg);color:#0B5A1B}.tag.no{background:var(--danger-bg);color:var(--danger)}

/* footer */
.footer{padding:18px 24px;color:var(--muted);font-size:12px;text-align:center;border-top:1px solid var(--line);margin-top:32px}

/* login / home */
.center-box{max-width:420px;margin:48px auto;padding:0 16px}
.home-cards{display:grid;gap:20px;grid-template-columns:repeat(3,1fr);max-width:960px;margin:40px auto;padding:0 24px}
@media(max-width:800px){.home-cards{grid-template-columns:1fr}}
.home-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;border-top:4px solid var(--navy);box-shadow:var(--shadow)}
.home-card h2{color:var(--navy)}
.home-card.saffron{border-top-color:var(--saffron)}.home-card.green{border-top-color:var(--green)}
.home-card p{color:var(--muted);font-size:14px;min-height:60px}

/* PO code display */
.code-display{font-size:64px;font-weight:700;letter-spacing:12px;color:var(--navy);text-align:center;font-variant-numeric:tabular-nums;padding:18px 0;border:2px dashed var(--saffron);border-radius:8px;background:#FFFAF5}
.student-card{padding:16px;border-radius:var(--radius);background:var(--paper);border:1px solid var(--line)}
.student-card .name{font-size:20px;font-weight:600}
.student-card .meta{color:var(--muted)}
.countdown{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}

/* results */
.res-row{display:grid;grid-template-columns:56px 1fr 90px;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.res-row:last-child{border-bottom:0}
.res-row .cname{font-weight:600}.res-row .csub{font-size:12px;color:var(--muted)}
.res-row .cnum{text-align:right;font-size:20px;font-weight:700;color:var(--navy);font-variant-numeric:tabular-nums}
.res-row.lead .cnum{color:var(--green)}
.nota-box{width:56px;height:56px;border-radius:4px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:var(--muted);background:var(--paper)}

/* live board */
.board{padding:32px;max-width:1400px;margin:0 auto}
.board .big{font-size:120px;font-weight:700;color:var(--green);line-height:1;font-variant-numeric:tabular-nums}
.board .bar{height:28px}
.board table{font-size:18px}
.board .clock{color:var(--muted);font-size:16px}

@media print{.nav,.masthead .user,.actions,.footer,.no-print{display:none!important}body{background:#fff}.panel{box-shadow:none}}