:root{
  --navy:#21506b; --navy-d:#173a4f; --navy-l:#2f6589;
  --bg:#f4f6f8; --card:#ffffff; --line:#e3e8ee; --ink:#1f2937; --muted:#6b7280;
  --green:#1f8a4c; --green-bg:#e6f4ec; --red:#c0392b; --red-bg:#fbeae8;
  --amber:#b7791f; --amber-bg:#fdf3e2; --blue:#1f6fb2; --blue-bg:#e7f1fa;
  --grey:#5b6470; --grey-bg:#eef1f4; --radius:12px;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.5;font-size:15px}
a{color:var(--navy);text-decoration:none}
a:hover{text-decoration:underline}
.muted{color:var(--muted)}
.small{font-size:13px}

/* ---- Top navbar ---- */
.nav{background:var(--navy);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 6px rgba(0,0,0,.12)}
.nav-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;flex-wrap:wrap;
  padding:10px 16px;gap:4px}
.brand{font-weight:700;font-size:18px;color:#fff;margin-right:auto;display:flex;align-items:center;gap:8px}
.brand .dot{width:10px;height:10px;border-radius:50%;background:#7fd1ae;display:inline-block}
.nav a.link{color:#dbe7f0;padding:7px 11px;border-radius:8px;font-size:14px}
.nav a.link:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none}
.nav a.link.active{background:rgba(255,255,255,.18);color:#fff}
.nav .who{color:#bcd3e2;font-size:13px;padding:0 8px}

/* ---- Layout ---- */
.wrap{max-width:1100px;margin:22px auto;padding:0 16px}
.page-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.page-head h1{margin:0;font-size:24px;color:var(--navy)}
.page-head p{margin:2px 0 0;color:var(--muted);font-size:14px}

/* ---- Cards ---- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;margin-bottom:16px;box-shadow:0 1px 2px rgba(16,24,40,.04)}
.card h2{margin:0 0 12px;font-size:17px;color:var(--navy)}
.grid{display:grid;gap:16px}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}

/* ---- Stat tiles ---- */
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;
  border-left:4px solid var(--navy)}
.stat .n{font-size:30px;font-weight:700;color:var(--navy);line-height:1}
.stat .l{color:var(--muted);font-size:13px;margin-top:6px;text-transform:uppercase;letter-spacing:.04em}

/* ---- Buttons ---- */
.btn{display:inline-flex;align-items:center;gap:6px;background:var(--navy);color:#fff;border:none;
  padding:9px 16px;border-radius:9px;font-size:14px;cursor:pointer;font-weight:600}
.btn:hover{background:var(--navy-d);text-decoration:none;color:#fff}
.btn.sm{padding:6px 11px;font-size:13px}
.btn.ghost{background:#fff;color:var(--navy);border:1px solid var(--navy)}
.btn.ghost:hover{background:#eef4f8}
.btn.green{background:var(--green)} .btn.green:hover{background:#176b3a}
.btn.red{background:var(--red)} .btn.red:hover{background:#9c2c20}
.btn.grey{background:var(--grey)} .btn.grey:hover{background:#454c56}
.btn-row{display:flex;gap:8px;flex-wrap:wrap}

/* ---- Tables ---- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
th{background:#f7f9fb;color:var(--navy);font-weight:600;white-space:nowrap}
tr:hover td{background:#fafcfe}
td.actions{white-space:nowrap}

/* ---- Badges ---- */
.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:600}
.b-green{background:var(--green-bg);color:var(--green)}
.b-red{background:var(--red-bg);color:var(--red)}
.b-amber{background:var(--amber-bg);color:var(--amber)}
.b-blue{background:var(--blue-bg);color:var(--blue)}
.b-grey{background:var(--grey-bg);color:var(--grey)}
.b-navy{background:#e6edf2;color:var(--navy)}

/* ---- Forms ---- */
.form-grid{display:grid;gap:14px;grid-template-columns:repeat(2,1fr)}
.field{display:flex;flex-direction:column;gap:5px}
.field.full{grid-column:1 / -1}
label{font-size:13px;font-weight:600;color:#374151}
input,select,textarea{font:inherit;padding:9px 11px;border:1px solid #cdd5de;border-radius:9px;
  background:#fff;color:var(--ink);width:100%}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--navy-l);
  box-shadow:0 0 0 3px rgba(33,80,107,.12)}
textarea{min-height:90px;resize:vertical}

/* ---- Alerts ---- */
.alert{padding:11px 14px;border-radius:9px;margin-bottom:14px;font-size:14px}
.alert.success{background:var(--green-bg);color:var(--green);border:1px solid #bfe3cd}
.alert.error{background:var(--red-bg);color:var(--red);border:1px solid #f0c6c0}
.alert.info{background:var(--blue-bg);color:var(--blue);border:1px solid #c5dcef}

/* ---- Auth pages ---- */
.auth-bg{background:linear-gradient(160deg,var(--navy),var(--navy-d));min-height:100vh;
  display:flex;align-items:center;justify-content:center;padding:20px}
.auth-card{background:#fff;border-radius:16px;padding:30px;width:100%;max-width:420px;
  box-shadow:0 20px 50px rgba(0,0,0,.25)}
.auth-card h1{margin:0 0 4px;font-size:22px}
.auth-card .sub{color:var(--muted);margin:0 0 20px;font-size:14px}
.auth-card .btn{width:100%;justify-content:center;margin-top:6px}
.auth-foot{text-align:center;margin-top:16px;font-size:14px;color:var(--muted)}
.install-list{list-style:none;padding:0;margin:0 0 14px}
.install-list li{padding:5px 0;color:var(--green);font-size:14px}

/* ---- Front page ---- */
.hero{background:linear-gradient(160deg,var(--navy),var(--navy-d));color:#fff;padding:54px 16px 60px}
.hero-inner{max-width:1100px;margin:0 auto}
.hero h1{font-size:34px;margin:0 0 10px;max-width:720px}
.hero p{font-size:17px;color:#cfe0ec;max-width:620px;margin:0 0 22px}
.hero .btn-row .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.hero .btn-row .btn.ghost:hover{background:rgba(255,255,255,.12)}
.comp-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;
  display:flex;flex-direction:column;gap:8px}
.comp-card .cat{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.comp-card h3{margin:0;font-size:17px;color:var(--navy)}
.comp-card .meta{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:10px}
.comp-card .desc{font-size:14px;color:#475467;flex:1}
.how{display:grid;gap:16px;grid-template-columns:repeat(3,1fr)}
.how .step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.how .step .num{width:34px;height:34px;border-radius:50%;background:var(--navy);color:#fff;display:flex;
  align-items:center;justify-content:center;font-weight:700;margin-bottom:10px}
.site-foot{background:var(--navy-d);color:#bcd3e2;text-align:center;padding:22px 16px;font-size:13px;margin-top:40px}

.empty{text-align:center;padding:36px 16px;color:var(--muted)}
.empty .big{font-size:40px;margin-bottom:8px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.toolbar input,.toolbar select{width:auto;min-width:160px}
.pill-row{display:flex;gap:8px;flex-wrap:wrap}
.kv{display:flex;gap:8px;font-size:14px;padding:5px 0;border-bottom:1px solid var(--line)}
.kv .k{color:var(--muted);min-width:130px}

@media(max-width:760px){
  .grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .grid.cols-3{grid-template-columns:1fr}
  .grid.cols-2{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .how{grid-template-columns:1fr}
  .hero h1{font-size:27px}
}

/* ---- Notifications bell ---- */
.nav a.bell{position:relative;font-size:16px}
.bell-count{position:absolute;top:1px;right:-2px;background:#e03b3b;color:#fff;font-size:10px;
  font-weight:700;line-height:1;padding:2px 5px;border-radius:999px}
.notif{display:flex;gap:12px;align-items:flex-start;padding:12px 4px;border-bottom:1px solid var(--line)}
.notif.unread{background:#f3f8fc}
.notif .ic{width:34px;height:34px;border-radius:50%;background:var(--blue-bg);color:var(--blue);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:15px}
.notif .t{flex:1}
.notif .t .when{color:var(--muted);font-size:12px}

/* ---- Announcements ---- */
.note{border-left:4px solid var(--navy);background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:14px 16px;margin-bottom:12px}
.note.pinned{border-left-color:var(--amber);background:#fffdf7}
.note h3{margin:0 0 4px;font-size:16px;color:var(--navy)}
.note .meta{color:var(--muted);font-size:12px;margin-bottom:6px}
.note p{margin:0;font-size:14px;color:#475467}

/* ---- Simple bar chart ---- */
.bars{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.bar-row{display:grid;grid-template-columns:130px 1fr 42px;align-items:center;gap:10px;font-size:13px}
.bar-row .lab{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#475467}
.bar-track{background:#eef1f4;border-radius:6px;height:14px;overflow:hidden}
.bar-fill{height:100%;background:var(--navy);border-radius:6px}
.bar-row .val{text-align:right;font-weight:600;color:var(--navy)}

/* ---- Medal tally ---- */
.medal{display:inline-flex;align-items:center;gap:4px;font-weight:600}
.m-g{color:#b8860b}.m-s{color:#7c8794}.m-b{color:#a9621f}

/* ---- Certificate (screen + print) ---- */
.cert-toolbar{max-width:1000px;margin:18px auto;padding:0 16px;display:flex;gap:10px;justify-content:center}
.cert{max-width:1000px;margin:0 auto 40px;background:#fff;border:14px solid var(--navy);
  padding:48px 56px;position:relative;box-shadow:0 12px 40px rgba(0,0,0,.12);border-radius:6px}
.cert::after{content:"";position:absolute;inset:14px;border:2px solid var(--navy-l);border-radius:3px;
  pointer-events:none;opacity:.5}
.cert .c-school{text-align:center;font-size:20px;font-weight:700;color:var(--navy);letter-spacing:.04em}
.cert .c-kicker{text-align:center;color:var(--muted);text-transform:uppercase;letter-spacing:.25em;
  font-size:12px;margin-top:6px}
.cert h1{text-align:center;font-size:40px;color:var(--navy);margin:18px 0 6px;font-family:Georgia,'Times New Roman',serif}
.cert .c-sub{text-align:center;color:#555;font-size:15px;margin-bottom:24px}
.cert .c-name{text-align:center;font-size:34px;font-family:Georgia,serif;color:#1f2937;
  border-bottom:2px solid var(--line);display:inline-block;padding:0 30px 6px;margin:6px auto 4px}
.cert .c-center{text-align:center}
.cert .c-body{text-align:center;max-width:640px;margin:18px auto 6px;font-size:16px;color:#444;line-height:1.7}
.cert .c-award{text-align:center;font-size:22px;font-weight:700;color:var(--navy);margin:14px 0}
.cert .c-foot{display:flex;justify-content:space-between;margin-top:48px;gap:20px}
.cert .c-sign{flex:1;text-align:center}
.cert .c-sign .line{border-top:1.5px solid #333;margin:0 10px 6px;padding-top:6px;font-weight:600}
.cert .c-sign .role{color:var(--muted);font-size:13px}
.cert .c-seal{position:absolute;right:46px;bottom:90px;width:84px;height:84px;border-radius:50%;
  border:3px double var(--navy);color:var(--navy);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:11px;font-weight:700;line-height:1.2;transform:rotate(-12deg);opacity:.85}
@media print{
  body{background:#fff}
  .nav,.site-foot,.cert-toolbar,.no-print{display:none !important}
  .cert{box-shadow:none;margin:0 auto;border-width:10px}
  @page{size:A4 landscape;margin:10mm}
}