/* ETI Diplomatic Academy — student portal
   Navy #16255C · Gold #F0C75E · White */

:root{
  --navy:#16255C;
  --navy-d:#0E1940;
  --navy-l:#22367E;
  --gold:#F0C75E;
  --gold-d:#C9A23F;
  --ink:#16193A;
  --muted:#3A4166;
  --line:#E2E5EF;
  --bg:#F5F6FA;
  --card:#FFFFFF;
  --ok:#1E8E5A;
  --warn:#B8860B;
  --err:#C0392B;
  --radius:14px;
  --shadow:0 1px 2px rgba(22,37,92,.06), 0 8px 24px rgba(22,37,92,.08);
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --serif:"Lora",Georgia,"Times New Roman",serif;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
  padding-bottom:env(safe-area-inset-bottom);
}
a{color:var(--navy-l);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0 0 .4em;line-height:1.25;font-weight:700;letter-spacing:-.01em}
h1{font-size:1.5rem}
h2{font-size:1.15rem}
h3{font-size:1rem}
p{margin:0 0 .9em}
small{font-size:.8125rem}

/* ---------- utility ---------- */
.hidden{display:none !important}
.muted{color:var(--muted)}
.center{text-align:center}
.row{display:flex;gap:10px;align-items:center}
.row.wrap{flex-wrap:wrap}
.spacer{flex:1}
.stack{display:flex;flex-direction:column;gap:14px}

/* ---------- crest ---------- */
.crest{width:44px;height:44px;flex:0 0 44px;border-radius:50%;object-fit:contain;background:transparent}
.crest-fallback{
  width:44px;height:44px;flex:0 0 44px;border-radius:50%;
  background:var(--navy-d);border:2px solid var(--gold);
  display:flex;align-items:center;justify-content:center;
  color:var(--gold);font-weight:800;font-size:.72rem;letter-spacing:.06em;
  font-family:var(--serif);
}
.crest-lg,.crest-lg.crest-fallback{width:84px;height:84px;flex:0 0 84px;font-size:1.15rem}

/* ---------- app shell ---------- */
.appbar{
  background:var(--navy);
  color:#fff;
  padding:12px 16px;
  display:flex;align-items:center;gap:12px;
  position:sticky;top:0;z-index:40;
  border-bottom:3px solid var(--gold);
}
.appbar .title{font-weight:700;font-size:1rem;line-height:1.2}
.appbar .sub{font-size:.75rem;color:var(--gold);letter-spacing:.04em;text-transform:uppercase}
.appbar button{
  background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.22);
  border-radius:8px;padding:7px 12px;font-size:.8125rem;cursor:pointer;font-family:inherit;
}
.appbar button:hover{background:rgba(255,255,255,.18)}

main{max-width:880px;margin:0 auto;padding:18px 16px 92px}

/* ---------- bottom nav ---------- */
.nav{
  position:fixed;bottom:0;left:0;right:0;z-index:50;
  background:#fff;border-top:1px solid var(--line);
  display:flex;justify-content:center;
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -2px 14px rgba(22,37,92,.07);
}
.nav-inner{display:flex;width:100%;max-width:880px}
.nav button{
  flex:1;background:none;border:0;cursor:pointer;font-family:inherit;
  padding:9px 2px 10px;color:var(--muted);font-size:.6875rem;font-weight:600;
  display:flex;flex-direction:column;align-items:center;gap:3px;
  border-top:3px solid transparent;margin-top:-1px;
}
.nav button svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round}
.nav button.active{color:var(--navy);border-top-color:var(--gold)}

/* ---------- clearance for the host badge (bottom-right, 194x64) ---------- */
body.has-nf-badge .nav{padding-bottom:calc(env(safe-area-inset-bottom) + 66px)}
body.has-nf-badge main{padding-bottom:158px}
@media print{ body.has-nf-badge main{padding-bottom:0} }

/* ---------- cards ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow);
}
.card.tap{cursor:pointer;transition:transform .12s ease,box-shadow .12s ease}
.card.tap:hover{transform:translateY(-1px);box-shadow:0 2px 4px rgba(22,37,92,.08),0 12px 30px rgba(22,37,92,.12)}
.card h3{margin-bottom:.25em}

.hero{
  background:linear-gradient(145deg,var(--navy) 0%,var(--navy-d) 100%);
  color:#fff;border-radius:var(--radius);padding:20px;border:0;
  box-shadow:var(--shadow);
}
.hero h2{color:#fff}
.hero .muted{color:rgba(255,255,255,.72)}
.hero .label{color:var(--gold);font-size:.7rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase}

.countdown{display:flex;gap:8px;margin-top:14px}
.cd-box{
  background:rgba(255,255,255,.1);border:1px solid rgba(240,199,94,.35);
  border-radius:10px;padding:8px 4px;text-align:center;flex:1;
}
.cd-box b{display:block;font-size:1.45rem;color:var(--gold);line-height:1.1;font-variant-numeric:tabular-nums}
.cd-box span{font-size:.625rem;text-transform:uppercase;letter-spacing:.07em;color:rgba(255,255,255,.7)}

/* ---------- pills / badges ---------- */
.pill{
  display:inline-block;padding:3px 9px;border-radius:999px;
  font-size:.6875rem;font-weight:700;letter-spacing:.03em;white-space:nowrap;
}
.pill-gold{background:#FDF3D9;color:#8A6D1C;border:1px solid #F0DCA4}
.pill-navy{background:#E8EBF7;color:var(--navy);border:1px solid #CCD4EC}
.pill-ok{background:#E3F5EC;color:var(--ok);border:1px solid #BCE5D1}
.pill-warn{background:#FCF1DC;color:var(--warn);border:1px solid #F2DDB0}
.pill-err{background:#FBE7E5;color:var(--err);border:1px solid #F3C9C5}
.pill-grey{background:#EEF0F6;color:var(--muted);border:1px solid var(--line)}

/* ---------- forms ---------- */
label{display:block;font-size:.875rem;font-weight:700;margin:0 0 6px;color:var(--ink)}
input,select,textarea{
  width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;
  font-size:1rem;font-family:inherit;background:#fff;color:var(--ink);
}
input:focus,select:focus,textarea:focus{
  outline:0;border-color:var(--navy-l);box-shadow:0 0 0 3px rgba(34,54,126,.12);
}
textarea{min-height:120px;resize:vertical;line-height:1.55}
.field{margin-bottom:14px}
.code-input{
  text-transform:uppercase;letter-spacing:.24em;font-weight:700;
  text-align:center;font-size:1.2rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:12px 18px;border-radius:10px;border:1px solid transparent;
  font-size:.9375rem;font-weight:600;font-family:inherit;cursor:pointer;
  background:var(--navy);color:#fff;transition:background .12s ease;
}
.btn:hover{background:var(--navy-l)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn-block{width:100%}
.btn-gold{background:var(--gold);color:var(--navy-d)}
.btn-gold:hover{background:var(--gold-d)}
.btn-ghost{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{background:#F2F4FA}
.btn-sm{padding:7px 13px;font-size:.8125rem;border-radius:8px}
.btn-danger{background:#fff;color:var(--err);border-color:#F3C9C5}
.btn-danger:hover{background:#FDF2F1}

/* ---------- messages ---------- */
.msg{padding:11px 14px;border-radius:10px;font-size:.875rem;margin-bottom:14px;border:1px solid}
.msg-err{background:#FBE7E5;border-color:#F3C9C5;color:#912018}
.msg-ok{background:#E3F5EC;border-color:#BCE5D1;color:#10603C}
.msg-info{background:#EEF1FA;border-color:#D3DAF0;color:var(--navy)}
.msg-warn{background:#FCF4E2;border-color:#F0DCA4;color:#7A5B10}

/* ---------- auth ---------- */
.auth-wrap{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  padding:24px 16px;
  background:linear-gradient(160deg,var(--navy) 0%,var(--navy-d) 100%);
}
.auth-card{
  background:#fff;border-radius:18px;padding:28px 24px;width:100%;max-width:410px;
  box-shadow:0 20px 60px rgba(0,0,0,.3);
}
.auth-head{text-align:center;margin-bottom:22px}
.auth-head .crest,.auth-head .crest-fallback{margin:0 auto 12px}
.auth-head h1{font-family:var(--serif);font-size:1.3rem;color:var(--navy)}
.auth-head .tag{font-size:.78rem;font-weight:600;letter-spacing:.07em;color:var(--muted);text-transform:uppercase}
.auth-foot{text-align:center;margin-top:18px;font-size:.9375rem;color:var(--ink)}
.auth-foot .muted{color:var(--ink)}
.auth-foot a{color:var(--navy-l);font-weight:700;text-decoration:underline}
.auth-steps{display:flex;gap:6px;justify-content:center;margin-bottom:20px}
.auth-steps i{width:34px;height:4px;border-radius:2px;background:var(--line)}
.auth-steps i.on{background:var(--gold)}

.auth-instruct{
  font-size:1rem;font-weight:600;color:var(--ink);text-align:center;
  line-height:1.45;margin:0 0 16px;
}

/* placeholders: browser defaults are far too faint */
input::placeholder,textarea::placeholder{color:#7A82A0;opacity:1}
.code-input::placeholder{color:#9AA1BC;letter-spacing:.18em}

/* ---------- tabs ---------- */
.tabs{display:flex;gap:6px;background:#E9ECF5;padding:4px;border-radius:11px;margin-bottom:16px}
.tabs button{
  flex:1;padding:8px 6px;border:0;border-radius:8px;background:transparent;cursor:pointer;
  font-family:inherit;font-size:.8125rem;font-weight:600;color:var(--muted);
}
.tabs button.active{background:#fff;color:var(--navy);box-shadow:0 1px 3px rgba(22,37,92,.14)}

/* ---------- content rendering ---------- */
.content-body{font-family:var(--serif);font-size:1.02rem;line-height:1.75;color:#22263f}
.content-body p{margin:0 0 1.05em}
.content-body h1,.content-body h2,.content-body h3{font-family:var(--font);color:var(--navy);margin-top:1.4em}
.content-body ul,.content-body ol{padding-left:1.3em;margin:0 0 1.05em}
.content-body li{margin-bottom:.4em}
.content-body strong{color:var(--navy)}
.content-body blockquote{
  margin:0 0 1.05em;padding:2px 0 2px 16px;border-left:3px solid var(--gold);color:var(--muted);
}

.thread{
  background:#FDF8EA;border:1px solid #F0DCA4;border-left:4px solid var(--gold);
  border-radius:10px;padding:14px 16px;
}
.thread .label{
  font-size:.6875rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:#8A6D1C;margin-bottom:6px;
}

/* ---------- misc ---------- */
.divider{height:1px;background:var(--line);margin:18px 0}
.empty{text-align:center;padding:38px 18px;color:var(--muted)}
.empty svg{width:40px;height:40px;stroke:#C3C9DC;fill:none;stroke-width:1.5;margin-bottom:10px}
.skeleton{background:linear-gradient(90deg,#EDEFF6 25%,#F6F7FB 50%,#EDEFF6 75%);
  background-size:200% 100%;animation:sk 1.3s infinite;border-radius:8px;height:14px}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

.list-item{
  display:flex;gap:13px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--line);
}
.list-item:last-child{border-bottom:0}
.num{
  flex:0 0 36px;height:36px;border-radius:9px;background:var(--navy);color:var(--gold);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.875rem;
}
.num.locked{background:#E9ECF5;color:#A7AFC8}

table{width:100%;border-collapse:collapse;font-size:.875rem}
th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:.6875rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700}
.scroll-x{overflow-x:auto;-webkit-overflow-scrolling:touch}

code,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.8125rem}
.codechip{
  background:var(--navy-d);color:var(--gold);padding:7px 14px;border-radius:8px;
  letter-spacing:.2em;font-weight:700;display:inline-block;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}

.back{
  background:none;border:0;color:var(--muted);font-family:inherit;font-size:.875rem;
  cursor:pointer;padding:0 0 12px;display:flex;align-items:center;gap:5px;font-weight:600;
}
.back:hover{color:var(--navy)}

@media (min-width:720px){
  h1{font-size:1.75rem}
  main{padding:26px 20px 92px}
  .crest,.crest-fallback{width:48px;height:48px;flex-basis:48px}
}

@media print{
  .nav,.appbar,.back,.btn{display:none !important}
  body{background:#fff}
  main{padding:0;max-width:none}
  .card{box-shadow:none;border:0}
}