@font-face{font-family:'Burma';src:url('burma.woff') format('woff');font-weight:400;font-display:swap}
@font-face{font-family:'Ayita';src:url('ayita.woff') format('woff');font-weight:400 700;font-display:swap}

:root{
  --navy:#0b2347;
  --navy2:#143866;
  --navy3:#1c4a7a;
  --gold:#c9a24a;
  --gold2:#e2c477;
  --gold3:#f3e6b8;
  --cream:#f4efe4;
  --cream2:#efe7d6;
  --card:#fffdf8;
  --line:#e2d8c3;
  --text:#16223a;
  --muted:#5f6b80;
  --good:#1f8a57;
  --goodbg:#e5f5ec;
  --bad:#b8344a;
  --badbg:#fbe9ec;
  --shadow:0 12px 32px rgba(11,35,71,.1);
  --radius:20px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;height:100%}
body{
  margin:0;
  min-height:100%;
  color:var(--text);
  font-family:'Ayita',Georgia,'Times New Roman',serif;
  font-size:18px;
  line-height:1.55;
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(226,196,119,.28), transparent 50%),
    radial-gradient(900px 400px at 110% 0%, rgba(20,56,102,.08), transparent 45%),
    var(--cream);
}
body::before{
  content:"";
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:radial-gradient(rgba(11,35,71,.05) 1px, transparent 1px);
  background-size:22px 22px;
}
h1,h2,h3,h4,.serif{font-family:'Burma',Georgia,serif;font-weight:400;letter-spacing:.01em}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer;-webkit-tap-highlight-color:transparent;border:0;background:none}
button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
.wrap{position:relative;z-index:1;max-width:760px;margin:0 auto;padding:0 16px 88px}

/* Header */
.top{
  position:sticky;top:0;z-index:20;
  background:linear-gradient(120deg,var(--navy),var(--navy2));
  color:#fff;
  border-bottom:3px solid var(--gold);
  box-shadow:0 8px 24px rgba(11,35,71,.25);
}
.top-inner{max-width:760px;margin:0 auto;padding:12px 16px 14px}
.top-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.kicker{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold2);margin:0 0 2px}
.top h1{margin:0;font-size:26px;line-height:1.15;color:#fff}
.prog-wrap{margin-top:10px}
.prog-meta{display:flex;justify-content:space-between;gap:8px;font-size:13px;color:#d5deea;margin-bottom:6px}
.prog{
  height:8px;background:rgba(255,255,255,.15);border-radius:99px;overflow:hidden;
}
.prog > i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold2),var(--gold));border-radius:99px;transition:width .35s ease}
.hidden{display:none !important}

/* Start */
.hero{padding:28px 0 8px}
.hero-card{
  background:var(--card);border:1px solid var(--line);border-radius:28px;
  box-shadow:var(--shadow);padding:28px 24px 24px;text-align:center;
  position:relative;overflow:hidden;
}
.hero-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:6px;
  background:linear-gradient(90deg,var(--navy),var(--gold),var(--navy));
}
.icon-badge{
  width:74px;height:74px;margin:8px auto 14px;border-radius:22px;
  background:linear-gradient(160deg,var(--navy),var(--navy3));
  display:grid;place-items:center;box-shadow:0 8px 0 var(--gold);
}
.hero h2{margin:0 0 8px;font-size:34px;color:var(--navy)}
.lead{margin:0 auto 18px;max-width:32em;color:var(--muted);font-size:17.5px}
.form{display:grid;gap:12px;text-align:left;margin:18px 0 8px}
.form label{display:block;font-size:14px;color:var(--navy);font-weight:700;margin-bottom:6px}
.form input,.form select{
  width:100%;height:52px;border:2px solid var(--line);border-radius:14px;
  padding:0 14px;background:#fff;font-size:18px;
}
.form input:focus,.form select:focus{border-color:var(--gold)}
.classes{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.class-btn{
  height:54px;border:2px solid var(--line);border-radius:14px;background:#fff;
  font-size:20px;font-weight:700;color:var(--navy);transition:.15s;
}
.class-btn.on{background:var(--navy);color:#fff;border-color:var(--navy);box-shadow:0 4px 0 var(--gold)}
.class-btn[data-class="Other"]{grid-column:1 / -1}
.bigbtn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:56px;padding:12px 28px;border-radius:16px;width:100%;
  background:linear-gradient(#e2c477,#c9a24a);color:var(--navy);
  font-size:20px;font-weight:700;box-shadow:0 4px 0 #9a7a32;
  transition:transform .12s ease, box-shadow .12s;
}
.bigbtn:hover{transform:translateY(-1px)}
.bigbtn:active{transform:translateY(2px);box-shadow:0 2px 0 #9a7a32}
.bigbtn.navy{background:linear-gradient(var(--navy2),var(--navy));color:#fff;box-shadow:0 4px 0 #07162d}
.ghost{
  min-height:48px;padding:10px 18px;border-radius:14px;
  border:2px solid var(--line);background:#fff;color:var(--navy);font-weight:700;
}
.note-lite{margin:14px 0 0;font-size:14.5px;color:var(--muted)}

/* Lesson */
.lesson{padding:18px 0 8px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:22px 20px;margin-bottom:14px;
}
.part-chip{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--navy);color:var(--gold2);border-radius:99px;
  padding:5px 12px;font-size:12px;letter-spacing:.1em;text-transform:uppercase;
}
.lesson h2{margin:10px 0 6px;font-size:30px;color:var(--navy)}
.rule{
  background:linear-gradient(180deg,#102a52,var(--navy2));
  color:#f4efe4;border-radius:16px;padding:16px 16px 16px 18px;
  border-left:5px solid var(--gold);margin:14px 0;
}
.rule strong{display:block;color:var(--gold2);font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:6px;font-family:'Ayita',serif}
.example{
  background:var(--cream);border:1px solid var(--line);border-radius:16px;
  padding:14px 14px 8px;margin:12px 0;
}
.example .elab{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 8px;font-weight:700}
.ex-line{display:flex;flex-wrap:wrap;align-items:flex-end;gap:6px 8px;font-size:22px;margin:6px 0 12px;line-height:1.35}
.ex-word{position:relative;padding:2px 2px 4px;display:inline-block}
.ex-word .tag{
  display:block;font-size:10px;letter-spacing:.08em;text-transform:uppercase;
  font-weight:700;text-align:center;margin-bottom:2px;font-family:'Ayita',serif;
}
.ex-word.action{color:var(--navy);border-bottom:3px solid var(--gold);font-weight:700}
.ex-word.action .tag{color:#9a7a32}
.ex-word.help{color:var(--navy3);border-bottom:3px double var(--navy);font-weight:700}
.ex-word.help .tag{color:var(--navy3)}
.ex-word.main{color:#7a4e12;border-bottom:3px solid var(--gold);font-weight:700}
.ex-word.main .tag{color:#9a7a32}
.ex-word.state{color:#1a5c8a;border-bottom:3px solid #3a8fbf;font-weight:700}
.ex-word.state .tag{color:#1a5c8a}
.ex-word.skip{color:var(--muted);border-bottom:3px dotted #c9c1ae}
.ex-word.skip .tag{color:#9aa3b2}
.helpers{
  display:grid;gap:8px;margin:8px 0 4px;
}
.helpers div{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 12px;font-size:15.5px;
}
.helpers b{color:var(--navy)}
.tip{
  background:linear-gradient(180deg,#fff8e6,var(--gold3));
  border:1px solid #e6d08a;border-radius:16px;padding:14px 14px 14px 16px;
  display:flex;gap:12px;align-items:flex-start;margin-top:8px;
}
.tip svg{flex-shrink:0;width:28px;height:28px;color:#9a7a32;margin-top:2px}
.tip p{margin:0;font-size:16.5px}
.tip b{color:var(--navy)}

/* Quiz */
.qcard{padding:16px 0 8px}
.skill{
  display:inline-block;background:var(--cream2);color:var(--navy);
  border-radius:99px;padding:4px 12px;font-size:13px;font-weight:700;letter-spacing:.04em;
  margin-bottom:10px;
}
.prompt{font-family:'Burma',Georgia,serif;font-size:28px;line-height:1.25;color:var(--navy);margin:0 0 16px}
.sentence{
  display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 16px;align-items:center;
}
.word{
  appearance:none;border:2px solid var(--line);background:#fff;color:var(--text);
  border-radius:12px;padding:8px 12px;font-size:22px;min-height:48px;
  transition:background .15s,border-color .15s,transform .12s,color .15s;
}
.word:hover:not(:disabled){border-color:var(--gold);transform:translateY(-1px)}
.word.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.word.right{background:var(--goodbg);color:var(--good);border-color:var(--good);box-shadow:0 0 0 2px #cdebd9}
.word.wrong{background:var(--badbg);color:var(--bad);border-color:var(--bad)}
.blank-sent{font-size:24px;line-height:1.5;margin:0 0 16px;color:var(--navy)}
.blank{
  display:inline-block;min-width:92px;border-bottom:3px solid var(--gold);
  color:var(--navy);font-weight:700;padding:0 6px;margin:0 4px;
}
.opts{display:grid;gap:10px}
.opts.g2{grid-template-columns:1fr 1fr}
.opt{
  text-align:left;background:#fff;border:2px solid var(--line);border-radius:16px;
  padding:14px 16px;font-size:18.5px;line-height:1.4;color:var(--text);
  transition:transform .12s,border-color .15s,background .15s;
  min-height:56px;
}
.opt:hover:not(:disabled){border-color:var(--gold);transform:translateY(-1px)}
.opt.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.opt.right{background:var(--goodbg);color:#145c38;border-color:var(--good)}
.opt.wrong{background:var(--badbg);color:var(--bad);border-color:var(--bad)}
.pm{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pm .opt{text-align:center;padding:22px 12px;font-size:20px;font-weight:700}
.pm .opt span{display:block;font-size:13px;font-weight:400;color:var(--muted);margin-top:4px;font-family:'Ayita',serif}
.pm .opt.on span,.pm .opt.right span,.pm .opt.wrong span{color:inherit;opacity:.85}
.pm svg{width:36px;height:36px;margin:0 auto 8px;display:block}

.feedback{
  margin-top:14px;border-radius:16px;padding:14px 16px;display:none;
  animation:rise .28s ease;
}
.feedback.show{display:block}
.feedback.ok{background:var(--goodbg);border:1px solid #bfe3cd;color:#145c38}
.feedback.no{background:var(--badbg);border:1px solid #f3c5cd;color:#7a2232}
.feedback .ver{font-weight:700;margin:0 0 4px;font-size:18px}
.feedback p{margin:0;font-size:16.5px}

@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes fadein{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.view-anim{animation:fadein .32s ease}

/* Nav */
.nav{
  display:flex;gap:10px;margin-top:18px;align-items:stretch;
}
.nav button{
  flex:1;min-height:54px;border-radius:14px;font-size:18px;font-weight:700;
  border:2px solid var(--line);background:#fff;color:var(--navy);
}
.nav .next{
  background:linear-gradient(#e2c477,#c9a24a);border-color:transparent;color:var(--navy);
  box-shadow:0 3px 0 #9a7a32;
}
.nav .next:disabled{opacity:.45;box-shadow:none}
.nav .next.submitbtn{background:linear-gradient(var(--navy2),var(--navy));color:#fff;box-shadow:0 3px 0 #07162d}

/* Footer */
.footer{
  position:relative;z-index:1;text-align:center;padding:8px 16px 20px;color:var(--muted);font-size:14px;
}
.footer .who{color:var(--navy);font-weight:700}
.footer .note{margin-top:4px}

/* Overlays */
.overlay{
  position:fixed;inset:0;background:rgba(11,35,71,.55);z-index:40;
  display:none;align-items:flex-end;justify-content:center;padding:16px;
  backdrop-filter:blur(4px);
}
.overlay.open{display:flex}
.panel{
  background:var(--card);border-radius:24px 24px 18px 18px;width:min(640px,100%);
  max-height:min(92vh,900px);overflow:auto;padding:24px 22px 20px;
  box-shadow:0 20px 50px rgba(0,0,0,.25);animation:rise .3s ease;
  border:1px solid var(--line);
}
.panel h2{margin:0 0 8px;font-size:30px;color:var(--navy);text-align:center}
.score-ring{width:160px;height:160px;margin:8px auto 10px;position:relative}
.score-ring svg{width:160px;height:160px;transform:rotate(-90deg)}
.score-ring .num{
  position:absolute;inset:0;display:grid;place-items:center;text-align:center;
  font-family:'Burma',Georgia,serif;color:var(--navy);
}
.score-ring .num b{display:block;font-size:42px;line-height:1;font-weight:400}
.score-ring .num small{font-size:14px;color:var(--muted);font-family:'Ayita',serif}
.who-line{text-align:center;margin:0 0 6px;font-size:17px}
.pct-line{text-align:center;color:var(--muted);margin:0 0 16px}
.prow{display:grid;grid-template-columns:1fr 120px auto;gap:8px;align-items:center;margin:8px 0}
.prow b{display:block;color:var(--navy);font-size:15px}
.prow small{display:block;color:var(--muted);font-size:13px;font-weight:400}
.meter{height:10px;background:var(--cream2);border-radius:99px;overflow:hidden}
.meter .fill{height:100%;background:linear-gradient(90deg,var(--gold2),var(--gold));border-radius:99px}
.sendstatus{text-align:center;margin:12px 0 4px;font-size:15.5px;color:var(--muted)}
.sendstatus.ok{color:var(--good)}
.sendstatus.err{color:var(--bad)}
.btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.btns button{flex:1;min-width:140px;min-height:50px;border-radius:14px;font-weight:700}
.btns .secondary{border:2px solid var(--line);background:#fff}
.missing-link{
  display:block;width:100%;text-align:left;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:12px 14px;margin:6px 0;font-size:16px;
}
.rlist{margin-top:16px}
.rlist h3{margin:0 0 8px;font-size:20px;color:var(--navy)}
.ritem{display:flex;gap:10px;padding:10px 0;border-top:1px solid var(--line);font-size:15.5px}
.mk{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;flex-shrink:0;font-weight:700;font-size:14px}
.mk.g{background:var(--goodbg);color:var(--good)}
.mk.b{background:var(--badbg);color:var(--bad)}
.ritem .ya{color:var(--bad)}
.ritem .ca{color:var(--good)}

@media(max-width:620px){
  body{font-size:17px}
  .top h1{font-size:22px}
  .hero h2,.lesson h2,.prompt{font-size:24px}
  .ex-line{font-size:19px}
  .word{font-size:19px;padding:8px 10px}
  .opts.g2,.pm,.classes{grid-template-columns:1fr}
  .prow{grid-template-columns:1fr;gap:4px}
  .hero-card,.card,.panel{padding:18px 16px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}