/* Sechi University: shared styles */
:root{
  --navy:#14284B; --navy2:#1F3A68; --navy-soft:#E7ECF5;
  --red:#C8102E; --red-d:#9E0B23;
  --cream:#F6F0E1; --paper:#FFFDF8; --gold:#B8912F; --gold-soft:#F3E7C6;
  --ink:#1E2430; --muted:#5B6475; --line:#E2D8C0;
  --ok:#1D7447; --ok-bg:#E3F3EA; --no:#B3261E; --no-bg:#FBE8E6; --tip-bg:#FFF5D9;
  --radius:16px; --shadow:0 2px 0 rgba(20,40,75,.06),0 10px 30px -18px rgba(20,40,75,.35);
}
*{box-sizing:border-box}
html{font-size:19px;scroll-behavior:smooth}
body{margin:0;background:var(--cream);color:var(--ink);font-family:"Atkinson Hyperlegible",Verdana,Segoe UI,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,.serif{font-family:"Playfair Display",Georgia,"Times New Roman",serif;color:var(--navy);line-height:1.2;margin:0 0 .5em}
h1{font-size:2.2rem}
h2{font-size:1.75rem}
h3{font-size:1.25rem}
p{margin:0 0 1em}
b,strong{color:var(--navy)}
a{color:var(--red)}
button{font:inherit;cursor:pointer}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}

/* Top bar */
.topbar{background:var(--navy);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 2px 10px rgba(0,0,0,.15)}
.topbar .wrap{display:flex;align-items:center;gap:14px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none}
.brand svg{width:38px;height:46px;flex:none}
.brand .name{font-family:"Playfair Display",Georgia,serif;font-size:1.2rem;font-weight:700;letter-spacing:.02em;line-height:1}
.brand .sub{font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;opacity:.75}
.topbar .spacer{flex:1}
.pill{display:inline-flex;align-items:center;gap:8px;border:2px solid rgba(255,255,255,.35);background:transparent;color:#fff;border-radius:999px;padding:6px 14px;font-size:.85rem}
.pill:hover{border-color:#fff}
.pill[aria-pressed="true"]{background:#fff;color:var(--navy);border-color:#fff}
.progress{height:6px;background:rgba(255,255,255,.15)}
.progress span{display:block;height:100%;background:var(--red);width:0;transition:width .4s ease}

/* Tube line nav */
.tube{background:var(--paper);border-bottom:1px solid var(--line);padding:18px 0 10px}
.tube ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(var(--n),1fr);position:relative}
.tube ol::before{content:"";position:absolute;left:calc(50%/var(--n));right:calc(50%/var(--n));top:11px;height:8px;background:var(--red);border-radius:4px}
.tube li{position:relative;text-align:center}
.stop{background:none;border:0;padding:0;display:flex;flex-direction:column;align-items:center;gap:6px;width:100%;color:var(--muted)}
.stop .dot{width:30px;height:30px;border-radius:50%;background:#fff;border:6px solid var(--navy);position:relative;z-index:1;transition:transform .2s}
.stop .lbl{font-size:.72rem;line-height:1.2;font-weight:700;letter-spacing:.01em}
.stop:hover .dot{transform:scale(1.12)}
.stop.done .dot{background:var(--navy)}
.stop.done .dot::after{content:"✓";color:#fff;position:absolute;inset:0;display:grid;place-items:center;font-size:13px;font-weight:700}
.stop.current .dot{border-color:var(--red);background:#fff;transform:scale(1.25);box-shadow:0 0 0 5px rgba(200,16,46,.15)}
.stop.current .lbl{color:var(--red)}
.stop.done .lbl{color:var(--navy)}

/* Sections */
main{padding:34px 0 80px}
.section{display:none;animation:fade .35s ease}
.section.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.sec-head{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.sec-head .icon{width:64px;height:64px;flex:none;border-radius:18px;background:var(--navy);color:#fff;display:grid;place-items:center}
.sec-head .icon svg{width:40px;height:40px}
.sec-head .icon.red{background:var(--red)}
.sec-head h2{margin:0}
.sec-head .meta{font-size:.82rem;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap;margin-top:4px}
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--gold-soft);color:#6b5414;border-radius:999px;padding:2px 12px;font-weight:700;font-size:.8rem}

.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;margin-bottom:22px;box-shadow:var(--shadow)}
.card h3{margin-top:0}
.tip{background:var(--tip-bg);border-left:6px solid var(--gold);border-radius:12px;padding:16px 20px;margin:0 0 22px}
.tip b{color:#6b5414}
.note{background:var(--navy-soft);border-left:6px solid var(--navy);border-radius:12px;padding:16px 20px;margin:0 0 22px}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.it{color:var(--muted);font-style:italic}

/* Tables */
table.grid{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:6px;background:#fff}
.grid th,.grid td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.grid th{background:var(--navy);color:#fff;font-weight:700}
.grid tr:last-child td{border-bottom:0}
.grid td:first-child{font-weight:700;color:var(--navy);white-space:nowrap}
.two{display:grid;grid-template-columns:1fr 1fr;gap:22px}
@media (max-width:760px){.two{grid-template-columns:1fr}}

/* Buttons */
.btn{text-decoration:none;display:inline-flex;align-items:center;gap:8px;border:0;border-radius:999px;padding:12px 26px;background:var(--red);color:#fff;font-weight:700;font-size:1rem;box-shadow:0 3px 0 var(--red-d);transition:transform .1s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(2px);box-shadow:0 1px 0 var(--red-d)}
.btn.navy{background:var(--navy);box-shadow:0 3px 0 #0b1830}
.btn.ghost{background:#fff;color:var(--navy);box-shadow:inset 0 0 0 2px var(--navy)}
.btn.small{padding:8px 18px;font-size:.88rem}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}
.navrow{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:30px;flex-wrap:wrap}
.say{border:0;background:var(--navy-soft);color:var(--navy);border-radius:999px;width:38px;height:38px;display:inline-grid;place-items:center;font-size:1rem;flex:none;vertical-align:middle;transition:background .15s}
.say:hover{background:var(--navy);color:#fff}
.say.speaking{background:var(--red);color:#fff}

/* Questions */
.qset{counter-reset:q}
.q{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:14px}
.q.is-ok{border-color:#9fd1b5;background:#fbfffc}
.q-head{display:flex;gap:12px;align-items:flex-start}
.num{flex:none;width:32px;height:32px;border-radius:50%;background:var(--navy);color:#fff;font-weight:700;font-size:.85rem;display:grid;place-items:center;margin-top:2px}
.q.is-ok .num{background:var(--ok)}
.q-text{flex:1;font-size:1.05rem}
.q-sub{font-size:.85rem;color:var(--muted);margin-top:2px}
.opts{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0 0 44px}
.opt{border:2px solid var(--line);background:#fff;border-radius:12px;padding:9px 18px;color:var(--ink);font-size:1rem;transition:border-color .15s,background .15s}
.opt:hover:not([disabled]){border-color:var(--navy)}
.opt.picked{border-color:var(--navy);background:var(--navy-soft);font-weight:700}
.opt.correct{border-color:var(--ok);background:var(--ok-bg);color:var(--ok);font-weight:700}
.opt.wrong{border-color:var(--no);background:var(--no-bg);color:var(--no);text-decoration:line-through}
.opt[disabled]{cursor:default}
.fb{margin:12px 0 0 44px;border-radius:10px;padding:0 14px;font-size:.95rem;max-height:0;overflow:hidden;transition:all .25s}
.fb.show{padding:10px 14px;max-height:400px}
.fb.ok{background:var(--ok-bg);color:#14532f}
.fb.no{background:var(--no-bg);color:#7a1a14}
.fb.mid{background:var(--tip-bg);color:#5a4510}
.fb .linkbtn{background:none;border:0;padding:0;color:inherit;text-decoration:underline;font-weight:700}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:14px 0 0 44px}
input.gap{font:inherit;font-size:1.05rem;border:0;border-bottom:3px dashed var(--navy);background:#FFF7E0;padding:2px 8px;width:9em;border-radius:6px 6px 0 0;color:var(--navy);font-weight:700;outline:none}
input.gap:focus{background:#FFEFC2;border-bottom-style:solid}
input.gap.wide{width:100%;max-width:560px}
input.gap.ok{border-bottom:3px solid var(--ok);background:var(--ok-bg);color:var(--ok)}
input.gap.no{border-bottom:3px solid var(--no);background:var(--no-bg);color:var(--no)}
.shake{animation:shake .3s}
@keyframes shake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:2px solid var(--navy);background:#fff;color:var(--navy);border-radius:999px;padding:6px 16px;font-weight:700;font-size:1rem}
.chip:hover{background:var(--navy-soft)}
.chip.used{visibility:hidden}
.answer-line{min-height:52px;border:2px dashed var(--line);border-radius:12px;padding:8px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;flex:1;background:#fffdf5}
.answer-line .chip{background:var(--navy);color:#fff}
.answer-line .ph{color:var(--muted);font-size:.9rem;padding-left:6px}
.answer-line.ok{border-color:var(--ok);background:var(--ok-bg)}
.answer-line.no{border-color:var(--no);background:var(--no-bg)}

/* Vocab */
.vocab{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media (max-width:820px){.vocab{grid-template-columns:repeat(2,1fr)}}
.vcard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;display:flex;gap:10px;align-items:flex-start}
.vcard .en{font-weight:700;color:var(--navy);font-size:1.02rem;line-height:1.3}
.vcard .itx{color:var(--muted);font-size:.88rem;line-height:1.35;margin-top:2px}
.vcard > div{flex:1}

/* Mistakes */
.mist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media (max-width:820px){.mist{grid-template-columns:1fr}}
.mcard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.mcard .bad{color:var(--no);text-decoration:line-through;text-decoration-thickness:2px;font-weight:700}
.mcard .good{color:var(--ok);font-weight:700;display:flex;align-items:center;gap:10px;justify-content:space-between;margin-top:4px}
.mcard .why{font-size:.88rem;color:var(--muted);margin-top:8px;line-height:1.45}
.ff{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media (max-width:820px){.ff{grid-template-columns:1fr}}
.ffc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 16px;display:flex;gap:10px;align-items:center}
.ffc > div{flex:1;font-size:.95rem;line-height:1.4}
.ffc .w{font-weight:700;color:var(--navy);font-size:1.05rem}

/* Dialogue */
.dlg{display:flex;flex-direction:column;gap:12px}
.line{display:flex;gap:10px;align-items:flex-end;max-width:88%}
.line.g{align-self:flex-end;flex-direction:row-reverse}
.bubble{background:var(--navy-soft);border-radius:18px 18px 18px 6px;padding:12px 16px;line-height:1.7}
.line.g .bubble{background:#fff;border:2px solid var(--line);border-radius:18px 18px 6px 18px}
.who{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--muted);display:block}
.bubble .tr{display:none;color:var(--muted);font-style:italic;font-size:.88rem;line-height:1.4;margin-top:4px}
.show-tr .bubble .tr{display:block}
.bubble input.gap{width:7.5em;font-size:1rem}
.answer-hint{font-size:.82rem;color:var(--no);font-weight:700;margin:0 4px}
.answer-hint:empty{display:none}

/* Reading */
.reading p{font-size:1.1rem;line-height:1.85}
.reading p .say{margin-left:6px;width:32px;height:32px;font-size:.85rem}

/* Writing */
textarea.write{width:100%;min-height:190px;font:inherit;font-size:1.05rem;line-height:1.7;border:2px solid var(--line);border-radius:14px;padding:16px;background:#fff;color:var(--ink);resize:vertical}
textarea.write:focus{outline:none;border-color:var(--navy)}
.wc{font-size:.82rem;color:var(--muted);text-align:right;margin-top:4px}
.helpwords{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 0}
.helpwords span{background:var(--navy-soft);color:var(--navy);border-radius:999px;padding:3px 12px;font-size:.85rem;font-weight:700}

/* Result / level */
[data-test-result]{scroll-margin-top:90px}
.level{display:flex;gap:24px;align-items:center;background:var(--navy);color:#fff;border-radius:var(--radius);padding:26px 28px;margin-bottom:22px}
.level .code{font-family:"Playfair Display",Georgia,serif;font-size:4rem;font-weight:700;line-height:1;background:var(--red);border-radius:18px;padding:14px 22px}
.level h3{color:#fff;margin-bottom:.3em}
.level p{margin:0;opacity:.92}

/* Diploma */
.diploma{background:var(--paper);border:3px double var(--gold);outline:10px solid var(--paper);box-shadow:0 0 0 13px var(--gold-soft),var(--shadow);border-radius:6px;padding:40px 36px;text-align:center;margin:20px auto 30px;max-width:720px}
.diploma svg.crest{width:90px;height:108px}
.diploma .title{font-family:"Playfair Display",Georgia,serif;font-size:2.3rem;color:var(--navy);font-weight:700;margin:8px 0 0}
.diploma .lead{letter-spacing:.2em;text-transform:uppercase;font-size:.75rem;color:var(--muted);margin-top:4px}
.diploma input.nm{font-family:"Playfair Display",Georgia,serif;font-style:italic;font-size:2rem;color:var(--red);text-align:center;border:0;border-bottom:2px solid var(--gold);background:transparent;width:80%;max-width:420px;margin:18px 0 6px;outline:none}
.stars{font-size:2.2rem;letter-spacing:.15em;color:var(--gold);margin:10px 0}
.stars .off{color:#e1d6b8}
.scoreboard{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:20px 0 0;text-align:left}
@media (max-width:700px){.scoreboard{grid-template-columns:1fr 1fr}}
.scoreboard div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:.85rem}
.scoreboard b{display:block;font-size:1.1rem}
.sign{font-family:"Playfair Display",Georgia,serif;font-style:italic;color:var(--navy);font-size:1.3rem;margin-top:22px}

footer{border-top:1px solid var(--line);padding:24px 0 40px;color:var(--muted);font-size:.82rem}
footer .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center}
.linkish{background:none;border:0;color:var(--muted);text-decoration:underline;font-size:.82rem;padding:0}
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(30px);background:var(--navy);color:#fff;padding:12px 22px;border-radius:999px;font-weight:700;opacity:0;transition:all .3s;z-index:50;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%)}

@media (max-width:820px){
  html{font-size:17px}
  .stop .lbl{display:none}
  .opts,.fb,.row{margin-left:0}
  .card{padding:20px}
  .level{flex-direction:column;text-align:center}
}

@media (prefers-reduced-motion:reduce){.section{animation:none}}