:root{
  --bg:#f4f7f7;
  --card:#ffffff;
  --text:#161616;
  --muted:#5f6666;
  --line:#d9dfdf;
  --accent:#155f5d;
  --accent-dark:#0e4d4b;
  --accent-soft:#e8f2f1;
  --gold:#f4a300;
  --gold-soft:#fff4d6;
  --gray:#929292;
  --ok:#e9f6ef;
  --warn:#fff4d6;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}
.wrap{max-width:1050px;margin:0 auto;padding:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:16px}
h1,h2,h3{margin-top:0}.muted{color:var(--muted)}.row{display:flex;gap:12px;flex-wrap:wrap}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
@media(max-width:760px){.grid2,.grid3{grid-template-columns:1fr}}
input,select,textarea,button{font:inherit}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#fff}
textarea{min-height:110px;resize:vertical}
button,.btn{border:0;border-radius:10px;padding:11px 15px;background:var(--accent);color:#fff;cursor:pointer;text-decoration:none;display:inline-block}
button.secondary,.btn.secondary{background:#fff;color:var(--text);border:1px solid var(--line)}
button:disabled{opacity:.5;cursor:not-allowed}
.badge{display:inline-block;padding:5px 9px;border-radius:999px;background:var(--accent2);font-size:.85rem}
.ok{background:var(--ok);padding:10px;border-radius:10px}.warn{background:var(--warn);padding:10px;border-radius:10px}
.hidden{display:none!important}.question{padding:14px;border:1px solid var(--line);border-radius:12px;margin:10px 0}
.member{display:flex;justify-content:space-between;gap:8px;padding:8px 0;border-bottom:1px solid #eee}
.member:last-child{border-bottom:0}.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
code{background:#eee;padding:2px 5px;border-radius:5px}


/* --- Student swipe/activity UI --- */
.student-shell{max-width:900px;margin:0 auto;padding:20px}
.activity-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.activity-progress{display:flex;gap:7px;align-items:center;flex-wrap:wrap}
.progress-dot{width:10px;height:10px;border-radius:999px;background:#d8dbe1;transition:.2s}
.progress-dot.active{background:#111827;transform:scale(1.2)}
.progress-dot.done{background:#6b7280}
.slide-viewport{overflow:hidden;touch-action:pan-y;border-radius:18px}
.slide-track{display:flex;transition:transform .32s ease;align-items:flex-start}
.activity-slide{flex:0 0 100%;min-width:0;padding:2px}
.slide-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}
.slide-kicker{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.slide-title{font-size:1.55rem;margin:5px 0 8px}
.slide-copy{color:var(--muted);margin:0 0 18px}
.option-grid{display:grid;gap:10px;margin-top:10px}
.option-btn{
 width:100%;min-height:48px;text-align:left;background:#fff;color:var(--text);
 border:1px solid var(--line);border-radius:12px;padding:12px 14px;cursor:pointer;
 transition:border-color .16s,background .16s,transform .08s,box-shadow .16s;
}
.option-btn:active{transform:scale(.995)}
.option-btn.selected{background:#111827;color:#fff;border-color:#111827;box-shadow:0 0 0 2px rgba(17,24,39,.08)}
.option-btn.correct{background:#eaf7ee;color:#173d22;border-color:#8ac49a}
.option-btn.incorrect{background:#fff0f0;color:#742626;border-color:#dda0a0}
.q-block{padding:16px;border:1px solid var(--line);border-radius:14px;margin:12px 0;background:#fff}
.q-number{font-size:.78rem;color:var(--muted);font-weight:700;margin-bottom:5px}
.q-text{font-weight:700;line-height:1.35}
.navbar-student{display:flex;justify-content:space-between;gap:10px;margin-top:14px}
.navbar-student button{min-width:120px}
.navbar-student .next{margin-left:auto}
.swipe-hint{text-align:center;color:var(--muted);font-size:.85rem;margin-top:8px}
.info-pill{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;background:#eef0f3;font-size:.88rem}
.private-card{background:#fff6db;border:1px solid #ecd999;border-radius:14px;padding:16px}
.private-card ul{padding-left:20px;margin-bottom:0}
.shared-status{font-size:.88rem;color:var(--muted);margin-top:8px}
.modal-backdrop{
 position:fixed;inset:0;background:rgba(0,0,0,.44);display:flex;align-items:center;justify-content:center;
 padding:20px;z-index:9999;
}
.modal-card{width:min(430px,100%);background:#fff;border-radius:18px;padding:24px;box-shadow:0 18px 60px rgba(0,0,0,.24)}
.modal-icon{width:48px;height:48px;border-radius:999px;background:#eaf7ee;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:12px}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}
.small-score{font-weight:700}
.team-inputs label{display:block;margin:12px 0}
.team-inputs input,.team-inputs textarea{margin-top:6px}
.inline-feedback{font-size:.88rem;margin-top:7px;color:var(--muted)}
.question-input{margin-top:10px}
.role-wait{background:#fff6db;border-radius:12px;padding:13px}
@media(max-width:640px){
 .student-shell{padding:12px}
 .slide-card{padding:17px}
 .slide-title{font-size:1.3rem}
 .navbar-student button{min-width:0;flex:1}
}
@media(prefers-reduced-motion:reduce){.slide-track,.option-btn,.progress-dot{transition:none}}

/* --- Colegio Mayor de Antioquia branding --- */
body{
  background:linear-gradient(180deg,#f7f9f9 0%,#f1f5f4 100%);
}
.brand-header{
  display:flex;
  align-items:center;
  gap:16px;
  padding:14px 0 8px;
}
.brand-header img{
  width:min(360px,78vw);
  max-height:92px;
  object-fit:contain;
  object-position:left center;
}
.brand-mark{
  width:7px;
  align-self:stretch;
  min-height:56px;
  border-radius:999px;
  background:var(--gold);
}
button,.btn{
  background:var(--accent);
}
button:hover,.btn:hover{
  background:var(--accent-dark);
}
button.secondary,.btn.secondary{
  background:#fff;
  color:var(--accent-dark);
  border-color:#b9caca;
}
.badge,.info-pill{
  background:var(--accent-soft);
  color:var(--accent-dark);
}
.option-btn.selected{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
  box-shadow:0 0 0 3px rgba(21,95,93,.10);
}
.progress-dot.active{background:var(--gold)}
.progress-dot.done{background:var(--accent)}
.slide-kicker{color:var(--accent-dark)}
.private-card,.role-wait{
  background:var(--gold-soft);
  border-color:#efd17b;
}
.modal-icon{
  background:var(--gold-soft);
  color:var(--accent-dark);
}
.card,.slide-card,.q-block,.question{
  border-color:#d5dede;
}
a{color:var(--accent-dark)}


/* --- v6: active-slide layout fix --- */
.slide-viewport{
  overflow:visible;
  touch-action:pan-y;
  border-radius:18px;
}
.slide-track{
  display:block;
  transform:none !important;
}
.activity-slide{
  display:none;
  width:100%;
  min-width:0;
  padding:2px;
}
.activity-slide.active-slide{
  display:block;
}
.navbar-student{
  position:relative;
  z-index:3;
  background:transparent;
  margin-top:14px;
}


/* --- v7 game, pronunciation and communicative reading --- */
.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 190px;gap:18px;align-items:start}
.game-topline{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.game-question{font-size:1.2rem;font-weight:750;line-height:1.4;padding:16px 0}
.wildcards{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px}
.wildcard-btn{
  background:#fff;color:var(--accent-dark);border:1px solid #b9caca;
  display:flex;align-items:center;gap:7px
}
.wildcard-btn span{font-size:1.1rem}
.wildcard-btn.used{opacity:.42;text-decoration:line-through}
.game-help{margin-top:12px;padding:12px 14px;border-radius:12px;background:var(--gold-soft);border:1px solid #efd17b}
.points-ladder{border:1px solid var(--line);border-radius:14px;padding:10px;background:#fff}
.point-step{display:flex;justify-content:space-between;gap:10px;padding:7px 9px;border-radius:9px;font-size:.9rem}
.point-step.current{background:var(--accent);color:#fff;font-weight:700}
.point-step.reached{color:var(--accent-dark);font-weight:700}
.pron-card{border:1px solid var(--line);border-radius:14px;padding:15px;margin:11px 0;background:#fff}
.pron-top{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
.pron-sentence{font-weight:750;line-height:1.4}
.pron-focus{color:var(--muted);font-size:.88rem;margin-top:6px}
.pron-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.pron-actions button{min-height:42px}
.pron-actions .practiced{background:var(--accent);color:#fff}
.reading-text{border:1px solid var(--line);border-radius:14px;padding:18px;background:#fbfcfc;line-height:1.65}
.reading-text p{margin:0 0 15px}
.reading-text p:last-child{margin-bottom:0}
.talk-badge{display:inline-block;margin-bottom:7px;padding:5px 8px;border-radius:999px;background:var(--gold-soft);font-size:.78rem;font-weight:700;color:#665000}
.reading-open{margin-top:10px}
@media(max-width:760px){
  .game-layout{grid-template-columns:1fr}
  .points-ladder{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px}
  .point-step{display:block;text-align:center;padding:6px 3px;font-size:.75rem}
  .point-step span:first-child{display:none}
}