:root{
  --bg:#0b1220;
  --panel:#0f1b31;
  --card:#0e1a2f;
  --text:#e8eefc;
  --muted:#b9c5e6;
  --soft:#7c8bb8;
  --primary:#3b82f6;
  --primary2:#2563eb;
  --danger:#ef4444;
  --ok:#22c55e;
  --shadow: 0 20px 40px rgba(0,0,0,.35);
  --radius: 18px;
}
*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:
    radial-gradient(1200px 700px at 20% 10%, rgba(59,130,246,.35), transparent 60%),
    radial-gradient(900px 600px at 85% 30%, rgba(34,197,94,.22), transparent 60%),
    radial-gradient(900px 600px at 45% 90%, rgba(244,63,94,.18), transparent 60%),
    var(--bg);
  color: var(--text);
}
.topbar{
  position: sticky;
  top: 0;
  z-index: 5;
  display:flex;
  justify-content: space-between;
  align-items:center;
  padding: 14px 18px;
  background: rgba(11,18,32,.72);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.brand{ display:flex; gap:12px; align-items:center; }
.logo{
  width: 44px; height: 44px;
  border-radius: 14px;
  background: url("./assets/icons/icon-64.png") center/cover no-repeat;
  box-shadow: 0 10px 20px rgba(0,0,0,.25);
}
.title{ font-weight: 900; letter-spacing:.3px; font-size: 18px; }
.subtitle{ font-size: 12px; color: var(--muted); }
.top-actions{ display:flex; gap:10px; align-items:center; }
.wrap{ max-width: 1060px; margin: 0 auto; padding: 18px; }
.h1{ font-size: 28px; font-weight: 950; margin: 10px 0 6px; }
.p{ color: var(--muted); margin: 0 0 14px; line-height: 1.35; }
.grid{ display:grid; gap: 14px; }
@media (min-width: 860px){
  .grid.cols-2{ grid-template-columns: 1fr 1fr; }
  .grid.cols-3{ grid-template-columns: 1fr 1fr 1fr; }
}
.card{
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.card-title{ font-weight: 900; margin-bottom: 4px; }
.card-subtitle{ color: var(--muted); font-size: 13px; margin-bottom: 10px; }
.big-tile{
  display:flex;
  gap: 12px;
  align-items:center;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(15,27,49,.55);
  transition: transform .08s ease, background .2s ease, border .2s ease;
  cursor: pointer;
  user-select:none;
}
.big-tile:hover{ transform: translateY(-1px); background: rgba(15,27,49,.72); }
.big-tile:active{ transform: translateY(0px) scale(.99); }
.big-icon{
  width: 58px; height: 58px;
  border-radius: 18px;
  display:grid; place-items:center;
  background: rgba(59,130,246,.18);
  border: 1px solid rgba(59,130,246,.22);
  font-size: 26px;
}
.big-meta .name{ font-weight: 950; font-size: 18px; margin-bottom: 2px; }
.big-meta .desc{ color: var(--muted); font-size: 13px; }
.badge{
  display:inline-flex; align-items:center; gap:6px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  color: var(--muted);
}
.btn{
  border:0;
  border-radius: 14px;
  padding: 11px 14px;
  font-weight: 800;
  cursor:pointer;
  color: var(--text);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.10);
}
.btn.small{ padding: 9px 12px; border-radius: 12px; font-size: 13px; }
.btn.primary{
  background: linear-gradient(180deg, var(--primary), var(--primary2));
  border: 1px solid rgba(255,255,255,.16);
}
.btn.secondary{
  background: rgba(34,197,94,.14);
  border: 1px solid rgba(34,197,94,.22);
}
.btn.danger{
  background: rgba(239,68,68,.14);
  border: 1px solid rgba(239,68,68,.22);
}
.btn.ghost{
  background: transparent;
  border: 1px solid rgba(255,255,255,.12);
}
.btn:disabled{ opacity:.45; cursor:not-allowed; }
.row{ display:flex; gap:10px; align-items:center; flex-wrap: wrap; }
.label{ display:block; font-size: 12px; color: var(--muted); margin-top: 10px; margin-bottom: 6px; }
.input{
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.18);
  color: var(--text);
  outline: none;
}
.input:focus{ border-color: rgba(59,130,246,.55); box-shadow: 0 0 0 3px rgba(59,130,246,.18); }
.divider{ height:1px; background: rgba(255,255,255,.10); margin: 12px 0; }
.hint{ color: var(--soft); font-size: 12px; margin-top: 10px; }
.modal{
  position: fixed; inset:0;
  display:none; align-items:center; justify-content:center;
  padding: 18px;
  background: rgba(0,0,0,.55);
}
.modal.open{ display:flex; }
.panel{
  width: min(1100px, 100%);
  border-radius: 22px;
  background: rgba(12,22,42,.92);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow);
  padding: 14px;
}
.panel-head{ display:flex; justify-content:space-between; align-items:center; padding: 10px 10px 14px; }
.panel-title{ font-weight: 950; font-size: 18px; }
.panel-subtitle{ color: var(--muted); font-size: 13px; margin-top: 2px; }
.grid2{ display:grid; gap: 14px; }
@media (min-width: 900px){ .grid2{ grid-template-columns: 1fr 1fr; } }

.hero{
  display:grid;
  gap:14px;
  align-items:center;
}
@media (min-width: 980px){
  .hero{ grid-template-columns: 1.1fr .9fr; }
}
.heroArt{
  width:100%;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.heroArt img{ width:100%; display:block; }

.game-stage{ display:grid; gap:14px; }
@media (min-width: 900px){ .game-stage{ grid-template-columns: 320px 1fr; } }
.mascotBox{
  border-radius: 22px; border: 1px solid rgba(255,255,255,.10);
  background: rgba(15,27,49,.50);
  padding: 14px;
  display:flex; flex-direction:column;
  align-items:center; justify-content:center;
  min-height: 260px;
}
.mascotFace{
  width: 140px; height: 140px; border-radius: 44px;
  display:grid; place-items:center;
  font-size: 72px;
  background: rgba(59,130,246,.16);
  border: 1px solid rgba(59,130,246,.20);
  animation: bob 2s ease-in-out infinite;
}
@keyframes bob { 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(-4px);} }
.talking .mascotFace{ animation: talk .28s ease-in-out infinite alternate; }
@keyframes talk{ from{ transform: translateY(0) scale(1.00);} to{ transform: translateY(-2px) scale(1.02);} }
.mascotName{ margin-top: 10px; font-weight: 950; }
.mascotHint{ color: var(--muted); font-size: 13px; text-align:center; margin-top:4px; }
.promptCard{
  border-radius: 22px; border: 1px solid rgba(255,255,255,.10);
  background: rgba(15,27,49,.50);
  padding: 14px;
}
.bigWord{ font-size: 54px; font-weight: 1000; letter-spacing: .5px; margin: 4px 0 6px; }
.sentence{ color: var(--muted); font-size: 18px; line-height: 1.35; margin-bottom: 12px; }
.feedback{
  border-radius: 16px; padding: 10px 12px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.18);
  color: var(--text);
  min-height: 44px;
}
.feedback.good{ border-color: rgba(34,197,94,.25); background: rgba(34,197,94,.10); }
.feedback.warn{ border-color: rgba(59,130,246,.30); background: rgba(59,130,246,.10); }
.feedback.bad{ border-color: rgba(239,68,68,.25); background: rgba(239,68,68,.10); }
.answerRow{ display:flex; gap:10px; align-items:center; margin-top: 12px; flex-wrap: wrap; }
.answerInput{
  flex: 1; min-width: 220px;
  padding: 14px 14px;
  font-size: 20px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.22);
  color: var(--text);
}
.progressLine{ color: var(--muted); font-size: 13px; margin-top: 10px; }
.kbd{
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 10px;
  padding: 2px 8px;
  font-size: 12px;
  color: var(--muted);
}