/* ==========================================================================
   SELO "BEM-VINDO AO NÍVEL AVANÇADO" — só no Avançado
   Aparece por cima de tudo assim que a página abre, na primeira vez da
   sessão (ver o script no fim do sessao-aprender.html), some sozinho depois
   de alguns segundos ou no toque, revelando a capa de sempre por baixo.
   Reusa a linguagem visual do selo de título desbloqueado que já aparece
   quando a pessoa passa num desafio (qsMedalPop, dourado) — mesma família
   visual, só que em tela cheia e uma vez só, no começo do curso.
   ========================================================================== */
.qs-unlock {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 32px;
  text-align: center;
  background:
    radial-gradient(ellipse 70% 60% at 50% 38%, rgba(184, 206, 79, 0.16) 0%, transparent 60%),
    linear-gradient(165deg, #5C1A0C 0%, #3D1208 60%, #2A0C05 100%);
  cursor: pointer;
  animation: qsUnlockIn 0.5s ease both;
}
.qs-unlock[hidden] { display: none !important; }
.qs-unlock.is-leaving { animation: qsUnlockOut 0.55s ease both; pointer-events: none; }

.qs-unlock-badge {
  width: 128px;
  height: 128px;
  margin-bottom: 6px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, #fff 0%, transparent 30%),
    linear-gradient(145deg, #D0E07A, #9AAF3A 55%, #FF5E32 130%);
  box-shadow:
    0 0 0 10px rgba(184, 206, 79, 0.16),
    0 18px 40px rgba(0, 0, 0, 0.45);
  animation: qsUnlockBadgePop 0.8s cubic-bezier(0.2, 1.4, 0.4, 1) 0.15s both,
             qsUnlockBadgeGlow 2.2s ease-in-out 1s infinite;
}
.qs-unlock-badge-face {
  font-size: 3.6rem;
  line-height: 1;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}
.qs-unlock-tag {
  font-family: var(--qs-font-h, 'Montserrat', sans-serif);
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #B8CE4F;
  opacity: 0;
  animation: qsUnlockFadeUp 0.5s ease 0.55s both;
}
.qs-unlock-title {
  font-family: var(--qs-font-h, 'Montserrat', sans-serif);
  font-weight: 900;
  font-size: clamp(1.7rem, 5vw, 2.6rem);
  line-height: 1.12;
  color: #fdf8ea;
  margin: 4px 0 2px;
  opacity: 0;
  animation: qsUnlockFadeUp 0.55s ease 0.68s both;
}
.qs-unlock-sub {
  font-family: var(--qs-font-b, 'Open Sans', sans-serif);
  font-weight: 600;
  font-size: 1rem;
  color: #FFD4C4;
  max-width: 46ch;
  margin: 0 0 20px;
  opacity: 0;
  animation: qsUnlockFadeUp 0.55s ease 0.85s both;
}
.qs-unlock-skip {
  font-family: var(--qs-font-h, 'Montserrat', sans-serif);
  font-weight: 700;
  font-size: 0.85rem;
  color: rgba(253, 248, 234, 0.65);
  background: transparent;
  border: 1.5px solid rgba(184, 206, 79, 0.4);
  border-radius: 999px;
  padding: 10px 22px;
  cursor: pointer;
  opacity: 0;
  animation: qsUnlockFadeUp 0.55s ease 1.05s both;
}
.qs-unlock-skip:hover { border-color: #B8CE4F; color: #fdf8ea; }

@keyframes qsUnlockIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes qsUnlockOut { to { opacity: 0; } }
@keyframes qsUnlockBadgePop {
  from { transform: scale(0.4) rotate(-14deg); opacity: 0; }
  70%  { transform: scale(1.12) rotate(4deg); opacity: 1; }
  to   { transform: scale(1) rotate(0); opacity: 1; }
}
@keyframes qsUnlockBadgeGlow {
  0%, 100% { box-shadow: 0 0 0 10px rgba(184, 206, 79, 0.16), 0 18px 40px rgba(0, 0, 0, 0.45); }
  50%      { box-shadow: 0 0 0 16px rgba(184, 206, 79, 0.26), 0 18px 44px rgba(0, 0, 0, 0.5); }
}
@keyframes qsUnlockFadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 599px) {
  .qs-unlock-badge { width: 104px; height: 104px; }
  .qs-unlock-badge-face { font-size: 3rem; }
}
@media (prefers-reduced-motion: reduce) {
  .qs-unlock, .qs-unlock-badge, .qs-unlock-tag, .qs-unlock-title, .qs-unlock-sub, .qs-unlock-skip {
    animation: none !important;
    opacity: 1;
    transform: none;
  }
}