/* ============================================================
   Language Community — Auth UI (css/auth.css)
   Página de Login e Cadastro com card glassmorphism
   ============================================================ */

.auth-page {
  min-height: 100dvh;
  display: grid;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.auth-shell {
  width: 100%;
  max-width: 420px;
}

/* ---------- Avatar central flutuante ---------- */
.auth-avatar {
  position: relative;
  z-index: 2;
  width: 76px;
  height: 76px;
  margin: 0 auto -38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(150deg, #1b2a52 0%, var(--bg-dark) 70%);
  color: var(--bg-light);
  border: 4px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 12px 26px rgba(11, 21, 38, 0.5);
}

/* ---------- Card principal (glassmorphism) ---------- */
.auth-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.06));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
  padding: 3.25rem 1.75rem 1.75rem;
  color: var(--bg-light);
  text-align: center;
}

.auth-card__title {
  font-size: var(--font-size-xl);
  font-weight: 800;
}

.auth-card__subtitle {
  margin-top: 0.2rem;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.65);
}

/* ---------- Tabs (Login / Cadastro) ---------- */
.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.25rem;
  margin: 1.5rem 0 1.25rem;
  padding: 0.25rem;
  background: var(--surface-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
}

.auth-tabs__btn {
  padding: 0.55rem 0.5rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.7);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.auth-tabs__btn.is-active {
  background-color: var(--accent-gold);
  color: var(--bg-dark);
}

/* ---------- Formulários ---------- */
.auth-form {
  display: none;
  flex-direction: column;
  gap: 0.9rem;
  text-align: left;
}

.auth-form.is-active {
  display: flex;
  animation: auth-in 0.28s ease;
}

@keyframes auth-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Campo com ícone à esquerda em bloco separado */
.field {
  display: flex;
  align-items: stretch;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--bg-dark);
  border: 1.5px solid transparent;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.field:focus-within {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px var(--accent-gold-glow);
}

.field__icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 46px;
  background-color: var(--bg-dark);
  border-right: 1px solid var(--border-subtle);
  color: rgba(255, 255, 255, 0.55);
}

.field__input {
  flex: 1;
  min-width: 0;
  padding: 0.8rem 0.85rem;
  border: none;
  outline: none;
  background: transparent;
  color: var(--bg-light);
  font-size: var(--font-size-base);
}

.field__input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

/* Extras inline (lembrar-me / recuperar senha) */
.auth-extra {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: var(--font-size-sm);
}

.auth-extra label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: rgba(255, 255, 255, 0.75);
  cursor: pointer;
}

.auth-extra input[type="checkbox"] {
  accent-color: var(--accent-gold);
  width: 1em;
  height: 1em;
}

.auth-extra a {
  font-size: inherit;
}

/* ---------- Mensagens de estado ---------- */
.auth-feedback {
  min-height: 1.25rem;
  font-size: var(--font-size-sm);
  text-align: left;
  color: rgba(255, 255, 255, 0.75);
}

.auth-feedback.is-error {
  color: #ff9aa2;
}

.auth-feedback.is-success {
  color: #7ee08f;
}

/* ---------- Botão principal ---------- */
.btn-auth {
  width: 100%;
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius-md);
  background: linear-gradient(92deg, var(--accent-gold), #ffc45c);
  color: var(--bg-dark);
  font-weight: 800;
  font-size: var(--font-size-base);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.btn-auth:hover { opacity: 0.92; }
.btn-auth:active { transform: scale(0.99); }
.btn-auth:disabled { opacity: 0.6; cursor: not-allowed; }

/* ---------- Divisor "ou" ---------- */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1rem 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}

/* ---------- Botão Google ---------- */
.btn-google {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.2rem;
  border-radius: var(--radius-md);
  background: var(--bg-light);
  color: var(--text-primary);
  border: 1px solid var(--surface-gray);
  font-weight: 700;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.btn-google:hover { opacity: 0.9; }
.btn-google:active { transform: scale(0.99); }

.btn-google__icon {
  width: 20px;
  height: 20px;
}

/* Página mínima fora do shell (back link) */
.auth-back {
  display: block;
  text-align: center;
  margin-top: 1rem;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.65);
}

@media (max-width: 420px) {
  .auth-card {
    padding: 3rem 1.25rem 1.5rem;
  }
}