/* ============================================================
   AUTH.CSS — Estilos da Central de Login/Registro Ultra Premium
   ============================================================ */

/* Pontinhos de fundo animados */
.bg-particles {
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 30px 30px;
  z-index: -2;
  pointer-events: none;
  animation: gridMoveAuth 40s linear infinite;
  mask-image: radial-gradient(circle at center, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(circle at center, #000 30%, transparent 100%);
}

@keyframes gridMoveAuth {
  0% { background-position: 0 0; }
  100% { background-position: 30px 30px; }
}

.bg-particles::after {
  content: '';
  position: absolute;
  top: 10%;
  left: 10%;
  right: 10%;
  bottom: 10%;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
}

/* Auth Container Centered */
.auth-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: 24px 16px;
  position: relative;
  z-index: 1;
}

/* Auth Card Glassmorphic */
.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-card);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  animation: fadeInUpAuth 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  position: relative;
}

@keyframes fadeInUpAuth {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Logo */
.auth-logo {
  display: block;
  text-align: center;
  font-size: 26px;
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff, var(--primary-light), var(--accent));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: logoGradient 4s ease infinite;
  margin-bottom: 32px;
}

/* Tabs */
.auth-tabs {
  display: flex;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 4px;
  margin-bottom: 32px;
}

.auth-tab {
  flex: 1;
  padding: 10px;
  border-radius: calc(var(--radius-md) - 4px);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition);
}

.auth-tab:hover {
  color: var(--text-primary);
}

.auth-tab.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 12px var(--primary-glow);
}

/* Forms */
.auth-form {
  display: none;
  flex-direction: column;
  gap: 24px;
}

.auth-form.active {
  display: flex;
}

/* Input Groups com Floating Labels */
.input-group {
  position: relative;
  display: flex;
  flex-direction: column;
}

.input-group input,
.input-group select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 15px;
  transition: var(--transition);
  outline: none;
  min-height: 44px;
}

/* Labels flutuantes */
.input-group label {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  transition: var(--transition);
  pointer-events: none;
  font-size: 14px;
  background: transparent;
  transform-origin: left top;
}

/* Estado ativo do label */
.input-group input:focus ~ label,
.input-group input:not(:placeholder-shown) ~ label,
.input-group select:focus ~ label,
.input-group select:valid ~ label {
  transform: translateY(-38px) scale(0.85);
  color: var(--primary-light);
}

/* Borda Glow no foco */
.input-group input:focus,
.input-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Validações visuais */
.input-group.valid input {
  border-color: var(--success);
}

.input-group.invalid input {
  border-color: var(--danger);
  animation: shakeAuth 0.3s ease-in-out;
}

@keyframes shakeAuth {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

.error-msg {
  font-size: 12px;
  color: var(--danger);
  margin-top: 4px;
  padding-left: 4px;
  min-height: 16px;
}

/* Mostrar/Esconder Senha */
.toggle-password {
  position: absolute;
  right: 16px;
  top: 26px;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 16px;
  z-index: 2;
  cursor: pointer;
}

.toggle-password:hover {
  color: var(--text-primary);
}

/* Força da Senha */
.password-strength {
  display: flex;
  gap: 6px;
  margin-top: 8px;
  padding: 0 4px;
}

.strength-bar {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.strength-bar.weak { background: var(--danger); }
.strength-bar.medium { background: var(--warning); }
.strength-bar.strong { background: var(--success); }

/* Links de recuperação e termos */
.forgot-link {
  align-self: flex-end;
  font-size: 13px;
  color: var(--primary-light);
  transition: var(--transition);
}

.forgot-link:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

.terms-text {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.5;
}

.terms-text a {
  color: var(--primary-light);
  font-weight: 500;
}

.terms-text a:hover {
  text-decoration: underline;
}

.back-link {
  display: block;
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 24px;
  transition: var(--transition);
}

.back-link:hover {
  color: var(--text-primary);
}

/* Loading State */
.btn-loading {
  pointer-events: none;
  color: transparent !important;
  position: relative;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  top: 50%;
  left: 50%;
  margin-top: -10px;
  margin-left: -10px;
  border: 2px solid white;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spinBtn 0.6s linear infinite;
}

@keyframes spinBtn {
  to { transform: rotate(360deg); }
}

/* Label para select estilizado */
.input-group select:invalid ~ .select-label {
  color: var(--text-secondary);
}

.input-group select:valid ~ .select-label {
  transform: translateY(-38px) scale(0.85);
  color: var(--primary-light);
}

/* ============================================================
   MODAL DE SUPORTE
   ============================================================ */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 16px;
}

.modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  padding: 32px;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  position: relative;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.modal.active .modal-content {
  transform: scale(1);
}

.close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 24px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.2s;
  background: none;
  border: none;
}

.close-btn:hover {
  color: var(--text-primary);
}

.modal h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 24px;
}

/* ============================================================
   GOOGLE AUTH
   ============================================================ */
.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-weight: 500;
  padding: 14px;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.btn-google:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
  margin: 16px 0;
}

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

.auth-divider span {
  padding: 0 12px;
}
/* Utility Classes replacing extracted styles */
.support-link {
  display: block;
  text-align: center;
  font-size: 13px;
  color: var(--primary-light);
  margin-top: 16px;
  transition: var(--transition);
}
.support-link:hover {
  text-decoration: underline;
  color: var(--primary-hover);
}
.toast-container {
  margin-top: 16px;
  width: 100%;
}
.modal-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  text-align: center;
}
.support-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.d-none {
  display: none !important;
}