@import url('variables.css');

/* ===================================
   RESET E BASE
   =================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background: var(--primary-bg);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  position: relative;
  overflow-x: hidden;
}

/* Efeito de fundo animado */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  animation: rotateBackground 20s linear infinite;
  z-index: 0;
  pointer-events: none;
}

@keyframes rotateBackground {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ===================================
   CONTAINER PRINCIPAL
   =================================== */

.container {
  width: 100%;
  max-width: 480px;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s ease-out;
}

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

/* ===================================
   LOGO E CABEÇALHO
   =================================== */

.logo-container {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  animation: slideDown 1s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.logo {
  font-size: 2.5rem;
  font-weight: var(--font-weight-black);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 0 40px rgba(139, 92, 246, 0.5);
  animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
  from { filter: drop-shadow(0 0 10px rgba(139, 92, 246, 0.5)); }
  to { filter: drop-shadow(0 0 20px rgba(139, 92, 246, 0.8)); }
}

.tagline {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: var(--font-weight-medium);
}

/* ===================================
   CONTAINER DE AUTENTICAÇÃO
   =================================== */

.auth-container {
  background: var(--card-bg);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(139, 92, 246, 0.2);
  backdrop-filter: blur(10px);
  animation: scaleIn 0.6s ease-out 0.2s both;
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ===================================
   TABS
   =================================== */

.auth-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  background: var(--card-bg-light);
  padding: 6px;
  border-radius: var(--border-radius-lg);
}

.tab-btn {
  flex: 1;
  padding: var(--spacing-md);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(139, 92, 246, 0.1);
}

.tab-btn.active {
  background: var(--gradient-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

/* ===================================
   TAB CONTENT
   =================================== */

.tab-content {
  display: none;
  animation: fadeIn 0.4s ease-out;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===================================
   FORMULÁRIOS
   =================================== */

.input-group {
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.input-group input {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--card-bg-light);
  border: 2px solid rgba(139, 92, 246, 0.2);
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font-primary);
  transition: all var(--transition-normal);
}

.input-group input::placeholder {
  color: var(--text-muted);
}

.input-group input:focus {
  outline: none;
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.1), var(--shadow-glow);
  transform: translateY(-2px);
}

/* ===================================
   BOTÕES
   =================================== */

.btn-primary {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.btn-primary:active {
  transform: translateY(-1px);
}

/* ===================================
   WARNING BOX
   =================================== */

.warning-box {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(239, 68, 68, 0.1) 100%);
  border: 2px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.warning-box h3 {
  color: var(--warning);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-bold);
}

.warning-box p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: var(--spacing-xs);
}

.warning-box p:last-child {
  margin-bottom: 0;
}

/* ===================================
   TERMS BOX
   =================================== */

.terms-box {
  margin-bottom: var(--spacing-lg);
}

.terms-box label {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  line-height: 1.5;
}

.terms-box input[type="checkbox"] {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--accent-purple);
}

/* ===================================
   FOOTER INFO
   =================================== */

.footer-info {
  background: var(--card-bg);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-xl);
  border: 1px solid rgba(239, 68, 68, 0.2);
  animation: fadeIn 1s ease-out 0.4s both;
}

.footer-info p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  text-align: center;
}

.footer-info strong {
  color: var(--error-light);
  font-weight: var(--font-weight-bold);
}

/* ===================================
   MAIN FOOTER
   =================================== */

.main-footer {
  text-align: center;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(139, 92, 246, 0.1);
  animation: fadeIn 1s ease-out 0.6s both;
}

.main-footer p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

.main-footer a {
  color: var(--accent-light);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  transition: all var(--transition-fast);
  position: relative;
}

.main-footer a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-normal);
}

.main-footer a:hover::after {
  width: 100%;
}

.main-footer a:hover {
  color: var(--text-primary);
}

/* ===================================
   RESPONSIVIDADE
   =================================== */

@media (max-width: 480px) {
  .logo {
    font-size: 2rem;
  }
  
  .tagline {
    font-size: 1rem;
  }
  
  .auth-container {
    padding: var(--spacing-lg);
  }
  
  .tab-btn {
    font-size: 0.9rem;
    padding: var(--spacing-sm);
  }
}

/* ===================================
   ANIMAÇÕES EXTRAS
   =================================== */

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

.loading {
  animation: pulse 1.5s ease-in-out infinite;
}