@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600&display=swap");

:root {
  /* Cores base */
  --color-background: #1e1e2f;
  --color-surface: #2a2a3d;
  --color-surface-hover: #242436; /* Usado para o fundo do Input */
  --color-border: #3a3a50;

  /* Texto */
  --color-text-primary: #ffffff;
  --color-text-secondary: #b0b3c7;
  --color-text-muted: #8a8fa6;

  /* Ação / Identidade */
  --color-primary: #3a63d0;
  --color-primary-hover: #3358b8;
  --color-primary-active: #2a4c9d;

  /* Destaques */
  --color-accent: #73adce;
  --color-highlight: #a0c4e4;

  /* Estados */
  --color-warning: #f1c40f;
  --color-danger: #e74c3c;
  --color-success: #3498db; /* Azulado/Verde para sucesso no dark mode */

  /* Sombras e profundidade */
  --shadow-elevation-1: 0px 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-elevation-2: 0px 4px 12px rgba(0, 0, 0, 0.4); /* Sombra mais forte para dark mode */
}

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

body {
  font-family: "Poppins", sans-serif;
  background-color: var(--color-background);
  color: var(--color-text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Header --- */
header {
  background: var(--color-surface);
  padding: 1rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-elevation-1);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

header img {
  height: 50px;
}

header nav a {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

header nav a:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-highlight);
}

/* --- Main Layout --- */
main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4rem;
  padding: 3rem 5%;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

.illustration {
  flex: 1;
  max-width: 550px;
  height: auto;
  display: block;
  /* Opcional: Filtro para a imagem não "estourar" no fundo escuro se ela for muito branca */
  filter: brightness(0.9);
}

/* --- Form Container --- */
.form-container {
  flex: 1;
  max-width: 550px;
  background: var(--color-surface);
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: var(--shadow-elevation-2);
  border: 1px solid var(--color-border);
  animation: fadeIn 0.6s ease-out;
}

.form-container h2 {
  font-size: 1.75rem;
  color: var(--color-accent); /* Destaque no título */
  margin-bottom: 2rem;
  text-align: center;
  font-weight: 600;
  letter-spacing: -0.5px;
}

/* --- Inputs e Labels --- */
.form-row {
  display: flex;
  gap: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
  width: 100%;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.input-wrapper {
  position: relative;
  width: 100%;
}

/* Estilo Base do Input */
.form-group input {
  width: 100%;
  padding: 0.9rem 1rem 0.9rem 2.8rem; /* Espaço para ícone */
  font-family: "Poppins", sans-serif;
  font-size: 0.95rem;

  /* Configuração Dark Mode */
  color: var(--color-text-primary);
  background-color: var(
    --color-surface-hover
  ); /* Fundo mais escuro que o card */
  border: 1px solid var(--color-border);

  border-radius: 12px;
  transition: all 0.2s ease;
}

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

/* Ícone dentro do input */
.input-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 1rem;
  transition: color 0.2s ease;
  pointer-events: none;
}

/* Ícone de ver senha */
.toggle-password {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 5px;
  transition: color 0.2s;
}

/* --- Estados de Interação (Focus e Hover) --- */

.form-group input:hover {
  border-color: var(--color-text-secondary);
}

/* Focus: Borda Primária + Brilho Sutil */
.form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: var(--color-surface-hover);
  /* Simulando brilho com a cor primária */
  box-shadow: 0 0 0 1px var(--color-primary);
}

/* Muda a cor do ícone quando o input está focado */
.form-group input:focus + .input-icon,
.input-wrapper:focus-within .input-icon {
  color: var(--color-primary);
}

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

/* --- Validação Visual --- */
.input-error {
  border-color: var(--color-danger) !important;
  box-shadow: 0 0 0 1px var(--color-danger) !important;
}

.input-success {
  border-color: var(--color-success) !important;
  box-shadow: 0 0 0 1px var(--color-success) !important;
}

.error-msg {
  color: var(--color-danger);
  font-size: 0.8rem;
  margin-top: 0.4rem;
  min-height: 1.2em;
  font-weight: 500;
}

/* --- Botão --- */
.btn-submit {
  width: 100%;
  padding: 1rem;
  margin-top: 0.5rem;
  border: none;
  border-radius: 12px;

  background-color: var(--color-primary);
  color: var(--color-text-primary);

  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: var(--shadow-elevation-1);
}

.btn-submit:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(58, 99, 208, 0.4); /* Glow azul no hover */
}

.btn-submit:active {
  transform: scale(0.98);
  background-color: var(--color-primary-active);
}

.btn-submit:disabled {
  background-color: var(--color-surface-hover);
  color: var(--color-text-muted);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  border: 1px solid var(--color-border);
}

.status-msg {
  margin-bottom: 15px;
  font-size: 0.95rem;
  text-align: center;
}

.status-msg.success {
  color: #1e7e34;
}

.status-msg.error {
  color: #c82333;
}

/* --- Responsividade --- */
@media (max-width: 968px) {
  main {
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 2rem;
  }

  .illustration {
    max-width: 300px;
    order: -1;
  }
}

@media (max-width: 600px) {
  .form-container {
    padding: 1.5rem;
  }

  .form-row {
    flex-direction: column;
    gap: 0;
  }

  .btn-submit {
    font-size: 0.9rem;
  }
}

/* Animação suave de entrada */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}