/* Tokens e Variáveis CSS (cert-ninja Design System) */
:root {
  /* Light Mode */
  --background: 210 40% 97%;
  --card: 0 0% 100%;
  --muted: 210 40% 90%;
  --muted-foreground: 215 16% 47%;
  --foreground: 222 47% 11%;
  
  /* Brand Accent & States */
  --red-500: 0 84% 60%;
  --red-600: 0 72% 51%;
  --destructive: 0 84% 60%; /* Mesma matiz principal, mas logicamente separada conforme regras */
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Dark Mode (Navy Basis) */
    --background: 221 39% 11%;
    --card: 221 39% 11%; /* Todas as superfícies compartilham o mesmo valor no dark */
    --muted: 215 24% 39%;
    --muted-foreground: 215 20% 75%;
    --foreground: 210 40% 98%;
  }
}

/* Reset e Layout Base */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

/* Blobs Decorativos */
.pointer-events-none { pointer-events: none; }
.absolute { position: absolute; }
.inset-0 { inset: 0; }
.blobs-bg {
  background: radial-gradient(ellipse at top right, rgba(239,68,68,0.06), transparent 40%),
              radial-gradient(ellipse at bottom left, rgba(59,130,246,0.06), transparent 40%);
  z-index: -1;
}

/* Content Container */
#content {
  width: 100%;
  max-width: 440px;
  padding: 1.5rem;
  z-index: 1;
}

/* Tipografia e Tokens de Texto */
.text-foreground { color: hsl(var(--foreground)); }
.text-muted-foreground { color: hsl(var(--muted-foreground)); }
.text-center { text-align: center; }
h2 { margin: 0 0 0.5rem 0; font-size: 1.25rem; font-weight: 600; }
p { margin: 0; font-size: 0.875rem; line-height: 1.5; }

/* Hierarquia de Superfície: Cards */
.card {
  background-color: hsl(var(--card));
  padding: 2rem;
  border-radius: 0.75rem;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  border: 1px solid hsl(var(--muted) / 0.5);
}

@media (prefers-color-scheme: dark) {
  .card {
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.4);
    border: 1px solid hsl(var(--muted) / 0.3);
  }
}

/* Formulários */
.form-layout {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: hsl(var(--foreground));
}

.input-field {
  background-color: hsl(var(--muted) / 0.3);
  border: 1px solid hsl(var(--muted));
  padding: 0.625rem 0.75rem;
  border-radius: 0.5rem;
  color: hsl(var(--foreground));
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s;
}

.input-field:focus {
  border-color: hsl(var(--red-500) / 0.4);
}

.input-field:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: hsl(var(--muted) / 0.5);
}

/* Botões */
.btn-primary {
  background-color: hsl(var(--red-500));
  color: white;
  border: none;
  padding: 0.625rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
  text-align: center;
}

.btn-primary:hover:not(:disabled) {
  background-color: hsl(var(--red-600));
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  border: 1px solid hsl(var(--muted));
  color: hsl(var(--foreground));
  padding: 0.625rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-outline:hover {
  border-color: hsl(var(--red-500) / 0.2);
  background-color: hsl(var(--muted) / 0.3);
}

/* Identidade Visual: Padrão de Ícone */
.icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  background-color: hsla(var(--red-500), 0.1); /* bg-red-500/10 */
  padding: 0.5rem; /* p-2 */
  color: hsl(var(--red-500)); /* text-red-500 */
  margin-bottom: 1rem;
}

.icon-wrapper svg {
  height: 1.25rem; /* h-5 */
  width: 1.25rem;  /* w-5 */
}

/* Estados de Erro (NÃO usar brand red) */
.error-box {
  background-color: hsla(var(--destructive), 0.1);
  color: hsl(var(--destructive));
  border: 1px solid hsla(var(--destructive), 0.4);
  padding: 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
}