/* =======================================================
    🎨 VARIÁVEIS CSS - cadastro
   ======================================================= */
:root {
  /* 🎨 Paleta de Cores */
  --color-primary: #ff914d;
  --color-primary-dark: #d76b28;
  --color-secondary: #009688;
  --color-accent: #ffd166;
  --color-bg: #fff8f3;
  --color-neutral-900: #222;
  --color-neutral-600: #555;
  --color-neutral-300: #ccc;
  --color-neutral-100: #fff;

  /* 🧱 Tipografia */
  --font-primary: 'Poppins', Arial, sans-serif;

  /* 🧩 Hierarquia de tamanhos */
  --font-size-xs: 0.8rem;
  --font-size-sm: 1rem;
  --font-size-md: 1.2rem;
  --font-size-lg: 1.6rem;
  --font-size-xl: 2.2rem;
  --font-size-xxl: 3rem;

  /* 📏 Espaçamento modular (8px, 16px, 24px, 32px, 48px, 64px) */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;

  /* 📱 Breakpoints */
  --bp-xs: 480px;
  --bp-sm: 768px;
  --bp-md: 992px;
  --bp-lg: 1200px;
}

/* =======================================================
   ⚙️ ESTILOS GERAIS
   ======================================================= */
body {
  margin: 0;
  font-family: var(--font-primary);
  background-color: var(--color-bg);
  color: var(--color-neutral-900);
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--space-1);
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* =======================================================
   🧭 HEADER
   ======================================================= */
header {
  text-align: center;
  padding: var(--space-5) var(--space-3);
  background-color: var(--color-neutral-100);
  border-bottom: 3px solid var(--color-primary);
}

header img {
  max-width: 180px;
  margin: 0 auto var(--space-3);
}

header h1 {
  font-size: var(--font-size-xxl);
  color: var(--color-primary-dark);
  margin-bottom: var(--space-2);
}

header p {
  font-size: var(--font-size-md);
  color: var(--color-neutral-600);
}

/* =======================================================
   🧾 FORMULÁRIO DE CADASTRO
   ======================================================= */
form {
  background-color: var(--color-neutral-100);
  padding: var(--space-4);
  margin: var(--space-4) auto;
  border-radius: var(--space-2);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  max-width: 700px;
}

fieldset {
  border: 2px solid var(--color-primary);
  border-radius: var(--space-1);
  margin-bottom: var(--space-3);
  padding: var(--space-3);
}

legend {
  color: var(--color-primary-dark);
  font-weight: bold;
  font-size: var(--font-size-lg);
  padding: 0 var(--space-2);
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-1);
  color: var(--color-neutral-900);
}

input,
select {
  width: 100%;
  padding: var(--space-2);
  border: 1px solid var(--color-neutral-300);
  border-radius: var(--space-1);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-3);
  transition: border-color 0.3s, box-shadow 0.3s;
}

input:focus,
select:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 4px var(--color-primary);
}

input:invalid:focus {
  border-color: #ff4d4d;
  box-shadow: 0 0 4px #ff4d4d;
}

/* Checkbox */
input[type="checkbox"] {
  width: auto;
  margin-right: var(--space-1);
}

/* Botão de Envio */
button {
  background-color: var(--color-primary);
  color: white;
  font-weight: bold;
  border: none;
  padding: var(--space-2) var(--space-4);
  border-radius: 10px;
  font-size: var(--font-size-md);
  cursor: pointer;
  display: block;
  margin: var(--space-3) auto;
  transition: background-color 0.3s, transform 0.2s;
}

button:hover {
  background-color: var(--color-secondary);
  transform: scale(1.05);
}

/* =======================================================
   🐶 IMAGENS DE VOLUNTÁRIOS
   ======================================================= */
main img {
  width: 100%;
  max-width: 400px;
  margin: var(--space-3) auto;
  display: block;
  border-radius: var(--space-2);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* =======================================================
   🦶 FOOTER
   ======================================================= */
.site-footer {
  background-color: var(--color-primary-dark);
  color: var(--color-neutral-100);
  text-align: center;
  padding: var(--space-4) 0;
  border-top: 3px solid var(--color-secondary);
  font-size: var(--font-size-sm);
}

.footer-inner address {
  font-style: normal;
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto;
}

.footer-inner p {
  margin-bottom: var(--space-1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
}

.footer-inner a {
  color: var(--color-accent);
  font-weight: 600;
}

.footer-inner a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.footer-inner img {
  width: 24px;
  height: 24px;
}

/* =======================================================
   📱 RESPONSIVIDADE
   ======================================================= */
@media (max-width: var(--bp-sm)) {

  header img {
    max-width: 140px;
  }

  header h1 {
    font-size: var(--font-size-xl);
  }

  form {
    padding: var(--space-3);
  }

  fieldset {
    padding: var(--space-2);
  }

  button {
    width: 100%;
  }

  main img {
    max-width: 90%;
  }

  .footer-inner p {
    flex-direction: column;
    gap: var(--space-1);
  }
}

/* ===== Modo Escuro Total ===== */
body.modo-escuro {
  background-color: #000;  /* fundo preto total */
  color: #f0f0f0;          /* texto branco */
}

/* Inputs e selects no modo escuro */
body.modo-escuro input,
body.modo-escuro select,
body.modo-escuro textarea {
  background-color: #111;
  color: #f0f0f0;
  border: 1px solid #444;
}

/* Fieldsets */
body.modo-escuro fieldset {
  border-color: #444;
}

/* Cabeçalho e rodapé */
body.modo-escuro header,
body.modo-escuro .site-footer {
  background-color: #000;
  color: #fff;
}

/* Links e botões */
body.modo-escuro a {
  color: #f7941d;
}

body.modo-escuro a:hover {
  color: #ffb84d;
}

body.modo-escuro .btn-tema {
  background-color: #222;
  color: #fff;
  border: 1px solid #555;
}

body.modo-escuro .btn-tema:hover {
  background-color: #444;
  color: #f7941d;
}

/* Figuras e legendas */
body.modo-escuro figure {
  background-color: transparent;
}

body.modo-escuro figcaption {
  color: #ccc;
}

/* Listas e aside */
body.modo-escuro ol,
body.modo-escuro ul {
  color: #f0f0f0;
}

/* Títulos e parágrafos */
body.modo-escuro h1,
body.modo-escuro h2,
body.modo-escuro h3,
body.modo-escuro p,
body.modo-escuro li,
body.modo-escuro address {
  color: #f0f0f0;
}