:root {
  --bg: #ffffff;
  --bg-alt: #f9f9f9;
  --text: #333333;
  --muted: #666666;
  --brand: #f7c948; /* amarelo principal */
  --brand-dark: #d4a514;
  --brand-contrast: #000000;
  --border: #e0e0e0;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', Roboto, Ubuntu, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a {
  color: var(--brand-dark);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem;
}

.topbar {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar .logo {
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--brand-dark);
  display: flex;
  align-items: center;
  padding: 0.25rem 0;
}
.topbar nav a {
  margin: 0 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
}
.topbar nav a:hover {
  background: var(--bg-alt);
}
.topbar nav .btn {
  background: var(--brand);
  color: var(--brand-contrast);
  border: none;
}
.topbar nav .btn:hover {
  background: var(--brand-dark);
  color: #fff;
}

.hero {
  padding: 4rem 0;
  background: var(--bg-alt);
  text-align: center;
}
.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  border: none;
}
.btn.primary {
  background: var(--brand);
  color: var(--brand-contrast);
}
.btn.primary:hover {
  background: var(--brand-dark);
  color: #fff;
}
.btn.secondary {
  background: var(--bg-alt);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn.secondary:hover {
  background: var(--border);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}
.features article {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}
.features h2 {
  color: var(--brand-dark);
}

.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  margin-top: 3rem;
  padding: 2rem 0;
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: space-between;
}
.footer a {
  color: var(--text);
}
.footer a:hover {
  color: var(--brand-dark);
}
.legal {
  padding-top: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}
@media (max-width: 720px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.prod-img {
  max-width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.prose h1, .prose h2, .prose h3 {
  color: var(--brand-dark);
}

input, textarea {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
}
label {
  font-weight: 500;
}
.feedback {
  margin-top: 1rem;
  font-weight: 500;
  color: #4CAF50;
}
.feedback.error {
  color: #e53935;
}

/* Botão de envio */
#submit-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
#btn-spinner {
  font-size: 1.2rem;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

label.consent span,
fieldset label span {
  flex: 1;                   /* ocupa o espaço restante */
  min-width: 0;              /* permite encolher e quebrar */
  white-space: normal;       /* quebra de linha natural */
  word-break: break-word;    /* evita overflow em palavras longas */
  text-align: left;          /* força alinhamento à esquerda */
}


/* Mensagens de erro inline */
.erro {
  color: #b00020;
  font-size: 0.85rem;
  margin-left: 0.5rem;
}

/* Destaque visual para campos inválidos */
input:invalid, textarea:invalid {
  border: 2px solid #b00020;
  background-color: #fff5f5;
}
input:invalid:focus, textarea:invalid:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(176, 0, 32, 0.3);
}

/* Espaçamento entre elementos do formulário */
form label,
form fieldset {
  margin-bottom: 1rem;
}