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

html, body {
  height: 100%;
  background: #f7f9fa;
  font-family: 'Montserrat', Arial, sans-serif;
  color: #222;
  font-size: 16px;
}

/* Header e Navbar */
header {
  width: 100%;
  background: #fff;
  border-bottom: 2px solid #f1f1f1;
  position: sticky;
  top: 0;
  z-index: 20;
}

header .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header h1 {
  color: #03a9f4;
  font-size: 2.1rem;
  letter-spacing: 2px;
  font-weight: 800;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
}

nav a {
  text-decoration: none;
  color: #222;
  font-weight: 600;
  font-size: 17px;
  padding: 8px 14px;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s;
}

nav a:hover, nav a.active {
  background: #e3f2fd;
  color: #0288d1;
}

/* Main Layout */
main {
  max-width: 1200px;
  margin: 44px auto 0 auto;
  padding: 0 24px 24px 24px;
}

/* Hero/Destaque */
#destaque {
  background: linear-gradient(92deg, #03a9f4 76%, #80d8ff 100%);
  color: #fff;
  text-align: center;
  border-radius: 18px;
  box-shadow: 0px 3px 24px rgba(3,169,244,0.13);
  padding: 52px 20px;
  margin-bottom: 40px;
}

#destaque h2 {
  font-size: 2.6rem;
  font-weight: 700;
  margin-bottom: 18px;
  line-height: 1.13;
}

#destaque p {
  font-size: 1.3rem;
  margin-bottom: 28px;
}

#destaque a {
  display: inline-block;
  background: #fff;
  color: #03a9f4;
  font-weight: bold;
  padding: 12px 30px;
  margin: 5px 8px 0 0;
  border-radius: 24px;
  box-shadow: 0 2px 10px #03a8f460;
  font-size: 1rem;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

#destaque a:hover {
  background: #e3f2fd;
  color: #0076a5;
}

/* Cards Promocionais ou Seções */
section:not(#destaque) {
  background: #fff;
  border-radius: 14px;
  padding: 36px 28px;
  box-shadow: 0 1px 14px rgba(0,16,59,0.06);
  margin-bottom: 40px;
}

section h2, section h3 {
  margin-bottom: 21px;
  color: #03a9f4;
  font-size: 2rem;
  font-weight: 700;
}

/* Sobre */
#sobre img {
  width: 100%;
  max-width: 450px;
  border-radius: 13px;
  margin: 25px auto 0 auto;
  display: block;
}

#sobre p {
  font-size: 1.15rem;
  line-height: 1.7;
  color: #333;
  margin-bottom: 18px;
}

/* Formulários */
form {
  max-width: 550px;
  margin: 0 auto 22px auto;
}

form label {
  font-weight: 600;
  margin-bottom: 4px;
  display: block;
  color: #222;
  letter-spacing: 1px;
}

form input,
form select {
  width: 100%;
  border-radius: 7px;
  border: 1.5px solid #b6eaff;
  padding: 10px;
  font-size: 16px;
  margin-bottom: 16px;
  background: #ecf8ff;
  color: #222;
  transition: border 0.2s;
}

form input:focus, form select:focus {
  outline: none;
  border-color: #03a9f4;
}

form button, .button, button {
  background: #03a9f4;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 32px;
  font-size: 1.09rem;
  font-weight: bold;
  box-shadow: 0 2px 10px #03a8f455;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.25s, color 0.25s;
}

form button:hover, .button:hover, button:hover {
  background: #0288d1;
  color: #fff;
}

/* Listas de resultados e cards de opções */
ul {
  list-style: none;
  padding: 0;
}

ul li {
  background: #f5fcff;
  border-radius: 9px;
  box-shadow: 0 1px 6px #03a9f410;
  padding: 16px 22px;
  margin-bottom: 15px;
  font-size: 1.05rem;
  font-weight: 500;
  color: #333;
}

/* Checkout */
#checkout #resumo {
  background: #e3f2fd;
  border-radius: 9px;
  padding: 17px 24px;
  margin-top: 28px;
  max-width: 370px;
}

#checkout #resumo p {
  color: #036b93;
  font-size: 1.07rem;
}

#checkout #resumo h3 {
  color: #03a9f4;
  margin-bottom: 17px;
}

/* Footer */
footer {
  width: 100%;
  background: #03a9f4;
  color: #fff;
  text-align: center;
  font-size: 1.03rem;
  font-weight: 500;
  padding: 20px 0 16px 0;
  letter-spacing: 1px;
  border-top: 2px solid #b3e5fc;
  box-shadow: 0 -1px 6px #03a8f455;
  margin-top: 58px;
}

/* Imagem Placeholder */
img {
  display: block;
  margin: 16px auto;
  border-radius: 11px;
  max-width: 100%;
  height: auto;
}