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

body {
font-family: 'Segoe UI', sans-serif;
background: linear-gradient(135deg, #f0f4f8, #e3f2fd);
min-height: 100vh;
padding-top: 80px; /* espaço para o cabeçalho fixo */
}

/* Cabeçalho */
header {
background-color: #070707;
color: white;
position: fixed;
top: 0;
width: 100%;
height: 60px;
padding: 0 20px;
display: flex;
align-items: center;
justify-content: space-between;
z-index: 1000;
box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.logo img {
height: 40px;
object-fit: contain;
}

/* Botão hamburger */
.menu-btn {
background: none;
border: none;
color: white;
font-size: 24px;
cursor: pointer;
display: block;
}

/* Menu oculto ou visível */
.menu {
position: absolute;
top: 60px;
right: 20px;
background-color: #070707;
border-radius: 8px;
box-shadow: 0 2px 5px rgba(0,0,0,0.2);
display: flex;
flex-direction: column;
overflow: hidden;
}
.menu.hidden {
display: none;
}
.menu a {
color: white;
text-decoration: none;
padding: 12px 20px;
border-bottom: 1px solid rgba(255,255,255,0.1);
transition: background-color 0.3s;
}
.menu a:last-child {
border-bottom: none;
}
.menu a:hover,
.menu a.active {
background-color: rgba(255,255,255,0.1);
}

/* Conteúdo principal */
.container {
background-color: white;
max-width: 500px;
margin: auto;
margin-top: 40px;
padding: 40px;
border-radius: 16px;
box-shadow: 0 10px 30px rgba(0,0,0,0.1);
text-align: center;
}

h1 {
color: #2c3e50;
margin-bottom: 10px;
}

p {
color: #555;
margin-bottom: 20px;
}

.btn {
display: block;
background-color: #3498db;
color: white;
padding: 14px;
margin: 10px 0;
border-radius: 8px;
text-decoration: none;
font-weight: bold;
font-size: 16px;
transition: background-color 0.3s ease;
}

.btn:hover {
background-color: #2980b9;
}