<!DOCTYPE html>
<html lang="pt-br">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Conteúdo Central</title>
<style>
:root {
--bg: #f6f7fb;
--fg: #0f172a;
--muted: #475569;
--card: #ffffff;
--ring: rgba(2, 132, 199, 0.3);
--primary: #0ea5e9;
}
* { box-sizing: border-box; }
html, body {
height: 100%;
margin: 0;
}
body {
font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
color: var(--fg);
background: radial-gradient(60rem 60rem at 10% 10%, #ffffff, var(--bg));
display: grid;
place-items: center; /* Centraliza vertical e horizontalmente */
padding: 16px;
}
.card {
width: min(720px, 100%);
background: var(--card);
border-radius: 16px;
padding: clamp(20px, 3.5vw, 36px);
box-shadow:
0 1px 2px rgba(0,0,0,0.04),
0 8px 24px rgba(15, 23, 42, 0.08);
border: 1px solid rgba(15, 23, 42, 0.06);
}
.eyebrow {
display: inline-block;
font-size: 0.8rem;
letter-spacing: 0.08em;
text-transform: uppercase;
color: var(--muted);
margin-bottom: 8px;
}
h1 {
margin: 0 0 8px;
font-size: clamp(1.5rem, 3.5vw, 2rem);
line-height: 1.2;
}
p {
margin: 0 0 20px;
color: var(--muted);
font-size: clamp(0.95rem, 2.6vw, 1rem);
line-height: 1.7;
}
.actions {
display: flex;
gap: 12px;
flex-wrap: wrap;
}
.btn {
appearance: none;
border: 0;
padding: 12px 16px;
border-radius: 999px;
font-weight: 600;
cursor: pointer;
transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
}
.btn.primary {
background: var(--primary);
color: #fff;
box-shadow: 0 6px 16px rgba(14,165,233,0.35);
}
.btn.primary:hover { transform: translateY(-1px); }
.btn.primary:active { transform: translateY(0); }
.btn.ghost {
background: transparent;
color: var(--fg);
border: 1px solid rgba(15, 23, 42, 0.12);
}
.btn:focus-visible {
outline: none;
box-shadow: 0 0 0 6px var(--ring);
}
.meta {
margin-top: 16px;
font-size: 0.9rem;
color: var(--muted);
}
/* Respeita redução de movimento do usuário */
@media (prefers-reduced-motion: reduce) {
.btn { transition: none; }
}
</style>
</head>
<body>
<main class="card" role="main" aria-labelledby="titulo">
<span class="eyebrow">Centro da página</span>
<h1 id="titulo">Um conteúdo central simples</h1>
<p>
Este é um bloco centralizado e responsivo para usar como ponto de partida.
Você pode colocar aqui textos, formulários, imagens ou qualquer outro conteúdo.
</p>
<div class="actions">
<button class="btn primary" type="button">Ação principal</button>
<button class="btn ghost" type="button">Saber mais</button>
</div>
<p class="meta">Dica: ajuste cores e espaçamentos conforme a identidade do seu projeto.</p>
</main>
</body>
</html>
