* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, sans-serif; color: #222; background: #f6f7f9; line-height: 1.6; }
header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 2rem; background: #1f3a5f; }
header a { color: #fff; text-decoration: none; }
.logo { font-weight: 700; font-size: 1.2rem; }
nav a { margin-left: 1.5rem; opacity: .85; }
nav a:hover { opacity: 1; }
main { max-width: 900px; margin: 2rem auto; padding: 0 1rem; }
.hero { text-align: center; padding: 2rem 0; }
.hero h1 { font-size: 2.5rem; margin: 0 0 .5rem; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; }
.card { background: #fff; padding: 1rem 1.25rem; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.card h2 { margin-top: 0; font-size: 1.2rem; }
.button { display: inline-block; padding: .6rem 1.2rem; background: #2d6cdf; color: #fff; border: 0; border-radius: 6px; text-decoration: none; font-size: 1rem; cursor: pointer; }
.button:hover { background: #2457b5; }
form { display: grid; gap: 1rem; max-width: 500px; }
label { display: grid; gap: .3rem; font-weight: 600; }
input, textarea { padding: .5rem; border: 1px solid #ccc; border-radius: 6px; font: inherit; }
.messages { padding: 0; list-style: none; }
.messages li { background: #fff; padding: .75rem 1rem; margin-bottom: .5rem; border-radius: 6px; }
.ok { color: #1a7f37; }
.error { color: #c62828; }
footer { text-align: center; padding: 2rem; color: #777; font-size: .9rem; }