* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
}

header {
    background: #b30000;
    color: #fff;
    padding: 15px 0;
}

.logo {
    float: left;
}

nav {
    float: right;
}

nav ul {
    list-style: none;
}

nav ul li {
    display: inline;
    margin-left: 20px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
}

header::after {
    content: "";
    display: block;
    clear: both;
}

.hero {
    background: linear-gradient(to right, #ff4d4d, #cc0000);
    color: white;
    text-align: center;
    padding: 80px 20px;
}

.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 24px;
    background: #d90000;
    color: white;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
}

.cards {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    margin-top: 1.5rem;
}

.card {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

.section {
    padding: 60px 0;
}

.section.light {
    background: #f4f4f4;
}

footer {
    background: #111;
    color: white;
    text-align: center;
    padding: 20px;
}