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

body {
    color: #222;
    background: #f5f7fa;
}

header {
    display: flex;
    justify-content: space-between;
    padding: 24px;
    align-items: center;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
    position: sticky;
    top: 0;
}

.logo {
    height: 52px;
}

nav a {
    margin: 0 16px;
    text-decoration: none;
    color: #333;
    font-weight: 500;
}

nav .cta {
    padding: 10px 16px;
    border-radius: 6px;
    background: #0166FF;
    color: #fff;
}

.hero {
    text-align: center;
    padding: 120px 20px;
    background: linear-gradient(135deg, #0C6E5C, #00A6FF);
    color: white;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
}

.hero p {
    opacity: 0.9;
    margin-top: 12px;
    font-size: 18px;
}

.btn-primary {
    display: inline-block;
    margin-top: 24px;
    padding: 14px 28px;
    background: #fff;
    color: #0064ff;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
}

.section {
    padding: 80px 20px;
    text-align: center;
}

.section.alt {
    background: #eaf1f4;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}

.card {
    background: white;
    padding: 32px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,.05);
    font-size: 20px;
    font-weight: 600;
}

footer {
    text-align: center;
    padding: 30px;
    background: #222;
    color: #fff;
    font-size: 14px;
}