* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: #172033;
    background: #f5f7fa;
    line-height: 1.6;
}

.container {
    width: min(1100px, calc(100% - 40px));
    margin: 0 auto;
}

.header {
    background: #ffffff;
    border-bottom: 1px solid #e6eaf0;
}

.nav {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.4px;
}

nav {
    display: flex;
    gap: 24px;
}

nav a {
    color: #536076;
    text-decoration: none;
}

.hero {
    padding: 110px 0;
    background:
        radial-gradient(circle at 80% 20%, rgba(90, 110, 160, 0.17), transparent 32%),
        linear-gradient(135deg, #edf2f8, #ffffff);
}

.label {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    background: #e8edf5;
    color: #44536c;
    font-size: 13px;
}

h1 {
    max-width: 720px;
    margin: 22px 0 18px;
    font-size: clamp(42px, 7vw, 72px);
    line-height: 1.04;
    letter-spacing: -2.5px;
}

.hero p {
    max-width: 650px;
    color: #637087;
    font-size: 19px;
}

.button {
    display: inline-block;
    margin-top: 20px;
    padding: 13px 22px;
    border-radius: 8px;
    background: #1c2738;
    color: #ffffff;
    text-decoration: none;
}

.section {
    padding: 85px 0;
}

.section h2 {
    margin-top: 0;
    font-size: 34px;
    letter-spacing: -1px;
}

.secondary {
    background: #ffffff;
}

.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.card {
    padding: 18px;
    border: 1px solid #e3e8ef;
    border-radius: 14px;
    background: #ffffff;
}

.card h3 {
    margin-bottom: 4px;
}

.card p,
.section p {
    color: #657188;
}

.preview {
    height: 190px;
    border-radius: 10px;
}

.p1 {
    background: linear-gradient(145deg, #d5deeb, #7b8fa9);
}

.p2 {
    background: linear-gradient(145deg, #e1d8d0, #a48975);
}

.p3 {
    background: linear-gradient(145deg, #dce6dd, #77927c);
}

footer {
    padding: 32px 0;
    border-top: 1px solid #e1e6ed;
    color: #788398;
}

@media (max-width: 760px) {
    nav {
        display: none;
    }

    .cards {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 75px 0;
    }
}