:root {
    --color-primary: #17365d;
    --color-accent: #ffc928;
    --color-background: #ffffff;
    --color-text: #172b4d;
    --color-border: #e3eaf2;
    --container-width: 1200px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-background);
}

.container {
    width: min(100% - 40px, var(--container-width));
    margin-inline: auto;
}

.site-header {
    border-bottom: 1px solid var(--color-border);
    background: #fff;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 88px;
}

.site-logo img {
    display: block;
    max-width: 160px;
    max-height: 65px;
    object-fit: contain;
}

.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.main-nav a,
.site-footer a {
    color: var(--color-primary);
    text-decoration: none;
}

.btn {
    border: 0;
    border-radius: 8px;
    padding: 14px 22px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-primary);
}

.site-footer {
    margin-top: 80px;
    padding: 40px 0;
    background: #f2f6fb;
}

@media (max-width: 900px) {
    .header-inner {
        flex-wrap: wrap;
        padding-block: 16px;
    }

    .main-nav {
        order: 3;
        width: 100%;
        gap: 16px;
    }
}