* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    color: #1D1D1B;
    font-size: 16px;
    font-weight: 600;
}

a {
    font-size: 16px;
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

button {
    border: none;
    background: none;
    font: inherit;
}

.container {
    width: 1280px;
    margin: 0 auto;
}

.icon {
    display: inline-block;
    width: 24px;
    height: 24px;
    background-size: contain;
    background-repeat: no-repeat;
}

.header {
    background: #F8FCFE;
    border-bottom: 1px solid #E1F5FE;
    padding: 15px 0;
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    width: 200px;
    /* Шире */
    height: 60px;
    /* Выше */
    background: url('/images/logo.svg') no-repeat center / auto 100%;
    text-indent: -9999px;
}

.nav {
    display: flex;
    gap: 50px;
}

.nav__link {
    color: #2C3E50;
    font-weight: 500;
    transition: color 0.3s;
}

.nav__link:hover {
    color: #1A5276;
}

.header__contacts {
    display: flex;
    align-items: center;
}

.header__phone {
    color: #2C3E50;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.3s;
}

.header__phone:hover {
    color: #1A5276;
}

.icon_phone {
    background-color: #2C3E50;
    mask-image: url('/images/icons/icon_phone.svg');
    mask-size: contain;
    mask-repeat: no-repeat;
}

.header__phone:hover .icon_phone {
    background-color: #1A5276;
}

.callback-btn {
    margin-left: 10px;
    padding: 8px 16px;
    background: #A7E7FE;
    color: #1D1D1B;
    font-weight: 500;
    /* Тоньше */
    font-size: 14px;
    /* Меньше */
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}

.callback-btn:hover {
    background: #8FD8F0;
}