*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:"Hiragino Kaku Gothic ProN",sans-serif;
}

body{
line-height:1.7;
background:#f7f9fc;
color:#333;
}

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


/* header */

.header{
background:#6c8cd5;
padding:15px 0;
position:sticky;
top:0;
z-index:100;
}

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

.logo{
color:#fff;
font-size:24px;
}


/* navigation */

.nav ul{
list-style:none;
display:flex;
gap:20px;
}

.nav a{
color:#fff;
text-decoration:none;
font-weight:bold;
padding:8px 14px;
border-radius:20px;
transition:0.3s;
}

.nav a:hover{
background:#ffd36b;
color:#333;
}

.nav a.active{
  background:#ff7a7a;
  padding:8px 16px;
  border-radius:30px;
  color:#fff;
}

.nav .btn{
background:#ff7aa2;
}

.nav .btn:hover{
background:#ff4d4d;
}


/* hero */

.hero{
background:#fff;
padding:60px 0;
}

.hero-inner{
display:flex;
align-items:center;
gap:40px;
}

.hero-text{
flex:1;
}

.hero-text h2{
font-size:32px;
color:#f0a500;
margin-bottom:20px;
}

.hero-image{
flex:1;
text-align:center;
}

.hero-image img{
width:100%;
max-width:350px;
}


/* content */

.content{
padding:60px 0;
background:#eef3ff;
}

.content h3{
font-size:24px;
margin-bottom:20px;
}


/* footer */

.footer{
background:#333;
color:#fff;
padding:30px 0;
text-align:center;
}


/* hamburger */

.hamburger{
display:none;
flex-direction:column;
gap:5px;
background:none;
border:none;
cursor:pointer;
}

.hamburger span{
width:25px;
height:3px;
background:white;
display:block;
}


/* responsive */

@media(max-width:768px){

.hero-inner{
flex-direction:column;
text-align:center;
}

.hamburger{
display:flex;
}

.nav{
position:absolute;
top:60px;
right:0;
background:#6c8cd5;
width:220px;
display:none;
padding:20px;
box-shadow:0 8px 20px rgba(0,0,0,0.2);
}

.nav ul{
flex-direction:column;
gap:15px;
}

.nav a{
display:block;
}

.nav.active{
display:block;
}
.hero-img{
  width:100%;
  height:auto;
  display:block;
}

}