:root{
    --black:#111111;
    --gold:#d4af37;
    --white:#ffffff;
    --gray:#f5f5f5;
}

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

body{
    font-family:"Noto Sans JP",sans-serif;
    background:#fff;
    color:#333;
    line-height:1.8;
}

header{
    background:var(--black);
    color:var(--white);
    padding:20px 8%;
    position:sticky;
    top:0;
    z-index:999;
}

.logo{
    font-size:32px;
    font-weight:700;
    color:var(--gold);
}

.hero{
    background:linear-gradient(rgba(0,0,0,.6),rgba(0,0,0,.6)),
    url(images/hero.jpg) center/cover;
    height:90vh;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    color:#fff;
}

.hero h1{
    font-size:56px;
    margin-bottom:20px;
}

.hero p{
    font-size:20px;
    margin-bottom:40px;
}

.btn{
    display:inline-block;
    padding:15px 40px;
    background:var(--gold);
    color:#111;
    text-decoration:none;
    border-radius:50px;
    font-weight:bold;
    transition:.3s;
}

.btn:hover{
    transform:translateY(-3px);
    background:#f2c94c;
}

.section{
    padding:80px 8%;
}

.card{
    background:#fff;
    border-radius:15px;
    padding:30px;
    box-shadow:0 10px 30px rgba(0,0,0,.1);
    transition:.3s;
}

.card:hover{
    transform:translateY(-10px);
}

footer{
    background:#111;
    color:#fff;
    text-align:center;
    padding:30px;
}