body {
    margin: 0;
    font-family: 'Noto Sans KR', sans-serif;
    background-color: #0d0d0d;
    line-height: 1.6;
}
section {
    padding: 80px 20px;
    text-align: center;
    color: #f0f0f0;
}
h1, h2, h3 {
    margin-bottom: 20px;
}
.hero {
	position: relative;
    height: 100vh;
}
.hero_elem {
	position: absolute;
    width: 100%;
    left: 0;
    top: 130px;
    right: 0;
    bottom: 0;
    background-color: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6));
    background-size: cover;
    background-position: center;
}
.hero_center{
    position: absolute;
    text-align: center;
    width: 100%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.hero h1 {
    font-size: 2.5rem;
    color: #00ff8c;
    text-shadow: 0 0 10px #00ff8c;
}
.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 24px;
    background: #00ff8c;
    color: #0d0d0d;
    font-weight: bold;
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.3s;
}
.btn:hover {
    background: #00cc70;
}
.novel_btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 24px;
    background: #00ff8c;
    color: #0d0d0d;
    font-weight: bold;
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.3s;
}
.novel_btn:hover {
    background: #00cc70;
}
.dark {
    background: #102027;
}
.light {
    background: #00796b;
}
.action-list {
    list-style: none;
    padding: 0;
    max-width: 500px;
    margin: 0 auto;
}
.action-list li {
    background: rgba(0,0,0,0.4);
    margin: 10px 0;
    padding: 15px;
    border-radius: 10px;
    font-size: 1.1rem;
}
.progress-container {
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    margin: 30px auto;
    max-width: 500px;
    height: 30px;
    overflow: hidden;
}
.progress-bar {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #00ff8c, #00cc70);
    text-align: right;
    padding-right: 10px;
    line-height: 30px;
    color: #0d0d0d;
    font-weight: bold;
    border-radius: 20px;
    transition: width 1.5s ease;
}