:root{
  --bg:#121212;
  --card: rgba(18,24,38,.82);
  --card-strong: rgba(15,20,30,.92);
  --text:#e8eef6;
  --muted:#aab6c5;
  --accent:#7dd3fc;
  --accent2:#a78bfa;
  --line: rgba(255,255,255,.08);
  --shadow: 0 20px 60px rgba(0,0,0,.45);
  --radius:18px;
  --max:880px;
}

*{box-sizing:border-box}
html,body{height:100%}

body{
  margin:0;
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}

a{
  color:var(--accent);
  text-decoration:none;
}
a:hover{
  opacity:.9;
}

#viz{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  z-index:0;
  pointer-events:none;
}

.topbar,
.wrap{
  position:relative;
  z-index:1;
}

.topbar{
  position:sticky;
  top:0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:14px 18px;
  background:linear-gradient(to bottom, rgba(7,11,16,.82), rgba(7,11,16,.42));
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.06);
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
}

.dot{
  width:10px;
  height:10px;
  border-radius:999px;
  background:radial-gradient(circle at 30% 30%, var(--accent), var(--accent2));
  box-shadow:0 0 18px rgba(125,211,252,.55);
}

.name{
  font-weight:700;
  letter-spacing:.4px;
}

.tag{
  font-size:12px;
  color:var(--muted);
  padding:4px 10px;
  border:1px solid rgba(255,255,255,.10);
  border-radius:999px;
}

.nav{
  display:flex;
  gap:14px;
}

.nav a{
  color:var(--text);
  opacity:.85;
}
.nav a:hover{
  opacity:1;
}

.wrap{
  max-width:1100px;
  margin:0 auto;
  padding:28px 18px 72px;
}

/* 上部紹介 */
.hero-intro{
  max-width:var(--max);
  margin:0 auto 34px;
}

.eyebrow{
  margin:0 0 12px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--muted);
}

.hero-intro h1{
  margin:0 0 14px;
  font-size:56px;
  line-height:1.08;
  letter-spacing:.02em;
}

.lead{
  margin:0;
  max-width:48rem;
  color:var(--muted);
  font-size:17px;
  line-height:1.9;
}

.cta{
  display:flex;
  gap:10px;
  margin-top:22px;
  flex-wrap:wrap;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:11px 16px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(15,22,36,.55);
  color:var(--text);
}

.btn.primary{
  border-color:rgba(125,211,252,.35);
  box-shadow:0 0 0 4px rgba(125,211,252,.08);
}

.mini{
  margin-top:16px;
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}

.pill{
  font-size:12px;
  color:var(--muted);
  border:1px solid rgba(255,255,255,.10);
  border-radius:999px;
  padding:4px 10px;
  background:rgba(255,255,255,.04);
}

/* 共通カード */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
}

.section-head{
  max-width:var(--max);
  margin:0 auto 16px;
}

.section-label{
  margin:0 0 8px;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
}

.section-head h2{
  margin:0;
  font-size:28px;
  line-height:1.2;
}

/* メインプレーヤー */
.featured{
  margin-bottom:42px;
}

.featured-player{
  max-width:var(--max);
  margin:0 auto;
  background:var(--card-strong);
}

.featured-cover{
  position:relative;
  aspect-ratio:16 / 9;
  background:linear-gradient(135deg, rgba(125,211,252,.18), rgba(167,139,250,.18));
}

.featured-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  opacity:.96;
}

/*
.featured-cover-fallback{
  position:absolute;
  inset:0;
  background:
    radial-gradient(900px 280px at 20% 20%, rgba(125,211,252,.35), transparent 60%),
    radial-gradient(900px 280px at 80% 80%, rgba(167,139,250,.30), transparent 60%);
  mix-blend-mode:screen;
}
*/

.featured-body{
  padding:22px;
}

.track{
  margin-top:2px;
}

.track .title{
  font-size:30px;
  font-weight:800;
  line-height:1.2;
}

.track .sub{
  margin-top:6px;
  font-size:13px;
  color:var(--muted);
}

.featured-text{
  margin:16px 0 0;
  color:var(--muted);
  line-height:1.85;
}

.controls{
  display:flex;
  gap:10px;
  margin:18px 0 12px;
}

button{
  font:inherit;
  padding:10px 14px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(15,22,36,.55);
  color:var(--text);
  cursor:pointer;
}

button.play{
  border-color:rgba(125,211,252,.35);
}

button.ghost{
  opacity:.85;
}

button:hover{
  opacity:.95;
}

.bar{
  margin-top:8px;
}

input[type="range"]{
  width:100%;
}

.time{
  display:flex;
  justify-content:space-between;
  margin-top:6px;
  font-size:12px;
  color:var(--muted);
}

.row{
  margin-top:12px;
  display:flex;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
}

.vol{
  display:flex;
  gap:10px;
  align-items:center;
  color:var(--muted);
  font-size:12px;
}

.vol input{
  width:150px;
}

.hint{
  color:var(--muted);
  font-size:12px;
  opacity:.85;
}

/* News */
.news-section{
  margin-bottom:42px;
}

.news-list{
  max-width:var(--max);
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:18px;
}

.news-item{
  background:var(--card);
}

.news-image{
  position:relative;
  aspect-ratio:16 / 8;
  background:linear-gradient(135deg, rgba(125,211,252,.14), rgba(167,139,250,.12));
}

.news-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  opacity:.9;
}

/*
.news-image-fallback{
  position:absolute;
  inset:0;
  background:
    radial-gradient(800px 240px at 20% 20%, rgba(125,211,252,.22), transparent 60%),
    radial-gradient(800px 240px at 80% 80%, rgba(167,139,250,.18), transparent 60%);
  mix-blend-mode:screen;
}
*/

.news-body{
  padding:18px;
}

.news-date{
  margin:0 0 8px;
  color:var(--muted);
  font-size:12px;
  letter-spacing:.08em;
}

.news-body h3{
  margin:0 0 10px;
  font-size:22px;
  line-height:1.3;
}

.news-body p:last-child{
  margin:0;
  color:var(--muted);
  line-height:1.8;
}

/* 下部情報 */
.info-section{
  margin-bottom:30px;
}

.info-stack{
  max-width:var(--max);
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:18px;
}

.info-card{
  padding:18px;
}

.info-card h3{
  margin:0 0 12px;
  font-size:22px;
}

.list{
  margin:0;
  padding-left:18px;
  color:var(--muted);
  line-height:1.9;
}

.muted{
  margin:0;
  color:var(--muted);
  line-height:1.8;
}

.contact-line{
  margin:12px 0 0;
}

.foot{
  max-width:var(--max);
  margin:24px auto 0;
  color:var(--muted);
  font-size:12px;
  opacity:.9;
}

/* レスポンシブ */
@media (max-width:900px){
  .hero-intro h1{
    font-size:42px;
  }

  .featured-body{
    padding:18px;
  }

  .track .title{
    font-size:24px;
  }

  .news-body h3{
    font-size:20px;
  }
}

@media (max-width:560px){
  .nav{
    display:none;
  }

  .wrap{
    padding:22px 14px 56px;
  }

  .hero-intro h1{
    font-size:34px;
  }

  .lead{
    font-size:15px;
  }

  .featured-cover{
    aspect-ratio:4 / 3;
  }

  .news-image{
    aspect-ratio:4 / 3;
  }

  .section-head h2{
    font-size:24px;
  }

  .news-body h3,
  .info-card h3{
    font-size:20px;
  }
}