:root {
  --bg: #0b1622;
  --bg-soft: #122030;
  --accent: #2fd4c8;
  --accent2: #ff9e57;
  --text: #f2f6fa;
  --muted: #8aa0b4;
  --line: rgba(255, 255, 255, 0.1);
  --max: 720px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--accent); }

.scroll-hint {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: rgba(11, 22, 34, 0.72);
  border: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  backdrop-filter: blur(8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.scroll-hint.is-hidden { opacity: 0; pointer-events: none; transform: translate(-50%, 8px); }

.hero {
  position: relative;
  min-height: 88vh;
  display: grid;
  place-items: end start;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(11, 22, 34, 0.25) 0%, rgba(11, 22, 34, 0.55) 45%, rgba(11, 22, 34, 0.92) 100%),
    linear-gradient(90deg, rgba(11, 22, 34, 0.55), transparent 55%);
}
.hero__copy {
  position: relative;
  z-index: 1;
  padding: clamp(2rem, 6vw, 4rem);
  max-width: 36rem;
}
.hero__kicker {
  margin: 0 0 0.6rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  font-weight: 600;
}
.hero h1 {
  margin: 0;
  font-size: clamp(2.6rem, 8vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.hero__tag {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 28rem;
}

.band { padding: clamp(3rem, 8vw, 5rem) 1.25rem; }
.intro {
  max-width: var(--max);
  margin: 0 auto 2rem;
  text-align: center;
}
.intro h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  letter-spacing: -0.02em;
}
.intro p {
  margin: 0 auto;
  max-width: 34rem;
  color: var(--muted);
}
.about__box {
  text-align: left;
  max-width: 40rem;
  padding: 1.35rem 1.5rem;
  border-radius: 1rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}
.about__box h2 { margin-bottom: 0.65rem; }
.about__box p { margin: 0; max-width: none; font-size: 1.05rem; color: var(--text); }

.timeline {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: var(--max);
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 0.55rem;
  top: 0.35rem;
  bottom: 0.35rem;
  width: 2px;
  background: linear-gradient(var(--accent), rgba(47, 212, 200, 0.1));
}
.timeline li {
  position: relative;
  padding: 0 0 1.75rem 2.2rem;
}
.timeline li:last-child { padding-bottom: 0; }
.timeline__node {
  position: absolute;
  left: 0.2rem;
  top: 0.35rem;
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(47, 212, 200, 0.12);
}
.timeline h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
}
.timeline p {
  margin: 0;
  color: var(--muted);
}

.atmosphere { background: var(--bg-soft); }
.ba {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.ba figure {
  margin: 0;
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #081018;
}
.ba img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}
.ba figcaption {
  padding: 0.65rem 0.85rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent2);
}

.accordion {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  gap: 0.75rem;
}
.accordion details {
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
}
.accordion summary {
  cursor: pointer;
  list-style: none;
  padding: 1rem 1.15rem;
  font-weight: 600;
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after {
  content: "+";
  float: right;
  color: var(--accent);
  font-weight: 500;
}
.accordion details[open] summary::after { content: "–"; }
.accordion__body {
  padding: 0 1.15rem 1.15rem;
  color: var(--muted);
}
.accordion__body p { margin: 0 0 0.85rem; }
.accordion__body p:last-child { margin-bottom: 0; }
.mail {
  display: inline-block;
  margin-top: 0.25rem;
  padding: 0.65rem 0.95rem;
  border-radius: 999px;
  background: rgba(47, 212, 200, 0.12);
  text-decoration: none;
  color: var(--accent);
  font-weight: 600;
}

.foot {
  padding: 2rem 1.25rem 5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
}

@media (max-width: 640px) {
  .ba { grid-template-columns: 1fr; }
  .hero { min-height: 78vh; }
}