:root {
  color-scheme: dark;
  --bg: #06070d;
  --bg-soft: #10121c;
  --text: #fffaf5;
  --muted: #c9c7d6;
  --line: rgba(255, 255, 255, 0.16);
  --cyan: #00c8ff;
  --green: #42d66f;
  --yellow: #ffd43d;
  --orange: #ff7a1a;
  --pink: #f30090;
  --violet: #8a28ff;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(0, 200, 255, 0.18), transparent 34rem),
    radial-gradient(circle at 88% 14%, rgba(243, 0, 144, 0.17), transparent 32rem),
    linear-gradient(180deg, #07080f 0%, #0c0d15 42%, #05050a 100%);
  color: var(--text);
  font-family: "Arial", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}

body.modal-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 14px clamp(18px, 4vw, 56px);
  background: linear-gradient(180deg, rgba(5, 6, 12, 0.86), rgba(5, 6, 12, 0));
  pointer-events: none;
}

.header-brand,
.nav-links a,
.menu-toggle {
  pointer-events: auto;
}

.header-brand {
  display: grid;
  overflow: hidden;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 0 26px rgba(0, 200, 255, 0.22);
}

.header-brand img {
  width: 88%;
  height: 88%;
  border-radius: 50%;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: clamp(12px, 2.4vw, 34px);
  align-items: center;
  min-height: 44px;
}

.nav-links a {
  position: relative;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-decoration: none;
}

.nav-links a::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, var(--cyan), var(--yellow), var(--pink));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  transform: scaleX(1);
}

.nav-links .nav-ticket {
  color: #ff4545;
}

.nav-links .nav-ticket::after {
  background: #ff4545;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50%;
  background: rgba(5, 6, 12, 0.72);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 3px 0;
  border-radius: 999px;
  background: var(--text);
  transition: transform 180ms ease, opacity 180ms ease;
}

.site-header.is-menu-open .menu-toggle span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.site-header.is-menu-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.is-menu-open .menu-toggle span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.hero {
  position: relative;
  display: grid;
  min-height: 94svh;
  padding: 96px clamp(18px, 5vw, 72px) 72px;
  overflow: hidden;
  isolation: isolate;
  place-items: center;
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: -4;
  content: "";
  background:
    linear-gradient(120deg, rgba(0, 200, 255, 0.12), transparent 22%, rgba(255, 122, 26, 0.13) 50%, transparent 70%, rgba(243, 0, 144, 0.17)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 80px);
}

.hero::after {
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 34%;
  content: "";
  background: linear-gradient(0deg, var(--bg) 5%, transparent);
}

.hero-lights {
  position: absolute;
  inset: 0;
  z-index: -3;
  filter: blur(1px);
  opacity: 0.9;
}

.beam {
  position: absolute;
  width: 34vw;
  min-width: 300px;
  height: 110vh;
  clip-path: polygon(42% 0, 58% 0, 100% 100%, 0 100%);
  mix-blend-mode: screen;
  opacity: 0.28;
}

.beam-blue {
  top: -18vh;
  left: 4vw;
  background: linear-gradient(180deg, var(--cyan), transparent);
  transform: rotate(22deg);
}

.beam-orange {
  top: -24vh;
  left: 39vw;
  background: linear-gradient(180deg, var(--orange), transparent);
  transform: rotate(-8deg);
}

.beam-pink {
  top: -18vh;
  right: -2vw;
  background: linear-gradient(180deg, var(--pink), transparent);
  transform: rotate(-24deg);
}

.hero-ring {
  position: absolute;
  z-index: -2;
  width: min(72vw, 860px);
  aspect-ratio: 1;
  border: 2px solid transparent;
  border-radius: 50%;
  background:
    linear-gradient(var(--bg), var(--bg)) padding-box,
    conic-gradient(from 205deg, var(--cyan), var(--green), var(--yellow), var(--orange), var(--pink), var(--violet), var(--cyan)) border-box;
  opacity: 0.5;
  mask-image: linear-gradient(135deg, black, transparent 73%);
}

.hero-inner {
  display: grid;
  width: min(100%, 1040px);
  place-items: center;
  text-align: center;
}

.hero-kicker,
.eyebrow {
  margin: 0;
  color: var(--yellow);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-kicker {
  color: var(--text);
  text-transform: none;
}

.hero-logo {
  width: min(65vw, 520px);
  margin: 10px 0 22px;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.hero-logo img {
  width: 100%;
  height: auto;
}

.hero-tagline {
  max-width: min(92vw, 760px);
  margin: 0 0 64px;
  color: var(--yellow);
  font-size: clamp(16px, 2.3vw, 28px);
  font-weight: 950;
  line-height: 1.25;
  text-align: center;
  text-shadow: 0 0 18px rgba(255, 212, 61, 0.28);
}

.hero-date {
  margin: 0;
  font-size: clamp(34px, 6.4vw, 78px);
  font-weight: 950;
  line-height: 0.95;
  text-transform: uppercase;
  text-shadow: 0 0 24px rgba(243, 0, 144, 0.45);
}

.hero-place {
  margin: 10px 0 0;
  font-size: clamp(17px, 3.2vw, 38px);
  font-weight: 900;
}

.ticket-button {
  display: inline-grid;
  min-width: 190px;
  min-height: 56px;
  margin-top: 28px;
  padding: 13px 34px;
  border: 2px solid rgba(255, 255, 255, 0.82);
  border-radius: 999px;
  background: #ff2638;
  color: #fff;
  box-shadow: 0 0 30px rgba(255, 38, 56, 0.35);
  font-size: 18px;
  font-weight: 950;
  line-height: 1;
  text-decoration: none;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
  place-items: center;
}

.ticket-button:hover,
.ticket-button:focus-visible {
  border-color: var(--yellow);
  background: var(--yellow);
  color: #111018;
  box-shadow: 0 0 34px rgba(255, 212, 61, 0.5);
  transform: translateY(-3px);
}

.section {
  position: relative;
  display: grid;
  grid-template-columns: minmax(58px, 0.25fr) minmax(0, var(--max)) minmax(18px, 1fr);
  gap: clamp(14px, 3vw, 42px);
  padding: clamp(76px, 10vw, 140px) clamp(18px, 5vw, 64px);
}

.artists-section {
  padding-top: clamp(53px, 7vw, 98px);
}

.section-label {
  color: transparent;
  font-size: clamp(54px, 9vw, 120px);
  font-weight: 950;
  line-height: 0.8;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.25);
}

.section-content {
  grid-column: 2;
}

.section-content.narrow {
  max-width: 900px;
}

.section h2 {
  margin: 8px 0 28px;
  font-size: clamp(34px, 6vw, 78px);
  font-weight: 950;
  line-height: 1.02;
}

.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 760ms ease, transform 760ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.section-content.reveal {
  transition-delay: 80ms;
}

.message-section {
  background:
    linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.025) 50%, transparent),
    radial-gradient(circle at 88% 18%, rgba(255, 212, 61, 0.12), transparent 28rem);
}

.message-section .section-content {
  max-width: 1040px;
}

.message-section h2 {
  font-size: clamp(34px, 5vw, 62px);
  white-space: nowrap;
}

.message-copy {
  max-width: 820px;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 20px);
}

.message-copy p {
  margin: 0 0 1.15em;
}

.message-signature {
  color: var(--text);
  font-weight: 900;
  text-align: right;
}

.section-note {
  max-width: 680px;
  margin: -12px 0 34px;
  color: var(--muted);
}

.artist-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 32px);
}

.artist-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.32);
}

.artist-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  content: "";
  background: linear-gradient(90deg, var(--cyan), var(--yellow), var(--pink));
}

.artist-photo {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.artist-photo img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 220ms ease, filter 220ms ease;
}

.artist-photo:hover img,
.artist-photo:focus-visible img {
  filter: saturate(1.12) contrast(1.04);
  transform: scale(1.035);
}

.artist-body {
  padding: 22px;
}

.artist-number {
  margin: 0 0 6px;
  color: var(--pink);
  font-size: 12px;
  font-weight: 950;
}

.artist-body h3 {
  margin: 0 0 8px;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.05;
}

.artist-body p:last-child {
  min-height: 5.6em;
  margin: 0;
  color: var(--muted);
}

.info-section {
  background:
    linear-gradient(90deg, rgba(0, 200, 255, 0.08), transparent 34%),
    rgba(255, 255, 255, 0.025);
}

.info-list {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}

.info-list div {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.info-list dt {
  color: var(--yellow);
  font-weight: 900;
}

.info-list dd {
  margin: 0;
  color: var(--text);
  font-size: clamp(16px, 2vw, 21px);
  font-weight: 700;
}

.info-list span {
  color: var(--muted);
  font-size: 0.88em;
}

.ticket-note {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.78em;
  font-weight: 700;
}

.venue-media {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(18px, 3vw, 30px);
  margin-top: 34px;
}

.venue-photo,
.venue-map {
  overflow: hidden;
  min-height: 360px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.3);
}

.venue-photo {
  position: relative;
}

.venue-photo img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
}

.venue-photo figcaption {
  position: absolute;
  right: 14px;
  bottom: 10px;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.6);
  color: rgba(255, 255, 255, 0.82);
  font-size: 11px;
  font-weight: 800;
}

.venue-map iframe {
  width: 100%;
  height: 100%;
  min-height: 360px;
  border: 0;
  filter: saturate(1.08) contrast(1.05);
}

.timeline {
  position: relative;
  display: grid;
  gap: 18px;
  max-width: 820px;
  margin: 0;
  padding: 0 0 0 22px;
  list-style: none;
}

.timeline::before {
  position: absolute;
  top: 11px;
  bottom: 11px;
  left: 6px;
  width: 2px;
  content: "";
  background: linear-gradient(180deg, var(--cyan), var(--yellow), var(--pink));
}

.timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
}

.timeline li::before {
  position: absolute;
  top: 50%;
  left: -28px;
  width: 14px;
  height: 14px;
  content: "";
  border: 3px solid var(--bg);
  border-radius: 50%;
  background: var(--yellow);
  transform: translateY(-50%);
}

.timeline time {
  color: var(--cyan);
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 950;
  line-height: 1;
}

.timeline span {
  font-size: clamp(18px, 2.4vw, 30px);
  font-weight: 900;
}

.site-footer {
  display: grid;
  place-items: center;
  padding: 74px 20px 54px;
  text-align: center;
  background: #030408;
}

.site-footer img {
  width: 124px;
  height: 124px;
  margin-bottom: 16px;
  object-fit: contain;
  border-radius: 50%;
  background: #fff;
}

.site-footer p {
  margin: 0;
  font-size: clamp(22px, 4vw, 42px);
  font-weight: 950;
}

.site-footer small {
  color: var(--muted);
  font-weight: 800;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  padding: clamp(16px, 4vw, 48px);
  background: rgba(0, 0, 0, 0.82);
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
  place-items: center;
}

.modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  width: min(1120px, 100%);
  max-height: min(760px, 90svh);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #101118;
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.65);
}

.modal-image {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: contain;
  background: #05050a;
}

.modal-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(24px, 4vw, 48px);
}

.modal-copy h2 {
  margin: 8px 0 18px;
  font-size: clamp(34px, 5vw, 68px);
  line-height: 1;
}

.modal-copy p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 20px);
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 2;
  display: grid;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  color: var(--text);
  cursor: pointer;
  font-size: 34px;
  line-height: 1;
  place-items: center;
}

@media (max-width: 780px) {
  .site-header {
    padding: 10px 14px;
  }

  .header-brand {
    width: 44px;
    height: 44px;
  }

  .header-brand img {
    width: 34px;
    height: 34px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 64px;
    right: 14px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    min-width: 220px;
    min-height: 0;
    gap: 0;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 8px;
    background: rgba(6, 7, 13, 0.94);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.42);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .nav-links a {
    padding: 10px 8px;
    font-size: 13px;
    text-align: right;
  }

  .site-header.is-menu-open .nav-links {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .hero {
    min-height: 92svh;
    padding-top: 88px;
  }

  .hero-logo {
    margin-top: 14px;
    width: min(90vw, 410px);
  }

  .hero-tagline {
    margin-bottom: 56px;
    font-size: 16px;
  }

  .section {
    display: block;
    padding: 74px 18px;
  }

  .artists-section {
    padding-top: 52px;
  }

  .section-label {
    margin-bottom: 18px;
    font-size: 48px;
  }

  .message-section h2 {
    white-space: normal;
  }

  .artist-grid {
    grid-template-columns: 1fr;
  }

  .artist-body p:last-child {
    min-height: 0;
  }

  .info-list div,
  .timeline li,
  .modal-panel,
  .venue-media {
    grid-template-columns: 1fr;
  }

  .info-list div {
    gap: 6px;
  }

  .timeline {
    padding-left: 18px;
  }

  .timeline li {
    gap: 8px;
    padding: 18px;
  }

  .timeline li::before {
    left: -25px;
  }

  .modal-panel {
    overflow: auto;
  }

  .modal-image {
    min-height: 0;
    max-height: 52svh;
  }

  .venue-photo,
  .venue-map,
  .venue-photo img,
  .venue-map iframe {
    min-height: 300px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 460px) {
  .nav-links {
    right: 12px;
    min-width: min(240px, calc(100vw - 24px));
  }

  .hero-date {
    font-size: 34px;
  }
}