:root {
  --ink: #171411;
  --paper: #fffaf1;
  --paper-soft: #f4efe3;
  --gold: #d6a13d;
  --gold-dark: #9a6b1c;
  --wine: #842d3c;
  --teal: #0d676f;
  --night: #141923;
  --line: rgba(23, 20, 17, 0.14);
  --shadow: 0 24px 70px rgba(20, 25, 35, 0.18);
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.75;
  text-wrap: pretty;
}

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

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.25em;
}

.container {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(20px, 4vw, 48px);
  color: #fff;
  transition: background 220ms ease, box-shadow 220ms ease, padding 220ms ease;
}

.site-header.is-scrolled {
  padding-block: 10px;
  background: rgba(20, 25, 35, 0.9);
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0;
  min-width: 0;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 50%;
  color: var(--gold);
  font-weight: 800;
  font-size: 20px;
}

.brand-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.92);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 22px;
  line-height: 1.1;
}

.brand small {
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 11px;
  line-height: 1.35;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  text-decoration: none;
}

.nav-cta {
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 999px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.44);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: #fff;
}

.hero-bg,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-bg {
  background-image: url("assets/kyoso-hero.jpg");
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
}

.hero-video .hero-bg {
  background: #080b13;
  transform: none;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(8, 10, 14, 0.88), rgba(8, 10, 14, 0.5) 42%, rgba(8, 10, 14, 0.1) 78%),
    linear-gradient(0deg, rgba(8, 10, 14, 0.86), rgba(8, 10, 14, 0.08) 46%);
}

.hero-video .hero-overlay {
  background:
    linear-gradient(0deg, rgba(8, 10, 14, 0.72), rgba(8, 10, 14, 0.24) 58%, rgba(8, 10, 14, 0.62));
}

.hero-video-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-video-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding-top: 84px;
}

.hero-video .hero-inner {
  display: flex;
  align-items: flex-end;
  min-height: 92vh;
  padding-top: 120px;
  padding-bottom: 42px;
}

.hero-panel {
  width: min(100%, 760px);
}

.hero-meta {
  background: #0f1420;
  color: #f3ca79;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-meta p {
  margin: 0;
  padding: 12px 0 14px;
  text-align: center;
  font-weight: 800;
  letter-spacing: 0;
  white-space: nowrap;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--gold);
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(36px, 6.6vw, 76px);
  line-height: 1.12;
  font-weight: 800;
}

.hero-accent-a {
  color: #ffd5e1;
}

.hero-accent-b {
  color: #c9f3ff;
}

.hero-event {
  display: inline-grid;
  gap: 6px;
  margin-top: 18px;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 8px;
  background: rgba(8, 10, 14, 0.4);
}

.hero-event p {
  margin: 0;
  color: #f3ca79;
  font-size: 15px;
  line-height: 1.5;
}

.hero-event strong {
  color: #f3ca79;
}

.hero-hook {
  max-width: 760px;
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.94);
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 800;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-panel .hero-actions {
  margin-top: 16px;
}

.intro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--gold);
  color: #18120a;
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.44);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.intro-band {
  background: var(--night);
  color: #fff;
  padding: 42px 0;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(280px, 1.2fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
}

.intro-grid h2,
.section-heading h2,
.cta-inner h2 {
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.25;
}

.intro-grid p:last-child,
.section-heading p:last-child,
.text-stack p,
.cta-inner p {
  margin: 0;
  color: rgba(23, 20, 17, 0.76);
  font-size: 16px;
}

.intro-grid p:last-child {
  color: rgba(255, 255, 255, 0.82);
}

.section {
  padding: clamp(72px, 9vw, 118px) 0;
}

.quote-lead {
  padding-top: 54px;
  padding-bottom: 32px;
  background: #fffdf8;
}

.lead-quote {
  max-width: 900px;
  margin: 0 auto;
  border-left-color: var(--wine);
}

.lead-quote p {
  font-size: clamp(19px, 2.2vw, 27px);
  line-height: 1.65;
}

.section.muted {
  background: var(--paper-soft);
}

.section.deep {
  background: var(--night);
  color: #fff;
}

.split {
  display: grid;
  grid-template-columns: minmax(240px, 0.75fr) minmax(320px, 1.25fr);
  gap: clamp(36px, 8vw, 92px);
}

.section-heading {
  max-width: 760px;
}

.section-heading.wide {
  max-width: 880px;
  margin-bottom: 36px;
}

.section-heading p:last-child {
  margin-top: 18px;
}

.section-note {
  margin-top: 10px;
  color: rgba(23, 20, 17, 0.62);
  font-size: 14px;
}

.text-stack {
  display: grid;
  gap: 18px;
  max-width: 680px;
}

.about-voices {
  margin-top: 14px;
  display: grid;
  gap: 12px;
}

.about-voices h3 {
  margin: 0 0 2px;
  font-size: 18px;
  color: var(--night);
}

.about-voice-card {
  margin: 0;
  padding: 12px;
  border-left: 3px solid var(--wine);
  background: var(--paper-soft);
  border-radius: 8px;
  display: grid;
  gap: 12px;
}

.about-voice-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 6px;
}

.about-voice-media {
  position: relative;
}

.about-voice-credit {
  position: absolute;
  right: 10px;
  bottom: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  color: #fff;
  background: rgba(0, 0, 0, 0.56);
}

.about-voice-card p {
  margin: 0;
  color: rgba(23, 20, 17, 0.82);
  line-height: 1.8;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  min-height: 250px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffdf8;
  box-shadow: 0 12px 42px rgba(132, 45, 60, 0.07);
}

.feature-number {
  display: inline-block;
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
}

.feature-card h3 {
  margin: 18px 0 10px;
  font-size: 21px;
  line-height: 1.45;
}

.feature-card p {
  margin: 0;
  color: rgba(23, 20, 17, 0.72);
}

.program-list {
  background:
    linear-gradient(90deg, rgba(214, 161, 61, 0.18), transparent 34%),
    #fffdf8;
}

.music-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.music-list li {
  display: grid;
  grid-template-columns: minmax(190px, 0.52fr) 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.music-list strong {
  color: var(--wine);
  white-space: nowrap;
  word-break: keep-all;
}

.music-list span {
  word-break: keep-all;
}

.section.deep .section-heading p:last-child {
  color: rgba(255, 255, 255, 0.78);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.timeline article {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.timeline time {
  color: var(--gold);
  font-weight: 900;
}

.timeline h3 {
  margin: 10px 0;
  font-size: 26px;
}

.timeline p {
  color: rgba(255, 255, 255, 0.78);
}

.timeline a {
  display: inline-block;
  margin-right: 14px;
  margin-top: 4px;
  color: #fff;
  font-weight: 800;
}

.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

blockquote {
  min-height: 180px;
  margin: 0;
  padding: 28px;
  border-left: 5px solid var(--gold);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

blockquote p {
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 17px;
  line-height: 1.7;
}

.voice-label {
  margin: 0 0 10px;
  color: rgba(23, 20, 17, 0.56);
  font-size: 13px;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Noto Sans JP", system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.5;
}

.cta-section {
  padding: clamp(74px, 9vw, 126px) 0;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(132, 45, 60, 0.95), rgba(13, 103, 111, 0.92)),
    var(--wine);
}

.cta-inner {
  max-width: 840px;
}

.cta-inner p {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.84);
}

.cta-section .button.secondary {
  border-color: rgba(255, 255, 255, 0.5);
}

.site-footer {
  padding: 28px 0;
  color: rgba(255, 255, 255, 0.75);
  background: #0d1016;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  font-size: 14px;
}

.footer-inner p {
  margin: 0;
}

.footer-inner div {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

body.hero-red .hero-bg {
  background: #b31233;
  transform: none;
}

body.hero-red .hero-bg::after {
  content: none;
}

body.hero-red .hero-overlay {
  background:
    linear-gradient(90deg, rgba(45, 2, 9, 0.78), rgba(45, 2, 9, 0.52) 45%, rgba(45, 2, 9, 0.16) 78%),
    linear-gradient(0deg, rgba(45, 2, 9, 0.82), rgba(45, 2, 9, 0.1) 48%);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 20px;
    display: grid;
    min-width: min(300px, calc(100vw - 40px));
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    background: rgba(20, 25, 35, 0.96);
    box-shadow: 0 22px 54px rgba(0, 0, 0, 0.24);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

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

  .intro-grid,
  .split,
  .timeline,
  .voice-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .container,
  .hero-inner {
    width: min(calc(100% - 28px), var(--max));
  }

  .site-header {
    padding-inline: 14px;
  }

  .brand small {
    display: none;
  }

  .hero {
    min-height: 86vh;
  }

  .hero-video .hero-inner {
    min-height: 86vh;
    padding-top: 104px;
    padding-bottom: 28px;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(8, 10, 14, 0.9), rgba(8, 10, 14, 0.56)),
      linear-gradient(0deg, rgba(8, 10, 14, 0.9), rgba(8, 10, 14, 0.05) 56%);
  }

  .hero h1 {
    font-size: clamp(33px, 12vw, 52px);
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-meta p {
    white-space: normal;
    line-height: 1.55;
    padding-block: 10px;
  }

  .intro-actions {
    width: 100%;
  }

  .feature-grid,
  .music-list li {
    grid-template-columns: 1fr;
  }

  .music-list strong {
    white-space: normal;
  }

  .feature-card,
  blockquote,
  .timeline article {
    padding: 22px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}