@charset "UTF-8";

:root {
  --bg: #030607;
  --panel: rgba(4, 7, 8, .82);
  --text: #eee8df;
  --muted: #b8afa4;
  --line: rgba(221, 202, 178, .32);
  --red: #c40000;
  --red-bright: #e00000;
  --gold: #c8b095;
  --serif: "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Noto Serif JP", serif;
  --sans: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 15%, rgba(70, 78, 77, .13), transparent 32rem),
    linear-gradient(180deg, #010304 0%, #080c0c 46%, #020505 100%);
  font-family: var(--serif);
  line-height: 1.9;
  letter-spacing: .05em;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background: url("assets/classroom-bg.jpg") center / cover no-repeat;
  filter: grayscale(100%) contrast(1.12);
  opacity: .13;
}
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  opacity: .08;
  background-image:
    radial-gradient(rgba(255,255,255,.45) .6px, transparent .7px);
  background-size: 5px 5px;
  mix-blend-mode: screen;
}

a { color: inherit; }
.join-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 230px;
  min-height: 62px;
  padding: 12px 34px;
  color: #fff;
  text-decoration: none;
  background:
    linear-gradient(135deg, rgba(224,0,0,.98), rgba(117,0,0,.98));
  border: 1px solid rgba(255, 206, 190, .48);
  box-shadow: 0 0 0 1px rgba(0,0,0,.8) inset, 0 10px 35px rgba(0,0,0,.55);
  font-family: var(--serif);
  font-size: 1.12rem;
  letter-spacing: .2em;
  transition: transform .25s, filter .25s, box-shadow .25s;
}
.join-button:hover {
  transform: translateY(-2px);
  filter: brightness(1.15);
  box-shadow: 0 12px 35px rgba(120,0,0,.45);
}
.join-button--top {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 40;
  min-width: 150px;
  min-height: 48px;
  font-size: .95rem;
  backdrop-filter: blur(8px);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(0,0,0,.64), rgba(0,0,0,.78)),
    radial-gradient(ellipse at center, rgba(44,49,47,.28), transparent 65%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0,0,0,.82), transparent 25%, transparent 75%, rgba(0,0,0,.82)),
    linear-gradient(0deg, rgba(0,0,0,.92), transparent 20%, rgba(0,0,0,.5));
}
.hero__inner {
  position: relative;
  z-index: 2;
  width: min(940px, 90vw);
  padding: 90px 0 80px;
  text-align: center;
}
.eyebrow {
  margin: 0 0 18px;
  font-size: clamp(.95rem, 2vw, 1.25rem);
  letter-spacing: .25em;
}
.hero h1 {
  margin: 0;
  font-size: clamp(4rem, 13vw, 9.8rem);
  line-height: .95;
  letter-spacing: .12em;
  font-weight: 500;
  color: #e7e2dc;
  text-shadow: 3px 4px 0 #111, 0 0 28px rgba(255,255,255,.12);
}
.hero__subtitle {
  margin: 24px 0 42px;
  font-size: clamp(1.15rem, 3vw, 1.8rem);
}
.hero__lead {
  max-width: 720px;
  margin: 0 auto;
  padding: 26px clamp(20px, 4vw, 50px);
  border: 1px solid rgba(215, 196, 175, .3);
  background: rgba(0,0,0,.36);
  box-shadow: 0 15px 50px rgba(0,0,0,.35);
}
.hero__lead p { margin: 8px 0; }
.hero__lead span, .hero__date b, .warning { color: var(--red-bright); }
.hero__lead hr {
  border: 0;
  border-top: 1px dotted rgba(230,220,210,.35);
  margin: 22px 0;
}
.hero__date {
  margin-top: 38px;
  text-align: left;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 12px;
}
.hero__date span { font-size: 1.1rem; }
.hero__date strong { font-size: clamp(3.6rem, 8vw, 6.3rem); line-height: 1; font-weight: 500; }
.hero__date b { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 400; }
.hero__place { margin: 4px 0 0; font-size: clamp(1.8rem, 4vw, 2.8rem); }
.hero__address { margin: 0; color: var(--muted); }
.hero__vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 180px 70px #000;
}

.section {
  width: min(1100px, 90vw);
  margin: 0 auto;
  padding: 110px 0;
}
.section-heading {
  text-align: center;
  margin-bottom: 54px;
}
.section-heading span {
  display: block;
  color: var(--red-bright);
  font-family: var(--sans);
  font-size: .75rem;
  letter-spacing: .3em;
  margin-bottom: 8px;
}
.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 500;
  letter-spacing: .14em;
}
.section-heading h2::before,
.section-heading h2::after {
  content: "◆";
  color: var(--red);
  font-size: .55em;
  margin: 0 20px;
  vertical-align: middle;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
  background: rgba(0,0,0,.42);
}
.info-card {
  min-height: 310px;
  padding: 38px 34px;
  border-right: 1px solid var(--line);
}
.info-card:last-child { border-right: 0; }
.info-card__label {
  color: var(--gold);
  margin: 0 0 18px;
  font-size: 1.15rem;
  letter-spacing: .16em;
}
.info-card__large { font-size: 1.1rem; }
.info-card__large strong {
  font-size: 3rem;
  font-weight: 500;
  line-height: 1;
}
.info-card__large em { color: var(--red-bright); font-style: normal; }
.info-card p { margin: 12px 0; }
.info-card small, .muted { color: var(--muted); }
.price-list { list-style: none; padding: 0; margin: 0 0 16px; }
.price-list li {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  padding: 7px 0;
  border-bottom: 1px dotted rgba(255,255,255,.15);
}
.price-list strong { white-space: nowrap; font-weight: 500; }

.story-box {
  position: relative;
  padding: clamp(35px, 6vw, 70px);
  text-align: center;
  border: 1px solid rgba(196,0,0,.8);
  background: linear-gradient(rgba(0,0,0,.76), rgba(0,0,0,.82)), url("assets/classroom-bg.jpg") center / cover;
  box-shadow: inset 0 0 80px rgba(0,0,0,.7);
  font-size: clamp(1rem, 2vw, 1.3rem);
}
.story-box p { margin: 0 0 26px; }
.story-box p:last-child { margin-bottom: 0; }

.cast-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.cast-card {
  text-align: center;
  padding: 42px 25px;
  border-right: 1px solid var(--line);
}
.cast-card:last-child { border-right: 0; }
.cast-card p { margin: 0 0 12px; color: var(--muted); }
.cast-card h3 { margin: 0; font-size: clamp(1.7rem, 4vw, 2.6rem); font-weight: 500; }
.cast-card span { color: var(--gold); }

.venue-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  background: rgba(0,0,0,.45);
}
.venue-box > div { padding: 38px; }
.venue-box > div + div { border-left: 1px solid var(--line); }
.venue-name { font-size: 2.1rem; margin: 0 0 8px; }
.venue-note { color: var(--muted); }

.contact-box {
  text-align: center;
  padding: clamp(40px, 7vw, 70px) 25px;
  border: 1px solid rgba(196,0,0,.75);
  background: rgba(0,0,0,.62);
}
.contact-name { margin: 0 0 10px; }
.phone {
  display: inline-block;
  font-family: var(--sans);
  font-size: clamp(2rem, 6vw, 3.5rem);
  letter-spacing: .08em;
  text-decoration: none;
  color: #fff;
  text-shadow: 0 0 20px rgba(255,255,255,.12);
}
.hours { margin: 0 0 25px; color: var(--muted); }
.contact-note { margin: 25px 0 32px; color: var(--muted); }
.join-button--bottom { min-width: min(320px, 90%); }

footer {
  padding: 55px 20px 75px;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid rgba(255,255,255,.1);
}
footer p { margin: 0 0 5px; }
footer small { font-family: var(--sans); letter-spacing: .12em; }

@media (max-width: 760px) {
  body { line-height: 1.8; }
  .join-button--top {
    top: 12px;
    right: 12px;
    min-width: 116px;
    min-height: 42px;
    padding: 8px 18px;
    font-size: .82rem;
  }
  .hero__inner { padding: 76px 0 60px; }
  .hero h1 { font-size: clamp(3.4rem, 17vw, 2.5rem); }
  .hero__subtitle { margin-bottom: 30px; }
  .hero__lead { padding: 22px 16px; }
  .hero__date { gap: 7px; }
  .hero__date strong { font-size: clamp(3rem, 14vw, 4.8rem); }
  .hero__date span { font-size: .85rem; }
  .hero__date b { font-size: 1.2rem; }

  h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 1.25rem);
  font-weight: 500;
  letter-spacing: .14em;
}

  .section { padding: 75px 0; }
  .section-heading { margin-bottom: 34px; }
  .section-heading h2::before, .section-heading h2::after { margin: 0 8px; }

  .info-grid, .cast-grid, .venue-box { grid-template-columns: 1fr; }
  .info-card {
    min-height: 0;
    padding: 28px 22px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .info-card:last-child { border-bottom: 0; }
  .cast-card {
    padding: 30px 20px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .cast-card:last-child { border-bottom: 0; }
  .venue-box > div { padding: 28px 22px; }
  .venue-box > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .venue-name { font-size: 1.7rem; }
  .story-box { padding: 30px 20px; }
  .story-box p { margin-bottom: 20px; }
  .phone { font-size: clamp(1.7rem, 9vw, 1.5rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .join-button { transition: none; }
}