:root {
  --paper: #f7f2e8;
  --paper-deep: #efe6d3;
  --ink: #1f1c18;
  --ink-soft: #5a5248;
  --indigo: #1e2f4d;
  --vermilion: #b8432f;
  --line: #d9cdb6;
  --serif: "Zen Old Mincho", "Hiragino Mincho ProN", serif;
  --sans: "Noto Sans JP", "Hiragino Sans", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

/* 見出しは文節の切れ目で改行し、1〜2 文字だけの行を作らない */
h1, h2, h3 { word-break: auto-phrase; text-wrap: balance; }
.ph { display: inline-block; }

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px;
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 242, 232, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
}
.logo {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 20px;
  text-decoration: none;
  white-space: nowrap;
}
.nav { display: flex; gap: 24px; font-size: 14px; }
.nav a { text-decoration: none; color: var(--ink-soft); }
.nav a:hover { color: var(--vermilion); }
.nav a { white-space: nowrap; }
.header-inner .nav { margin-left: auto; }

/* always-visible CTA (latest event + LINE) */
.header-cta { display: flex; gap: 8px; flex-shrink: 0; }
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 38px;
  padding: 0 16px;
  border-radius: 2px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.2s;
}
.cta-event { background: var(--vermilion); color: #fff; }
.cta-event:hover { background: #9c3524; }
.cta-date {
  padding-right: 8px;
  margin-right: 2px;
  border-right: 1px solid rgba(255, 255, 255, 0.4);
  font-family: var(--serif);
  font-size: 14px;
}
.cta-line { background: #06c755; color: #fff; }
.cta-line:hover { background: #05a548; }
.cta-app { background: transparent; color: var(--indigo); box-shadow: inset 0 0 0 1px var(--indigo); }
.cta-app:hover { background: var(--indigo); color: var(--paper); }
.sp-label { display: none; }

/* hero */
.hero {
  background:
    radial-gradient(circle at 85% 20%, rgba(184, 67, 47, 0.10), transparent 40%),
    var(--indigo);
  color: var(--paper);
  padding: 112px 0 96px;
}
.hero-kicker {
  margin: 0 0 16px;
  font-size: 14px;
  letter-spacing: 0.2em;
  color: #d8c9a7;
}
.hero-title {
  margin: 0 0 32px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(32px, 6vw, 60px);
  line-height: 1.4;
  letter-spacing: 0.04em;
}
.hero-lead { margin: 0 0 40px; max-width: 40em; color: #e8e0cf; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-note { margin: 24px 0 0; font-size: 13px; color: #b7ad99; }

/* buttons */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 2px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.btn-primary { background: var(--vermilion); color: #fff; }
.btn-primary:hover { background: #9c3524; }
.btn-ghost { border: 1px solid #d8c9a7; color: var(--paper); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); }
.btn-light { background: var(--paper); color: var(--indigo); }
.btn-light:hover { background: #fff; }
.btn-line { background: #06c755; color: #fff; }
.btn-line:hover { background: #05a548; }

/* sections */
.section { padding: 96px 0; }
.section-tinted { background: var(--paper-deep); }
.section-title {
  margin: 0 0 48px;
  font-family: var(--serif);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
}
.section-title span {
  display: block;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--vermilion);
}
.sub-title {
  margin: 64px 0 24px;
  font-family: var(--serif);
  font-size: 22px;
}

.about-body { font-size: 17px; }
.voices {
  list-style: none;
  margin: 24px 0;
  padding: 0;
  font-family: var(--serif);
  font-size: clamp(18px, 2.6vw, 22px);
  color: var(--indigo);
}

.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 24px 20px;
  font-weight: 500;
  line-height: 1.7;
}
.card-no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--serif);
  font-size: 28px;
  color: var(--vermilion);
}

.checks { list-style: none; margin: 0; padding: 0; }
.checks li {
  position: relative;
  padding: 10px 0 10px 32px;
  border-bottom: 1px dashed var(--line);
}
.checks li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 50%;
  width: 12px;
  height: 12px;
  margin-top: -6px;
  border-radius: 50%;
  background: var(--vermilion);
}

/* event */
.event {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 40px;
  background: #fff;
  border: 1px solid var(--line);
  padding: 40px;
}
.event-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  align-self: start;
  padding: 16px 0;
  background: var(--indigo);
  color: var(--paper);
  font-family: var(--serif);
  line-height: 1.2;
}
.event-month { font-size: 14px; }
.event-day { font-size: 48px; font-weight: 900; }
.event-week { font-size: 14px; }
.event-title { margin: 0 0 4px; font-family: var(--serif); font-size: 26px; }
.event-tagline { margin: 0 0 24px; color: var(--vermilion); font-weight: 500; }
.event-meta { margin: 0 0 24px; }
.event-meta div {
  display: grid;
  grid-template-columns: 4em 1fr;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.event-meta dt { font-weight: 700; color: var(--ink-soft); }
.event-meta dd { margin: 0; }
.event p { margin: 0 0 16px; }
.event .btn { margin-top: 8px; }

/* event page */
.page-hero { background: var(--indigo); color: var(--paper); padding: 64px 0 56px; }
.breadcrumb { margin: 0 0 24px; font-size: 13px; color: #b7ad99; }
.breadcrumb a { color: #d8c9a7; }
.page-title {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.4;
}
.page-lead { margin: 0; font-family: var(--serif); font-size: clamp(16px, 2.4vw, 20px); color: #e8e0cf; }
.prose h2 {
  margin: 56px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--vermilion);
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.5;
}
.prose p { margin: 0 0 16px; }
.flow { list-style: none; margin: 0; padding: 0; }
.flow li { padding: 16px 0; border-bottom: 1px solid var(--line); }
.flow strong { display: block; font-size: 17px; color: var(--indigo); }
.event-detail { display: grid; grid-template-columns: 1fr; gap: 40px; }
.event-side-inner { background: #fff; border: 1px solid var(--line); padding: 24px; }
.event-side .event-meta { margin-bottom: 24px; font-size: 15px; }
.event-side .event-meta div { grid-template-columns: 3.5em 1fr; }
.event-side .event-meta div:first-child { padding-top: 0; }
.event-main > h2:first-child { margin-top: 0; }
.event-main-cta { margin: 40px 0 0; }
.btn-block { display: block; text-align: center; }

@media (min-width: 900px) {
  .event-detail {
    grid-template-columns: minmax(0, 1fr) 320px;
    grid-template-areas: "main side";
    gap: 64px;
    align-items: start;
  }
  .event-main { grid-area: main; }
  .event-side { grid-area: side; position: sticky; top: 88px; }
  .event-main-cta { display: none; }
}
.center { text-align: center; margin: 48px 0 0; }
.small-note { margin-top: 12px; font-size: 13px; color: var(--ink-soft); }

/* event list */
.event-list { list-style: none; margin: 0 0 24px; padding: 0; border-top: 1px solid var(--line); }
.event-row {
  display: grid;
  grid-template-columns: 9em 1fr;
  gap: 24px;
  padding: 24px 8px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: background 0.2s;
}
.event-row:hover { background: #fff; }
.event-row-date { font-family: var(--serif); font-size: 20px; font-weight: 700; color: var(--indigo); line-height: 1.4; }
.event-row-date small { display: block; font-family: var(--sans); font-size: 13px; font-weight: 400; color: var(--ink-soft); }
.event-row-body strong { display: block; font-family: var(--serif); font-size: 20px; }
.event-row-body span { font-size: 14px; color: var(--ink-soft); }
.more-link { margin: 24px 0 0; text-align: right; }
.more-link a { color: var(--vermilion); font-weight: 700; }

/* promo (LINE / SakeSnap) */
.promo-lead { margin: -24px 0 32px; max-width: 46em; font-size: 16px; }
.promo { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.promo-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--line);
  padding: 32px;
}
.promo-card h3 { margin: 0 0 12px; font-family: var(--serif); font-size: 21px; line-height: 1.5; }
.promo-card p { margin: 0 0 24px; }
.promo-card .btn { margin-top: auto; }
.promo-label {
  margin: 0 0 8px !important;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--indigo);
}
.promo-label-line { color: #05a548; }

/* rules */
.rules {
  counter-reset: rule;
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 640px;
}
.rules li {
  counter-increment: rule;
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--serif);
  font-size: 20px;
}
.rules li::before {
  content: counter(rule, cjk-decimal);
  color: var(--vermilion);
  font-size: 16px;
  min-width: 1.5em;
}
.rules-note { margin-top: 24px; font-size: 14px; color: var(--ink-soft); }

/* join */
.join { background: var(--vermilion); color: #fff; text-align: center; }
.join-copy {
  margin: 0 0 32px;
  font-family: var(--serif);
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  line-height: 1.6;
}
.join .btn-line { padding: 18px 36px; font-size: 16px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18); }
.join-sub { margin: 16px 0 0; font-size: 14px; line-height: 1.8; }
/* footer */
.site-footer {
  background: var(--ink);
  color: #c9c0b0;
  padding: 40px 0;
  text-align: center;
}
.site-footer p { margin: 0 0 4px; }
.small { font-size: 12px; color: #8f877a; }

/* responsive */
.pc { display: inline; }

@media (max-width: 960px) {
  .nav { display: none; }
}

@media (max-width: 720px) {
  body { padding-bottom: calc(68px + env(safe-area-inset-bottom)); }
  .header-cta {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
    background: rgba(247, 242, 232, 0.96);
    backdrop-filter: blur(6px);
    border-top: 1px solid var(--line);
    box-shadow: 0 -4px 16px rgba(31, 28, 24, 0.08);
  }
  .site-header { backdrop-filter: none; background: var(--paper); }
  .header-cta { grid-template-columns: 1.15fr 1fr 1fr; gap: 6px; padding-left: 10px; padding-right: 10px; }
  .cta { height: 48px; padding: 0 6px; font-size: 14px; gap: 5px; }
  .cta-date { padding-right: 5px; font-size: 14px; }
  .cta-long, .pc-label { display: none; }
  .sp-label { display: inline; }
  .hero { padding: 72px 0 64px; }
  .pc { display: none; }
  .section { padding: 64px 0; }
  .event { grid-template-columns: 1fr; gap: 24px; padding: 24px 20px; }
  .event-date { flex-direction: row; gap: 8px; justify-content: center; align-items: baseline; }
  .event-day { font-size: 32px; }
  .page-hero { padding: 48px 0 40px; }
  .promo { grid-template-columns: 1fr; }
  .event-row { grid-template-columns: 1fr; gap: 8px; }
  .cards { grid-template-columns: 1fr; gap: 8px; }
  .card { display: flex; align-items: center; gap: 14px; padding: 14px 16px; font-size: 15px; text-wrap: balance; }
  .checks li { text-wrap: balance; }
  .card-no { flex-shrink: 0; width: 1.2em; margin: 0; font-size: 24px; line-height: 1; text-align: center; }
  .promo-card { padding: 24px 20px; }
}