/* ===== 基本 ===== */
:root {
  --green: #4ea72e;
  --pink: #d86ecc;
  --red: #c00000;
  --blue: #46b1e1;
  --orange: #e97132;
  --brand: #0a49a8;
  --text: #333;
  --bg: #fffaf0;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "M PLUS Rounded 1c", "Hiragino Maru Gothic ProN", "Meiryo", sans-serif;
  font-weight: 500;
  color: var(--text);
  line-height: 1.8;
  background:
    repeating-linear-gradient(-45deg, #fde9c2 0 18px, #fff3dc 18px 36px);
}

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

a { color: var(--brand); }

.sp { display: none; }

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 0 40px;
  background: #fff;
  box-shadow: 0 0 24px rgba(160, 110, 40, .15);
}

/* ===== ヘッダー ===== */
.site-header {
  background: #fff;
  border-bottom: 4px solid var(--brand);
}
.site-header .inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.logo {
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--brand);
  text-decoration: none;
  letter-spacing: .05em;
}
.header-sub { font-size: .9rem; color: #777; }

/* ===== タイトル ===== */
.title-area { padding: 24px 24px 8px; }
.meta { margin: 0 0 8px; display: flex; align-items: center; gap: 10px; font-size: .9rem; }
.badge {
  background: var(--brand);
  color: #fff;
  padding: 2px 10px;
  border-radius: 4px;
  font-size: .8rem;
}
.meta time { font-weight: 800; }
h1 {
  margin: 0;
  font-size: 1.6rem;
  line-height: 1.5;
  color: var(--brand);
  border-left: 8px solid var(--orange);
  padding-left: 12px;
}

/* ===== メインビジュアル ===== */
.hero { padding: 16px 24px 8px; text-align: center; }
.hero img { margin: 0 auto 20px; border-radius: 12px; }
.catch { margin: 0; font-size: 1.15rem; font-weight: 800; }
.c-blue { color: #3498db; }
.c-pink { color: #ff33ff; }
.c-orange { color: #ff9900; }

/* ===== もくじ ===== */
.index { padding: 32px 24px 16px; }
.index-title {
  margin: 0 0 16px;
  font-size: 2.2rem;
  font-style: italic;
  font-weight: 800;
  color: #e8363e;
  letter-spacing: .03em;
}
.index-title span { font-size: 1.3rem; font-style: normal; margin-left: 6px; }
.index-btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  padding: 14px 22px;
  border-radius: 12px;
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform .15s, filter .15s;
}
.index-btn span { color: #ffff00; font-size: 1.1rem; letter-spacing: .05em; }
.index-btn:hover { transform: translateY(-2px); filter: brightness(1.08); }
.index-btn.green  { background: var(--green); }
.index-btn.pink   { background: var(--pink); }
.index-btn.red    { background: var(--red); }
.index-btn.blue   { background: var(--blue); }
.index-btn.orange { background: var(--orange); }

/* ===== 各イベント ===== */
.event { --c: var(--green); padding: 56px 24px 8px; scroll-margin-top: 8px; }
.event.green  { --c: var(--green); }
.event.pink   { --c: var(--pink); }
.event.red    { --c: var(--red); }
.event.blue   { --c: var(--blue); }
.event.orange { --c: var(--orange); }

/* 見出し:上下のドット罫 */
.event-title {
  margin: 0 0 20px;
  padding: 26px 8px;
  text-align: center;
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1.4;
  color: var(--c);
  background:
    radial-gradient(circle, var(--c) 0 5px, transparent 5.5px) top / 22px 14px repeat-x,
    radial-gradient(circle, var(--c) 0 5px, transparent 5.5px) bottom / 22px 14px repeat-x;
}

.limited {
  margin: 0 0 4px;
  text-align: center;
  font-size: 1.6rem;
  font-weight: 800;
  color: #ff0000;
}
.limited span { background: #ffff00; padding: 0 4px; }

.event img { margin: 0 auto 20px; border-radius: 10px; }

.lead p { margin: 0 0 1em; font-weight: 800; font-size: 1.02rem; }
.lead .lead-strong { color: #ff0000; font-size: 1.1rem; }

/* 開催情報 */
.info {
  display: grid;
  grid-template-columns: 7.5em 1fr;
  gap: 10px 16px;
  margin: 8px 0 12px;
  padding: 20px;
  background: color-mix(in srgb, var(--c) 8%, #fff);
  border-radius: 10px;
  border: 2px solid color-mix(in srgb, var(--c) 35%, #fff);
}
.info dt {
  align-self: start;
  background: var(--c);
  color: #fff;
  text-align: center;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: .2em;
}
.info dd { margin: 0; }
.info small { font-size: .85rem; color: #555; }
.info small.block { display: block; margin-top: 6px; line-height: 1.7; }
.red-text { color: #ff0000 !important; }

.notes { list-style: none; margin: 0; padding: 0; font-size: .88rem; color: #555; }

/* ===== 締め ===== */
.closing { padding: 48px 24px 16px; text-align: center; font-weight: 800; font-size: 1.05rem; }
.leaf { font-size: 2rem; margin: 0 0 16px; }
.official {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 24px;
  border: 2px solid var(--brand);
  border-radius: 999px;
  text-decoration: none;
  font-size: .95rem;
}
.official:hover { background: var(--brand); color: #fff; }

.to-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--orange);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .25);
}

/* ===== フッター ===== */
.site-footer {
  background: var(--brand);
  color: #fff;
  text-align: center;
  padding: 28px 16px 20px;
}
.site-footer a { color: #fff; }
.footer-logo { margin: 0 0 8px; font-size: 1.3rem; font-weight: 800; }
.site-footer address { font-style: normal; font-size: .9rem; }
.copy { margin: 12px 0 0; font-size: .75rem; opacity: .8; }

/* ===== スマホ ===== */
@media (max-width: 600px) {
  .sp { display: inline; }
  .title-area, .hero, .index, .event, .closing { padding-left: 16px; padding-right: 16px; }
  h1 { font-size: 1.3rem; }
  .catch { font-size: 1.02rem; }
  .index-title { font-size: 1.8rem; }
  .index-btn { font-size: 1.05rem; padding: 12px 16px; }
  .index-btn span { font-size: .9rem; }
  .event { padding-top: 44px; }
  .event-title { font-size: 1.45rem; padding: 22px 4px; }
  .limited { font-size: 1.3rem; }
  .info { grid-template-columns: 1fr; gap: 4px; padding: 16px; }
  .info dt { justify-self: start; padding: 2px 14px; }
  .info dd { margin-bottom: 10px; }
}