/* ===========================================================
   World Climbing Series 2027 Tokyo — ティザーサイト
   本公開用のサイトは full-site ブランチにあります
   =========================================================== */

:root {
  --color-bg: #0a0c10;     /* 黒ベース（ロゴは On Dark 版） */
  --color-text: #ffffff;
  color-scheme: dark;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN",
               "Hiragino Sans", "Noto Sans JP", Meiryo, sans-serif;
}

.teaser {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(32px, 6vw, 64px);
  padding: 48px 24px;
  text-align: center;
}

.teaser-logo {
  margin: 0;
  width: min(720px, 100%);
}

.teaser-logo img {
  display: block;
  width: 100%;
  height: auto;
}

.teaser-date {
  margin: 0;
  font-size: clamp(22px, 4.5vw, 40px);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.3;
}

.teaser-dow {
  font-size: 0.5em;
  letter-spacing: 0.1em;
  vertical-align: 0.3em;
}

.teaser-sep {
  margin: 0 0.3em;
}

/* Coming Soon：左右のラインがロゴのホールドの色で流れる */
.teaser-soon {
  --holds: #f5004a, #f9a800, #0a93a6, #1ed98a, #e0a6f5, #8fe0ff, #f5004a;
  display: flex;
  align-items: center;
  gap: 1.2em;
  margin: 0;
  font-size: clamp(14px, 2.4vw, 20px);
  font-weight: 800;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  white-space: nowrap;
}

.teaser-soon::before,
.teaser-soon::after {
  content: "";
  width: clamp(32px, 10vw, 96px);
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--holds));
  background-size: 300% 100%;
  animation: holds-flow 6s linear infinite;
}

/* 字間の末尾ぶんを打ち消して中央に揃える */
.teaser-soon::after { margin-left: -0.45em; }

@keyframes holds-flow {
  from { background-position: 0% 0; }
  to   { background-position: 150% 0; }
}

@media (prefers-reduced-motion: reduce) {
  .teaser-soon::before,
  .teaser-soon::after { animation: none; }
}