/* ==========================================================================
   hero.css — #hero
   縦書きキャッチ「その志で、門を開け。」+ 横方向情報カラム
   ========================================================================== */

.opg-hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background: var(--opg-ink);
  color: #fff;
}

.opg-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.opg-hero__bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(1.05);
}
.opg-hero__bg-grade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(0,0,0,0.55) 0%,
    rgba(0,0,0,0.35) 30%,
    rgba(0,0,0,0.5) 70%,
    rgba(0,0,0,0.75) 100%);
}
.opg-hero__bg-vignette {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(0,0,0,0.45), transparent 60%),
    radial-gradient(ellipse at 80% 20%, oklch(70% 0.2 50 / 0.18), transparent 55%);
  pointer-events: none;
}

/* ---------- 縦書き ---------- */
.opg-hero__tategaki {
  position: absolute;
  right: clamp(28px, 6vw, 88px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  display: flex;
  align-items: flex-start;
  gap: 24px;
  max-height: 88vh;
}
.opg-hero__tategaki-main {
  writing-mode: vertical-rl;
  -webkit-writing-mode: vertical-rl;
  font-family: var(--opg-font-ja);
  font-weight: 900;
  font-size: clamp(40px, 7.5vh, 96px);
  line-height: 1.05;
  letter-spacing: 0.04em;
  margin: 0;
  text-shadow: 0 8px 60px rgba(0,0,0,0.5);
  white-space: nowrap;
  word-break: keep-all;
}
.opg-hero__tategaki-main .opg-hero__accent {
  background: var(--opg-grad-rainbow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
.opg-hero__tategaki-sub {
  writing-mode: vertical-rl;
  -webkit-writing-mode: vertical-rl;
  font-family: var(--opg-font-en);
  font-size: 12px;
  letter-spacing: 0.3em;
  font-weight: 700;
  color: rgba(255,255,255,0.7);
  margin-top: 8px;
  white-space: nowrap;
}

/* ---------- 横方向情報 ---------- */
.opg-hero__info {
  position: absolute;
  left: var(--opg-gutter);
  bottom: 130px;
  z-index: 3;
  max-width: clamp(540px, 60vw, 820px);
}
.opg-hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: var(--opg-radius-pill);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.22);
  backdrop-filter: blur(10px);
  font-family: var(--opg-font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  margin-bottom: 28px;
}
.opg-hero__tag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: oklch(85% 0.18 140);
  box-shadow: 0 0 12px oklch(85% 0.18 140);
  animation: opg-pulse 1.8s ease-in-out infinite;
}
@keyframes opg-pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.opg-hero__meta {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 32px;
}
.opg-hero__meta-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--opg-font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}
.opg-hero__meta-label-rule {
  width: 32px;
  height: 1px;
  background: currentColor;
  display: inline-block;
}
.opg-hero__meta-title {
  position: relative;
  margin: 0;
  display: flex;
  align-items: stretch;
  gap: 22px;
  font-family: var(--opg-font-en);
  font-weight: 700;
  font-size: clamp(40px, 6.4vw, 76px);
  line-height: 0.92;
  letter-spacing: -0.045em;
  color: #fff;
  text-shadow: 0 18px 60px rgba(0, 0, 0, 0.55);
  white-space: nowrap;
}
.opg-hero__meta-title-bar {
  flex: 0 0 5px;
  width: 5px;
  border-radius: 6px;
  background: var(--opg-grad-rainbow);
  box-shadow: 0 0 32px oklch(70% 0.18 30 / 0.6);
}
.opg-hero__meta-title-text {
  display: inline-flex;
  align-items: baseline;
  gap: 0.16em;
}
.opg-hero__meta-title-year {
  font-style: italic;
  font-weight: 700;
  letter-spacing: -0.04em;
  background: var(--opg-grad-rainbow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: 18px;
  margin: 0 4px;
}
.opg-hero__meta-jp {
  font-family: var(--opg-font-en);
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  text-transform: none;
  color: #fff;
}

.opg-hero__contest {
  display: inline-block;
  margin: 0 0 18px;
  padding: 0;
  font-family: var(--opg-font-ja);
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1.3;
  color: #fff;
  text-shadow: 0 2px 16px rgba(0,0,0,0.5);
}

.opg-hero__sub {
  font-size: clamp(15px, 1.9vw, 18px);
  line-height: 1.85;
  opacity: 0.9;
  margin: 0 0 28px;
  font-weight: 600;
  max-width: 480px;
  letter-spacing: 0.02em;
}

/* FINAL date callout */
.opg-hero__final {
  display: inline-flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 28px;
  padding: 14px 22px;
  border-radius: var(--opg-radius-md);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.22);
  backdrop-filter: blur(10px);
}
.opg-hero__final-label {
  font-family: var(--opg-font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  background: var(--opg-grad-rainbow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.opg-hero__final-date {
  font-family: var(--opg-font-en);
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1;
}
.opg-hero__final-sep {
  color: rgba(255,255,255,0.5);
  margin: 0 1px;
}
.opg-hero__final-day {
  font-family: var(--opg-font-en);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.7);
}
.opg-hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ---------- FINAL strip (bottom-left) ---------- */
.opg-hero__edition {
  position: absolute;
  left: var(--opg-gutter);
  bottom: 36px;
  z-index: 3;
  display: inline-flex;
  align-items: baseline;
  gap: clamp(10px, 1.8vw, 16px);
  padding: clamp(14px, 2vw, 18px) clamp(18px, 2.8vw, 28px);
  border-radius: var(--opg-radius-md);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.28);
}
.opg-hero__edition-label {
  font-family: var(--opg-font-en);
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 800;
  letter-spacing: 0.2em;
  background: var(--opg-grad-rainbow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.opg-hero__edition-date {
  font-family: var(--opg-font-en);
  font-size: clamp(30px, 5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #fff;
  line-height: 1;
  text-shadow: 0 4px 24px rgba(0,0,0,0.35);
}
.opg-hero__edition-sep {
  color: rgba(255,255,255,0.45);
  margin: 0 1px;
}
.opg-hero__edition-day {
  font-family: var(--opg-font-en);
  font-size: clamp(13px, 1.6vw, 17px);
  font-weight: 700;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.78);
}

.opg-hero__scroll {
  position: absolute;
  right: var(--opg-gutter);
  bottom: 36px;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.7);
  font-family: var(--opg-font-en);
  font-size: 10px;
  letter-spacing: 0.25em;
  font-weight: 700;
}
.opg-hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, #fff);
  animation: opg-scroll-line 2.5s ease-in-out infinite;
  transform-origin: top;
}
@keyframes opg-scroll-line {
  0%, 100% { transform: scaleY(0.3); }
  50% { transform: scaleY(1); }
}

@media (max-width: 880px) {
  .opg-hero__tategaki { right: 18px; gap: 12px; }
  .opg-hero__tategaki-main { font-size: clamp(36px, 11vw, 64px); }
  .opg-hero__info { bottom: 110px; max-width: calc(100% - 110px); }
  .opg-hero__meta-title {
    font-size: clamp(32px, 9vw, 56px);
    gap: 16px;
    white-space: normal;
  }
  .opg-hero__meta-title-bar { flex-basis: 4px; width: 4px; }
  .opg-hero__meta-label { font-size: 10px; letter-spacing: 0.2em; }
}
@media (max-width: 560px) {
  .opg-hero__edition {
    gap: 10px;
    padding: 12px 16px;
  }
  .opg-hero__scroll { display: none; }
  .opg-hero__info { bottom: 90px; }
}