:root {
  --bg: #050405;
  --ink: #fff;
  --muted: #d7c4cd;
  --pink: #ff4d94;
  --pink-soft: #ff7bad;
  --pink-deep: #e0367c;
  --glow: rgba(255, 77, 148, 0.45);
  --banner: rgba(0, 0, 0, 0.82);
  --font: "M PLUS Rounded 1c", "Hiragino Sans", "Noto Sans JP", sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  overflow: hidden;
}

.sh-top {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
  padding: calc(0.55rem + env(safe-area-inset-top)) 0.9rem 0.55rem;
  background: linear-gradient(180deg, rgba(11, 10, 12, 0.88) 0%, rgba(11, 10, 12, 0.55) 70%, transparent 100%);
  backdrop-filter: blur(10px);
  pointer-events: none;
}
.sh-top__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.sh-top__brand {
  display: flex;
  align-items: center;
  gap: 0;
  min-width: 0;
  pointer-events: auto;
}
.sh-top a,
.sh-top button { pointer-events: auto; }
.sh-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0.02em;
  font-size: 0.92rem;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.55);
}
.sh-logo__mark {
  display: grid;
  place-items: center;
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--pink-soft), var(--pink-deep));
  box-shadow: 0 0 14px var(--glow);
  font-size: 0.95rem;
}
.sh-logo__text {
  white-space: nowrap;
}
.sh-top__actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-shrink: 0;
  pointer-events: auto;
}
.sh-chip {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.32rem 0.65rem;
  border-radius: 999px;
  color: #c9b3bd;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.18);
}
.sh-chip:hover {
  color: #fff;
  border-color: rgba(255, 180, 120, 0.55);
  background: rgba(255, 160, 80, 0.12);
}
.sh-link {
  color: #fff;
  text-decoration: none;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.32rem 0.65rem;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 77, 148, 0.45);
}

.sh-empty {
  margin: 5rem 1.2rem;
  color: var(--muted);
}

.sh-feed {
  height: 100%;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.sh-slide {
  position: relative;
  height: 100%;
  min-height: 100dvh;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: grid;
  grid-template-rows: 1fr auto 1fr;
  overflow: hidden;
  background: #000;
}

/* 上下を埋めるぼかし背景 */
.sh-slide__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: blur(28px) saturate(1.15);
  transform: scale(1.18);
  opacity: 0.55;
  z-index: 0;
  pointer-events: none;
}
.sh-slide__veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.15) 28%, rgba(0, 0, 0, 0.15) 72%, rgba(0, 0, 0, 0.72) 100%),
    radial-gradient(ellipse 80% 40% at 50% 50%, transparent 30%, rgba(0, 0, 0, 0.35) 100%);
}

/* 上帯 */
.sh-slide__top {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: calc(3.4rem + env(safe-area-inset-top)) 1rem 0.85rem;
}
.sh-slide__hook {
  width: 100%;
  margin: 0;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  background: var(--banner);
  border: 1px solid rgba(255, 77, 148, 0.35);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: 0.01em;
  text-align: center;
  color: #fff;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
}

/* 中央プレイヤー */
.sh-slide__mid {
  position: relative;
  z-index: 5;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0;
  pointer-events: auto;
}
.sh-slide__stage {
  position: relative;
  z-index: 5;
  width: 100%;
  max-width: 100%;
  height: 306px; /* JS で横幅に合わせて上書き */
  background: #000;
  overflow: hidden;
  pointer-events: auto;
  box-shadow: 0 0 0 1px rgba(255, 77, 148, 0.25), 0 0 40px rgba(255, 77, 148, 0.2);
}
/* transform:scale は iframe へのクリック座標を壊すので使わない */
.sh-slide__iframe-host {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.sh-slide__iframe-host iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  pointer-events: auto;
}

/* 下帯 */
.sh-slide__bottom {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 0.7rem;
  padding: 0.85rem 1rem calc(5.2rem + env(safe-area-inset-bottom));
}
.sh-slide__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  min-height: 1.7rem;
}
.sh-slide__slot {
  margin: 0;
  display: inline-flex;
  align-items: center;
  max-width: calc(100% - 2.8rem);
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--pink-soft), var(--pink-deep));
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 14px var(--glow);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sh-slide__slot:empty {
  display: none;
}
.sh-like {
  flex-shrink: 0;
  margin-left: auto;
  width: 2.15rem;
  height: 2.15rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  font: inherit;
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  backdrop-filter: blur(8px);
  transition: transform 0.12s ease, background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}
.sh-like:hover,
.sh-like:active {
  transform: scale(1.06);
  border-color: rgba(255, 77, 148, 0.8);
  background: rgba(255, 77, 148, 0.28);
}
.sh-like.is-on {
  color: #ff7bad;
  border-color: rgba(255, 77, 148, 0.9);
  background: rgba(255, 77, 148, 0.42);
  box-shadow: 0 0 16px rgba(255, 77, 148, 0.35);
}
.sh-slide__punch {
  margin: 0;
  padding: 0.75rem 1rem;
  border-radius: 14px;
  background: var(--banner);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.5;
  text-align: center;
  color: #ffe3ef;
}
.sh-slide__meta {
  margin: 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
}
.sh-slide__cta {
  display: flex;
  justify-content: center;
}
.sh-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.7rem 1.35rem;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
}
.sh-btn--primary {
  background: linear-gradient(120deg, var(--pink-soft), var(--pink) 55%, var(--pink-deep));
  color: #fff;
  box-shadow: 0 8px 22px var(--glow);
}
.sh-btn--ghost {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.sh-hint {
  position: fixed;
  top: calc(3.2rem + env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%);
  z-index: 25;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 77, 148, 0.35);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.sh-hint.is-gone { opacity: 0; }

.sh-nav {
  position: fixed;
  right: 0.55rem;
  top: 42%;
  transform: translateY(-50%);
  z-index: 25;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.sh-nav__btn {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 77, 148, 0.45);
  background: rgba(20, 12, 16, 0.65);
  color: #fff;
  font-size: 0.8rem;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

/* PC: ロゴ右の切替は lab-chrome 側。旧タブ用スタイルは削除済み */

@media (max-width: 980px) {
  .sh-slide__bottom {
    padding-bottom: calc(6.4rem + env(safe-area-inset-bottom));
  }
  .sh-nav {
    top: auto;
    bottom: calc(4.4rem + env(safe-area-inset-bottom));
    transform: none;
  }
}

.age-gate {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.78);
}
.age-gate[hidden] { display: none; }
.age-gate__panel {
  width: min(420px, 100%);
  padding: 1.4rem;
  border-radius: 18px;
  background: linear-gradient(160deg, #241820, #140f12);
  border: 1px solid rgba(255, 77, 148, 0.3);
}
.age-gate__kicker {
  margin: 0 0 0.35rem;
  color: var(--pink-soft);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}
.age-gate__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1rem;
}

@media (min-width: 720px) {
  .sh-feed {
    max-width: 430px;
    margin: 0 auto;
    border-left: 1px solid rgba(255, 77, 148, 0.15);
    border-right: 1px solid rgba(255, 77, 148, 0.15);
  }
}