/* ============================================================
   style.css  ―  Peace of take / Night Lounge Secret Ticket
   HTML構造・クラス名・JSを変更せず、CSSのみでデザイン調整
   ============================================================ */

/* --- リセット ------------------------------------------------ */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--color-bg);
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 8%, rgba(75, 31, 36, .52), transparent 32vw),
    radial-gradient(circle at 82% 16%, rgba(255, 122, 168, .12), transparent 28vw),
    radial-gradient(circle at 88% 24%, rgba(142, 167, 255, .10), transparent 30vw),
    radial-gradient(circle at 50% 88%, rgba(75, 31, 36, .25), transparent 36vw),
    linear-gradient(180deg, #12110f 0%, #0d0d0c 48%, #141210 100%);
  color: var(--color-text);
  font-family: var(--font-base);
  font-size: var(--fs-body);
  line-height: var(--lh-base);
  letter-spacing: .025em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: .28;
  background-image:
    linear-gradient(rgba(244, 239, 228, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 239, 228, .028) 1px, transparent 1px);
  background-size: 42px 42px, 42px 42px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 86%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .18;
  background-image:
    radial-gradient(circle, rgba(244, 239, 228, .7) 0 1px, transparent 1.5px);
  background-size: 34px 34px;
  mask-image:
    radial-gradient(circle at 50% 24%, black 0%, transparent 58%);
}

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

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: .26em;
  transition: color var(--transition), opacity var(--transition);
}

a:hover {
  color: var(--color-text);
}

::selection {
  background: rgba(200, 169, 106, .28);
  color: var(--color-text);
}

/* --- 汎用レイアウト ------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  position: relative;
  padding-block: var(--section-gap);
}

.section::after {
  content: "";
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: 0;
  max-width: var(--maxw);
  margin-inline: auto;
  border-bottom: 1px solid rgba(244, 239, 228, .075);
  pointer-events: none;
}

.section:nth-of-type(even)::before {
  content: "";
  position: absolute;
  inset: 28px var(--gutter);
  max-width: calc(var(--maxw) + 56px);
  margin-inline: auto;
  border: 1px solid rgba(200, 169, 106, .12);
  border-radius: calc(var(--radius) + 22px);
  pointer-events: none;
  opacity: .74;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, .028), transparent 42%),
    rgba(255, 255, 255, .008);
}

.section .container {
  position: relative;
}

.section p {
  max-width: 46em;
}

.section__title {
  position: relative;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  line-height: 1.16;
  margin: 0 0 1.45rem;
  letter-spacing: .055em;
  font-weight: 600;
}

.section__title::after {
  content: "";
  display: block;
  width: 52px;
  height: 1px;
  margin-top: 1rem;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  opacity: .72;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .74em;
  font-size: var(--fs-small);
  letter-spacing: .25em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin: 0 0 .7rem;
  font-weight: 800;
}

.eyebrow::before {
  content: "";
  width: .55em;
  height: .55em;
  border-radius: 999px;
  background: currentColor;
  box-shadow:
    10px 0 0 rgba(200, 169, 106, .22),
    20px 0 0 rgba(200, 169, 106, .10);
}

.small {
  font-size: var(--fs-small);
}

/* --- ヘッダー / ナビ ----------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(16, 16, 15, .72);
  border-bottom: 1px solid rgba(244, 239, 228, .10);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 1rem;
}

.site-header__logo {
  position: relative;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: .085em;
  white-space: nowrap;
  color: var(--color-text);
}

.site-header__logo::after {
  content: "";
  display: inline-block;
  width: .42em;
  height: .42em;
  margin-left: .55em;
  border-radius: 999px;
  background: var(--color-neon-pink);
  box-shadow:
    0 0 10px rgba(255, 122, 168, .65),
    0 0 24px rgba(255, 122, 168, .28),
    10px 4px 0 rgba(142, 167, 255, .34);
  transform: translateY(-.1em);
}

.nav {
  display: flex;
  gap: .36rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: .74rem;
  line-height: 1;
  letter-spacing: .12em;
  padding: .72em .84em;
  border-radius: 999px;
}

.nav a:hover {
  color: var(--color-text);
  background: rgba(244, 239, 228, .065);
}

/* --- ヒーロー ------------------------------------------------ */
.hero {
  position: relative;
  min-height: 88svh;
  display: grid;
  place-content: center;
  text-align: center;
  padding-block: clamp(96px, 17vw, 172px);
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  width: min(78vw, 780px);
  aspect-ratio: 1.42 / 1;
  left: 50%;
  top: 47%;
  transform: translate(-50%, -50%) rotate(-4deg);
  z-index: -2;
  border-radius: 36px;
  background:
    linear-gradient(90deg, transparent 0 22px, rgba(200, 169, 106, .32) 22px 23px, transparent 23px calc(100% - 23px), rgba(200, 169, 106, .32) calc(100% - 23px) calc(100% - 22px), transparent calc(100% - 22px)),
    radial-gradient(circle at 18% 22%, rgba(255, 122, 168, .13), transparent 32%),
    radial-gradient(circle at 84% 72%, rgba(142, 167, 255, .10), transparent 34%),
    linear-gradient(135deg, rgba(244, 239, 228, .055), rgba(244, 239, 228, .018) 46%, rgba(75, 31, 36, .22)),
    rgba(25, 24, 22, .70);
  border: 1px solid rgba(200, 169, 106, .22);
  box-shadow:
    0 40px 120px rgba(0, 0, 0, .42),
    0 0 52px rgba(255, 122, 168, .055),
    inset 0 0 0 1px rgba(255, 255, 255, .025);
}

.hero::after {
  content: "secret ticket";
  position: absolute;
  left: 50%;
  bottom: clamp(20px, 6vw, 70px);
  transform: translateX(-50%) rotate(-2deg);
  z-index: -1;
  color: rgba(244, 239, 228, .055);
  font-family: var(--font-display);
  font-size: clamp(3rem, 13vw, 9rem);
  line-height: 1;
  white-space: nowrap;
  letter-spacing: .04em;
}

.hero .container {
  position: relative;
}

.hero .container::after {
  content: "";
  position: absolute;
  right: clamp(-30px, -4vw, -12px);
  top: clamp(-44px, -5vw, -20px);
  width: clamp(86px, 18vw, 160px);
  height: clamp(28px, 6vw, 48px);
  border: 1px solid rgba(255, 122, 168, .30);
  border-radius: 999px;
  transform: rotate(-9deg);
  opacity: .68;
  pointer-events: none;
  box-shadow:
    0 0 14px rgba(255, 122, 168, .18),
    0 0 34px rgba(142, 167, 255, .10),
    inset 0 0 12px rgba(255, 122, 168, .08);
}

.hero .container::before {
  content: "";
  position: absolute;
  right: clamp(8px, 3vw, 44px);
  top: clamp(-30px, -3vw, -10px);
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--color-neon-pink);
  opacity: .86;
  pointer-events: none;
  box-shadow:
    0 0 10px rgba(255, 122, 168, .75),
    -18px 16px 0 rgba(142, 167, 255, .42),
    -38px 8px 0 rgba(200, 169, 106, .32);
}

.hero .eyebrow {
  justify-content: center;
}

.hero__title {
  position: relative;
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  line-height: .92;
  margin: 0 0 1.35rem;
  letter-spacing: .02em;
  font-weight: 600;
  color: var(--color-text);
  text-wrap: balance;
  text-shadow:
    0 18px 60px rgba(0, 0, 0, .42),
    0 0 18px rgba(200, 169, 106, .13),
    0 0 34px rgba(255, 122, 168, .10),
    -8px 6px 30px rgba(142, 167, 255, .08);
}

.hero__title::before,
.hero__title::after {
  content: "";
  position: absolute;
  pointer-events: none;
  border-radius: 999px;
}

.hero__title::before {
  width: clamp(48px, 10vw, 96px);
  height: clamp(48px, 10vw, 96px);
  left: -2vw;
  top: -.18em;
  border: 1px solid rgba(200, 169, 106, .34);
  background: rgba(200, 169, 106, .035);
  transform: rotate(13deg);
}

.hero__title::after {
  width: clamp(32px, 6vw, 62px);
  height: clamp(32px, 6vw, 62px);
  right: 4vw;
  bottom: -.08em;
  border: 1px solid rgba(255, 122, 168, .48);
  background: rgba(255, 122, 168, .09);
  box-shadow:
    0 0 18px rgba(255, 122, 168, .20),
    inset 0 0 16px rgba(255, 122, 168, .08);
  transform: rotate(-18deg);
}

.hero__lead {
  color: var(--color-text-muted);
  max-width: 34em;
  margin-inline: auto;
  font-weight: 500;
}

.hero p[style] {
  margin-top: 1.65rem !important;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(135deg, #d3ba7b, var(--color-badge-bg));
  color: var(--color-badge-text);
  font-weight: 900;
  font-size: var(--fs-small);
  padding: .52em 1.18em;
  border-radius: 999px;
  letter-spacing: .14em;
  box-shadow:
    0 16px 42px rgba(0, 0, 0, .34),
    0 0 20px rgba(200, 169, 106, .20),
    0 0 30px rgba(255, 122, 168, .08),
    0 0 0 1px rgba(255, 255, 255, .18) inset;
}

.badge::before,
.badge::after {
  content: "";
  width: .34em;
  height: .34em;
  border-radius: 999px;
  background: currentColor;
  opacity: .62;
}

.badge::before {
  margin-right: .72em;
}

.badge::after {
  margin-left: .72em;
}

.hero__meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: .72rem;
  justify-content: center;
  max-width: 780px;
  margin: 2.45rem auto 0;
  font-size: var(--fs-small);
}

.hero__meta div {
  position: relative;
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 1rem;
  align-items: baseline;
  text-align: left;
  padding: .92rem 1rem;
  background: rgba(244, 239, 228, .045);
  border: 1px solid rgba(244, 239, 228, .12);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
}

.hero__meta div::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 16%;
  bottom: 16%;
  border-left: 1px dashed rgba(200, 169, 106, .36);
}

.hero__meta dt {
  color: var(--color-accent);
  font-weight: 900;
  letter-spacing: .16em;
  font-size: .72rem;
}

.hero__meta dd {
  margin: 0;
  color: var(--color-text);
  font-weight: 700;
}

/* --- カウントダウン ------------------------------------------ */
.countdown {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  justify-content: center;
  margin-top: 2rem;
}

.countdown__unit {
  min-width: 68px;
  padding: .8rem .64rem .72rem;
  background: rgba(244, 239, 228, .045);
  border: 1px solid rgba(244, 239, 228, .13);
  border-radius: var(--radius-sm);
  text-align: center;
  box-shadow: var(--shadow-soft);
}

.countdown__num {
  font-family: var(--font-display);
  font-size: 1.78rem;
  line-height: 1;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--color-text);
}

.countdown__label {
  margin-top: .28rem;
  font-size: .64rem;
  color: var(--color-text-muted);
  letter-spacing: .16em;
  text-transform: uppercase;
}

/* --- ABOUT --------------------------------------------------- */
#about .container {
  max-width: 820px;
}

#about p:last-child {
  font-size: clamp(1.03rem, 2.7vw, 1.16rem);
}

/* --- プログラム（三部制） ------------------------------------ */
.program__grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.part {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(244, 239, 228, .072), rgba(244, 239, 228, .026) 54%, rgba(75, 31, 36, .13));
  border: 1px solid rgba(244, 239, 228, .12);
  border-radius: var(--radius);
  padding: clamp(1.35rem, 4vw, 1.85rem);
  display: flex;
  flex-direction: column;
  gap: .75rem;
  box-shadow: var(--shadow-soft);
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition),
    background var(--transition);
}

.part::before {
  content: "";
  position: absolute;
  inset: auto -34px -40px auto;
  width: 138px;
  aspect-ratio: 1;
  border-radius: 999px;
  background: rgba(200, 169, 106, .075);
}

.part::after {
  content: "";
  position: absolute;
  right: 1rem;
  top: 1rem;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--color-neon-pink);
  opacity: .82;
  box-shadow:
    0 0 12px rgba(255, 122, 168, .50),
    14px 8px 0 rgba(142, 167, 255, .42),
    27px 0 0 rgba(200, 169, 106, .18);
}

.part:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(200, 169, 106, .28);
  background:
    linear-gradient(145deg, rgba(244, 239, 228, .092), rgba(244, 239, 228, .032) 54%, rgba(75, 31, 36, .18));
}

.part__no {
  position: relative;
  font-family: var(--font-display);
  color: var(--color-accent);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: .09em;
}

.part__time {
  position: relative;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 5vw, 2rem);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--color-text);
}

.part p {
  position: relative;
  margin: 0;
  color: var(--color-text-muted);
}

.part__tags {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin-top: auto;
  padding-top: .65rem;
}

.tag {
  font-size: .75rem;
  line-height: 1;
  padding: .48em .78em;
  border: 1px solid rgba(244, 239, 228, .14);
  border-radius: 999px;
  color: var(--color-text-muted);
  background: rgba(244, 239, 228, .035);
  font-weight: 700;
}

.tag--fc {
  border-color: rgba(255, 122, 168, .42);
  color: var(--color-neon-pink);
  background: rgba(255, 122, 168, .075);
  text-shadow: 0 0 10px rgba(255, 122, 168, .22);
}

.part__promo {
  position: relative;
  margin-top: .35rem;
  padding: .85rem .95rem;
  border: 1px solid rgba(255, 122, 168, .30);
  border-radius: var(--radius-sm);
  background: rgba(255, 122, 168, .055);
}

.part__promo-label {
  display: inline-block;
  margin-bottom: .4rem;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--color-neon-pink);
  text-shadow: 0 0 10px rgba(255, 122, 168, .22);
}

.part__promo p {
  margin: 0 0 .55rem;
  font-size: .85rem;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.part__promo p strong {
  color: var(--color-text);
}

.part__promo-link {
  display: inline-block;
  font-size: .82rem;
  font-weight: 700;
  color: var(--color-neon-pink);
}

/* --- 出演者（元写真を大きく、縦に4枚） ----------------------- */
.cast__grid {
  display: flex;
  flex-direction: column;
  gap: clamp(2.2rem, 8vw, 4.4rem);
  max-width: 760px;
  margin: 2rem auto 0;
}

.cast__item {
  position: relative;
  background: transparent;
  border: 0;
  padding: 0;
  margin: 0;
  text-align: center;
}

.cast__item::before {
  content: "";
  position: absolute;
  inset: -10px;
  border: 1px solid rgba(200, 169, 106, .16);
  border-radius: calc(var(--radius) + 14px);
  transform: rotate(-.6deg);
  pointer-events: none;
}

.cast__item:nth-child(even)::before {
  transform: rotate(.6deg);
}

.cast__item::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 48px;
  border-bottom: 1px dashed rgba(200, 169, 106, .22);
  pointer-events: none;
}

.cast__photo {
  width: 100%;
  height: auto;
  min-height: 420px;
  display: block;
  object-fit: cover;
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(244, 239, 228, .06), rgba(244, 239, 228, .02)),
    repeating-linear-gradient(135deg, rgba(244, 239, 228, .035) 0 1px, transparent 1px 10px);
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(244, 239, 228, .12);
}

.cast__name {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6em;
  font-weight: 800;
  font-size: 1.08rem;
  letter-spacing: .12em;
  color: var(--color-text);
  background: rgba(16, 16, 15, .72);
  border: 1px solid rgba(200, 169, 106, .22);
  border-radius: 999px;
  padding: .5em 1.2em;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.cast__name::before {
  content: "";
  width: .42em;
  height: .42em;
  border-radius: 999px;
  background: var(--color-accent);
  box-shadow: 0 0 16px rgba(200, 169, 106, .38);
}

/* --- アクセス ------------------------------------------------ */
.access__addr {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
}

.access__map {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: var(--radius);
  margin-top: 1.25rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(244, 239, 228, .12);
  filter: saturate(.72) contrast(.92) brightness(.82);
}

/* --- 注意事項 ------------------------------------------------ */
.notes {
  color: var(--color-text);
}

.notes .container {
  background:
    linear-gradient(145deg, rgba(244, 239, 228, .07), rgba(244, 239, 228, .027) 54%, rgba(75, 31, 36, .12));
  border: 1px solid rgba(244, 239, 228, .12);
  border-radius: calc(var(--radius) + 12px);
  padding-block: clamp(2rem, 7vw, 4rem);
  box-shadow: var(--shadow-soft);
}

.notes ul {
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: .74rem;
}

.notes li {
  position: relative;
  margin: 0;
  padding-left: 1.65em;
  color: var(--color-text-muted);
}

.notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .86em;
  width: .46em;
  height: .46em;
  border-radius: 999px;
  background: var(--color-accent);
  opacity: .84;
  box-shadow: 0 0 14px rgba(200, 169, 106, .26);
}

.notes .small {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
}

/* --- FAQ（アコーディオン） ----------------------------------- */
.faq__item {
  border-bottom: 1px solid rgba(244, 239, 228, .11);
  background: rgba(244, 239, 228, .024);
}

.faq__item:first-of-type {
  border-top: 1px solid rgba(244, 239, 228, .11);
}

.faq__q {
  width: 100%;
  text-align: left;
  cursor: pointer;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  font-weight: 800;
  padding: 1.15rem .2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  list-style: none;
}

.faq__q::-webkit-details-marker {
  display: none;
}

.faq__q::after {
  content: "＋";
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 999px;
  color: var(--color-accent);
  background: rgba(200, 169, 106, .09);
  font-weight: 700;
}

.faq__item[open] .faq__q::after {
  content: "−";
  background: rgba(143, 79, 69, .16);
  color: var(--color-text);
}

.faq__a {
  padding: 0 .2rem 1.25rem;
  color: var(--color-text-muted);
}

.todo {
  color: var(--color-accent-2);
  font-size: var(--fs-small);
}

/* --- フッター ------------------------------------------------ */
.site-footer {
  position: relative;
  border-top: 1px solid rgba(244, 239, 228, .10);
  padding-block: clamp(3rem, 9vw, 5rem);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  background:
    radial-gradient(circle at 50% 0%, rgba(200, 169, 106, .10), transparent 36%),
    rgba(244, 239, 228, .018);
}

.site-footer p {
  margin: .2rem 0;
}

.site-footer a {
  color: var(--color-accent);
}

/* ============================================================
   隠しピース「日常で忘れがちな小さな愛」関連
   ============================================================ */

/* ピース本体：通常時は“ふつうの文字”のまま */
.piece {
  cursor: pointer;
  color: inherit;
  text-decoration: none;
  transition: color .35s ease, text-shadow .35s ease, background-size .35s ease;
}

.piece.found {
  color: var(--color-neon-pink);
  text-shadow:
    0 0 8px rgba(255, 122, 168, .55),
    0 0 18px rgba(255, 122, 168, .30),
    0 0 30px rgba(142, 167, 255, .16);
}

/* 収集トラッカー */
.piece-tracker {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  display: none;
  gap: .2em;
  align-items: center;
  background: rgba(16, 16, 15, .82);
  border: 1px solid rgba(200, 169, 106, .22);
  border-radius: 999px;
  padding: .58em 1.12em;
  z-index: 60;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: .1em;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.piece-tracker[data-active="true"] {
  display: flex;
}

.piece-tracker span {
  color: var(--color-text-muted);
  opacity: .34;
  transition: all .35s ease;
}

.piece-tracker span.on {
  color: var(--color-neon-pink);
  opacity: 1;
  text-shadow:
    0 0 10px rgba(255, 122, 168, .46),
    0 0 18px rgba(142, 167, 255, .20);
}

/* ごほうびモーダル */
.secret {
  position: fixed;
  inset: 0;
  display: none;
  place-content: center;
  background:
    radial-gradient(circle at 50% 42%, rgba(200, 169, 106, .16), transparent 30%),
    rgba(6, 6, 6, .86);
  z-index: 100;
  padding: var(--gutter);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.secret[data-open="true"] {
  display: grid;
}

.secret__box {
  background:
    linear-gradient(145deg, rgba(244, 239, 228, .092), rgba(244, 239, 228, .035) 55%, rgba(75, 31, 36, .16)),
    #151310;
  border: 1px solid rgba(200, 169, 106, .42);
  border-radius: var(--radius);
  padding: clamp(2rem, 7vw, 3rem);
  max-width: 29em;
  text-align: center;
  box-shadow: 0 30px 100px rgba(0, 0, 0, .48);
}

.secret__box .eyebrow {
  justify-content: center;
}

.secret__phrase {
  font-family: var(--font-display);
  font-size: 1.45rem;
  color: var(--color-text);
  margin: .25rem 0 1.25rem;
  letter-spacing: .08em;
  font-weight: 700;
}

.secret__prize {
  font-size: clamp(1.45rem, 7vw, 1.9rem);
  font-weight: 800;
  color: var(--color-neon-pink);
  border: 2px dashed rgba(255, 122, 168, .62);
  border-radius: var(--radius);
  padding: 1.1rem 1rem;
  margin: .5rem 0 1rem;
  letter-spacing: .04em;
  background:
    radial-gradient(circle at 18% 24%, rgba(255, 122, 168, .12), transparent 32%),
    rgba(200, 169, 106, .045);
  text-shadow:
    0 0 10px rgba(255, 122, 168, .38),
    0 0 20px rgba(142, 167, 255, .14);
}

.secret__use {
  font-size: var(--fs-small);
  color: var(--color-accent);
  margin: 0 0 1.25rem;
  font-weight: 700;
}

.secret__msg {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  line-height: 1.85;
  margin-bottom: 1.5rem;
}

.secret__close {
  background:
    linear-gradient(135deg, #d3ba7b, var(--color-accent));
  color: var(--color-badge-text);
  border: 0;
  border-radius: 999px;
  padding: .7em 1.8em;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
  transition: transform var(--transition), opacity var(--transition);
}

.secret__close:hover {
  transform: translateY(-2px);
  opacity: .92;
}

/* --- レスポンシブ -------------------------------------------- */
@media (min-width: 720px) {
  .hero__meta {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero__meta div {
    grid-template-columns: 1fr;
    text-align: center;
    gap: .35rem;
    padding: 1.1rem .9rem;
  }

  .hero__meta div::before {
    left: 16%;
    right: 16%;
    top: -1px;
    bottom: auto;
    border-left: 0;
    border-top: 1px dashed rgba(200, 169, 106, .32);
  }

  .program__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .part:nth-child(2) {
    transform: translateY(18px);
  }

  .part:nth-child(2):hover {
    transform: translateY(12px);
  }
}

@media (max-width: 719px) {
  .site-header .container {
    align-items: flex-start;
    flex-direction: column;
    padding-block: .82rem;
    gap: .5rem;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    gap: .25rem;
  }

  .nav a {
    padding: .58em .68em;
  }

  .hero {
    text-align: left;
    place-content: center;
  }

  .hero .eyebrow {
    justify-content: flex-start;
  }

  .hero::before {
    width: 92vw;
    top: 48%;
    transform: translate(-50%, -50%) rotate(-3deg);
  }

  .hero__lead {
    margin-inline: 0;
  }

  .hero__title::before {
    left: auto;
    right: .12em;
    top: -.32em;
  }

  .hero__title::after {
    right: auto;
    left: .18em;
    bottom: -.22em;
  }

  .hero__meta {
    margin-inline: 0;
  }

  .countdown {
    justify-content: flex-start;
  }

  .countdown__unit {
    min-width: 64px;
  }

  .section:nth-of-type(even)::before {
    inset-inline: 12px;
  }

  .notes .container {
    border-radius: var(--radius);
  }

  .cast__photo {
    min-height: 360px;
  }

  .access__map {
    aspect-ratio: 4 / 3;
  }
}

@media (max-width: 420px) {
  .nav a {
    font-size: .68rem;
  }

  .hero__meta div {
    grid-template-columns: 56px 1fr;
    gap: .75rem;
  }

  .countdown {
    gap: .45rem;
  }

  .countdown__unit {
    min-width: calc(50% - .25rem);
  }

  .cast__photo {
    min-height: 300px;
  }
}

/* --- アクセシビリティ ---------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}