/*
 * ラバーキーホルダーのページ専用 全画面 CTA 演出
 * 読み込みは inc/rubber-idol-cta.php（product ID 3823 のときだけ）
 *
 * 進行は JS が #rkIdol の data-step を 1 → 2 → 3 と進め、
 * 2 の中の掛け声は .is-q1 / .is-q2 / .is-q3 を順に足していく。
 */

.rk-idol {
  --rk-pink: #ff3d9a;
  --rk-yellow: #ffe14d;
  --rk-cyan: #2de2ff;
  --rk-purple: #8a4dff;
  --rk-font: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;

  position: fixed;
  inset: 0;
  z-index: 2147483647;
  overflow: hidden;
  font-family: var(--rk-font);
  color: #fff;
  text-align: center;
  opacity: 0;
  transition: opacity .45s ease;
  -webkit-font-smoothing: antialiased;
}
.rk-idol *,
.rk-idol *::before,
.rk-idol *::after { box-sizing: border-box; }
.rk-idol.is-open { opacity: 1; }
.rk-idol.is-closing { opacity: 0; transition-duration: .3s; }

/* ---------- 背景・スポットライト ---------- */

.rk-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 120%, rgba(138, 77, 255, .55), transparent 60%),
    radial-gradient(ellipse at 50% -20%, rgba(255, 61, 154, .35), transparent 55%),
    #0b0520;
}

/* 床のステージ照り返し */
.rk-bg::after {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -18vh;
  height: 40vh;
  border-radius: 50%;
  background: radial-gradient(ellipse at 50% 0, rgba(255, 225, 77, .35), transparent 70%);
  filter: blur(6px);
}

.rk-beams {
  position: absolute;
  inset: 0;
  pointer-events: none;
  mix-blend-mode: screen;
}
.rk-beam {
  position: absolute;
  top: -12vh;
  width: 34vmax;
  height: 130vh;
  transform-origin: 50% 0;
  background: linear-gradient(to bottom, var(--c) 0%, transparent 85%);
  clip-path: polygon(46% 0, 54% 0, 100% 100%, 0 100%);
  opacity: .0;
  filter: blur(2px);
  animation: rk-sweep var(--d, 4s) ease-in-out infinite alternate;
  animation-delay: var(--delay, 0s);
  transition: opacity .6s ease;
}
.rk-idol[data-step] .rk-beam { opacity: .38; }
.rk-idol[data-step="3"] .rk-beam { opacity: .7; --d: 1.6s; }

.rk-beam:nth-child(1) { left: -12vmax; --c: rgba(255, 61, 154, .9); --from: -28deg; --to: 12deg; --d: 4.2s; }
.rk-beam:nth-child(2) { left: 8vw;     --c: rgba(45, 226, 255, .85); --from: 20deg;  --to: -18deg; --d: 3.4s; --delay: -1s; }
.rk-beam:nth-child(3) { left: calc(50% - 17vmax); --c: rgba(255, 225, 77, .9); --from: -14deg; --to: 14deg; --d: 2.8s; --delay: -.5s; }
.rk-beam:nth-child(4) { right: 8vw;    --c: rgba(138, 77, 255, .9); --from: -20deg; --to: 18deg;  --d: 3.6s; --delay: -2s; }
.rk-beam:nth-child(5) { right: -12vmax; --c: rgba(255, 140, 60, .85); --from: 28deg; --to: -12deg; --d: 4.6s; --delay: -1.4s; }

@keyframes rk-sweep {
  from { transform: rotate(var(--from)); }
  to   { transform: rotate(var(--to)); }
}

/* 最後の「ピカッ」。点滅は1秒に2回以下に抑える（光過敏への配慮） */
.rk-flash {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 50% 45%, #fff 0%, rgba(255, 255, 255, .6) 30%, transparent 70%);
  opacity: 0;
}
.rk-idol[data-step="3"] .rk-flash { animation: rk-flash 1.2s ease-out 1 both; }
@keyframes rk-flash {
  0%   { opacity: 0; }
  12%  { opacity: .95; }
  45%  { opacity: .1; }
  62%  { opacity: .6; }
  100% { opacity: 0; }
}

/* キラキラ */
.rk-sparkles { position: absolute; inset: 0; pointer-events: none; }
.rk-spark {
  position: absolute;
  width: var(--s, 14px);
  height: var(--s, 14px);
  background: var(--c, #fff);
  clip-path: polygon(50% 0, 61% 39%, 100% 50%, 61% 61%, 50% 100%, 39% 61%, 0 50%, 39% 39%);
  opacity: 0;
  animation: rk-twinkle var(--d, 1.8s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
  filter: drop-shadow(0 0 6px var(--c, #fff));
}
@keyframes rk-twinkle {
  0%, 100% { opacity: 0; transform: scale(.2) rotate(0); }
  50%      { opacity: 1; transform: scale(1) rotate(45deg); }
}

/* 紙吹雪（フィナーレのみ） */
.rk-confetti { position: absolute; inset: 0; pointer-events: none; }
.rk-conf {
  position: absolute;
  top: -4vh;
  width: 10px;
  height: 16px;
  border-radius: 2px;
  background: var(--c);
  animation: rk-fall var(--d, 3.2s) linear infinite;
  animation-delay: var(--delay, 0s);
}
@keyframes rk-fall {
  0%   { transform: translate3d(0, 0, 0) rotate(0); }
  100% { transform: translate3d(var(--dx, 40px), 112vh, 0) rotate(720deg); }
}

/* ---------- 飛んでくる商品写真 ---------- */

.rk-items { position: absolute; inset: 0; pointer-events: none; }
.rk-item {
  position: absolute;
  width: clamp(76px, 13vw, 170px);
  aspect-ratio: 1;
  border-radius: 22%;
  border: 4px solid #fff;
  background: #fff center / cover no-repeat;
  box-shadow: 0 0 0 4px var(--c, var(--rk-pink)), 0 12px 30px rgba(0, 0, 0, .45), 0 0 28px var(--c, var(--rk-pink));
  opacity: 0;
}
.rk-item.from-left  { left: var(--x); --sx: -60vw; }
.rk-item.from-right { right: var(--x); --sx: 60vw; }
.rk-idol[data-step] .rk-item {
  animation:
    rk-fly .9s cubic-bezier(.2, 1.4, .4, 1) var(--delay, 0s) both,
    rk-bob 2.4s ease-in-out calc(var(--delay, 0s) + .9s) infinite alternate;
}
@keyframes rk-fly {
  from { opacity: 0; transform: translateX(var(--sx)) rotate(calc(var(--r) * -4)); }
  to   { opacity: 1; transform: translateX(0) rotate(var(--r)); }
}
@keyframes rk-bob {
  from { opacity: 1; transform: translateY(0) rotate(var(--r)); }
  to   { opacity: 1; transform: translateY(-14px) rotate(calc(var(--r) * -1)); }
}

/* ---------- 中央の文字 ---------- */

.rk-stage {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 72px 16px 32px;
}
.rk-scene {
  grid-area: 1 / 1;
  width: min(92vw, 980px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .4s ease, visibility 0s linear .4s;
}
.rk-idol[data-step="1"] .rk-s1,
.rk-idol[data-step="2"] .rk-s2,
.rk-idol[data-step="3"] .rk-s3 {
  opacity: 1;
  visibility: visible;
  transition: opacity .4s ease, visibility 0s;
}

.rk-text-stroke {
  paint-order: stroke fill;
  -webkit-text-stroke: 6px #1a0636;
  text-shadow: 0 6px 0 #1a0636, 0 0 24px rgba(255, 61, 154, .6);
}

/* シーン1：横から帯が差し込む */
.rk-band {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto 14px;
  padding: .35em .9em;
  font-weight: 900;
  font-size: clamp(18px, 3.6vw, 40px);
  line-height: 1.3;
  letter-spacing: .04em;
  transform: skewX(-10deg);
  opacity: 0;
}
.rk-band > span { display: inline-block; transform: skewX(10deg); }
.rk-band.l { background: linear-gradient(90deg, var(--rk-pink), #ff7ac0); box-shadow: 8px 8px 0 #1a0636; }
.rk-band.r { background: linear-gradient(90deg, #2d8bff, var(--rk-cyan)); box-shadow: -8px 8px 0 #1a0636; }
.rk-idol[data-step="1"] .rk-band.l { animation: rk-in-left .7s cubic-bezier(.2, 1.3, .4, 1) .1s both; }
.rk-idol[data-step="1"] .rk-band.r { animation: rk-in-right .7s cubic-bezier(.2, 1.3, .4, 1) .6s both; }

.rk-omakase {
  margin-top: 18px;
  font-weight: 900;
  font-size: clamp(30px, 7vw, 84px);
  line-height: 1.15;
  color: var(--rk-yellow);
  opacity: 0;
}
.rk-idol[data-step="1"] .rk-omakase { animation: rk-pop .8s cubic-bezier(.2, 1.6, .4, 1) 1.3s both; }

@keyframes rk-in-left  { from { opacity: 0; transform: translateX(-110vw) skewX(-10deg); } to { opacity: 1; transform: translateX(0) skewX(-10deg); } }
@keyframes rk-in-right { from { opacity: 0; transform: translateX(110vw) skewX(-10deg); }  to { opacity: 1; transform: translateX(0) skewX(-10deg); } }
@keyframes rk-pop {
  0%   { opacity: 0; transform: scale(.2) rotate(-8deg); }
  70%  { opacity: 1; transform: scale(1.12) rotate(2deg); }
  100% { opacity: 1; transform: scale(1) rotate(0); }
}

/* シーン2：掛け声（コール＆レスポンス） */
.rk-calls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(8px, 1.6vh, 18px);
  margin: 0;
  padding: 0;
  list-style: none;
}
.rk-call {
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 88px);
  line-height: 1.1;
  opacity: 0;
}
.rk-call small {
  display: block;
  margin-bottom: .2em;
  font-size: .42em;
  color: #fff;
}
.rk-idol.is-q1 .rk-call.q1,
.rk-idol.is-q2 .rk-call.q2,
.rk-idol.is-q3 .rk-call.q3 { animation: rk-pop .7s cubic-bezier(.2, 1.6, .4, 1) both; }

.rk-rainbow {
  background: linear-gradient(90deg, #ff3d6e, #ff9a2e, #ffe14d, #3de08a, #2de2ff, #8a4dff, #ff3d9a, #ff3d6e);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-stroke: 0;
  filter: drop-shadow(0 4px 0 #1a0636) drop-shadow(0 0 14px rgba(255, 255, 255, .35));
  animation: rk-rainbow 2.4s linear infinite;
}
@keyframes rk-rainbow { to { background-position: 200% 0; } }

.rk-call.q2 { color: var(--rk-cyan); }
.rk-call.q3 { color: var(--rk-yellow); }
.rk-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: .3em;
  font-size: .36em;
}
.rk-tags span {
  padding: .25em .8em;
  border-radius: 999px;
  background: #fff;
  color: #1a0636;
  -webkit-text-stroke: 0;
  text-shadow: none;
  box-shadow: 0 4px 0 #1a0636;
}

/* シーン3：フィナーレ */
.rk-sore {
  font-weight: 900;
  font-size: clamp(22px, 4.4vw, 48px);
  opacity: 0;
}
.rk-keio {
  margin: .1em 0 .35em;
  font-weight: 900;
  font-size: clamp(40px, 8vw, 112px);
  line-height: 1.05;
  white-space: nowrap;
  color: #fff;
  opacity: 0;
}
.rk-keio em {
  font-style: normal;
  color: var(--rk-yellow);
}
.rk-idol[data-step="3"] .rk-sore { animation: rk-pop .6s cubic-bezier(.2, 1.6, .4, 1) .05s both; }
.rk-idol[data-step="3"] .rk-keio { animation: rk-pop .9s cubic-bezier(.2, 1.6, .4, 1) .35s both, rk-glow 1.6s ease-in-out 1.3s infinite alternate; }
@keyframes rk-glow {
  from { filter: drop-shadow(0 0 0 rgba(255, 225, 77, 0)); }
  to   { filter: drop-shadow(0 0 22px rgba(255, 225, 77, .85)); }
}

.rk-cta-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  opacity: 0;
}
.rk-idol[data-step="3"] .rk-cta-wrap { animation: rk-rise .6s ease-out 1.1s both; }
@keyframes rk-rise { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: none; } }

.rk-idol .rk-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .5em;
  padding: .85em 1.8em;
  border: 4px solid #fff;
  border-radius: 999px;
  background: linear-gradient(90deg, #ff4b4b, var(--rk-pink));
  color: #fff;
  font-family: var(--rk-font);
  font-weight: 900;
  font-size: clamp(17px, 2.6vw, 26px);
  line-height: 1.2;
  text-decoration: none;
  letter-spacing: .04em;
  box-shadow: 0 8px 0 #1a0636, 0 0 32px rgba(255, 61, 154, .8);
  cursor: pointer;
  overflow: hidden;
  animation: rk-beat 1.1s ease-in-out 1.8s infinite;
}
.rk-idol .rk-cta::after {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .7), transparent);
  transform: skewX(-20deg);
  animation: rk-shine 2.2s ease-in-out 2s infinite;
}
.rk-idol .rk-cta:hover,
.rk-idol .rk-cta:focus-visible { filter: brightness(1.12); color: #fff; text-decoration: none; }
.rk-idol .rk-cta:focus-visible { outline: 4px solid var(--rk-yellow); outline-offset: 4px; }
@keyframes rk-beat { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.06); } }
@keyframes rk-shine { 0% { left: -60%; } 60%, 100% { left: 130%; } }

.rk-cta-note {
  font-size: clamp(12px, 1.6vw, 15px);
  color: rgba(255, 255, 255, .85);
}

/* ---------- 閉じるボタン ---------- */

.rk-idol .rk-close {
  position: absolute;
  top: max(14px, env(safe-area-inset-top));
  right: max(14px, env(safe-area-inset-right));
  z-index: 2;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin: 0;
  padding: 0;
  border: 3px solid #fff;
  border-radius: 50%;
  background: rgba(11, 5, 32, .7);
  color: #fff;
  font: 700 30px/1 var(--rk-font);
  cursor: pointer;
  transition: transform .2s ease, background .2s ease;
}
.rk-idol .rk-close:hover { background: var(--rk-pink); transform: rotate(90deg); }
.rk-idol .rk-close:focus-visible { outline: 4px solid var(--rk-yellow); outline-offset: 3px; }

/* ---------- スマホ ---------- */

@media (max-width: 600px) {
  .rk-text-stroke { -webkit-text-stroke: 4px #1a0636; text-shadow: 0 4px 0 #1a0636; }
  .rk-band.l, .rk-band.r { box-shadow: 5px 5px 0 #1a0636; }
  .rk-item { border-width: 3px; }
  .rk-call { font-size: 11vw; }
  .rk-omakase { font-size: 10vw; }
  .rk-keio { font-size: 12vw; }
}

/* ---------- 動きを減らす設定の人には、動かさずに最後の画面だけ出す ---------- */

@media (prefers-reduced-motion: reduce) {
  .rk-idol *,
  .rk-idol *::before,
  .rk-idol *::after {
    animation: none !important;
    transition: none !important;
  }
  .rk-idol .rk-item,
  .rk-idol .rk-sore,
  .rk-idol .rk-keio,
  .rk-idol .rk-cta-wrap { opacity: 1; }
  .rk-idol .rk-spark,
  .rk-idol .rk-conf,
  .rk-idol .rk-flash { display: none; }
}