/* ---- banner02 スタイルルール ---- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

/* 300×250のデザイン全体を、幅400pxを上限に同比率で拡大縮小する。 */
html {
  font-size: min(0.3333333333vw, 1.3333333333px);
}

html, body {
  max-width: 400px;
  width: 100%;
  height: 250rem;
  overflow: hidden;
  font-family: 'M PLUS Rounded 1c', sans-serif;
  background-color: #180828;
}

/* バナー容器 */
.banner-container {
  display: block;
  width: 100%;
  height: 250rem;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: #ffffff;
  background: radial-gradient(circle at 20% 20%, #701a75 0%, #4c1d95 50%, #180828 100%);
  cursor: pointer;
}

/* オーロラ光彩輝き */
.aurora-bg {
  position: absolute;
  bottom: -50rem;
  left: -40rem;
  width: 220rem;
  height: 220rem;
  background: radial-gradient(circle, rgba(244, 63, 94, 0.4) 0%, rgba(139, 92, 246, 0) 70%);
  border-radius: 50%;
  filter: blur(20rem);
  animation: auroraPulse 5s infinite alternate ease-in-out;
}

/* 流れ星・キラキラ */
.sparkle {
  position: absolute;
  background: #fef08a;
  border-radius: 50%;
  opacity: 0;
  animation: sparkleAnim 2.5s infinite ease-in-out;
}

.sparkle-1 { top: 20rem; right: 80rem; width: 4rem; height: 4rem; animation-delay: 0.1s; }
.sparkle-2 { top: 110rem; left: 15rem; width: 5rem; height: 5rem; animation-delay: 0.9s; }
.sparkle-3 { bottom: 35rem; right: 30rem; width: 4rem; height: 4rem; animation-delay: 1.6s; }

/* 3Dカードスライド演出 */
.card-stack {
  position: absolute;
  top: 15rem;
  right: 15rem;
  width: 100rem;
  height: 140rem;
  perspective: 600rem;
  z-index: 4;
}

.card-item {
  position: absolute;
  width: 76rem;
  height: 115rem;
  border-radius: 8rem;
  box-shadow: 0 12rem 28rem rgba(0,0,0,0.6), 0 0 10rem rgba(244, 63, 94, 0.3);
  border: 1.5rem solid rgba(253, 164, 175, 0.5);
  overflow: hidden;
  transition: transform 0.4s ease;
}

.card-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 1枚目（裏面） */
.card-back-1 {
  top: 0;
  right: 15rem;
  transform: rotate(-10deg) scale(0.9);
  opacity: 0;
  animation: cardSlide1 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s forwards;
}

/* 2枚目（メイン表面/裏面） */
.card-back-2 {
  top: 10rem;
  right: 0;
  transform: rotate(6deg) scale(1);
  opacity: 0;
  animation: cardSlide2 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) 0.5s forwards;
}

/* アプリ画面スクショ（カレンダー画面） - さらに右下へ配置 */
.app-screen-wrapper {
  position: absolute;
  bottom: -135rem;
  right: -60rem;
  width: 200rem;
  z-index: 5;
  filter: drop-shadow(0 18rem 35rem rgba(0,0,0,0.85));
  opacity: 0;
  transform: translateY(60rem) rotate(-5deg);
  animation: screenRise 0.9s cubic-bezier(0.34, 1.56, 0.64, 1) 0.7s forwards;
}

.app-screen-wrapper img {
  width: 100%;
  height: auto;
  display: block;
}

/* ハシビロさんキャラアイコン - 微調整 */
.char-icon {
  position: absolute;
  top: 10rem;
  right: 75rem;
  width: 65rem;
  height: auto;
  z-index: 6;
  filter: drop-shadow(0 6rem 12rem rgba(0,0,0,0.5));
  opacity: 0;
  transform: scale(0.5) rotate(-15deg);
  animation: charPop 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) 0.9s forwards;
}

/* コンテンツエリア */
.content-box {
  position: absolute;
  top: 18rem;
  left: 16rem;
  width: 175rem;
  z-index: 10;
}

/* ブランドバッジ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4rem;
  padding: 4rem 11rem;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8rem);
  -webkit-backdrop-filter: blur(8rem);
  border: 1.5rem solid #fecdd3;
  border-radius: 20rem;
  font-size: 11rem;
  font-weight: 800;
  color: #ffffff;
  opacity: 0;
  transform: translateY(-8rem);
  animation: fadeInDown 0.6s ease-out 0.9s forwards;
  box-shadow: 0 4rem 10rem rgba(0,0,0,0.5);
}

.headline {
  margin-top: 10rem;
  font-size: 19.5rem;
  line-height: 1.3;
  font-weight: 800;
  color: #ffffff;
  text-shadow: 0 2rem 10rem rgba(0, 0, 0, 0.95);
  opacity: 0;
  transform: translateX(-20rem);
  animation: fadeInLeft 0.7s ease-out 1.1s forwards;
}

.headline span.highlight {
  color: #fbbf24;
  background: none;
  -webkit-background-clip: initial;
  -webkit-text-fill-color: initial;
  filter: none;
  text-shadow: 0 2rem 10rem rgba(0, 0, 0, 0.95);
}

.subline {
  margin-top: 6rem;
  font-size: 11.5rem;
  color: #f1f5f9;
  font-weight: 700;
  line-height: 1.4;
  text-shadow: 0 2rem 8rem rgba(0, 0, 0, 0.9);
  opacity: 0;
  transform: translateX(-15rem);
  animation: fadeInLeft 0.7s ease-out 1.3s forwards;
}

/* CTAボタン */
.cta-button {
  position: absolute;
  bottom: 20rem;
  left: 16rem;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6rem;
  padding: 10rem 18rem;
  background: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%);
  color: #ffffff;
  font-size: 13rem;
  font-weight: 800;
  border-radius: 30rem;
  box-shadow: 0 6rem 20rem rgba(236, 72, 153, 0.5), 0 0 0 2rem rgba(255, 255, 255, 0.25);
  opacity: 0;
  transform: scale(0.85);
  animation: popIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 1.5s forwards, buttonBounce 2.8s infinite 2.2s ease-in-out;
  transition: all 0.25s ease;
}

.cta-arrow {
  font-family: 'Outfit', sans-serif;
  font-size: 14rem;
  transition: transform 0.2s ease;
}

/* ---- KEYFRAMES ---- */
@keyframes auroraPulse {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.3); opacity: 0.9; }
}

@keyframes sparkleAnim {
  0%, 100% { opacity: 0; transform: scale(0.5); }
  50% { opacity: 1; transform: scale(1.4); }
}

@keyframes cardSlide1 {
  to {
    opacity: 0.85;
    transform: rotate(-12deg) scale(0.95);
  }
}

@keyframes cardSlide2 {
  to {
    opacity: 1;
    transform: rotate(8deg) scale(1);
  }
}

@keyframes screenRise {
  to {
    opacity: 1;
    transform: translateY(0) rotate(-4deg);
  }
}

@keyframes charPop {
  to {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
}

@keyframes fadeInDown {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  to { opacity: 1; transform: translateX(0); }
}

@keyframes popIn {
  to { opacity: 1; transform: scale(1); }
}

@keyframes buttonBounce {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 6rem 20rem rgba(236, 72, 153, 0.5), 0 0 0 0 rgba(236, 72, 153, 0.6);
  }
  50% {
    transform: scale(1.03);
    box-shadow: 0 8rem 26rem rgba(236, 72, 153, 0.75), 0 0 0 8rem rgba(236, 72, 153, 0);
  }
}

/* ホバー */
.banner-container:hover .cta-button {
  transform: scale(1.06);
  background: linear-gradient(135deg, #f43f5e 0%, #7c3aed 100%);
}

.banner-container:hover .cta-arrow {
  transform: translateX(3rem);
}

.banner-container:hover .app-screen-wrapper {
  transform: translateY(-4rem) rotate(-2deg);
  transition: transform 0.3s ease;
}