@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;600;700&display=swap');

/* ベース */
:root{
  --pink:#FF77AA;
  --pink-weak:#FFF4F7;
  --text:#333;
  --bg:#fff;
  --radius:16px;
}
*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family:'Noto Sans JP', system-ui, -apple-system, sans-serif;
  color:var(--text);
  background:var(--bg);
  scroll-behavior:smooth;
  -webkit-tap-highlight-color: transparent;
}
.container{
  width:100%;
  max-width:1080px;
  padding-left:clamp(16px, 4vw, 32px);
  padding-right:clamp(16px, 4vw, 32px);
  margin:0 auto;
}

/* Hero */
.hero{
  position:relative;
  min-height:100svh;
  display:grid;
  place-items:center;
  color:#fff;
  background: linear-gradient(135deg, #FF77AA 0%, #FFB6C1 100%);
  overflow:hidden;
  padding-top:env(safe-area-inset-top);
  padding-bottom:env(safe-area-inset-bottom);
}
#heroVideo, .hero-bg{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  filter:brightness(0.75);
  pointer-events:none;
  -webkit-user-drag:none; user-select:none;
}
.hero-overlay{
  position:relative; z-index:1; text-align:center;
  max-width:800px;
}
.hero h1{
  font-size:clamp(28px, 5vw, 48px);
  letter-spacing:.02em;
  margin:0 0 .5rem;
}
.hero p{
  font-size:clamp(14px, 2.5vw, 18px);
  margin:0 0 1.25rem;
}
.btn-primary{
  display:inline-block;
  background:#fff; color:var(--pink);
  padding:.9rem 1.4rem;
  border-radius:999px;
  font-weight:700;
  text-decoration:none;
  transition:.25s ease;
  box-shadow:0 6px 16px rgba(0,0,0,.15);
}
.btn-primary:hover{ transform:translateY(-2px); background:#FFE6EE; }

/* セクション */
section{ padding: clamp(56px, 8vw, 88px) 0; }
h2{
  text-align:center; color:var(--pink); margin:0 0 1.25rem;
  font-size:clamp(22px, 3.5vw, 28px);
}

/* About */
.about p{ text-align:center; line-height:1.9; }

/* ▼ ui-shot群の横並び対応 */
.ui-shots{
  display:flex;
  flex-direction:row; /* デフォルト＝スマホは横並び */
  align-items:center;
  gap:16px;
  margin-top:18px;
}
.ui-shot{
  width:100%; max-width:320px;
  border-radius:12px;
  box-shadow:0 4px 10px rgba(0,0,0,.08);
  -webkit-user-select:none; user-select:none;
  -webkit-touch-callout:none;
}

/* Features */
/* ギャラリー */
.gallery{
  padding:80px 20px;
  background:white;
  text-align:center;
}
.gallery-scroll{
  display:flex;
  overflow-x:auto;
  gap:20px;
  padding:10px;
  scroll-snap-type:x mandatory;
}
@media (min-width: 1024px){
  .gallery-scroll{
    justify-content: center;  /* 中央寄せ */
    overflow-x: visible;      /* 横スクロール無効化 */
  }
}
.gallery-scroll img{
  flex:0 0 auto;
  width:240px;
  border-radius:12px;
  scroll-snap-align:center;
  transition:.3s;
}
.gallery-scroll img:hover{
  transform:scale(1.05);
}

.simulation-section {
  padding: 50px 20px;
  background: #fff5fa;
  border-radius: 12px;
  margin-top: 60px;
  margin-bottom: 60px;
}

.simulation-section h2 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 20px;
  color: #FE76AA;
}

.sim-box {
  max-width: 400px;
  margin: 0 auto;
  background: #ffffff;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.sim-box label {
  display: block;
  margin-top: 15px;
  font-weight: bold;
  color: #333;
}

.sim-box input {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  font-size: 16px;
  border: 1px solid #ddd;
  border-radius: 8px;
}

.sim-box button {
  width: 100%;
  margin-top: 20px;
  padding: 12px;
  background: #FE76AA;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 18px;
  cursor: pointer;
  transition: 0.3s;
}

.sim-box button:hover {
  opacity: 0.85;
}

.sim-result {
  margin-top: 25px;
  font-size: 18px;
  line-height: 1.6;
}

.sim-result p {
  margin: 8px 0;
}

.simulation-section {
  padding: 50px 20px;
  background: #fff5fa;
  border-radius: 12px;
  margin-top: 60px;
}

.simulation-section h2 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 20px;
  color: #fe4b91;
}

.sim-box {
  max-width: 450px;
  margin: 0 auto;
  background: #ffffff;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.sim-box label {
  display: block;
  margin-top: 15px;
  font-weight: bold;
  color: #333;
}

.sim-box input {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  font-size: 16px;
  border: 1px solid #ddd;
  border-radius: 8px;
}

.sim-box button {
  width: 100%;
  margin-top: 25px;
  padding: 12px;
  background: #fe4b91;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 18px;
  cursor: pointer;
  transition: 0.3s;
}

.sim-box button:hover {
  opacity: 0.85;
}

.sim-result {
  margin-top: 25px;
  font-size: 18px;
  line-height: 1.6;
}



/* Story */
.story{
  background:#FFF9FA; border-radius:var(--radius);
}
.story .story-thumb{
  width:100%; max-width:680px; display:block; margin:18px auto 0; border-radius:12px;
  -webkit-user-select:none; user-select:none; -webkit-touch-callout:none; -webkit-user-drag:none;
}

/* Crowdfunding / Release */
.crowdfunding, .release{
  text-align:center; background:linear-gradient(90deg, #FFE6EE 0%, #FFF 100%);
  border-radius:var(--radius);
}
.release{ background:var(--pink-weak); }

/* ================================
   手紙ギミック（.story 内）
   ================================ */

.letter-wrap{
  max-width: 640px;
  margin: 16px auto 0;
  text-align: center;
}

.letter-hint{
  font-size: 0.95rem;
  color: #888;
  margin-top: 10px;
}

/* 封筒本体 */
.envelope{
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;              /* 封筒の比率 */
  margin: 0 auto;
  border-radius: 14px;
  background:
    linear-gradient(180deg, #fff 0%, #f6f6f6 100%);
  /* ▼ 封筒の背景画像を使う場合は下記を有効化して画像パスを指定
     background-image: url('envelope_texture.jpg');
     background-size: cover;
     background-position: center; */
  box-shadow: 0 18px 40px rgba(0,0,0,.12), 0 4px 10px rgba(0,0,0,.06);
  cursor: pointer;
  overflow: hidden;
  perspective: 1000px;              /* フラップの3D回転に奥行き */
  -webkit-user-select: none; user-select: none;
  touch-action: manipulation;
}

/* 封筒のフチ装飾（任意） */
.envelope::after{
  content:"";
  position: absolute;
  inset: 0;
  border-radius: 14px;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.06);
  pointer-events: none;
}

/* 封筒のフラップ（上側の三角） */
.flap{
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 52%;
  background: linear-gradient(180deg, #ffe7ef 0%, #ffd3e2 100%);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  transform-origin: top center;
  transform: rotateX(0deg);
  transition: transform .6s ease;
  backface-visibility: hidden;
}

/* 便箋（紙） */
.paper{
  position: absolute;
  left: 6%; right: 6%;
  top: 16%;
  /* 初期状態：封筒の中に沈めておく */
  transform: translateY(55%);
  opacity: 0;
  transition: transform .65s cubic-bezier(.22,.61,.36,1), opacity .35s ease;
  will-change: transform, opacity;
  z-index: 2;
}

.paper-content{
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  padding: clamp(16px, 3vw, 24px);
  text-align: left;
  line-height: 1.9;
  color: #333;
  max-height: min(80vh, 680px); /* ← 高さを拡張 */
  overflow-y: auto;
  overscroll-behavior: contain;
}

/* 封筒開封時の最低高さも少し伸ばす */
.letter-wrap.open .envelope{
  min-height: 520px; /* ← 以前の値より+100pxほど */
  overflow: visible;
}

/* 便箋内の写真（任意） */
.paper-photo{
  display: block;
  width: 100%;
  border-radius: 10px;
  margin-top: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,.08);
  -webkit-user-select: none; user-select: none; -webkit-user-drag: none;
}

/* 開いた状態（.open） */
.letter-wrap.open .flap{
  transform: rotateX(180deg);
}

.letter-wrap.open .paper{
  transform: translateY(-8%);
  opacity: 1;
}

/* 「開く/閉じる」によるヒントの変化（任意） */
.letter-wrap.open + .letter-hint{
  opacity: .85;
}

/* 低モーション設定に配慮 */
@media (prefers-reduced-motion: reduce){
  .flap, .paper{
    transition: none !important;
  }
}

/* レスポンシブ微調整 */
@media (max-width: 599px){
  .paper-content{ max-height: 56vh; }
}
@media (min-width: 1024px){
  .paper-content{ max-height: 62vh; }
}


/* Footer */
footer{
  background:var(--pink); color:#fff; margin-top:40px;
}
.footer-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; padding:18px 0;
}
footer .sns a{
  color:#fff; margin:0 8px; font-size:1.35rem; text-decoration:none; transition:.2s;
}
footer .sns a:hover{ opacity:.85; }

/* フェードイン */
section{ opacity:0; transform:translateY(40px); will-change:transform, opacity; }
.fade-in{ opacity:1; transform:translateY(0); transition: all .8s ease; }

/* 画像選択抑制 */
img, video{
  -webkit-touch-callout:none; -webkit-user-select:none; user-select:none; -webkit-user-drag:none;
  pointer-events:auto;
}

/* ---------------------------
   レスポンシブ
   --------------------------- */

/* モバイル（〜599px） */
@media (max-width: 599px){
  .features .feature-list{ grid-template-columns: 1fr; }
  .footer-inner{ flex-direction:column; text-align:center; }
  .ui-shots{ flex-direction:column; } /* ←スマホは縦 */
}

/* タブレット（600〜1023px） */
@media (min-width:600px) and (max-width:1023px){
  .features .feature-list{ grid-template-columns: repeat(2, 1fr); }
  .ui-shots{
    flex-direction:row; /* ←タブレットは横 */
    justify-content:center;
    gap:24px;
  }
}

/* PC（1024px〜） */
@media (min-width:1024px){
  .features .feature-list{ grid-template-columns: repeat(3, 1fr); }
  .ui-shots{
    flex-direction:row; /* ←PCも横 */
    justify-content:center;
    gap:32px;
  }
}

/* ========== クラファン内ボタン行 ========== */
.btn-row{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 14px;
}

/* ========== アウトラインボタン ========== */
.btn-outline{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: .85rem 1.25rem;
  border-radius: 999px;
  font-weight: 700;
  background: transparent;
  color: var(--pink);
  border: 2px solid var(--pink);
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease, transform .15s ease;
}
.btn-outline:hover{
  background: #FFFFFF;
  transform: translateY(-1px);
}
.btn-outline:active{
  transform: translateY(0);
}
.btn-outline i{ font-size: 1.1rem; line-height: 1; }

/* ================================
   WowMeの特徴（2×2グリッド）
   ================================ */
.features-grid{
  text-align: center;
  background: var(--pink-weak);
  border-radius: var(--radius);
  padding: clamp(56px, 8vw, 88px) 0;
  margin-top: 60px;
  margin-bottom: 60px;
}
.features-grid h2{
  color: var(--pink);
  font-size: clamp(22px, 3.5vw, 28px);
  margin-bottom: 40px;
}
.features-grid .grid-box{
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}
.features-grid .grid-item{
  background: #fff;
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 4px 12px rgba(0,0,0,.08);
  transition: transform .25s ease, box-shadow .25s ease;
}
.features-grid .grid-item:hover{
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0,0,0,.12);
}
.features-grid .grid-item h3{
  margin-bottom: 12px;
  color: var(--pink);
  font-size: clamp(18px, 2.8vw, 20px);
}
.features-grid .grid-item p{
  font-size: clamp(14px, 2.4vw, 16px);
  line-height: 1.8;
  color: #444;
}

/* レスポンシブ設定（2×2配置） */
@media (min-width: 768px){
  .features-grid .grid-box{
    grid-template-columns: repeat(2, 1fr);
  }
}

/* === タレント募集セクション === */
.join-talent {
  background: linear-gradient(135deg, #FFE6EE 0%, #FFFFFF 100%);
  text-align: center;
  padding: 100px 20px;
  color: var(--pink);
  margin-bottom: 60px;
}

.join-talent h2 {
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 700;
  margin-bottom: 16px;
}

.join-talent p {
  color: #555;
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 40px;
}

.btn-talent {
  background: var(--pink);
  color: #fff;
  padding: 14px 40px;
  border-radius: 50px;
  font-weight: 700;
  text-decoration: none;
  display: inline-block;
  transition: all .3s ease;
  box-shadow: 0 6px 14px rgba(255, 119, 170, 0.3);
}

.btn-talent:hover {
  background: #ff5f99;
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(255, 119, 170, 0.4);
}