:root{
  --brand-blue:#3158FF;
  --bg-pastel:#FEEFF5;
  --text:#0E0E10;
  --muted:#6B6B76;
  --card:#FFFFFF;
}

*{box-sizing:border-box;margin:0;padding:0}

html{height:100%}

body{
  min-height:100%;
  font-family: -apple-system, system-ui, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color:var(--text);
  background:linear-gradient(180deg, var(--bg-pastel) 0%, #FFF5F9 50%, #FFFFFF 100%);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  display:flex;
  flex-direction:column;
}

.notice{
  display:block;
  position:sticky;
  top:0;
  z-index:100;
  background:#FEEFF5;
  border-bottom:1px solid rgba(49,88,255,.15);
  padding:18px 20px;
  text-align:center;
}

.notice-text{
  font-size:18px;
  line-height:1.4;
  max-width:600px;
  margin:0 auto;
  font-weight:600;
  color:#0E0E10;
}

.notice-text strong{
  font-weight:700;
  color:#3158FF;
}

.main-content{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:40px 20px;
  min-height:calc(100vh - 120px);
}

.container{
  width:100%;
  max-width:600px;
  text-align:center;
}

.brand-logo{
  position:relative;
  font-size:clamp(48px,10vw,72px);
  font-weight:800;
  margin:0 0 32px;
  letter-spacing:-0.03em;
  display:inline-block;
  animation:float 3s ease-in-out infinite;
}

.brand-no{
  color:var(--text);
}

.brand-vap{
  color:var(--brand-blue);
}

.smoke{
  position:absolute;
  width:30px;
  height:30px;
  background:radial-gradient(circle, rgba(107,107,118,0.4) 0%, rgba(107,107,118,0) 70%);
  border-radius:50%;
  opacity:0;
  top:-10px;
  right:-15px;
}

.smoke-1{
  animation:smoke-rise 3s ease-out infinite;
  animation-delay:0s;
}

.smoke-2{
  animation:smoke-rise 3s ease-out infinite;
  animation-delay:1s;
}

.smoke-3{
  animation:smoke-rise 3s ease-out infinite;
  animation-delay:2s;
}

@keyframes float{
  0%, 100%{
    transform:translateY(0px);
  }
  50%{
    transform:translateY(-10px);
  }
}

@keyframes smoke-rise{
  0%{
    opacity:0;
    transform:translateY(0) translateX(0) scale(0.5);
  }
  10%{
    opacity:0.6;
  }
  50%{
    opacity:0.3;
    transform:translateY(-40px) translateX(15px) scale(1.2);
  }
  100%{
    opacity:0;
    transform:translateY(-80px) translateX(30px) scale(1.5);
  }
}

.headline{
  font-size:clamp(32px,7vw,56px);
  line-height:1.1;
  font-weight:700;
  margin:0 0 40px;
  color:var(--text);
  letter-spacing:-0.02em;
}

.appstore-btn{
  display:inline-block;
  margin:0 0 48px;
  transition:all .3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius:12px;
  overflow:hidden;
  filter:drop-shadow(0 4px 12px rgba(0,0,0,0.15));
  position:relative;
}

.appstore-btn::before{
  content:'';
  position:absolute;
  inset:0;
  border-radius:12px;
  padding:1px;
  background:linear-gradient(135deg, rgba(49,88,255,0.3), rgba(255,255,255,0.1));
  -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  opacity:0;
  transition:opacity .3s ease;
}

.appstore-btn:hover{
  transform:translateY(-2px) scale(1.02);
  filter:drop-shadow(0 8px 20px rgba(49,88,255,0.25)) drop-shadow(0 4px 12px rgba(0,0,0,0.2));
}

.appstore-btn:hover::before{
  opacity:1;
}

.appstore-btn:active{
  transform:translateY(0) scale(0.99);
  filter:drop-shadow(0 2px 8px rgba(0,0,0,0.15));
}

.appstore-badge{
  width:190px;
  height:auto;
  display:block;
}

.app-icon-wrapper{
  margin:0 auto;
  max-width:200px;
}

.app-icon{
  width:100%;
  height:auto;
  border-radius:22%;
  box-shadow:0 12px 40px rgba(49,88,255,.15), 0 4px 12px rgba(0,0,0,.08);
  display:block;
  animation:pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow{
  0%, 100%{
    box-shadow:0 12px 40px rgba(49,88,255,.15), 0 4px 12px rgba(0,0,0,.08);
    transform:scale(1);
  }
  50%{
    box-shadow:0 16px 50px rgba(49,88,255,.25), 0 6px 16px rgba(0,0,0,.12);
    transform:scale(1.02);
  }
}

.footer{
  padding:24px 20px;
  text-align:center;
  border-top:1px solid rgba(0,0,0,.06);
  background:#FFFFFF;
}

.footer-links{
  display:flex;
  gap:20px;
  justify-content:center;
  align-items:center;
  flex-wrap:wrap;
  margin-bottom:12px;
}

.footer-links a{
  color:var(--muted);
  text-decoration:none;
  font-size:14px;
  transition:color .2s ease;
}

.footer-links a:hover{
  color:var(--text);
  text-decoration:underline;
}

.footer-copy{
  font-size:13px;
  color:#999;
}

@media (max-width:640px){
  .notice{
    padding:16px;
  }
  .notice-text{
    font-size:16px;
    line-height:1.45;
  }
  .brand-logo{
    font-size:48px;
    margin-bottom:24px;
  }
  
  .headline{
    font-size:36px;
    margin-bottom:32px;
  }
  
  .appstore-badge{
    width:160px;
  }
  
  .app-icon-wrapper{
    max-width:160px;
  }
  
  .main-content{
    padding:32px 16px;
    min-height:calc(100vh - 100px);
  }
}

@media (max-width:375px){
  .headline{
    font-size:32px;
  }
  
  .appstore-badge{
    width:140px;
  }
  
  .app-icon-wrapper{
    max-width:140px;
  }
}

@media (min-width:641px) and (max-width:1024px){
  .headline{
    font-size:48px;
  }
}

@media (orientation:landscape) and (max-height:600px){
  .main-content{
    padding:20px 16px;
    min-height:auto;
  }
  
  .headline{
    font-size:28px;
    margin-bottom:24px;
  }
  
  .appstore-btn{
    margin-bottom:24px;
  }
  
  .app-icon-wrapper{
    max-width:120px;
  }
}