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

:root{
  --bg:#F5F0FA;
  --card:#FFFFFF;
  --text:#262154;
  --text-sub:#6B5C8A;
  --accent:#B57EDC;
  --accent-deep:#9D7CD8;
  --line:rgba(38,33,84,.1);
  --shadow:0 4px 30px rgba(38,33,84,.08);
  --shadow-hover:0 8px 50px rgba(181,126,220,.2);
  --ease:cubic-bezier(.17,.67,0,1.85);
  --r:12px;
}

[data-theme="dark"]{
  --bg:#15121F;
  --card:#1E1A2E;
  --text:#E6D7F5;
  --text-sub:#9988B5;
  --accent:#C9A0E8;
  --accent-deep:#B57EDC;
  --line:rgba(201,160,232,.1);
  --shadow:0 4px 30px rgba(0,0,0,.3);
  --shadow-hover:0 8px 50px rgba(201,160,232,.15);
}

html{scroll-behavior:smooth}
body{
  font-family:"Montserrat","Noto Sans JP",sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.6;overflow-x:hidden;
  transition:background .4s,color .4s;
  letter-spacing:.02em;
}

/* Nav */
#nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 48px;
  transition:all .3s var(--ease);
}
#nav.scrolled{
  background:var(--bg);
  backdrop-filter:blur(20px);
  box-shadow:0 1px 0 var(--line);
  padding:14px 48px;
}
.nav-logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text);font-weight:700;font-size:.85rem;letter-spacing:.1em}
.nav-avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;border:2px solid var(--accent)}
.nav-links{display:flex;gap:32px}
.nav-links a{color:var(--text-sub);text-decoration:none;font-size:.8rem;font-weight:600;letter-spacing:.1em;transition:color .2s}
.nav-links a:hover{color:var(--accent)}
.theme-toggle{background:none;border:1px solid var(--line);border-radius:50%;width:34px;height:34px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-sub);transition:all .2s}
.theme-toggle:hover{border-color:var(--accent);color:var(--accent)}
.i-moon{display:none}
[data-theme="dark"] .i-sun{display:none}
[data-theme="dark"] .i-moon{display:block}

/* Hero */
#hero{
  position:relative;height:100vh;min-height:600px;
  display:flex;align-items:center;
  overflow:hidden;
}
.hero-img{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  transform:scale(1.1);
  transition:transform 2.5s var(--ease);
}
#hero.loaded .hero-img{transform:scale(1)}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(38,33,84,.35) 0%,rgba(38,33,84,.1) 50%,rgba(181,126,220,.15) 100%);
}
[data-theme="dark"] .hero-overlay{
  background:linear-gradient(135deg,rgba(21,18,31,.6) 0%,rgba(21,18,31,.3) 50%,rgba(21,18,31,.5) 100%);
}
.hero-content{
  position:relative;z-index:2;
  padding-left:8vw;max-width:700px;
}
.hero-jp{
  font-family:"Cormorant Garamond",serif;
  font-style:italic;font-size:1.5rem;
  color:rgba(255,255,255,.8);
  margin-bottom:8px;letter-spacing:.15em;
  opacity:0;transform:translateY(20px);
  transition:opacity .8s .3s,transform .8s .3s var(--ease);
}
#hero.loaded .hero-jp{opacity:1;transform:none}
.hero-name{
  font-family:"Montserrat",sans-serif;
  font-size:clamp(3rem,9vw,6rem);
  font-weight:800;line-height:.95;
  color:#fff;letter-spacing:-.02em;
  margin-bottom:16px;
  opacity:0;transform:translateY(30px);
  transition:opacity 1s .5s,transform 1s .5s var(--ease);
}
#hero.loaded .hero-name{opacity:1;transform:none}
.hero-tag{
  font-size:.9rem;font-weight:500;
  color:rgba(255,255,255,.7);
  letter-spacing:.2em;text-transform:uppercase;
  opacity:0;transform:translateY(20px);
  transition:opacity .8s .8s,transform .8s .8s var(--ease);
}
#hero.loaded .hero-tag{opacity:1;transform:none}

/* Hero SNS bar */
.hero-sns{
  position:absolute;bottom:40px;right:48px;z-index:3;
  display:flex;gap:12px;
  opacity:0;transform:translateY(30px);
  transition:opacity .8s 1.2s,transform .8s 1.2s var(--ease);
}
#hero.loaded .hero-sns{opacity:1;transform:none}
.hero-sns a{
  width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.15);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.25);
  display:flex;align-items:center;justify-content:center;
  color:#fff;text-decoration:none;font-size:.7rem;font-weight:700;
  transition:all .2s var(--ease);
}
.hero-sns a:hover{
  background:var(--accent);
  transform:scale(1.08);
  border-color:var(--accent);
}

/* Scroll hint */
.scroll-hint{
  position:absolute;bottom:32px;left:50%;transform:translateX(-50%);
  z-index:3;display:flex;flex-direction:column;align-items:center;gap:8px;
  color:rgba(255,255,255,.5);font-size:.65rem;letter-spacing:.2em;
}
.scroll-hint i{width:1px;height:32px;background:rgba(255,255,255,.3);display:block;animation:scroll 2s ease-in-out infinite}
@keyframes scroll{0%,100%{transform:scaleY(.6);opacity:.3}50%{transform:scaleY(1);opacity:.8}}

/* Sections */
.section{padding:120px 0}
.container{max-width:1200px;margin:0 auto;padding:0 48px}
.sec-title{
  font-family:"Montserrat",sans-serif;
  font-size:clamp(1.8rem,5vw,3rem);
  font-weight:800;letter-spacing:-.01em;
  margin-bottom:64px;
  position:relative;display:inline-block;
}
.sec-title::after{
  content:'';display:block;
  width:40px;height:3px;
  background:var(--accent);
  margin-top:12px;border-radius:2px;
}

/* Gallery */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:16px;
}
.gallery-item{
  position:relative;border-radius:var(--r);overflow:hidden;
  cursor:pointer;aspect-ratio:3/4;
  box-shadow:var(--shadow);
  transition:all .4s var(--ease);
  opacity:0;transform:translateY(30px);
}
.gallery-item.show{opacity:1;transform:none}
.gallery-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px)}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.gallery-item:hover img{transform:scale(1.08)}

/* Links */
.links-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:16px;
}
.link-card{
  display:flex;align-items:center;gap:16px;
  padding:28px 24px;
  background:var(--card);border-radius:var(--r);
  text-decoration:none;color:var(--text);
  box-shadow:var(--shadow);
  transition:all .3s var(--ease);
  border:1px solid transparent;
}
.link-card:hover{
  transform:translateY(-4px) scale(1.02);
  box-shadow:var(--shadow-hover);
  border-color:var(--accent);
}
.link-icon{
  width:48px;height:48px;border-radius:10px;
  background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;font-weight:800;color:var(--accent);
  flex-shrink:0;
}
.link-card h3{font-size:.95rem;font-weight:700;letter-spacing:.05em}
.link-card p{font-size:.75rem;color:var(--text-sub)}

/* Footer */
footer{padding:60px 0 40px;border-top:1px solid var(--line)}
.footer-inner{display:flex;align-items:center;gap:16px}
.footer-avatar{width:40px;height:40px;border-radius:50%;border:2px solid var(--accent)}
.footer-name{font-weight:700;font-size:.9rem;letter-spacing:.05em}
.footer-copy{font-size:.75rem;color:var(--text-sub)}

/* Lightbox */
.lightbox{
  position:fixed;inset:0;z-index:9999;
  background:rgba(21,18,31,.95);
  backdrop-filter:blur(10px);
  display:none;align-items:center;justify-content:center;
}
.lightbox.active{display:flex}
.lightbox img{
  max-width:90vw;max-height:85vh;
  border-radius:8px;
  box-shadow:0 20px 80px rgba(0,0,0,.6);
}
.lb-close,.lb-prev,.lb-next{
  position:absolute;background:rgba(255,255,255,.1);
  border:none;color:#fff;font-size:1.6rem;
  width:48px;height:48px;border-radius:50%;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:all .2s;
}
.lb-close{top:24px;right:24px}
.lb-prev{left:24px;top:50%;transform:translateY(-50%)}
.lb-next{right:24px;top:50%;transform:translateY(-50%)}
.lb-close:hover,.lb-prev:hover,.lb-next:hover{background:var(--accent)}

/* Responsive */
@media(max-width:768px){
  #nav{padding:16px 20px}
  #nav.scrolled{padding:12px 20px}
  .nav-links{gap:20px}
  .nav-links a{font-size:.75rem}
  .hero-content{padding-left:24px}
  .hero-sns{right:20px;bottom:80px}
  .scroll-hint{display:none}
  .container{padding:0 20px}
  .section{padding:80px 0}
  .sec-title{margin-bottom:40px}
}
@media(max-width:480px){
  .hero-sns{flex-direction:column;gap:8px}
  .hero-sns a{width:38px;height:38px}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}