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

:root{
  --bg:#0a0a0f;
  --bg-card:rgba(255,255,255,.03);
  --bg-card-hover:rgba(255,255,255,.06);
  --text:#e0e0e8;
  --text-muted:#888899;
  --accent:#6c63ff;
  --accent2:#00d4aa;
  --border:rgba(255,255,255,.06);
  --radius:12px;
}

html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  font-size:15px;
}

/* ── Background Grid ── */
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    linear-gradient(rgba(108,99,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(108,99,255,.03) 1px,transparent 1px);
  background-size:60px 60px;
  pointer-events:none;
  z-index:0;
}

/* ── Glow Orbs ── */
.orb{
  position:fixed;
  border-radius:50%;
  filter:blur(120px);
  pointer-events:none;
  z-index:0;
}
.orb-1{width:500px;height:500px;background:rgba(108,99,255,.12);top:-150px;left:-100px}
.orb-2{width:400px;height:400px;background:rgba(0,212,170,.08);bottom:-100px;right:-100px}
.orb-3{width:300px;height:300px;background:rgba(255,107,157,.06);top:50%;left:60%}

/* ── Layout ── */
.container{
  position:relative;
  z-index:1;
  max-width:860px;
  margin:0 auto;
  padding:0 24px;
}

/* ── Hero ── */
.hero{
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:60px 0 32px;
}
.hero-name{
  font-size:clamp(2rem,5vw,3.2rem);
  font-weight:800;
  letter-spacing:-.03em;
  background:linear-gradient(135deg,#fff 0%,var(--accent) 50%,var(--accent2) 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  margin-bottom:12px;
}
.hero-name-ja{
  font-size:.45em;
  font-weight:400;
  -webkit-text-fill-color:rgba(255,255,255,.5);
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:16px;
}
.hero-tag{
  font-size:.75rem;
  font-weight:600;
  letter-spacing:.04em;
  padding:5px 14px;
  border-radius:20px;
  border:1px solid rgba(108,99,255,.25);
  color:var(--text-muted);
  background:rgba(108,99,255,.06);
}
.hero-contact{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--accent2);
  font-size:.95rem;
  font-family:"SF Mono",SFMono-Regular,Consolas,monospace;
  background:rgba(0,212,170,.08);
  padding:8px 16px;
  border-radius:8px;
  border:1px solid rgba(0,212,170,.15);
}

/* ── Nav dots ── */
.side-nav{
  position:fixed;
  right:24px;
  top:50%;
  transform:translateY(-50%);
  display:flex;
  flex-direction:column;
  gap:12px;
  z-index:100;
}
.side-nav a{
  width:10px;
  height:10px;
  border-radius:50%;
  background:rgba(255,255,255,.15);
  display:block;
  transition:all .3s;
}
.side-nav a.active{
  background:var(--accent);
  box-shadow:0 0 12px rgba(108,99,255,.5);
  transform:scale(1.3);
}
@media(max-width:768px){.side-nav{display:none}}

/* ── Sections ── */
section{padding:32px 0}

.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:12px;
}
.section-label::before{
  content:"";
  width:24px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
}
.section-title{
  font-size:clamp(1.3rem,3vw,1.7rem);
  font-weight:700;
  letter-spacing:-.02em;
  margin-bottom:16px;
}

/* ── Timeline ── */
.timeline{position:relative;padding-left:32px}
.timeline::before{
  content:"";
  position:absolute;
  left:6px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(to bottom,var(--accent),var(--accent2));
  border-radius:2px;
}
.timeline-item{
  position:relative;
  margin-bottom:12px;
  opacity:0;
  transform:translateX(-20px);
  transition:all .6s cubic-bezier(.16,1,.3,1);
}
.timeline-item.visible{opacity:1;transform:translateX(0)}
.timeline-item::before{
  content:"";
  position:absolute;
  left:-32px;top:10px;
  width:14px;height:14px;
  border-radius:50%;
  background:var(--bg);
  border:2px solid var(--accent);
  z-index:1;
}
.timeline-item:first-child::before{
  background:var(--accent);
  box-shadow:0 0 12px rgba(108,99,255,.4);
}
.timeline-period{
  font-size:.8rem;
  font-weight:600;
  color:var(--accent2);
  font-family:"SF Mono",SFMono-Regular,Consolas,monospace;
  margin-bottom:2px;
}
.timeline-role{font-size:1rem;font-weight:500}
.timeline-role a{color:var(--accent);text-decoration:none;border-bottom:1px solid rgba(108,99,255,.3);transition:all .3s}
.timeline-role a:hover{color:#8b85ff;border-color:var(--accent)}

/* ── Cards ── */
.card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:12px 16px;
  margin-bottom:6px;
  transition:all .4s cubic-bezier(.16,1,.3,1);
  opacity:0;
  transform:translateY(20px);
}
.card.visible{opacity:1;transform:translateY(0)}
.card:hover{
  background:var(--bg-card-hover);
  border-color:rgba(108,99,255,.2);
  transform:translateY(-2px);
  box-shadow:0 8px 32px rgba(0,0,0,.3);
}
.card-date{
  font-size:.75rem;
  font-weight:600;
  color:var(--accent2);
  font-family:"SF Mono",SFMono-Regular,Consolas,monospace;
  margin-bottom:6px;
}
.card-title{
  font-size:.95rem;
  font-weight:500;
  margin-bottom:4px;
}
.card-title a{
  color:var(--text);
  text-decoration:none;
  transition:color .3s;
}
.card-title a:hover{color:var(--accent)}
.card-venue{
  font-size:.8rem;
  color:var(--text-muted);
}

/* ── Patent Accordion ── */
.patent-group{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  margin-bottom:6px;
  overflow:hidden;
  opacity:0;
  transform:translateY(20px);
  transition:all .4s cubic-bezier(.16,1,.3,1);
}
.patent-group.visible{opacity:1;transform:translateY(0)}
.patent-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 20px;
  cursor:pointer;
  user-select:none;
  transition:background .3s;
}
.patent-header:hover{background:var(--bg-card-hover)}
.patent-header-left{display:flex;align-items:center;gap:12px}
.patent-badge{
  font-size:.7rem;
  font-weight:700;
  padding:4px 10px;
  border-radius:6px;
  letter-spacing:.05em;
}
.badge-primary{background:rgba(108,99,255,.15);color:var(--accent)}
.badge-secondary{background:rgba(0,212,170,.12);color:var(--accent2)}
.patent-header-title{font-weight:600;font-size:.95rem}
.patent-chevron{
  width:20px;height:20px;
  transition:transform .3s;
  color:var(--text-muted);
}
.patent-group.open .patent-chevron{transform:rotate(180deg)}
.patent-body{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s cubic-bezier(.16,1,.3,1);
}
.patent-group.open .patent-body{max-height:2000px}
.patent-list{
  padding:0 20px 14px;
  list-style:none;
}
.patent-item{
  padding:8px 0;
  border-top:1px solid var(--border);
}
.patent-item-date{
  font-size:.72rem;
  color:var(--text-muted);
  font-family:"SF Mono",SFMono-Regular,Consolas,monospace;
  margin-bottom:2px;
}
.patent-item-id a{
  font-size:.85rem;
  color:var(--accent);
  text-decoration:none;
  font-weight:500;
  transition:color .3s;
}
.patent-item-id a:hover{color:#8b85ff}
.patent-item-desc{
  font-size:.82rem;
  color:var(--text-muted);
  margin-top:2px;
}

/* ── Footer ── */
footer{
  text-align:center;
  padding:28px 0;
  color:var(--text-muted);
  font-size:.8rem;
}
footer .line{
  width:40px;height:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  border-radius:2px;
  margin:0 auto 16px;
}

/* ── Animations ── */
.fade-in{
  opacity:0;
  transform:translateY(30px);
  transition:all .8s cubic-bezier(.16,1,.3,1);
}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* ── Responsive ── */
@media(max-width:600px){
  section{padding:24px 0}
  .card{padding:10px 14px}
  .patent-header{padding:10px 14px}
  .patent-list{padding:0 14px 10px}
}