:root{
  --bg:#e7eef7; --ink:#1a2740; --muted:#5a6b82; --panel:rgba(255,255,255,.62);
  --accent:#2f6fed; --glow:#1f9d78; --wood:#b9895a; --line:rgba(26,39,64,.12);
  --font-display:"Newsreader",Georgia,serif;
  --font-body:"Sora",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.demo7-3d{
  margin:0;font-family:var(--font-body);color:var(--ink);line-height:1.65;
  background:
    radial-gradient(ellipse 70% 55% at 85% 15%,rgba(47,111,237,.16),transparent 55%),
    radial-gradient(ellipse 50% 45% at 10% 90%,rgba(31,157,120,.1),transparent 50%),
    linear-gradient(165deg,#dce6f3 0%,var(--bg) 40%,#f3f6fb 100%);
  min-height:100vh;overflow-x:hidden;position:relative;
}
a{color:var(--accent);text-decoration:none}
a:hover{color:#1d4fbf}

.scene-canvas{
  position:fixed;inset:0;width:100%;height:100%;
  z-index:0;pointer-events:none;display:block;
}
.scene-fallback{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(ellipse 60% 50% at 72% 42%,rgba(185,137,90,.22),transparent 55%),
    radial-gradient(ellipse 40% 40% at 80% 20%,rgba(47,111,237,.12),transparent 50%),
    linear-gradient(160deg,#d5e0ef,#eef3f9);
  display:none;
}
body.no-webgl .scene-fallback{display:block}
body.no-webgl .scene-canvas{display:none}

.site-header,.wrap,.site-footer,.hero{position:relative;z-index:2}
.site-header{
  position:sticky;top:0;z-index:40;
  background:rgba(231,238,247,.72);backdrop-filter:blur(16px) saturate(1.15);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:1180px;margin:0 auto;padding:1rem 1.25rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.brand{display:flex;gap:.75rem;align-items:center;text-decoration:none;color:inherit}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(145deg,var(--accent),#5b93ff 55%,var(--glow));
  color:#fff;display:grid;place-items:center;font-weight:700;font-size:.72rem;
  font-family:var(--font-body);letter-spacing:.04em;
  box-shadow:0 10px 24px rgba(47,111,237,.28);
}
.brand strong{font-family:var(--font-display);font-size:1.12rem;letter-spacing:-.02em;font-weight:650}
.brand small{display:block;color:var(--muted);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;font-weight:500}
.nav-toggle{
  display:none;border:1px solid var(--line);background:var(--panel);
  color:var(--ink);border-radius:999px;padding:.45rem .85rem;font-family:var(--font-body);
}
.nav{display:flex;flex-wrap:wrap;gap:.15rem;justify-content:flex-end;max-width:74%}
.nav-link{
  text-decoration:none;color:var(--muted);font-size:.76rem;font-weight:500;
  padding:.4rem .55rem;border-radius:999px;transition:color .2s,background .2s;
}
.nav-link.is-active,.nav-link:hover{
  color:var(--ink);background:rgba(47,111,237,.1);
  box-shadow:inset 0 0 0 1px rgba(47,111,237,.28);
}

.hero{
  min-height:100vh;min-height:100dvh;display:grid;align-items:center;
  position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    linear-gradient(90deg,rgba(231,238,247,.92) 0%,rgba(231,238,247,.72) 38%,rgba(231,238,247,.18) 62%,transparent 100%),
    linear-gradient(180deg,rgba(220,230,243,.35) 0%,transparent 30%,rgba(231,238,247,.5) 100%);
}
.hero-inner{
  position:relative;z-index:2;max-width:1180px;margin:0 auto;
  padding:clamp(5rem,12vh,7rem) 1.25rem 4rem;width:100%;
}
.hero-brand{
  margin:0 0 .7rem;font-family:var(--font-display);
  font-size:clamp(2.7rem,7.5vw,5.6rem);line-height:.95;letter-spacing:-.035em;
  font-weight:700;max-width:11ch;color:var(--ink);
  animation:riseIn 1s cubic-bezier(.2,.8,.2,1) both;
}
.hero h1{
  margin:0 0 .95rem;font-family:var(--font-body);font-weight:500;
  font-size:clamp(1.2rem,2.5vw,1.7rem);line-height:1.35;max-width:24ch;
  color:#334866;animation:riseIn 1s .1s cubic-bezier(.2,.8,.2,1) both;
}
.hero .hero-lead{
  max-width:36ch;color:var(--muted);margin:0 0 1.7rem;font-size:1.02rem;
  animation:riseIn 1s .2s cubic-bezier(.2,.8,.2,1) both;
}
.hero-cta{animation:riseIn 1s .3s cubic-bezier(.2,.8,.2,1) both}
@keyframes riseIn{
  from{opacity:0;transform:translateY(22px)}
  to{opacity:1;transform:none}
}
.btn{
  display:inline-flex;align-items:center;gap:.4rem;
  background:var(--accent);color:#fff;padding:.9rem 1.35rem;border-radius:14px;
  font-weight:600;text-decoration:none;font-size:.92rem;
  box-shadow:0 14px 32px rgba(47,111,237,.28);
  transition:transform .25s,filter .25s,box-shadow .25s;
}
.btn:hover{filter:brightness(1.05);transform:translateY(-2px);color:#fff;box-shadow:0 18px 36px rgba(47,111,237,.36)}
.btn-ghost{
  background:rgba(255,255,255,.55);color:var(--ink);border:1px solid var(--line);
  margin-left:.55rem;box-shadow:none;backdrop-filter:blur(8px);
}
.btn-ghost:hover{border-color:rgba(31,157,120,.45);color:var(--glow);background:rgba(255,255,255,.8)}

.wrap{max-width:1180px;margin:0 auto;padding:2.5rem 1.25rem 4.5rem}
.page-hero{padding:2rem 0 1.25rem;margin-bottom:1.75rem;border-bottom:1px solid var(--line)}
.page-hero h1{
  margin:0 0 .4rem;font-family:var(--font-display);font-weight:700;
  font-size:clamp(2.1rem,4.5vw,3.3rem);letter-spacing:-.03em;
}
.page-hero p{margin:0;color:var(--muted)}
.lead{font-size:1.06rem;color:var(--muted);max-width:60ch}
.section{margin-top:3rem}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1.1rem}
.section-head h2{margin:0;font-family:var(--font-display);font-size:clamp(1.5rem,3vw,2.15rem);letter-spacing:-.02em}
.section-head a{font-size:.9rem;color:var(--glow);font-weight:600}

.home-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:2rem;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.35);backdrop-filter:blur(8px);
}
.home-strip a{
  padding:1.35rem 1rem;text-decoration:none;color:inherit;
  border-right:1px solid var(--line);transition:background .25s,color .25s;
}
.home-strip a:last-child{border-right:0}
.home-strip a:hover{background:rgba(47,111,237,.08);color:var(--accent)}
.home-strip strong{display:block;font-family:var(--font-display);font-size:1.2rem;margin-bottom:.25rem}
.home-strip span{color:var(--muted);font-size:.86rem}

.mvp{display:grid;grid-template-columns:repeat(3,1fr);gap:1.35rem;margin-top:1.25rem}
.mvp article{padding:1.35rem 0 0;border-top:3px solid var(--accent)}
.mvp article:nth-child(2){border-top-color:var(--glow)}
.mvp article:nth-child(3){border-top-color:var(--wood)}
.mvp h3{margin:0 0 .55rem;font-family:var(--font-display);font-size:1.3rem;color:var(--ink)}

.course-grid,.people{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1rem}
.course,.person,.notice{
  background:var(--panel);border:1px solid var(--line);border-radius:18px;
  padding:1.2rem;backdrop-filter:blur(10px);
  transition:border-color .25s,transform .25s,box-shadow .25s;
}
.course:hover,.person:hover,.notice:hover{
  border-color:rgba(47,111,237,.4);transform:translateY(-3px);
  box-shadow:0 16px 36px rgba(26,39,64,.08);
}
.course h3,.person h3,.notice h3{margin:0 0 .45rem;font-family:var(--font-display)}
.course ul{margin:.6rem 0 0;padding-left:1.1rem;color:var(--muted);font-size:.92rem}
.meta,.fineprint,.note{color:var(--muted)}
.role{display:inline-block;margin-top:.35rem;font-size:.78rem;color:var(--glow);font-weight:600}

.data-table{
  width:100%;border-collapse:collapse;overflow:hidden;
  background:rgba(255,255,255,.55);border:1px solid var(--line);border-radius:16px;
  backdrop-filter:blur(8px);
}
.data-table th,.data-table td{padding:.85rem 1rem;border-bottom:1px solid var(--line);text-align:left}
.data-table th{
  background:rgba(47,111,237,.08);font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--accent);font-weight:600;
}
.amt{font-variant-numeric:tabular-nums;font-weight:600;color:var(--glow)}
.notes{color:var(--muted);padding-left:1.2rem}
.notes li{margin:.35rem 0}

.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin:1.5rem 0}
.stat{
  text-align:center;padding:1.2rem .8rem;border:1px solid var(--line);border-radius:18px;
  background:rgba(255,255,255,.55);backdrop-filter:blur(8px);
}
.stat strong{display:block;font-family:var(--font-display);font-size:2rem;color:var(--accent);line-height:1.1}
.stat span{color:var(--muted);font-size:.8rem}

.feature-list{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:.85rem}
.feature-list li{
  background:rgba(255,255,255,.55);border:1px solid var(--line);border-radius:16px;
  padding:1rem;backdrop-filter:blur(8px);
}
.feature-list strong{display:block;margin-bottom:.25rem;font-family:var(--font-display)}
.feature-list span{color:var(--muted);font-size:.92rem}

.chip{
  display:inline-block;padding:.28rem .55rem;margin:.2rem;border-radius:999px;
  font-size:.76rem;background:rgba(47,111,237,.1);border:1px solid rgba(47,111,237,.25);color:#1d4fbf;
}
.syllabus-block{
  margin:1.5rem 0;padding:1.4rem;border-radius:20px;border:1px solid var(--line);
  background:rgba(255,255,255,.55);backdrop-filter:blur(8px);
}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.notice time{display:block;font-size:.8rem;color:var(--accent);margin-bottom:.35rem;letter-spacing:.04em;font-weight:600}
.status{
  font-size:.72rem;padding:.2rem .55rem;border-radius:999px;
  background:rgba(31,157,120,.12);color:var(--glow);font-weight:600;
}
.status-almost-full{background:rgba(185,137,90,.18);color:#8a5a2b}
.status-filling-fast{background:rgba(47,111,237,.12);color:var(--accent)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.contact-cta{
  border-radius:22px;padding:1.5rem;border:1px solid var(--line);
  background:linear-gradient(145deg,rgba(47,111,237,.12),rgba(31,157,120,.1));
  backdrop-filter:blur(10px);
}
.steps{padding-left:1.2rem}
.rules{padding-left:1.2rem;max-width:70ch}
.rules li{margin:.55rem 0}
.dept{margin:2rem 0}
.dept h2{font-family:var(--font-display);font-size:1.4rem;margin:0 0 1rem;color:var(--accent)}

.site-footer{
  position:relative;z-index:2;border-top:1px solid var(--line);
  padding:2rem 1.25rem;margin-top:1rem;color:var(--muted);
  background:rgba(255,255,255,.55);backdrop-filter:blur(12px);
}
.footer-inner{
  max-width:1180px;margin:0 auto;display:flex;justify-content:space-between;
  gap:1rem;flex-wrap:wrap;font-size:.86rem;
}

@media (max-width:900px){
  .nav{display:none}
  .nav.open{
    display:flex;flex-direction:column;position:absolute;right:1rem;top:68px;
    background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:18px;
    padding:.8rem;width:min(300px,90vw);max-height:70vh;overflow:auto;backdrop-filter:blur(16px);
  }
  .nav-toggle{display:inline-flex}
  .mvp,.two-col,.contact-grid,.home-strip{grid-template-columns:1fr}
  .home-strip a{border-right:0;border-bottom:1px solid var(--line)}
  .home-strip a:last-child{border-bottom:0}
  .btn-ghost{margin-left:0;margin-top:.5rem}
  .hero-cta{display:flex;flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  .hero-brand,.hero h1,.hero .hero-lead,.hero-cta{animation:none}
  html{scroll-behavior:auto}
}

.nav-more{position:relative}
.nav-dropdown{display:none;position:absolute;right:0;top:calc(100% + .45rem);min-width:230px;max-height:70vh;overflow:auto;z-index:70;padding:.45rem}
.nav-more.open .nav-dropdown{display:flex;flex-direction:column;gap:.1rem}
.nav-more-btn{cursor:pointer}
.person{display:flex;flex-direction:column;align-items:flex-start;gap:.55rem}
.person-photo{
  width:100%;aspect-ratio:1/1;max-height:220px;
  border-radius:12px;overflow:hidden;
  background:linear-gradient(145deg,rgba(128,128,128,.18),rgba(128,128,128,.08));
  border:1px solid rgba(128,128,128,.2);
  display:grid;place-items:center;
  margin-bottom:.15rem;
}
.person-photo span{
  font-size:1.6rem;font-weight:700;letter-spacing:.06em;opacity:.55;
}
.person h3{margin:0}

.nav-more-btn{
  font-size:.76rem;color:var(--muted);padding:.4rem .55rem;border-radius:999px;
  border:0;background:transparent;font-family:var(--font-body);font-weight:500;
}
.nav-more.is-active .nav-more-btn,.nav-more-btn:hover{
  color:var(--ink);background:rgba(47,111,237,.1);
  box-shadow:inset 0 0 0 1px rgba(47,111,237,.28);
}
.nav-dropdown{
  background:rgba(255,255,255,.97);border:1px solid var(--line);border-radius:18px;
  backdrop-filter:blur(16px);box-shadow:0 18px 40px rgba(26,39,64,.1);
}
.nav-dropdown .nav-link{display:block}