:root{
  --black:#050505;
  --black-soft:#0d0d0d;
  --black-card:#111315;
  --aquamarine:#7FFFD4;
  --azure:#FFFF;
  --gray:#8a8f94;
  --border:rgba(127,255,212,0.15);
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}

body{
  background:var(--black);
  color:#f2f2f2;
  font-family:'Rubik', Arial, sans-serif;
  overflow-x:hidden;
}

h1,h2,h3,.nav-logo,.footer-logo{
  font-family:'Anton', sans-serif;
  font-weight:400;
  letter-spacing:1px;
}

.navbar{
  position:sticky;
  top:0;
  z-index:100;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 6vw;
  background:rgba(5,5,5,0.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}

.nav-logo{
  color:var(--aquamarine);
  font-size:1.6rem;
  letter-spacing:2px;
}

.nav-links{
  display:flex;
  gap:30px;
}

.nav-links a{
  color:var(--gray);
  text-decoration:none;
  text-transform:uppercase;
  font-size:0.8rem;
  letter-spacing:2px;
  transition:color 0.25s ease;
}

.nav-links a:hover{
  color:var(--aquamarine);
}

.hero{
  position:relative;
  min-height:92vh;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:20px;
  overflow:hidden;
}

.hero-watermark{
  position:absolute;
  font-size:min(45vw, 32rem);
  font-family:'Anton', sans-serif;
  color:rgba(127,255,212,0.05);
  z-index:0;
  user-select:none;
  line-height:1;
}

.hero-content{
  position:relative;
  z-index:1;
}

.kicker{
  color:var(--azure);
  text-transform:uppercase;
  letter-spacing:5px;
  font-size:0.8rem;
  margin-bottom:18px;
}

.hero-title{
  font-size:clamp(3rem, 13vw, 8rem);
  color:#fff;
  line-height:1;
}

.hero-sub{
  margin-top:22px;
  color:var(--gray);
  font-size:1rem;
  letter-spacing:0.5px;
}

.scroll-indicator{
  position:absolute;
  bottom:40px;
  left:50%;
  transform:translateX(-50%);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  color:var(--gray);
  text-transform:uppercase;
  font-size:0.7rem;
  letter-spacing:3px;
  z-index:1;
}

.scroll-line{
  width:1px;
  height:36px;
  background:linear-gradient(var(--aquamarine), transparent);
  animation:scrollPulse 1.8s infinite;
}

@keyframes scrollPulse{
  0%{opacity:0.2;}
  50%{opacity:1;}
  100%{opacity:0.2;}
}

.ticker-wrap{
  width:100%;
  overflow:hidden;
  white-space:nowrap;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  padding:16px 0;
  background:var(--black-soft);
}

.ticker-track{
  display:inline-flex;
  align-items:center;
  animation:tickerLeft 16s linear infinite;
}

.ticker-track span{
  color:var(--gray);
  text-transform:uppercase;
  letter-spacing:3px;
  font-size:0.85rem;
  font-weight:600;
  margin:0 18px;
}

.ticker-track i{
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--aquamarine);
  display:inline-block;
}

@keyframes tickerLeft{
  0%{transform:translateX(0);}
  100%{transform:translateX(-100%);}
}

.section-title{
  text-align:center;
  font-size:clamp(2rem, 6vw, 3rem);
  color:#fff;
  margin-top:100px;
}

.section-sub{
  text-align:center;
  color:var(--gray);
  margin-top:12px;
  margin-bottom:60px;
  font-size:0.95rem;
}

.stats{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  max-width:700px;
  margin:0 auto 70px;
  border:1px solid var(--border);
}

.stat-box{
  text-align:center;
  padding:34px 10px;
  border-right:1px solid var(--border);
}

.stat-box:last-child{
  border-right:none;
}

.stat-number{
  font-size:clamp(2rem, 6vw, 3rem);
  color:var(--aquamarine);
}

.stat-box p{
  margin-top:8px;
  text-transform:uppercase;
  letter-spacing:3px;
  color:var(--gray);
  font-size:0.75rem;
}

.toggle-wrap{
  display:flex;
  justify-content:center;
  gap:14px;
  margin-bottom:50px;
}

.toggle-btn{
  padding:12px 34px;
  border-radius:30px;
  border:1px solid var(--border);
  background:transparent;
  color:var(--gray);
  text-transform:uppercase;
  letter-spacing:2px;
  font-size:0.8rem;
  font-family:'Rubik', sans-serif;
  font-weight:600;
  cursor:pointer;
  transition:all 0.25s ease;
}

.toggle-btn.active{
  background:var(--aquamarine);
  color:var(--black);
  border-color:var(--aquamarine);
}

.toggle-btn:not(.active):hover{
  border-color:var(--aquamarine);
  color:var(--aquamarine);
}

.student-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:16px;
  max-width:800px;
  margin:0 auto 100px;
  padding:0 20px;
}

.student-card{
  background:var(--black-card);
  border:1px solid var(--border);
  border-radius:12px;
  padding:26px 10px;
  text-align:center;
  transition:border-color 0.25s ease, transform 0.25s ease;
}

.student-card:hover{
  border-color:var(--aquamarine);
  transform:translateY(-4px);
}

.student-number{
  font-family:'Anton', sans-serif;
  color:var(--aquamarine);
  font-size:1.6rem;
  letter-spacing:1px;
}

.student-name{
  margin-top:6px;
  color:#f2f2f2;
  font-size:0.95rem;
}

.galeri{
  padding-bottom:60px;
}

.gallery-stack{
  max-width:640px;
  margin:0 auto;
  padding:0 20px;
  display:flex;
  flex-direction:column;
  gap:24px;
}

.photo-card{
  position:relative;
  border-radius:16px;
  overflow:hidden;
  aspect-ratio:4/3;
  border:1px solid var(--border);
  background:linear-gradient(160deg, rgba(47,184,255,0.18), rgba(127,255,212,0.12));
}

.photo-card img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}

.photo-card .placeholder-text{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  color:rgba(255,255,255,0.35);
  font-size:0.9rem;
}

.photo-overlay{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:22px;
  background:linear-gradient(to top, rgba(0,0,0,0.85), transparent);
}

.photo-overlay h3{
  font-family:'Anton', sans-serif;
  font-size:1.3rem;
  color:#fff;
  letter-spacing:1px;
}

.photo-overlay p{
  color:var(--gray);
  font-size:0.85rem;
  margin-top:4px;
}

.photo-number{
  position:absolute;
  top:14px;
  right:18px;
  font-family:'Anton', sans-serif;
  font-size:2.6rem;
  color:var(--aquamarine);
  opacity:0.85;
  text-shadow:0 0 20px rgba(127,255,212,0.6);
}

.footer{
  text-align:center;
  padding:50px 20px 40px;
  border-top:1px solid var(--border);
}

.footer-logo{
  color:var(--aquamarine);
  font-size:1.6rem;
  letter-spacing:2px;
}

.footer p{
  margin-top:10px;
  color:var(--gray);
  text-transform:uppercase;
  letter-spacing:2px;
  font-size:0.75rem;
}

.reveal{
  opacity:0;
  transform:translateY(30px);
  transition:opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active{
  opacity:1;
  transform:translateY(0);
}

@media(max-width:480px){
  .stats{grid-template-columns:repeat(3,1fr);}
  .student-grid{grid-template-columns:repeat(2,1fr);}
}