/* Basic reset & variables */
:root{
  --bg:#ffffff;
  --fg:#0f172a;
  --muted:#64748b;
  --primary:#2563eb;
  --card:#f8fafc;
  --shadow:0 8px 30px rgba(0,0,0,.07);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Apple Color Emoji','Segoe UI Emoji';
  color:var(--fg);
  background:var(--bg);
  line-height:1.6;
  scroll-behavior:smooth;
}
img{max-width:100%;display:block}

/* Container */
.container{width:100%;max-width:1100px;margin:0 auto;padding:0 16px}

/* Navbar */
.navbar{
  position:sticky;top:0;z-index:50;
  background:#fff;border-bottom:1px solid #e5e7eb;
  box-shadow:0 2px 8px rgba(0,0,0,.04);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:700}
.nav-links{display:flex;gap:18px}
.nav-links a{color:var(--fg);text-decoration:none;font-weight:500}
.nav-links a:hover{color:var(--primary)}
.burger{display:none;flex-direction:column;gap:4px;background:none;border:0}
.burger span{width:22px;height:2px;background:#111;display:block;border-radius:2px}

@media (max-width: 768px){
  .burger{display:flex}
  .nav-links{position:fixed;inset:64px 0 auto 0;background:#fff;box-shadow:var(--shadow);
             padding:16px;display:none;flex-direction:column}
  .nav-links.open{display:flex}
}

/* Hero */
.hero{padding:96px 0 40px}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:24px}
.hero .lead{color:var(--muted);font-size:1.1rem}
.btn{display:inline-block;padding:10px 16px;border-radius:10px;text-decoration:none;font-weight:600}
.primary{background:var(--primary);color:#fff;box-shadow:var(--shadow)}
.hero-art img{border-radius:16px}

@media (max-width: 900px){
  .hero-inner{grid-template-columns:1fr}
}

/* Sections */
.section{padding:70px 0}
.section.alt{background:#f6f7fb}
.section-head{text-align:center;margin-bottom:28px}
.section-head h2{font-size:2rem;margin:0 0 6px}
.section-head p{color:var(--muted);margin:0}

/* Grid & Cards */
.grid{display:grid;gap:18px;grid-template-columns:repeat(3,1fr)}
@media (max-width: 900px){.grid{grid-template-columns:1fr}}
.card{background:var(--card);padding:22px;border-radius:16px;box-shadow:var(--shadow);text-align:center}
.card .icon{font-size:28px;margin-bottom:8px}

/* Footer */
.footer{padding:28px 0;border-top:1px solid #e5e7eb;color:var(--muted);text-align:center}

/* Back to top */
.back-to-top{
  position:fixed;right:14px;bottom:14px;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;text-decoration:none;background:var(--primary);color:#fff;
  opacity:0;pointer-events:none;transition:.2s;
  box-shadow:var(--shadow);
}
.back-to-top.show{opacity:1;pointer-events:auto}

/* Reveal-on-scroll (AOS-lite) */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease;transition-delay:var(--delay,0s)}
.reveal.revealed{opacity:1;transform:none}

/* Carousel (no dependency) */
.carousel {
  position: relative;
  overflow: hidden; /* ini yang memotong bagian di luar viewport */
}

.carousel-track {
  display: flex;
  transition: transform 0.5s ease;
}

.slide{min-width:100%;flex:0 0 100%;display:flex;flex-direction:column;align-items:center;text-align:center;padding:16px}
.avatar {
  width: 250px; /* ukuran kotak */
  height: 200px;
  border-radius: 8px; /* sudut agak tumpul, bisa 0px kalau mau persegi penuh */
  object-fit: cover;
  box-shadow: var(--shadow);
  margin-bottom: 10px;
}
.control{
  position:absolute;top:50%;transform:translateY(-50%);
  background:#fff;border:1px solid #e5e7eb;border-radius:10px;box-shadow:var(--shadow);
  width:40px;height:40px;display:grid;place-items:center;font-size:22px;color:#111
}
.prev{left:8px}.next{right:8px}
.dots{display:flex;gap:6px;justify-content:center;margin-top:8px}
.dots button{width:8px;height:8px;border-radius:999px;border:0;background:#d1d5db}
.dots button.active{background:#111}