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

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  /* font-family: 'Poppins', sans-serif; */
  /* font-family: 'Inclusive Sans'; */
  font-family: 'Instrument Serif';
  color: white;
  background-color: #000;
}

/* ---------- Showcase Container ---------- */
.showcase {
  position: relative;
  height: 100vh;
  width: 100vw;
  background-size: cover;
  background-position: center;
  transition: background-image 1.2s ease-in-out;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

/* Overlay gradasi bawah agar teks tetap terbaca */
.overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 20%, rgba(0,0,0,0.1) 80%);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 2rem;
}

/* ---------- Text info ---------- */
.info {
  text-align: center;
  max-width: 700px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.info h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.info .author {
  font-weight: 300;
  opacity: 0.85;
  margin-bottom: 0.8rem;
}

.info .desc {
  font-size: 1rem;
  opacity: 0.9;
  line-height: 1.5;
}

/* ---------- Navigation arrows ---------- */
.nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3rem;
  color: rgba(255,255,255,0.8);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem 1rem;
  transition: color 0.3s ease, transform 0.3s ease;
  z-index: 10;
}

.nav-btn:hover {
  color: white;
  transform: translateY(-50%) scale(1.1);
}

.left { left: 20px; }
.right { right: 20px; }

/* ---------- Fade effect layer ---------- */
.fade-bg {
  position: fixed;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 1s ease-in-out;
  z-index: 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
  .info h1 { font-size: 1.6rem; }
  .info .desc { font-size: 0.9rem; }
  .nav-btn { font-size: 2rem; }
}



/* ---------- Header Overlay ---------- */
.header-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  /* Gradasi halus dari hitam ke transparan */
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.8) 0%, rgba(0,0,0,0.4) 40%, rgba(0,0,0,0) 100%);
  padding: 3rem 1rem 5rem 1rem; /* agak tinggi supaya transisinya halus */
  text-align: center;
  z-index: 20;
  pointer-events: none; /* biar header nggak ganggu klik tombol di bawah */
}

.header-content {
  position: relative;
  z-index: 2;
}

.header-content h2 {
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: 1px;
  opacity: 0.9;
  margin-bottom: 0.3rem;
}

.header-content h1 {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: 2px;
}

/* Responsif */
@media (max-width: 600px) {
  .header-content h2 { font-size: 1rem; }
  .header-content h1 { font-size: 1.8rem; }
}