* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family: 'Inter', sans-serif;
}

/* BACKGROUND NAGA */
body {
  background:
    radial-gradient(circle at top, rgba(255,215,0,.08), transparent 60%),
    linear-gradient(rgba(0,0,0,.55), rgba(0,0,0,.85)),
    url("images/bg-dragon.webp") center / cover no-repeat fixed;
}

/* LAYOUT */
.split-layout {
  display: flex;
  min-height: 100vh;
  padding: 40px;
  gap: 40px;
}

/* KIRI */
.left {
  flex: 1.3;
}

.banner {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 0 60px rgba(255, 200, 0, 0.35);
}

.provider-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.provider-grid img {
  width: 100%;
  border-radius: 16px;
  background: #111;
  padding: 14px;
  box-shadow: 0 0 30px rgba(255,215,0,.25);
}

/* KANAN */
.right {
  flex: 0.8;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* GLASS CARD */
.glass-card {
  width: 100%;
  padding: 35px;
  border-radius: 24px;
  backdrop-filter: blur(16px);
  background: rgba(0,0,0,.55);
  box-shadow:
    0 0 40px rgba(255,215,0,.35),
    inset 0 0 20px rgba(255,215,0,.15);
  text-align: center;
}

.glass-card h1 {
  color: gold;
  letter-spacing: 2px;
}

.glass-card p {
  color: #ddd;
}

/* BUTTON */
.btn {
  display: block;
  margin-top: 14px;
  padding: 14px;
  border-radius: 30px;
  background: #1c1c1c;
  color: white;
  text-decoration: none;
  transition: .3s;
  box-shadow: 0 0 20px rgba(255,215,0,.25);
}

.btn:hover {
  transform: scale(1.03);
  box-shadow: 0 0 40px rgba(255,215,0,.6);
}

.btn.gold {
  background: linear-gradient(135deg, gold, orange);
  color: black;
  font-weight: bold;
}