/* =========================
   RESET & BASE
========================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background: #020617;
  color: #e5e7eb;
  overflow-x: hidden;
}

/* =========================
   NAVBAR
========================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 50px;
  background: rgba(2, 6, 23, 0.95);
  backdrop-filter: blur(10px);
}

.navbar a {
  color: #94a3b8;
  margin-left: 20px;
  text-decoration: none;
  transition: color 0.3s;
}

.navbar a:hover {
  color: #38bdf8;
}

/* =========================
   HERO
========================= */
.hero {
  height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(circle at top, #1e40af, #020617);
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: 52px;
  margin-bottom: 20px;
}

/* =========================
   SECTION
========================= */
.section {
  padding: 100px 60px;
  text-align: center;
}

.dark {
  background: #020617;
}

/* =========================
   GRID & CARD
========================= */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.card {
  background: #020617;
  padding: 40px;
  border-radius: 20px;
  box-shadow: inset 0 0 0 1px #1e293b;
  transition:
    transform 0.35s ease,
    box-shadow 0.35s ease;
}

.card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

/* =========================
   CTA (CENTER FIX)
========================= */
.cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

/* =========================
   BUTTON
========================= */
.btn {
  display: inline-block;
  margin-top: 30px;
  padding: 16px 36px;
  border-radius: 40px;
  background: #2563eb;
  color: white;
  text-decoration: none;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
  box-shadow: 0 0 30px rgba(37, 99, 235, 0.5);
}

.btn:hover {
  transform: scale(1.08);
  box-shadow: 0 0 50px rgba(37, 99, 235, 0.8);
}

.big {
  font-size: 18px;
}

/* =========================
   ALUR LIST (HOVER MEMBESAR)
========================= */
.alur {
  max-width: 600px;
  margin: 40px auto 0;
  text-align: left;
  line-height: 1.8;
  list-style-position: inside;
}

.alur li {
  position: relative;
  margin-bottom: 18px;
  padding: 18px 22px 18px 30px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  transition:
    transform 0.3s ease,
    background 0.3s ease,
    box-shadow 0.3s ease;
  will-change: transform;
}

/* Garis kiri */
.alur li::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 15%;
  width: 4px;
  height: 70%;
  background: #2563eb;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.3s;
}

/* HOVER EFFECT */
.alur li:hover {
  transform: scale(1.05);
  background: rgba(37, 99, 235, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.alur li:hover::before {
  opacity: 1;
}

/* =========================
   REVEAL ANIMATION
========================= */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: 1s ease;
}

.reveal.active {
  opacity: 1;
  transform: none;
}

/* =========================
   FOOTER
========================= */
footer {
  padding: 40px;
  text-align: center;
  color: #64748b;
}