:root {
  --primary: #16a34a;
  --primary-dark: #0e8a3c;
  --accent: #4ade80;
  --bg: #060a07;
  --card: rgba(17, 37, 22, 0.55);
  --border: rgba(74, 222, 128, 0.14);
  --border-strong: rgba(74, 222, 128, 0.35);
  --text: #edf5ef;
  --muted: #93a89b;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background:
    radial-gradient(ellipse 1000px 520px at 50% -120px, rgba(22,163,74,0.20), transparent 65%),
    radial-gradient(ellipse 700px 400px at 100% 0%, rgba(74,222,128,0.07), transparent 60%),
    var(--bg);
  color: var(--text); line-height: 1.7; font-size: 16px; min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
.container { max-width: 1024px; margin: 0 auto; padding: 0 22px; }

/* header */
header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(6,10,7,0.78); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 22px; max-width: 1024px; margin: 0 auto; }
.logo {
  font-family: "Rubik Mono One", monospace; font-size: 21px; letter-spacing: 1px;
  background: linear-gradient(135deg, #fff, #7ee2a0);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
nav { display: flex; gap: 20px; align-items: center; }
nav a { color: var(--muted); font-weight: 600; font-size: 14px; transition: color .2s; }
nav a:hover { color: #fff; }
.btn {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #04180a; padding: 9px 20px; border-radius: 24px; font-weight: 800; font-size: 14px;
  box-shadow: 0 4px 16px rgba(22,163,74,0.35);
  transition: transform .2s, box-shadow .2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(22,163,74,0.5); color: #04180a; }

/* hero */
.hero { text-align: center; padding: 84px 20px 60px; position: relative; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(22,163,74,0.12); border: 1px solid rgba(74,222,128,0.3);
  color: #7ee2a0; padding: 7px 16px; border-radius: 30px; font-size: 13px; font-weight: 700;
  margin-bottom: 22px; letter-spacing: .3px;
}
.badge::before { content: "●"; color: var(--accent); font-size: 8px; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% {opacity:1} 50% {opacity:.35} }
.hero h1 {
  font-size: 44px; line-height: 1.18; font-weight: 800; letter-spacing: -0.5px;
  background: linear-gradient(135deg, #ffffff 10%, #bff0cf 55%, #4ade80 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 18px;
}
.hero p { color: var(--muted); max-width: 640px; margin: 0 auto 30px; font-size: 18px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-green {
  display: inline-block; background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #04180a; padding: 16px 40px; border-radius: 40px; font-weight: 800; font-size: 17px;
  box-shadow: 0 10px 30px rgba(22,163,74,0.4);
  transition: transform .2s, box-shadow .2s;
}
.btn-green:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(22,163,74,0.55); color: #04180a; }
.btn-ghost {
  display: inline-block; padding: 15px 32px; border-radius: 40px; font-weight: 700; font-size: 16px;
  border: 1px solid var(--border-strong); color: var(--text);
  transition: border-color .2s, background .2s;
}
.btn-ghost:hover { border-color: var(--accent); background: rgba(22,163,74,0.08); color: #fff; }

/* section umum */
section { padding: 60px 0; }
h2 {
  font-size: 30px; font-weight: 800; letter-spacing: -0.3px; text-align: center; margin-bottom: 10px;
  background: linear-gradient(135deg, #fff, #b9eec8);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.section-sub { color: var(--muted); text-align: center; max-width: 620px; margin: 0 auto 40px; font-size: 16px; }

/* grid + kartu */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.card {
  background: var(--card); backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: 20px; padding: 26px;
  transition: transform .22s, border-color .22s, box-shadow .22s;
}
.card:hover { transform: translateY(-5px); border-color: var(--border-strong); box-shadow: 0 18px 40px rgba(0,0,0,0.45); }
.card h3 { color: #c8f2d4; font-size: 17px; margin: 14px 0 6px; }
.card p { color: var(--muted); font-size: 14.5px; }
.icon {
  width: 54px; height: 54px; border-radius: 15px;
  display: flex; align-items: center; justify-content: center; font-size: 26px;
  background: linear-gradient(135deg, rgba(22,163,74,0.28), rgba(22,163,74,0.06));
  border: 1px solid rgba(74,222,128,0.25);
}

/* langkah */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; }
.step {
  text-align: center; background: var(--card); backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: 20px; padding: 30px 22px;
}
.step .num {
  width: 48px; height: 48px; line-height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #04180a; font-weight: 800; margin: 0 auto 16px; font-size: 19px;
  box-shadow: 0 6px 18px rgba(22,163,74,0.35);
}
.step h3 { font-size: 16px; color: #fff; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 14px; }

/* stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 18px; }
.stat {
  text-align: center; background: var(--card); backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: 20px; padding: 28px 18px;
}
.stat .val {
  font-size: 32px; font-weight: 800;
  background: linear-gradient(135deg, #fff, #4ade80);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat .lbl { color: var(--muted); font-size: 13px; margin-top: 4px; }

/* FAQ */
details {
  background: var(--card); backdrop-filter: blur(8px); border: 1px solid var(--border);
  border-radius: 16px; margin-bottom: 12px; padding: 18px 22px; transition: border-color .2s;
}
details:hover { border-color: var(--border-strong); }
summary { cursor: pointer; font-weight: 700; color: #fff; font-size: 16px; }
details p { color: var(--muted); margin-top: 12px; font-size: 15px; }

/* artikel */
article { max-width: 740px; margin: 0 auto; }
article h2 { text-align: left; margin: 30px 0 10px; font-size: 24px; }
article p { color: var(--muted); margin: 14px 0; font-size: 16px; }
article ul { color: var(--muted); margin: 14px 0 14px 24px; }
article li { margin: 8px 0; }

/* footer */
footer { background: #04070a; border-top: 1px solid var(--border); margin-top: 70px; padding: 44px 0 0; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 30px; justify-content: space-between; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer-col a { display: block; color: var(--muted); font-size: 14px; margin: 8px 0; transition: color .2s; }
.footer-col a:hover { color: #fff; }
.copyright { text-align: center; color: var(--muted); font-size: 13px; padding: 24px 0; border-top: 1px solid var(--border); margin-top: 30px; }

@media (max-width: 640px) {
  .hero { padding: 60px 20px 44px; }
  .hero h1 { font-size: 30px; }
  nav a:not(.btn) { display: none; }
  h2 { font-size: 24px; }
}