/* ===== Reset & base ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #0e0e10;
  color: #e6e6e6;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: #5db1ff; text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: "SF Mono", Consolas, "Cascadia Code", monospace; }
img { max-width: 100%; display: block; }

/* ===== Layout ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 80px 0; }
.section-alt { background: #15151a; }
.section-title {
  font-size: 32px;
  text-align: center;
  margin-bottom: 8px;
}
.section-sub {
  text-align: center;
  color: #999;
  margin-bottom: 48px;
  font-size: 15px;
}

/* ===== Nav ===== */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  max-width: 1100px;
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  background: linear-gradient(135deg, #1e4ec4, #267fe6);
  border-radius: 7px;
  font-size: 14px;
  font-weight: 900;
  color: #fff;
  position: relative;
}
.brand-mark::after {
  content: "";
  position: absolute;
  bottom: 3px; right: 3px;
  width: 6px; height: 6px;
  background: #ff6464;
  border-radius: 50%;
}
.nav-links {
  display: flex;
  gap: 24px;
}
.nav-links a {
  color: #ccc;
  font-size: 14px;
  font-weight: 500;
}
.nav-links a:hover {
  color: #fff;
  text-decoration: none;
}

/* ===== Hero ===== */
.hero {
  background: radial-gradient(ellipse at top, #1a2240 0%, #0e0e10 60%);
  padding-bottom: 80px;
}
.hero-inner {
  max-width: 800px;
  margin: 50px auto 0;
  padding: 0 24px;
  text-align: center;
}
.badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(94, 178, 255, 0.12);
  color: #5db1ff;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
  border: 1px solid rgba(94, 178, 255, 0.25);
}
.hero h1 {
  font-size: 48px;
  line-height: 1.15;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.grad {
  background: linear-gradient(135deg, #5db1ff, #b4d3ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.lead {
  font-size: 18px;
  color: #b8b8c0;
  margin-bottom: 36px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.trust-row {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  color: #888;
  font-size: 14px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.1s, background 0.15s;
  cursor: pointer;
  border: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, #1e6ed4, #267fe6);
  color: #fff;
  box-shadow: 0 4px 14px rgba(38, 127, 230, 0.35);
}
.btn-primary:hover { background: linear-gradient(135deg, #267fe6, #3a92f0); }
.btn-ghost {
  background: transparent;
  border: 1px solid #444;
  color: #ddd;
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.05); }
.btn-full { width: 100%; }
.btn-wa {
  background: #25d366;
  color: #fff;
  padding: 16px 32px;
  font-size: 16px;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4);
}
.btn-wa:hover { background: #2cdf75; }
.wa-icon { font-size: 22px; }

/* ===== Features ===== */
.grid.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.card {
  background: #1e1e24;
  border: 1px solid #2a2a32;
  border-radius: 12px;
  padding: 28px 24px;
  transition: transform 0.15s, border-color 0.15s;
}
.card:hover {
  transform: translateY(-3px);
  border-color: #3a4a6a;
}
.card .icon {
  font-size: 32px;
  margin-bottom: 14px;
}
.card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.card p {
  color: #aaa;
  font-size: 14px;
}

/* ===== Pricing ===== */
.pricing {
  display: flex;
  justify-content: center;
}
.price-card {
  background: #1e1e24;
  border: 2px solid #2a2a32;
  border-radius: 16px;
  padding: 36px 32px;
  max-width: 420px;
  width: 100%;
  position: relative;
  text-align: center;
}
.price-card.highlight {
  border-color: #267fe6;
  box-shadow: 0 8px 32px rgba(38, 127, 230, 0.18);
}
.price-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #1e6ed4, #267fe6);
  color: #fff;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.price-card h3 {
  font-size: 16px;
  color: #999;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
  margin-bottom: 28px;
}
.price .amount {
  font-size: 56px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
}
.price .unit {
  font-size: 18px;
  color: #888;
  font-weight: 600;
}
.price .period {
  color: #777;
  font-size: 14px;
  margin-left: 4px;
}
.features-list {
  list-style: none;
  text-align: left;
  margin-bottom: 28px;
  padding: 0;
}
.features-list li {
  padding: 8px 0;
  color: #ccc;
  font-size: 14px;
}
.footnote {
  text-align: center;
  color: #888;
  font-size: 13px;
  margin-top: 24px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}
.footnote.center { margin-top: 16px; }

/* ===== PDF Panduan card ===== */
.pdf-card {
  background: linear-gradient(135deg, #1a2540, #20305a);
  border: 1px solid #2a3a6a;
  border-radius: 14px;
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 880px;
  margin: 0 auto;
}
.pdf-info {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 1;
}
.pdf-icon {
  font-size: 52px;
  line-height: 1;
}
.pdf-title {
  font-size: 22px;
  margin-bottom: 6px;
  color: #fff;
}
.pdf-desc {
  color: #b8c5d8;
  font-size: 14px;
  margin: 0;
  line-height: 1.5;
}
@media (max-width: 720px) {
  .pdf-card { flex-direction: column; text-align: center; padding: 24px; }
  .pdf-info { flex-direction: column; gap: 12px; }
}

/* ===== Buy / Pay ===== */
.steps {
  background: #1e1e24;
  border: 1px solid #2a2a32;
  border-radius: 12px;
  padding: 24px 24px 24px 56px;
  margin-bottom: 32px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.steps li {
  margin-bottom: 14px;
  color: #ccc;
  line-height: 1.6;
}
.steps li:last-child { margin-bottom: 0; }
.tabs {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 24px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.tab {
  flex: 1;
  padding: 12px 20px;
  background: #1e1e24;
  border: 1px solid #2a2a32;
  color: #aaa;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.tab:first-child { border-radius: 8px 0 0 8px; }
.tab:last-child { border-radius: 0 8px 8px 0; border-left: none; }
.tab:hover { background: #25252c; color: #fff; }
.tab-active {
  background: #267fe6;
  color: #fff;
  border-color: #267fe6;
}
.pay-panel {
  background: #1e1e24;
  border: 1px solid #2a2a32;
  border-radius: 12px;
  padding: 32px;
  max-width: 720px;
  margin: 0 auto;
}
.pay-panel.hidden { display: none; }
.pay-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  align-items: start;
}
.qr-wrap {
  text-align: center;
}
.qr {
  width: 200px;
  height: 200px;
  border-radius: 8px;
  background: #fff;
  padding: 8px;
}
.qr-label {
  color: #888;
  font-size: 12px;
  margin-top: 8px;
}
.pay-info .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid #2a2a32;
}
.pay-info .row:last-of-type { border-bottom: none; }
.pay-info .row.col {
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
}
.pay-info .key {
  color: #888;
  font-size: 13px;
}
.pay-info .val {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}
.highlight-amount {
  color: #5db1ff !important;
  font-size: 18px !important;
}
.addr-wrap {
  display: flex;
  gap: 8px;
  align-items: center;
  background: #0e0e10;
  border-radius: 6px;
  padding: 10px 12px;
  margin-top: 4px;
}
.addr {
  flex: 1;
  font-size: 12px;
  color: #ddd;
  word-break: break-all;
}
.btn-copy {
  background: #2a2a32;
  color: #ccc;
  border: none;
  padding: 6px 12px;
  border-radius: 5px;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
  font-weight: 600;
}
.btn-copy:hover { background: #3a3a45; color: #fff; }
.warn {
  background: rgba(255, 152, 0, 0.08);
  border: 1px solid rgba(255, 152, 0, 0.25);
  border-radius: 6px;
  padding: 10px 14px;
  margin-top: 14px;
  color: #ffcb80;
  font-size: 12px;
  line-height: 1.5;
}
.confirm-row {
  display: flex;
  justify-content: center;
  margin-top: 32px;
}

/* ===== FAQ ===== */
.faq {
  max-width: 720px;
  margin: 0 auto;
}
.faq details {
  background: #1e1e24;
  border: 1px solid #2a2a32;
  border-radius: 8px;
  margin-bottom: 12px;
  padding: 14px 18px;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: #ddd;
  font-size: 14px;
  list-style: none;
  position: relative;
  padding-right: 28px;
}
.faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: #5db1ff;
  font-size: 18px;
  font-weight: 700;
}
.faq details[open] summary::after { content: "−"; }
.faq details p {
  margin-top: 12px;
  color: #aaa;
  font-size: 14px;
  line-height: 1.6;
}

/* ===== Footer ===== */
.footer {
  background: #08080a;
  padding: 60px 0 24px;
  margin-top: 40px;
  border-top: 1px solid #1f1f24;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 32px;
}
.brand-footer { margin-bottom: 12px; }
.footer h4 {
  color: #fff;
  font-size: 14px;
  margin-bottom: 8px;
}
.footer p { color: #aaa; font-size: 13px; }
.muted { color: #888 !important; }
.small { font-size: 11px !important; line-height: 1.5; }
.copy {
  text-align: center;
  color: #555;
  font-size: 12px;
  padding-top: 24px;
  border-top: 1px solid #1f1f24;
}

/* ===== Responsive ===== */
@media (max-width: 720px) {
  .hero h1 { font-size: 32px; }
  .lead { font-size: 16px; }
  .nav-links { display: none; }
  .section { padding: 56px 0; }
  .section-title { font-size: 26px; }
  .pay-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .qr-wrap { display: flex; flex-direction: column; align-items: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .steps { padding: 20px 20px 20px 48px; }
}