/* Nusantara Fighter top-up site: coresify palette (navy #0F2A47, teal, sand #F0CDA8), no external fonts or scripts. */
:root {
  --navy: #0f2a47; --navy-2: #163a60; --sand: #f0cda8;
  --teal: #4ecac6; --accent: #0e7c70; --accent-hover: #0b6a60; --accent-soft: #e2f2ef;
  --bg: #eef2f5; --surface: #fff; --line: #e4e8ef; --ink: #0f2a47; --text: #2a3644; --muted: #667386;
  --radius: 14px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b1a2c; --surface: #12263f; --line: #20395a; --ink: #f2f6fb; --text: #cdd8e5; --muted: #93a6bc; --accent: #4ecac6; --accent-hover: #7fe0dc; --accent-soft: #123c46; }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--font); }
img { max-width: 100%; height: auto; }
a { color: var(--accent); }
a:hover { color: var(--accent-hover); }
h1, h2, h3 { color: var(--ink); line-height: 1.2; margin: 0; letter-spacing: -.01em; }
.wrap { width: min(1040px, 100% - 32px); margin-inline: auto; }

.top { background: var(--navy); color: #fff; }
.top .wrap { display: flex; align-items: center; gap: 14px; min-height: 60px; flex-wrap: wrap; padding-block: 8px; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 700; font-size: 18px; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.top nav { margin-left: auto; display: flex; gap: 18px; flex-wrap: wrap; }
.top nav a { color: #cfd9e6; text-decoration: none; font-size: 15px; }
.top nav a:hover { color: #fff; }

.hero { background: linear-gradient(180deg, var(--navy), var(--navy-2)); color: #dbe6f2; padding: 44px 0 56px; }
.hero .wrap { display: grid; gap: 28px; grid-template-columns: 1.1fr .9fr; align-items: center; }
.hero h1 { color: #fff; font-size: clamp(30px, 5vw, 46px); }
.hero p { margin: 14px 0 0; font-size: 18px; max-width: 34em; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.hero img { border-radius: var(--radius); box-shadow: 0 18px 40px -16px rgba(0, 0, 0, .6); border: 1px solid rgba(255, 255, 255, .12); }
.btn { display: inline-block; padding: 12px 20px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 1px solid transparent; }
.btn.primary { background: var(--teal); color: #06222a; }
.btn.primary:hover { background: #7fe0dc; color: #06222a; }
.btn.ghost { border-color: rgba(255, 255, 255, .35); color: #fff; }
.btn.ghost:hover { background: rgba(255, 255, 255, .1); color: #fff; }

section { padding: 44px 0 0; }
section:last-of-type { padding-bottom: 56px; }
section > .wrap > h2 { font-size: 28px; }
.lead { color: var(--muted); margin-top: 8px; max-width: 46em; }

.grid { display: grid; gap: 14px; margin-top: 22px; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: 0 1px 2px rgba(15, 42, 71, .05); }
.pack .amt { font-size: 28px; font-weight: 800; color: var(--ink); font-variant-numeric: tabular-nums; }
.pack .unit { color: var(--muted); font-size: 14px; }
.pack .price { margin-top: 12px; font-weight: 700; color: var(--accent); font-size: 18px; }
.pack .tag { display: inline-block; margin-top: 8px; padding: 2px 9px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 12px; font-weight: 600; }
.sub { margin: 30px 0 0; font-size: 20px; }

.steps { counter-reset: s; list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.steps li { counter-increment: s; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.steps li::before { content: counter(s); display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--navy); color: var(--sand); font-weight: 700; margin-bottom: 10px; }
.steps b { display: block; color: var(--ink); margin-bottom: 4px; }

.notice { margin-top: 22px; padding: 14px 18px; border-radius: var(--radius); background: var(--accent-soft); border: 1px solid var(--line); }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin-top: 10px; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--ink); }
.faq p { margin: 10px 0 0; }

.doc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; margin: 32px auto 56px; }
.doc h1 { font-size: 30px; }
.doc h2 { font-size: 20px; margin-top: 26px; }
.doc p, .doc ul { margin: 10px 0 0; }
.doc .meta { color: var(--muted); font-size: 14px; margin-top: 6px; }

footer { background: var(--navy); color: #9fb3c9; padding: 28px 0; font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between; }
footer a { color: #cfd9e6; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }

@media (max-width: 760px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero { padding: 32px 0 40px; }
  .doc { padding: 20px; }
}