/* ==========================================================================
   Forex VPS Indonesia — Design System
   Aesthetic: trading-terminal / network-map. Dark graphite base (not pure
   black), a cyan "signal" accent standing in for the network path a trade
   travels, amber reserved only for commit actions (buy/order), mono type
   for anything that is a *number* (latency, uptime, price) so data reads
   like a live feed rather than marketing copy.
   ========================================================================== */

@font-face {
  font-family: 'Space Grotesk';
  src: local('Space Grotesk');
  font-display: swap;
}

:root {
  /* Color */
  --bg: #0a0e14;
  --bg-alt: #0d1219;
  --surface: #121826;
  --surface-2: #1a2232;
  --border: #232c3d;
  --border-soft: #1a2130;
  --text: #e8ecf4;
  --text-dim: #97a2b8;
  --text-faint: #5c6780;
  --signal: #43cbe8;
  --signal-dim: #1c4a57;
  --signal-glow: rgba(67, 203, 232, 0.35);
  --amber: #ffb020;
  --amber-dim: #4a3512;
  --green-ok: #3ddc84;
  --red-alert: #ff5c5c;

  /* Type */
  --font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* Scale */
  --radius: 10px;
  --radius-sm: 6px;
  --container: 1180px;
  --gap: clamp(1rem, 2vw, 2rem);
}

@media (prefers-color-scheme: light) {
  [data-theme="auto"] {
    --bg: #f5f7fa;
    --bg-alt: #eef1f6;
    --surface: #ffffff;
    --surface-2: #f0f3f8;
    --border: #dde3ec;
    --border-soft: #e6eaf1;
    --text: #101623;
    --text-dim: #4b5568;
    --text-faint: #8590a6;
    --signal-dim: #d3f1f8;
  }
}
[data-theme="light"] {
  --bg: #f5f7fa;
  --bg-alt: #eef1f6;
  --surface: #ffffff;
  --surface-2: #f0f3f8;
  --border: #dde3ec;
  --border-soft: #e6eaf1;
  --text: #101623;
  --text-dim: #4b5568;
  --text-faint: #8590a6;
  --signal-dim: #d3f1f8;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .2s ease, color .2s ease;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* Skip link */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--signal); color: #05131a; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.25rem; }
p { color: var(--text-dim); margin: 0 0 1em; }
.mono { font-family: var(--font-mono); }
.eyebrow {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--signal);
  display: inline-flex;
  align-items: center;
  gap: .5em;
  margin-bottom: .8em;
}
.eyebrow::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green-ok);
  box-shadow: 0 0 0 3px rgba(61,220,132,.15);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--font-body); font-weight: 600; font-size: .95rem;
  padding: 13px 24px; border-radius: var(--radius-sm); border: 1px solid transparent;
  cursor: pointer; text-decoration: none; transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--amber); color: #221501; }
.btn-primary:hover { box-shadow: 0 0 0 4px rgba(255,176,32,.18); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--signal); color: var(--signal); }
.btn-signal { background: var(--signal-dim); color: var(--signal); border-color: var(--signal-dim); }
.btn-signal:hover { box-shadow: 0 0 0 4px var(--signal-glow); }
.btn-block { width: 100%; }
.btn-sm { padding: 9px 16px; font-size: .85rem; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,14,20,.85); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
[data-theme="light"] .site-header { background: rgba(245,247,250,.85); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .6em; font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; text-decoration: none; color: var(--text); }
.brand-mark {
  width: 30px; height: 30px; border-radius: 7px;
  background: linear-gradient(135deg, var(--signal), #1c8aa6);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: .7rem; color: #05131a; font-weight: 700;
}
.nav-links { display: flex; align-items: center; gap: 1.8rem; list-style: none; margin: 0; padding: 0; }
.nav-links a { text-decoration: none; color: var(--text-dim); font-size: .92rem; font-weight: 500; }
.nav-links a:hover { color: var(--signal); }
.nav-actions { display: flex; align-items: center; gap: .6rem; }
.lang-select, .theme-toggle {
  background: var(--surface); border: 1px solid var(--border); color: var(--text-dim);
  border-radius: var(--radius-sm); padding: 8px 10px; font-size: .82rem; font-family: var(--font-body); cursor: pointer;
}
.nav-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); padding: 8px 10px; cursor: pointer; }

@media (max-width: 860px) {
  .nav-links { position: fixed; inset: 68px 0 0 0; background: var(--bg); flex-direction: column; align-items: flex-start; padding: 24px 20px; gap: 1.2rem; transform: translateX(100%); transition: transform .25s ease; overflow-y: auto; }
  .nav-links.open { transform: translateX(0); }
  .nav-toggle { display: block; }
  .nav-actions .btn-primary { display: none; }
}

/* ---------- Hero ---------- */
.hero { padding: 64px 0 40px; overflow: hidden; position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 3rem; align-items: center; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } }
.hero h1 { margin-bottom: .4em; }
.hero .lede { font-size: 1.08rem; max-width: 46ch; }
.hero-cta { display: flex; gap: .8rem; flex-wrap: wrap; margin: 1.6em 0; }
.trust-row { display: flex; gap: 1.6rem; flex-wrap: wrap; margin-top: 1.6em; }
.trust-row .stat { font-family: var(--font-mono); }
.trust-row .stat b { display: block; font-size: 1.3rem; color: var(--signal); }
.trust-row .stat span { font-size: .74rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: .06em; }

/* Signature element: signal path visualization */
.signal-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  padding: 26px; position: relative;
}
.signal-card .card-label { font-family: var(--font-mono); font-size: .72rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; display: flex; justify-content: space-between; }
.path-svg { width: 100%; height: auto; }
.path-line { stroke: var(--border); stroke-width: 2; fill: none; }
.path-line-active { stroke: var(--signal); stroke-width: 2; fill: none; stroke-dasharray: 6 6; animation: dash 1.6s linear infinite; }
@keyframes dash { to { stroke-dashoffset: -24; } }
.path-node circle.dot { fill: var(--surface-2); stroke: var(--border); stroke-width: 1.5; }
.path-node.active circle.dot { fill: var(--signal); stroke: var(--signal); }
.path-node text { fill: var(--text-dim); font-family: var(--font-mono); font-size: 10px; }
.path-ping { fill: var(--green-ok); font-family: var(--font-mono); font-weight: 700; font-size: 13px; }
.ping-pulse { animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
.signal-readout { display: flex; justify-content: space-between; margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--border); }
.signal-readout div b { font-family: var(--font-mono); color: var(--text); font-size: 1.1rem; display: block; }
.signal-readout div span { font-size: .72rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: .05em; }

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 620px; margin-bottom: 2.6rem; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* Feature grid */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.feature-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; transition: border-color .15s ease, transform .15s ease;
}
.feature-card:hover { border-color: var(--signal-dim); transform: translateY(-2px); }
.feature-card .icon { width: 38px; height: 38px; border-radius: 9px; background: var(--signal-dim); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; color: var(--signal); }
.feature-card h3 { font-size: 1.02rem; margin-bottom: .3em; }
.feature-card p { font-size: .9rem; margin: 0; }

/* Server location table */
.loc-table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.loc-table th, .loc-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--border-soft); }
.loc-table th { font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-faint); font-weight: 500; }
.loc-table td.city { font-weight: 600; }
.ping-badge { font-family: var(--font-mono); padding: 3px 9px; border-radius: 999px; font-size: .78rem; font-weight: 600; }
.ping-good { background: rgba(61,220,132,.12); color: var(--green-ok); }
.ping-mid { background: rgba(255,176,32,.12); color: var(--amber); }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }

/* Pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; align-items: stretch; }
@media (max-width: 1000px) { .pricing-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .pricing-grid { grid-template-columns: 1fr; } }
.plan-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; display: flex; flex-direction: column; }
.plan-card.featured { border-color: var(--signal); box-shadow: 0 0 0 1px var(--signal), 0 10px 40px -18px var(--signal-glow); position: relative; }
.plan-tag { position: absolute; top: -12px; left: 22px; background: var(--signal); color: #05131a; font-family: var(--font-mono); font-size: .68rem; padding: 4px 10px; border-radius: 999px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.plan-name { font-family: var(--font-mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-faint); }
.plan-price { font-family: var(--font-mono); font-size: 2.1rem; font-weight: 700; margin: .3em 0; }
.plan-price span { font-size: .9rem; color: var(--text-faint); font-weight: 400; }
.plan-specs { list-style: none; padding: 0; margin: 1.2em 0; flex: 1; display: flex; flex-direction: column; gap: .6em; font-size: .88rem; color: var(--text-dim); }
.plan-specs li { display: flex; gap: .6em; align-items: baseline; }
.plan-specs li::before { content: '›'; color: var(--signal); font-family: var(--font-mono); }

/* FAQ accordion */
.faq-item { border-bottom: 1px solid var(--border-soft); }
.faq-q { width: 100%; text-align: left; background: none; border: none; color: var(--text); font-family: var(--font-body); font-weight: 600; font-size: 1rem; padding: 18px 0; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.faq-q .icon-plus { font-family: var(--font-mono); color: var(--signal); font-size: 1.1rem; flex-shrink: 0; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
.faq-a p { padding-bottom: 16px; margin: 0; font-size: .93rem; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-item.open .icon-plus { transform: rotate(45deg); }

/* Testimonials */
.testi-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.testi-card p { color: var(--text); font-size: .93rem; }
.testi-meta { display: flex; align-items: center; gap: .7em; margin-top: 1em; }
.testi-avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--surface-2); display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-size: .78rem; color: var(--signal); }
.testi-meta b { display: block; font-size: .85rem; }
.testi-meta span { font-size: .76rem; color: var(--text-faint); }

/* CTA band */
.cta-band { background: linear-gradient(120deg, var(--surface), var(--surface-2)); border: 1px solid var(--border); border-radius: 16px; padding: 40px; text-align: center; }
.cta-band h2 { margin-bottom: .3em; }

/* Footer */
.site-footer { border-top: 1px solid var(--border-soft); padding: 52px 0 24px; background: var(--bg-alt); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 2rem; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
.footer-grid h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-faint); margin-bottom: 1em; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .6em; }
.footer-grid a { text-decoration: none; color: var(--text-dim); font-size: .88rem; }
.footer-grid a:hover { color: var(--signal); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border-soft); font-size: .8rem; color: var(--text-faint); }

/* Breadcrumb */
.breadcrumb { font-size: .82rem; color: var(--text-faint); padding: 16px 0; font-family: var(--font-mono); }
.breadcrumb a { color: var(--text-faint); text-decoration: none; }
.breadcrumb a:hover { color: var(--signal); }

/* Article */
.article-body { max-width: 74ch; margin: 0 auto; }
.article-body h2 { margin-top: 1.6em; }
.article-body p, .article-body li { color: var(--text-dim); font-size: 1rem; }
.article-meta { display: flex; gap: 1.2rem; flex-wrap: wrap; font-family: var(--font-mono); font-size: .78rem; color: var(--text-faint); margin-bottom: 1.6em; }
.toc { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 22px; margin: 1.6em 0; max-width: 74ch; margin-left: auto; margin-right: auto; }
.toc h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-faint); margin-bottom: .8em; }
.toc ol { margin: 0; padding-left: 1.2em; font-size: .9rem; }
.toc a { text-decoration: none; color: var(--signal); }

/* Sticky WhatsApp */
.wa-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%; background: var(--green-ok);
  display: flex; align-items: center; justify-content: center; box-shadow: 0 10px 30px -8px rgba(61,220,132,.5);
  text-decoration: none;
}
.wa-float svg { width: 26px; height: 26px; }

/* Utility */
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.badge { display: inline-flex; align-items: center; gap: .4em; font-family: var(--font-mono); font-size: .74rem; padding: 4px 10px; border-radius: 999px; background: var(--surface-2); color: var(--text-dim); border: 1px solid var(--border); }