/* ===== Time Machine Indicator — Shared Document Style ===== */
:root {
  --bg: #050810;
  --bg-2: #0a1020;
  --panel: #0d1426;
  --panel-2: #111a30;
  --line: rgba(80, 160, 255, 0.12);
  --line-strong: rgba(80, 160, 255, 0.28);
  --blue: #3da9ff;
  --blue-2: #1a7bff;
  --blue-glow: rgba(61, 169, 255, 0.4);
  --cyan: #5ee0ff;
  --gold: #f5c85a;
  --gold-2: #d9a82c;
  --silver: #c9d4e6;
  --text: #e8eef7;
  --text-dim: #94a2bb;
  --text-mute: #5d6781;
  --red: #ff5566;
  --green: #2dd683;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse at 10% 0%, rgba(61, 169, 255, 0.15), transparent 45%),
    radial-gradient(ellipse at 90% 100%, rgba(245, 200, 90, 0.06), transparent 50%);
  pointer-events: none;
  z-index: 0;
}
.container { max-width: 880px; margin: 0 auto; padding: 0 28px; position: relative; z-index: 2; }
.container.wide { max-width: 1180px; }

/* ===== NAV ===== */
nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(5, 8, 16, 0.85);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
  max-width: 1180px;
  margin: 0 auto;
  padding-left: 28px;
  padding-right: 28px;
}
.logo {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--mono);
  font-weight: 800; letter-spacing: 0.05em;
  color: var(--text);
  font-size: 14px;
  text-decoration: none;
}
.logo svg { width: 32px; height: 32px; flex-shrink: 0; filter: drop-shadow(0 0 8px var(--blue-glow)); }
.logo .name { display: flex; flex-direction: column; line-height: 1; gap: 3px; }
.logo .name .top { color: var(--silver); font-size: 13px; }
.logo .name .bot { color: var(--gold); font-size: 9px; letter-spacing: 0.3em; }
.back-link {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
  transition: color .2s;
}
.back-link:hover { color: var(--blue); }

/* ===== DOC PAGE ===== */
.doc-hero {
  padding: 70px 0 30px;
  text-align: center;
  border-bottom: 1px solid var(--line);
}
.doc-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.doc-eyebrow::before, .doc-eyebrow::after {
  content: ''; width: 24px; height: 1px; background: var(--gold);
}
h1.doc-title {
  font-family: var(--mono);
  font-size: clamp(30px, 4.5vw, 48px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 14px;
  background: linear-gradient(135deg, #ffffff 0%, var(--cyan) 60%, var(--blue) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.doc-sub {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 620px;
  margin: 0 auto;
}
.doc-meta {
  color: var(--text-mute);
  font-family: var(--mono);
  font-size: 12px;
  margin-top: 16px;
}

/* ===== CONTENT ===== */
main.doc {
  padding: 60px 0 80px;
  position: relative; z-index: 2;
}
main.doc .intro {
  margin-bottom: 40px;
  font-size: 15.5px;
  color: var(--text-dim);
}
main.doc .intro p { margin-bottom: 14px; }
main.doc .intro b, main.doc .intro strong { color: var(--text); }

main.doc h2 {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.005em;
  color: var(--text);
  margin: 44px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  display: flex; align-items: baseline; gap: 12px;
}
main.doc h2 .num {
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}
main.doc h3 {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--cyan);
  margin: 28px 0 12px;
}
main.doc p { color: var(--text-dim); font-size: 15px; margin-bottom: 14px; }
main.doc p b, main.doc p strong, main.doc li b, main.doc li strong { color: var(--text); font-weight: 600; }
main.doc ul { margin: 12px 0 18px 22px; }
main.doc li { color: var(--text-dim); font-size: 15px; padding: 4px 0; }
main.doc li::marker { color: var(--blue); }
main.doc a { color: var(--cyan); text-decoration: none; }
main.doc a:hover { color: var(--gold); text-decoration: underline; }

/* Highlight box */
.callout {
  margin: 24px 0;
  padding: 18px 20px;
  background: rgba(61, 169, 255, 0.06);
  border: 1px solid rgba(61, 169, 255, 0.2);
  border-left: 3px solid var(--blue);
  border-radius: 10px;
  font-size: 14.5px;
  color: var(--text-dim);
}
.callout.gold {
  background: rgba(245, 200, 90, 0.06);
  border-color: rgba(245, 200, 90, 0.2);
  border-left-color: var(--gold);
}
.callout.red {
  background: rgba(255, 85, 102, 0.05);
  border-color: rgba(255, 85, 102, 0.2);
  border-left-color: var(--red);
}

/* Contact card */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 28px 0;
}
.contact-card {
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  text-align: center;
  transition: border-color .25s, transform .25s, background .25s;
}
.contact-card:hover {
  border-color: var(--line-strong);
  background: var(--panel-2);
  transform: translateY(-3px);
}
.contact-icon {
  width: 48px; height: 48px;
  margin: 0 auto 14px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}
.contact-icon.wa { background: rgba(45, 214, 131, 0.12); color: var(--green); }
.contact-icon.tg { background: rgba(61, 169, 255, 0.12); color: var(--blue); }
.contact-icon.em { background: rgba(245, 200, 90, 0.12); color: var(--gold); }
.contact-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--text-mute);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.contact-value {
  font-family: var(--mono);
  font-size: 16px;
  color: var(--text);
  font-weight: 700;
  margin-bottom: 14px;
  word-break: break-all;
}
.contact-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: transform .2s, box-shadow .2s;
}
.contact-btn.wa { background: var(--green); color: #0a1a10; }
.contact-btn.tg { background: var(--blue); color: #fff; }
.contact-btn.em { background: var(--gold); color: #1c1408; }
.contact-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 18px rgba(0,0,0,0.4); }

.info-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 18px 0;
}
.info-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}
.info-card h4 {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.info-card p { font-size: 14px; color: var(--text-dim); margin: 4px 0; }
.info-card b { color: var(--text); }

/* FAQ accordion */
.faq-list { margin-top: 30px; }
.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
  cursor: pointer;
}
.faq-q {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  gap: 20px;
}
.faq-q .plus {
  color: var(--blue);
  font-size: 22px;
  font-weight: 400;
  transition: transform .3s;
  flex-shrink: 0;
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  color: var(--text-dim);
  font-size: 14.5px;
  transition: max-height .35s ease, margin-top .25s;
}
.faq-item.open .faq-a { max-height: 600px; margin-top: 14px; }
.faq-item.open .plus { transform: rotate(45deg); }

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--line);
  padding: 40px 0 30px;
  text-align: center;
  color: var(--text-mute);
  font-family: var(--mono);
  font-size: 12px;
  margin-top: 60px;
}
footer .logo { justify-content: center; margin-bottom: 12px; }
footer .links {
  display: flex; gap: 24px; justify-content: center;
  margin: 16px 0 20px;
  flex-wrap: wrap;
}
footer a { color: var(--text-dim); text-decoration: none; }
footer a:hover { color: var(--blue); }

/* ===== RESPONSIVE ===== */
@media (max-width: 720px) {
  .contact-grid { grid-template-columns: 1fr; }
  .info-row { grid-template-columns: 1fr; }
  main.doc h2 { font-size: 17px; }
  .container { padding: 0 18px; }
  .nav-inner { padding-left: 18px; padding-right: 18px; }
  .doc-hero { padding: 50px 0 24px; }
}