:root {
  --ink: #0b1220;
  --ink-soft: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --paper: #ffffff;
  --mist: #f6f9fc;
  --accent: #0f9f8f;
  --accent-dark: #0b7c70;
  --accent-soft: #e6f7f4;
  --blue: #2563eb;
  --radius: 18px;
  --shadow: 0 20px 60px rgba(15, 23, 42, .08);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font: inherit; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.9);
  border-bottom: 1px solid rgba(226,232,240,.9);
  backdrop-filter: blur(16px);
}
.header-row { display: flex; align-items: center; gap: 28px; min-height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 800; letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand img { width: 34px; height: 34px; border-radius: 10px; }
.brand span { font-size: 18px; }
.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav a { color: var(--ink-soft); font-size: 14px; font-weight: 600; padding: 9px 13px; border-radius: 9px; }
.nav a:hover, .nav a[aria-current="page"] { background: var(--mist); color: var(--ink); text-decoration: none; }
.header-cta { margin-left: 8px; }
.menu-toggle {
  display: none; width: 40px; height: 40px; border: 1px solid var(--line);
  background: var(--paper); border-radius: 10px; cursor: pointer; padding: 10px;
}
.menu-toggle span { display: block; height: 2px; background: var(--ink); margin: 4px 0; border-radius: 2px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 42px; padding: 10px 18px; border-radius: 10px;
  border: 1px solid transparent; font-weight: 700; font-size: 14px;
  cursor: pointer; transition: .18s ease; text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn--primary { background: var(--accent); color: #fff; box-shadow: 0 8px 20px rgba(15,159,143,.22); }
.btn--primary:hover { background: var(--accent-dark); }
.btn--ghost { border-color: var(--line); color: var(--ink); background: var(--paper); }
.btn--ghost:hover { background: var(--mist); }
.btn--wide { width: 100%; min-height: 48px; font-size: 15px; }
.btn:disabled { opacity: .6; cursor: wait; transform: none; }

.hero { position: relative; overflow: hidden; padding: 74px 0 54px; background: radial-gradient(circle at 78% 12%, #e7f7f3 0, transparent 38%), linear-gradient(180deg, #fbfdff 0%, #fff 72%); }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(15,23,42,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(15,23,42,.035) 1px, transparent 1px);
  background-size: 44px 44px; mask-image: linear-gradient(to bottom, rgba(0,0,0,.55), transparent 70%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1fr 1.05fr; gap: 54px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-dark); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.hero h1 { margin: 16px 0 16px; font-size: clamp(40px, 5vw, 64px); line-height: 1.02; letter-spacing: -.045em; font-weight: 850; }
.hero p.lead { max-width: 520px; margin: 0 0 26px; color: var(--ink-soft); font-size: 18px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; padding: 0; margin: 26px 0 0; list-style: none; color: var(--muted); font-size: 13px; }
.hero-points li { display: flex; align-items: center; gap: 7px; }
.hero-points li::before { content: "✓"; color: var(--accent); font-weight: 900; }

.speed-card { background: var(--paper); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); padding: 24px; }
.speed-card__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.speed-card__head h2 { margin: 3px 0 0; font-size: 18px; letter-spacing: -.02em; }
.speed-card__head .dot { display: inline-block; width: 7px; height: 7px; margin: 0 6px 2px; border-radius: 50%; background: var(--accent); }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 11px; font-weight: 700; white-space: nowrap; }
.speed-card__body { display: grid; grid-template-columns: 200px 1fr; gap: 22px; align-items: center; margin-bottom: 20px; }
.gauge {
  --pct: 0;
  width: 200px; height: 200px; border-radius: 50%;
  background: conic-gradient(var(--accent) calc(var(--pct) * 1%), #e9eff5 0);
  padding: 13px; position: relative; transition: background .3s ease;
}
.gauge__inner { width: 100%; height: 100%; border-radius: 50%; background: var(--paper); display: grid; place-content: center; text-align: center; box-shadow: inset 0 0 0 1px #eef3f8; }
.gauge__inner span { font-size: 42px; line-height: 1; font-weight: 850; letter-spacing: -.05em; }
.gauge__inner small { color: var(--muted); font-size: 12px; font-weight: 700; margin-top: 6px; }
.metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.metric { min-height: 82px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: #fbfdff; }
.metric span { display: block; color: var(--muted); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.metric strong { display: inline-block; margin-top: 4px; font-size: 21px; line-height: 1.2; letter-spacing: -.03em; }
.metric small { color: var(--muted); font-size: 11px; margin-left: 3px; }
.fine { margin: 11px 0 0; color: var(--muted); font-size: 11px; text-align: center; }

.section { padding: 76px 0; }
.section--mist { background: var(--mist); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 700px; margin-bottom: 36px; }
.section-head h2 { margin: 0 0 12px; font-size: clamp(28px, 3vw, 40px); letter-spacing: -.035em; line-height: 1.1; }
.section-head p { margin: 0; color: var(--muted); font-size: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.feature__icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: var(--accent-soft); color: var(--accent-dark); margin-bottom: 16px; }
.feature h3 { margin: 0 0 8px; font-size: 17px; letter-spacing: -.02em; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; counter-reset: step; }
.step { position: relative; padding-top: 10px; }
.step::before { counter-increment: step; content: "0" counter(step); display: block; color: var(--accent); font-size: 12px; font-weight: 850; letter-spacing: .12em; margin-bottom: 12px; }
.step h3 { margin: 0 0 8px; font-size: 18px; letter-spacing: -.02em; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

.faq { display: grid; gap: 10px; max-width: 860px; }
details { border: 1px solid var(--line); border-radius: 12px; background: var(--paper); padding: 0 18px; }
summary { cursor: pointer; padding: 16px 0; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 18px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--accent); font-size: 18px; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { margin: 0 0 18px; color: var(--muted); font-size: 14px; }

.cta-band { background: var(--ink); color: #fff; border-radius: 24px; padding: 44px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.cta-band h2 { margin: 0 0 8px; font-size: clamp(24px, 3vw, 34px); letter-spacing: -.03em; }
.cta-band p { margin: 0; color: #b8c4d6; font-size: 15px; }
.cta-band .btn--primary { flex: none; }

.site-footer { padding: 52px 0 28px; background: #fff; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 32px; }
.footer-grid p { max-width: 320px; color: var(--muted); font-size: 13px; }
.footer-col h4 { margin: 0 0 12px; font-size: 12px; text-transform: uppercase; letter-spacing: .1em; color: var(--ink); }
.footer-col a { display: block; color: var(--muted); font-size: 13px; padding: 3px 0; }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; padding-top: 24px; margin-top: 34px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }

.page-hero { padding: 64px 0 42px; background: linear-gradient(180deg, #fbfdff, #fff); border-bottom: 1px solid var(--line); }
.page-hero h1 { margin: 10px 0 12px; font-size: clamp(34px, 4vw, 52px); letter-spacing: -.04em; line-height: 1.08; }
.page-hero p { max-width: 680px; margin: 0; color: var(--muted); font-size: 17px; }
.prose { max-width: 780px; }
.prose h2 { margin: 40px 0 12px; font-size: 24px; letter-spacing: -.025em; }
.prose h3 { margin: 28px 0 8px; font-size: 18px; }
.prose p, .prose li { color: var(--ink-soft); font-size: 15px; }
.prose ul { padding-left: 22px; }
.prose .updated { color: var(--muted); font-size: 13px; }

.status-banner { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border: 1px solid #b8eadf; background: #effaf7; border-radius: 12px; color: #086b5e; font-weight: 700; margin-bottom: 28px; }
.status-banner::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(15,159,143,.14); }
.status-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; font-size: 14px; }
.status-table th, .status-table td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.status-table th { background: var(--mist); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.status-table tr:last-child td { border-bottom: 0; }
.badge { display: inline-flex; align-items: center; gap: 6px; color: #086b5e; background: var(--accent-soft); padding: 4px 9px; border-radius: 999px; font-size: 11px; font-weight: 800; }
.bars { display: flex; gap: 2px; align-items: flex-end; height: 28px; }
.bars i { display: block; width: 4px; border-radius: 1px; background: var(--accent); opacity: .75; }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.article-card { border: 1px solid var(--line); border-radius: 16px; padding: 22px; background: #fff; display: flex; flex-direction: column; min-height: 200px; }
.article-card .tag { color: var(--accent-dark); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.article-card h3 { margin: 10px 0 8px; font-size: 19px; line-height: 1.25; letter-spacing: -.02em; }
.article-card h3 a { color: var(--ink); }
.article-card p { margin: 0 0 18px; color: var(--muted); font-size: 13px; }
.article-card .read { margin-top: auto; font-size: 13px; font-weight: 700; }
.article-body { max-width: 760px; }
.article-body h1 { margin: 10px 0 14px; font-size: clamp(32px, 4vw, 48px); line-height: 1.08; letter-spacing: -.04em; }
.article-body .meta { color: var(--muted); font-size: 13px; margin-bottom: 28px; }
.article-body h2 { margin: 34px 0 10px; font-size: 24px; letter-spacing: -.02em; }
.article-body p, .article-body li { color: var(--ink-soft); font-size: 16px; }
.article-body blockquote { margin: 24px 0; padding: 4px 0 4px 18px; border-left: 3px solid var(--accent); color: var(--ink-soft); }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero { padding-top: 48px; }
  .grid-3, .steps, .article-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 32px; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 28px, 1120px); }
  .nav { display: none; position: absolute; top: 72px; left: 14px; right: 14px; flex-direction: column; align-items: stretch; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 10px; box-shadow: var(--shadow); }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 14px; }
  .header-cta { display: none; }
  .menu-toggle { display: block; margin-left: auto; }
  .speed-card__body { grid-template-columns: 1fr; justify-items: center; }
  .metrics { width: 100%; }
  .gauge { width: 180px; height: 180px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .status-table { font-size: 12px; }
  .status-table th, .status-table td { padding: 11px 10px; }
}