:root{
  --blue:#0061F2;
  --blue-dark:#0048BD;
  --blue-deep:#012E7A;
  --blue-x-light:#EAF1FE;
  --ink:#0A1122;
  --ink-soft:#121C33;
  --ink-line:#22304F;
  --bg:#F5F8FD;
  --surface:#FFFFFF;
  --text:#0E1626;
  --text-soft:#57647F;
  --text-inv:#EAF0FF;
  --text-inv-soft:#93A3C7;
  --border:#E1E7F3;
  --mint:#00C9A2;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:8px;
  --shadow: 0 24px 60px -24px rgba(10,17,34,.28);
  --shadow-sm: 0 10px 24px -12px rgba(10,17,34,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Space Grotesk',sans-serif;
  color:var(--text);
  margin:0 0 .5em;
  line-height:1.12;
  letter-spacing:-.01em;
}
p{margin:0 0 1em;color:var(--text-soft)}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 32px}
.mono{font-family:'IBM Plex Mono',monospace}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:'IBM Plex Mono',monospace;
  font-size:12.5px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;
  color:var(--blue);margin-bottom:18px;
}
.eyebrow::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 0 3px rgba(0,201,162,.18);
  animation:pulse 2.4s ease-in-out infinite;
}
.section-dark .eyebrow{color:#7FB4FF}
@keyframes pulse{
  0%,100%{transform:scale(1);opacity:1}
  50%{transform:scale(1.35);opacity:.6}
}
@media (prefers-reduced-motion: reduce){
  .eyebrow::before{animation:none}
  *{animation-duration:.001ms !important; animation-iteration-count:1 !important; scroll-behavior:auto !important; transition-duration:.001ms !important;}
}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(245,248,253,.78);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:19px;color:var(--text)}
.brand .mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--blue),var(--blue-deep));position:relative;flex:none}
.brand .mark::after{
  content:"";position:absolute;inset:8px;border:2px solid #fff;border-radius:3px;opacity:.9;
}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-size:14.5px;font-weight:500;color:var(--text-soft);transition:color .15s}
.nav-links a:hover{color:var(--blue)}
.nav-links a.current{color:var(--blue)}
.nav-cta{display:flex;align-items:center;gap:20px}
.nav-toggle{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:'Inter',sans-serif;font-weight:600;font-size:15px;
  padding:13px 24px;border-radius:10px;border:1px solid transparent;
  cursor:pointer;transition:transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 24px -10px rgba(0,97,242,.55)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-on-dark{background:#fff;color:var(--blue-deep)}
.btn-on-dark:hover{background:#DCE9FF}
.btn-ghost-on-dark{border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost-on-dark:hover{border-color:#fff}
.btn-sm{padding:9px 16px;font-size:13.5px;border-radius:8px}

/* ---------- layout helpers ---------- */
section{padding:110px 0}
.section-tight{padding:80px 0}
.section-dark{background:var(--ink);color:var(--text-inv)}
.section-dark h2,.section-dark h3,.section-dark h4{color:#fff}
.section-dark p{color:var(--text-inv-soft)}
.section-blue{background:linear-gradient(135deg,var(--blue) 0%, var(--blue-deep) 100%);color:#fff}
.section-blue h2{color:#fff}
.section-blue p{color:#DCE7FF}

.grid-2{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.grid-5{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2-even{display:grid;grid-template-columns:1fr 1fr;gap:24px}

.tag{
  display:inline-flex;align-items:center;font-family:'IBM Plex Mono',monospace;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--blue-x-light);color:var(--blue-deep);
  padding:5px 10px;border-radius:6px;
}
.section-dark .tag{background:rgba(255,255,255,.08);color:#BFD6FF}

.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--shadow-sm);
}
.card h3{font-size:19px;margin-bottom:10px}
.card p{margin-bottom:14px;font-size:14.5px}
.card .chips{display:flex;flex-wrap:wrap;gap:6px}
.icon-badge{
  width:44px;height:44px;border-radius:10px;background:var(--blue-x-light);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--blue);
}
.section-dark .icon-badge{background:rgba(0,97,242,.18);color:#7FB4FF}

.stat-row{display:flex;gap:0;border-top:1px solid var(--border);margin-top:56px}
.stat{flex:1;padding:26px 0;border-right:1px solid var(--border)}
.stat:last-child{border-right:none}
.stat .num{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:30px;color:var(--text)}
.stat .lbl{font-size:13px;color:var(--text-soft);margin-top:4px}
.section-dark .stat-row,.section-blue .stat-row{border-top-color:rgba(255,255,255,.18)}
.section-dark .stat,.section-blue .stat{border-right-color:rgba(255,255,255,.18)}
.section-dark .stat .num,.section-blue .stat .num{color:#fff}
.section-dark .stat .lbl,.section-blue .stat .lbl{color:var(--text-inv-soft)}

.pill-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.pill-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-soft)}
.pill-list li::before{content:"✓";color:var(--blue);font-weight:700;flex:none}
.section-dark .pill-list li::before{color:#7FB4FF}

.browser{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.browser .bar{height:34px;display:flex;align-items:center;gap:6px;padding:0 12px;border-bottom:1px solid var(--border)}
.browser .bar span{width:8px;height:8px;border-radius:50%;background:var(--border)}
.browser .body{padding:22px}

.plan{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:32px;display:flex;flex-direction:column;gap:20px;
}
.plan.featured{border-color:var(--blue);box-shadow:0 24px 60px -24px rgba(0,97,242,.35)}
.plan .price{font-family:'Space Grotesk',sans-serif;font-size:34px;font-weight:700}
.plan .price span{font-family:'Inter',sans-serif;font-size:14px;font-weight:500;color:var(--text-soft)}

.hr-soft{border:none;border-top:1px solid var(--border);margin:0}

.page-hero{padding:64px 0 56px;border-bottom:1px solid var(--border)}
.breadcrumb{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--text-soft);margin-bottom:18px}
.breadcrumb a{color:var(--blue)}

/* ---------- footer ---------- */
footer{background:var(--ink);color:var(--text-inv-soft);padding:74px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:40px}
.footer-brand p{color:var(--text-inv-soft);font-size:14px;max-width:260px}
.footer-col h4{font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:#7FB4FF;margin-bottom:16px;font-weight:600}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14.5px;color:var(--text-inv-soft);transition:color .15s}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:60px;padding-top:26px;border-top:1px solid var(--ink-line);
  display:flex;justify-content:space-between;align-items:center;font-size:13px;color:#5E6C8C;
}
.footer-bottom a{color:#5E6C8C}
.footer-bottom a:hover{color:#fff}

/* ---------- diagram ---------- */
.diagram-wrap{margin-top:64px}
.node-label{font-family:'IBM Plex Mono',monospace;font-size:11px;font-weight:600;fill:var(--text)}
.node-label-sub{font-family:'IBM Plex Mono',monospace;font-size:9px;fill:var(--text-soft)}
.core-pulse{animation:corepulse 3.2s ease-in-out infinite}
@keyframes corepulse{
  0%,100%{filter:drop-shadow(0 0 0px rgba(0,97,242,.0))}
  50%{filter:drop-shadow(0 0 22px rgba(0,97,242,.55))}
}

@media (max-width: 980px){
  .nav-links{display:none}
  .grid-2{grid-template-columns:1fr;gap:36px}
  .grid-5{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .grid-2-even{grid-template-columns:1fr}
  .stat-row{flex-wrap:wrap}
  .stat{flex:1 1 50%;border-right:none;border-bottom:1px solid var(--border)}
  .footer-grid{grid-template-columns:1fr 1fr}
  section{padding:74px 0}
  h1{font-size:36px !important}
}
@media (max-width: 560px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:10px;align-items:flex-start}
}