/* Nexeda — shared design system (light modern SaaS) */
:root{
  --bg:#ffffff; --bg-soft:#f8fafc; --bg-mute:#f1f5f9;
  --ink:#0b1220; --ink-2:#334155; --muted:#64748b; --line:#e6eaf0;
  --brand:#2563eb; --brand-2:#4f46e5; --brand-soft:#eef2ff;
  --ok:#059669; --ok-soft:#ecfdf5; --warn:#d97706; --bad:#dc2626;
  --radius:14px; --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.05);
  --shadow:0 1px 2px rgba(15,23,42,.04),0 10px 30px rgba(15,23,42,.07);
  --shadow-lg:0 24px 60px rgba(15,23,42,.12);
  --maxw:1140px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.6;-webkit-font-smoothing:antialiased;font-size:16px}
a{color:inherit;text-decoration:none}
img{max-width:100%}
h1,h2,h3,h4{line-height:1.15;letter-spacing:-.02em;margin:0;font-weight:700}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.7rem,3.5vw,2.5rem)}
h3{font-size:1.25rem}
p{margin:0}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-sm{padding:56px 0}
.eyebrow{font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--brand)}
.lead{font-size:1.15rem;color:var(--ink-2)}
.muted{color:var(--muted)}
.center{text-align:center}
.mx-auto{margin-left:auto;margin-right:auto}
.maxw-720{max-width:720px}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.8);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:28px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;
  letter-spacing:-.02em}
.brand .logo{width:30px;height:30px}
.nav-links{display:flex;gap:26px;margin-left:8px}
.nav-links a{color:var(--ink-2);font-weight:500;font-size:.95rem}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-cta{margin-left:auto;display:flex;gap:12px;align-items:center}
.nav-toggle{display:none}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.95rem;
  padding:11px 20px;border-radius:11px;border:1px solid transparent;cursor:pointer;
  transition:.18s ease;white-space:nowrap}
.btn-primary{background:linear-gradient(180deg,var(--brand),var(--brand-2));color:#fff;
  box-shadow:0 6px 18px rgba(37,99,235,.28)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(37,99,235,.36)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-sm)}
.btn-ghost:hover{border-color:#cbd5e1;background:var(--bg-soft)}
.btn-lg{padding:14px 26px;font-size:1rem}
.btn-link{color:var(--brand);font-weight:600}
.btn-link:hover{text-decoration:underline}

/* hero */
.hero{position:relative;overflow:hidden;
  background:radial-gradient(1200px 500px at 50% -10%,var(--brand-soft),transparent 70%),var(--bg)}
.hero-grid{position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(700px 400px at 50% 0,#000,transparent 75%)}
.hero-inner{position:relative;padding:84px 0 72px;text-align:center}
.pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  padding:6px 14px;border-radius:999px;font-size:.85rem;font-weight:600;color:var(--ink-2);
  box-shadow:var(--shadow-sm)}
.pill .dot{width:8px;height:8px;border-radius:50%;background:var(--ok)}
.hero h1{margin:22px auto 0;max-width:900px}
.grad{background:linear-gradient(120deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{margin:20px auto 0;max-width:640px}
.hero-cta{margin-top:32px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-note{margin-top:16px;font-size:.85rem;color:var(--muted)}

/* logo strip */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-soft)}
.strip-inner{display:flex;align-items:center;justify-content:center;gap:40px;flex-wrap:wrap;
  padding:24px;color:var(--muted);font-size:.85rem;font-weight:600}
.strip-inner b{color:var(--ink-2);font-family:var(--mono)}

/* sections / grids */
.section-head{max-width:680px;margin:0 auto 52px;text-align:center}
.section-head h2{margin-top:12px}
.section-head p{margin-top:14px;font-size:1.1rem;color:var(--ink-2)}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  box-shadow:var(--shadow-sm);transition:.2s ease}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:#dbe3ee}
.card .ic{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:16px}
.card h3{margin-bottom:8px}
.card p{color:var(--ink-2);font-size:.97rem}
.tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
  padding:3px 9px;border-radius:999px;background:var(--bg-mute);color:var(--muted)}
.tag.ok{background:var(--ok-soft);color:var(--ok)}
.tag.brand{background:var(--brand-soft);color:var(--brand)}

/* split feature */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.rev .split-media{order:-1}
.split h2{font-size:2rem}
.split ul{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:12px}
.split li{display:flex;gap:11px;color:var(--ink-2)}
.split li svg{flex:none;color:var(--ok);margin-top:3px}

/* code block */
.code{background:#0b1220;color:#e6edf3;border-radius:var(--radius);padding:18px 20px;
  font-family:var(--mono);font-size:.85rem;line-height:1.7;overflow:auto;
  white-space:pre-wrap;word-break:break-word;margin:0;
  box-shadow:var(--shadow-lg);border:1px solid #1e293b}
.code .c-key{color:#7dd3fc}.code .c-str{color:#86efac}.code .c-com{color:#64748b}
.code-head{display:flex;gap:7px;padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid #1e293b}
.code-head i{width:11px;height:11px;border-radius:50%;display:block}
.code-head i:nth-child(1){background:#ff5f57}.code-head i:nth-child(2){background:#febc2e}
.code-head i:nth-child(3){background:#28c840}

/* loop / steps */
.loop{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;align-items:stretch}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  position:relative;box-shadow:var(--shadow-sm)}
.step .n{font-family:var(--mono);font-size:.8rem;font-weight:700;color:var(--brand)}
.step h4{margin:8px 0 6px;font-size:1.02rem}
.step p{font-size:.88rem;color:var(--muted)}
.step.repair{border-color:#fcd9b6;background:#fffbf5}
.step.repair .n{color:var(--warn)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat{text-align:center;padding:8px}
.stat .num{font-size:2.6rem;font-weight:800;letter-spacing:-.03em;
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{color:var(--muted);font-size:.95rem;margin-top:4px}

/* CTA band */
.cta-band{background:linear-gradient(120deg,#0b1220,#162a52);color:#fff;border-radius:var(--radius-lg);
  padding:56px;text-align:center;position:relative;overflow:hidden}
.cta-band h2{color:#fff}
.cta-band p{color:#c7d2e6;margin:14px auto 28px;max-width:540px}
.cta-band .btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.2)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.16)}

/* footer */
.footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:56px 0 30px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer h5{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 14px}
.footer a{display:block;color:var(--ink-2);font-size:.93rem;padding:5px 0}
.footer a:hover{color:var(--brand)}
.footer .brand{margin-bottom:12px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:.85rem}

/* docs layout */
.docs{display:grid;grid-template-columns:230px 1fr;gap:48px;align-items:start}
.docs-side{position:sticky;top:90px}
.docs-side a{display:block;padding:7px 12px;border-radius:8px;color:var(--ink-2);font-size:.92rem}
.docs-side a:hover{background:var(--bg-mute)}
.docs-side .grp{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);
  margin:18px 0 6px;padding:0 12px}
.docs-body h2{margin:36px 0 12px;scroll-margin-top:90px}
.docs-body h3{margin:24px 0 8px}
.docs-body p,.docs-body li{color:var(--ink-2)}
.docs-body ul{padding-left:20px}
.docs-body pre{margin:14px 0}
.kbd{font-family:var(--mono);background:var(--bg-mute);border:1px solid var(--line);border-radius:6px;
  padding:2px 7px;font-size:.85em}
table.api{width:100%;border-collapse:collapse;margin:14px 0;font-size:.92rem}
table.api th,table.api td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
table.api th{color:var(--muted);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}
table.api td code{font-family:var(--mono);font-size:.86rem;color:var(--brand)}

/* responsive */
@media(max-width:920px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .split,.docs{grid-template-columns:1fr;gap:32px}
  .split.rev .split-media{order:0}
  .loop{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .docs-side{position:static}
}
@media(max-width:680px){
  .nav-links{display:none}.grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .loop{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}
  .cta-band{padding:40px 24px}.section{padding:60px 0}
}