:root{
  --bg:#0e1116;
  --surface:#161b22;
  --surface-2:#1d242e;
  --text:#e6edf3;
  --muted:#9aa7b4;
  --accent:#3fb6f0;
  --accent-ink:#06131c;
  --border:#263140;
  --maxw:1080px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.narrow{max-width:680px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.2;margin:0 0 .5em}
h1{font-size:2.25rem;letter-spacing:-.02em}
h2{font-size:1.4rem}
p{margin:0 0 1rem}

.skip{position:absolute;left:-9999px;top:0;background:var(--accent);color:var(--accent-ink);padding:8px 14px}
.skip:focus{left:8px;top:8px;z-index:100}

/* Header */
.site-header{border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:16px}
.brand{display:inline-flex;align-items:center}
.brand img{display:block;width:auto}
.site-nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.site-nav a{display:block;padding:10px 14px;border-radius:8px;color:var(--text);font-weight:500}
.site-nav a:hover{background:var(--surface-2);text-decoration:none}
.site-nav a[aria-current=page]{color:var(--accent)}
.nav-toggle,.nav-toggle-label{display:none}

/* Hero */
.hero{padding:72px 0 56px;background:radial-gradient(1000px 400px at 70% -10%,rgba(63,182,240,.14),transparent)}
.hero h1{font-size:2.75rem}
.lede{font-size:1.2rem;color:var(--muted);max-width:64ch}
.btn{display:inline-block;margin-top:12px;background:var(--accent);color:var(--accent-ink);
  font-weight:600;padding:12px 22px;border-radius:10px;border:0;cursor:pointer;font-size:1rem}
.btn:hover{text-decoration:none;filter:brightness(1.08)}

/* Cards */
.cards{padding:24px 0 72px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:26px;color:var(--text);transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent);transform:translateY(-2px);text-decoration:none}
.card h2{color:var(--text)}
.card p{color:var(--muted);margin:0}

/* Interior pages */
.page{padding:56px 0 72px}
.page .lede,.page p{color:var(--muted)}
.page p{max-width:72ch}
.page h1{color:var(--text)}

/* Contact form */
.contact-form{margin-top:8px}
.field{margin-bottom:18px;display:flex;flex-direction:column;gap:6px}
.field label{font-weight:600;color:var(--text)}
.field input,.field textarea{
  background:var(--surface);border:1px solid var(--border);border-radius:10px;
  color:var(--text);padding:12px 14px;font:inherit;width:100%}
.field input:focus,.field textarea:focus{outline:2px solid var(--accent);border-color:var(--accent)}
.err{color:#ff8484;font-size:.9rem}
.hp{position:absolute;left:-9999px}
.notice{padding:14px 16px;border-radius:10px;margin-bottom:18px}
.notice.success{background:rgba(63,182,240,.12);border:1px solid var(--accent);color:var(--text)}
.notice.error{background:rgba(255,80,80,.1);border:1px solid #ff8484;color:#ffd6d6}

/* Footer */
.site-footer{border-top:1px solid var(--border);background:var(--surface);padding:32px 0;margin-top:auto}
.footer-inner{display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px}
.footer-brand{font-weight:700;margin:0}
.site-footer nav ul{display:flex;flex-wrap:wrap;gap:16px;list-style:none;margin:0;padding:0}
.site-footer a{color:var(--muted)}
.copyright{color:var(--muted);margin:0;flex-basis:100%;font-size:.9rem}
html,body{min-height:100%}
body{display:flex;flex-direction:column}

/* Mobile */
@media (max-width:760px){
  .grid{grid-template-columns:1fr}
  .hero h1{font-size:2.1rem}
  .nav-toggle-label{display:block;cursor:pointer;padding:10px}
  .nav-toggle-label span,.nav-toggle-label span::before,.nav-toggle-label span::after{
    display:block;width:24px;height:2px;background:var(--text);position:relative;transition:.2s}
  .nav-toggle-label span::before{content:"";position:absolute;top:-7px}
  .nav-toggle-label span::after{content:"";position:absolute;top:7px}
  .site-nav{flex-basis:100%;display:none}
  .nav-toggle:checked ~ .site-nav{display:block}
  .site-nav ul{flex-direction:column;gap:2px;padding-bottom:12px}
  .header-inner{flex-wrap:wrap}
}