:root{
  --bg:#0f1220;
  --surface:#181c2e;
  --surface-2:#20263f;
  --ink:#eef0f7;
  --ink-soft:#a6abc4;
  --accent:#6d7dff;
  --accent-2:#39d0c4;
  --line:#2b3150;
  --ok:#39c07a;
  --err:#ff6b6b;
  --pending:#e0b24a;
  --radius:14px;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
.container{max-width:1040px;margin:0 auto;padding:0 20px}
.container.narrow{max-width:640px}
a{color:var(--accent-2);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.2;letter-spacing:-.01em}
h1{font-size:2.3rem;margin:0 0 .5em}
h2{font-size:1.7rem;margin:0 0 1rem}
code{font-family:var(--mono);background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:.9em}
.muted{color:var(--ink-soft)}

/* header */
.site-header{
  position:sticky;top:0;z-index:20;background:rgba(15,18,32,.85);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:1.15rem}
.brand:hover{text-decoration:none}
.nav-menu{display:flex;gap:24px}
.nav-menu a{color:var(--ink-soft);font-weight:500}
.nav-menu a:hover{color:var(--ink);text-decoration:none}
.nav-toggle{display:none;background:none;border:0;color:var(--ink);font-size:1.4rem;cursor:pointer}

/* hero */
.hero{padding:72px 0;background:
  radial-gradient(1200px 400px at 80% -10%,rgba(109,125,255,.25),transparent),
  radial-gradient(900px 400px at 0% 120%,rgba(57,208,196,.18),transparent);}
.hero-inner{display:flex;align-items:center;gap:40px}
.hero-text{flex:1}
.hero-text p{color:var(--ink-soft);font-size:1.1rem;max-width:46ch}
.hero-art{flex:0 0 auto}
.hero-art img{max-width:100%;height:auto;filter:drop-shadow(0 20px 40px rgba(0,0,0,.4))}

/* buttons */
.btn{
  display:inline-block;margin-top:18px;padding:12px 22px;border-radius:999px;border:0;
  background:linear-gradient(120deg,var(--accent),var(--accent-2));color:#0b0e1a;
  font-weight:700;font-size:1rem;cursor:pointer;font-family:inherit;
}
.btn:hover{text-decoration:none;filter:brightness(1.07)}

/* sections */
.section{padding:64px 0}
.section.alt{background:var(--surface)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;
}
.section.alt .card{background:var(--surface-2)}
.card h3{margin:12px 0 6px}
.card p{color:var(--ink-soft);margin:0}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.gallery img{width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--line)}

/* form */
.form{display:flex;flex-direction:column;gap:16px;margin-top:20px}
.form label{display:flex;flex-direction:column;gap:6px;font-weight:600}
.form input{
  padding:12px 14px;border-radius:10px;border:1px solid var(--line);
  background:var(--bg);color:var(--ink);font-size:1rem;font-family:inherit;
}
.form input:focus{outline:2px solid var(--accent);border-color:transparent}
.status{margin:0;font-size:.95rem;min-height:1.4em}
.status.pending{color:var(--pending)}
.status.ok{color:var(--ok)}
.status.err{color:var(--err)}

.preview{margin-top:20px}
.preview summary{cursor:pointer;color:var(--ink-soft)}
.preview pre{
  background:var(--surface-2);border:1px solid var(--line);border-radius:10px;
  padding:16px;overflow:auto;font-family:var(--mono);font-size:.85rem;
}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:28px 0;color:var(--ink-soft)}

@media (max-width:720px){
  .nav-menu{
    display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;
    gap:0;background:var(--surface);border-bottom:1px solid var(--line);
  }
  .nav-menu.open{display:flex}
  .nav-menu a{padding:14px 20px;border-top:1px solid var(--line)}
  .nav-toggle{display:block}
  .hero-inner{flex-direction:column-reverse;text-align:center}
  .hero-text p{margin-inline:auto}
  h1{font-size:1.9rem}
}