:root{
    --bg:#faf9f7; --card:#fff; --muted:#6b6b6b; --accent:#111; --max:900px; --shadow:rgba(11,11,11,0.03); --glass:rgba(255,255,255,0.8);
    --cta-bg:#111; --cta-text:#fff;
  }
  [data-theme="dark"]{
    --bg:#0b0b0c; --card:#0f1113; --muted:#9aa0a6; --accent:#f6f7f8; --shadow:rgba(0,0,0,0.6); --glass:rgba(255,255,255,0.02);
    --cta-bg:#f6f7f8; --cta-text:#0b0b0c;
  }
  *{box-sizing:border-box}
  html,body{height:100%;margin:0;font-family:Inter, system-ui, -apple-system, Roboto, Arial; color:var(--accent); background:var(--bg);}
  .container{max-width:var(--max);margin:0 auto;padding:20px}
  .site-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}
  .brand{font-weight:600;font-size:18px}
  .main-nav{display:flex;gap:16px;align-items:center}
  .main-nav a{color:var(--muted);text-decoration:none;padding:6px 8px;border-radius:8px}
  .main-nav a:hover{color:var(--accent);background:rgba(0,0,0,0.03)}
  .theme-btn{background:transparent;border:1px solid rgba(0,0,0,0.06);padding:8px 10px;border-radius:8px;cursor:pointer}
  .card{background:var(--card);padding:20px;border-radius:10px;box-shadow:0 6px 18px var(--shadow)}
  .mt{margin-top:18px}
  .hero{display:grid;grid-template-columns:1fr 420px;gap:24px;align-items:center;padding:24px;border-radius:12px;background:linear-gradient(180deg,var(--glass),rgba(255,255,255,0.02));}
  .hero-copy h1{margin:0;font-size:30px}
  .hero-copy p{color:var(--muted);margin-top:10px}
  .hero-media img{width:100%;height:260px;object-fit:cover;border-radius:8px;display:block}
  .two-up{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:12px}
  .cta,button.cta{display:inline-block;margin-top:14px;padding:10px 18px;border-radius:10px;text-decoration:none;background:var(--cta-bg);color:var(--cta-text);font-weight:500;border:none;transition:opacity 0.2s ease-in-out}
  .cta:hover,button.cta:hover{opacity:0.85}
  .muted{color:var(--muted)}
  input,textarea{width:100%;padding:10px;border-radius:8px;border:1px solid #eee;margin-top:6px;background:transparent;color:var(--accent)}
  button[type="submit"],.theme-btn{cursor:pointer}
  .form-embed iframe{width:100%;border:none;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,0.1)}
  @media (max-width:900px){.hero{grid-template-columns:1fr}.hero-media img{height:200px}}
  @media (max-width:520px){.main-nav{display:none}}