/* ProCalcApp — Main Site */
:root{
  --primary:#2563eb;--primary-dark:#1d4ed8;--accent:#f59e0b;
  --bg:#f0f4f8;--card:#fff;--text:#0f172a;--text-light:#64748b;
  --border:#e2e8f0;--radius:20px;--shadow:0 1px 3px rgba(0,0,0,.06);
  --shadow-lg:0 20px 40px -12px rgba(0,0,0,.12);
}
[data-theme="dark"]{
  --bg:#0a0f1e;--card:#1e293b;--text:#e2e8f0;--text-light:#94a3b8;--border:#334155;
  --shadow:0 1px 3px rgba(0,0,0,.3);--shadow-lg:0 20px 40px -12px rgba(0,0,0,.5);
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}
.container{max-width:960px;margin:0 auto;padding:0 24px}

header{padding:20px 0;border-bottom:1px solid var(--border)}
.logo{font-size:1.4rem;font-weight:800;color:var(--text);text-decoration:none;letter-spacing:-.5px}
.logo span{color:var(--primary)}

.hero{text-align:center;padding:64px 0 48px}
.hero h1{font-size:2.4rem;font-weight:800;letter-spacing:-1px;margin-bottom:12px}
.hero p{font-size:1.15rem;color:var(--text-light);max-width:560px;margin:0 auto}

.sites{display:flex;flex-direction:column;gap:24px;padding-bottom:64px}
.site-card{
  display:flex;align-items:center;gap:28px;
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius);padding:36px 40px;
  box-shadow:var(--shadow);text-decoration:none;color:var(--text);
  transition:transform .2s,box-shadow .2s;
}
.site-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.site-icon{font-size:3rem;flex-shrink:0;width:72px;height:72px;display:flex;align-items:center;justify-content:center;border-radius:16px;background:var(--bg)}
.site-info{flex:1}
.site-info h2{font-size:1.5rem;font-weight:700;margin-bottom:4px}
.site-info p{color:var(--text-light);font-size:1rem}
.site-tag{display:inline-block;margin-top:8px;padding:3px 10px;border-radius:20px;font-size:.8rem;font-weight:600;background:rgba(37,99,235,.1);color:var(--primary)}
.site-arrow{font-size:1.8rem;color:var(--text-light);flex-shrink:0}

footer{border-top:1px solid var(--border);padding:28px 0;text-align:center;color:var(--text-light);font-size:.9rem}
footer a{color:var(--primary);text-decoration:none}

@media(max-width:600px){
  .hero h1{font-size:1.8rem}
  .site-card{flex-direction:column;text-align:center;padding:28px 24px;gap:16px}
  .site-arrow{display:none}
}