/* style.css - mobile-first, responsive, SEO-friendly */
:root{
  --blue:#1a73e8;
  --blue-dark:#0f5fd1;
  --bg:#f6f9ff;
  --text:#11233a;
  --muted:#6b7a90;
  --card:#ffffff;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:Inter,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
.container{max-width:1100px;margin:0 auto;padding:16px}
.header{background:#fff;border-bottom:1px solid #e6f0ff;position:sticky;top:0;z-index:90}
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;gap:12px}
.logo{height:44px}
.menu{display:flex;gap:10px;align-items:center}
.menu a{text-decoration:none;color:var(--text);padding:8px 10px;border-radius:8px;font-weight:600}
.menu a:hover{background:#eef6ff;color:var(--blue)}
.hero{background:linear-gradient(180deg,#eaf4ff,#ffffff);padding:34px 16px;border-radius:12px;margin:16px 0}
.kicker{color:var(--blue);font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}
.hero h1{font-size:clamp(20px,6vw,34px);color:#0f2a59;margin-bottom:10px}
.hero p{color:var(--muted);font-size:clamp(14px,3.2vw,18px);max-width:800px;margin:0 auto}
.btn{display:inline-block;background:linear-gradient(90deg,var(--blue),var(--blue-dark));color:#fff;padding:12px 20px;border-radius:10px;text-decoration:none;font-weight:700;margin-top:14px;box-shadow:0 8px 20px rgba(26,115,232,.12)}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.badge{background:#eaf4ff;color:var(--blue);padding:6px 10px;border-radius:999px;font-weight:700;font-size:12px}

.section{margin:18px 0;padding:12px}
.grid{display:grid;gap:12px}
.grid-3{grid-template-columns:repeat(3,1fr)}

.card{background:var(--card);padding:14px;border-radius:12px;border:1px solid #e9f4ff;box-shadow:0 6px 18px rgba(16,64,128,0.04)}
.card h3{color:var(--blue);margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}

.article{background:#fff;border-radius:12px;padding:18px;border:1px solid #eef6ff;box-shadow:0 8px 30px rgba(16,64,128,0.04);margin:12px 0}
.article h1{color:#0f2a59;margin-bottom:10px;font-size:clamp(20px,4.5vw,28px)}
.meta{color:var(--muted);font-size:13px;margin-bottom:12px}

.footer{background:var(--blue);color:#fff;padding:16px;margin-top:22px;border-radius:8px}
.footer a{color:#e6f4ff;text-decoration:underline}

@media (max-width:900px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  .menu{display:none}
  .grid-3{grid-template-columns:1fr}
  .nav{padding:10px}
  .logo{height:38px}
  .hero{padding:24px}
  .btn{padding:10px 16px}
  .container{padding:12px}
}