:root{
  --navy:#1D2B53; --navy2:#14213D; --cream:#FAF6EF; --orange:#F2A65A; --teal:#3FB6A8; --coral:#D96C6C;
  --txt:#33415C; --muted:#6B7A99; --line:#E9E2D5; --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Inter',sans-serif;color:var(--txt);background:var(--cream);line-height:1.6;}
h1,h2,h3,h4{font-family:'Poppins',sans-serif;color:var(--navy);line-height:1.3;}
img{max-width:100%;}
a{text-decoration:none;color:inherit;}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px;}
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:12px;font-weight:600;font-size:15px;transition:.2s;border:none;cursor:pointer;font-family:'Poppins',sans-serif;}
.btn-primary{background:var(--orange);color:var(--navy2);box-shadow:0 6px 18px rgba(242,166,90,.35);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(242,166,90,.45);}
.btn-ghost{background:transparent;color:var(--navy);border:1.5px solid var(--navy);}
.btn-ghost:hover{background:var(--navy);color:#fff;}
.tag{display:inline-block;background:rgba(63,182,168,.12);color:#2C8A7F;font-weight:600;font-size:13px;padding:6px 14px;border-radius:20px;margin-bottom:18px;}

/* HEADER */
header{position:sticky;top:0;z-index:100;background:rgba(250,246,239,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;}
.nav .logo img{height:44px;display:block;}
.nav-links{display:flex;gap:30px;align-items:center;font-weight:500;font-size:15px;}
.nav-links a:hover{color:var(--orange);}
.nav .cta{display:flex;gap:12px;align-items:center;}
.burger{display:none;font-size:22px;color:var(--navy);background:none;border:none;cursor:pointer;}

/* BREADCRUMB */
.crumb{padding:22px 0 0;font-size:13.5px;color:var(--muted);}
.crumb a:hover{color:var(--orange);}

/* BLOG INDEX */
.blog-hero{padding:40px 0 20px;text-align:center;max-width:680px;margin:0 auto;}
.blog-hero h1{font-size:38px;margin-bottom:12px;}
.blog-hero p{color:var(--muted);font-size:17px;}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;padding:40px 0 80px;}
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;flex-direction:column;gap:12px;transition:.2s;}
.post-card:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(29,43,83,.1);}
.post-card .cat{font-size:12px;font-weight:700;color:var(--teal);text-transform:uppercase;letter-spacing:.5px;}
.post-card h2{font-size:19px;}
.post-card p{color:var(--muted);font-size:14.5px;}
.post-card .more{color:var(--orange);font-weight:600;font-size:14px;margin-top:auto;}

/* ARTICLE */
article.post{max-width:720px;margin:0 auto;padding:38px 0 30px;}
article.post .meta{color:var(--muted);font-size:13.5px;margin-bottom:16px;}
article.post h1{font-size:36px;margin-bottom:18px;}
article.post .lead{font-size:18px;color:var(--muted);margin-bottom:8px;}
.prose{max-width:720px;margin:0 auto;padding-bottom:60px;font-size:16.5px;}
.prose h2{font-size:26px;margin:38px 0 16px;}
.prose h3{font-size:20px;margin:28px 0 12px;color:var(--navy);}
.prose p{margin-bottom:18px;}
.prose ul,.prose ol{margin:0 0 18px 22px;}
.prose li{margin-bottom:8px;}
.prose strong{color:var(--navy);}
.prose a{color:var(--teal);font-weight:600;text-decoration:underline;}
.cta-box{background:var(--navy);color:#fff;border-radius:20px;padding:40px;text-align:center;margin:40px 0;}
.cta-box h3{color:#fff;font-size:24px;margin-bottom:10px;}
.cta-box p{color:#b9c2d9;margin-bottom:22px;}
.related{max-width:720px;margin:0 auto;padding-bottom:70px;}
.related h3{margin-bottom:18px;}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}

/* FOOTER */
footer{background:var(--navy2);color:#8E9BB8;padding:46px 0 34px;font-size:14px;}
.foot{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;}
.foot img{height:38px;}
.foot .links{display:flex;gap:24px;flex-wrap:wrap;}
.foot a:hover{color:#fff;}
.wa-float{position:fixed;bottom:22px;right:22px;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;box-shadow:0 8px 24px rgba(37,211,102,.4);z-index:200;transition:.2s;}
.wa-float:hover{transform:scale(1.1);}

@media(max-width:920px){
  .nav-links{display:none;position:absolute;top:74px;left:0;right:0;background:var(--cream);flex-direction:column;padding:22px;border-bottom:1px solid var(--line);gap:18px;}
  .nav-links.open{display:flex;}
  .burger{display:block;}
  .nav .cta .btn-ghost{display:none;}
  .blog-grid{grid-template-columns:1fr 1fr;}
  .related-grid{grid-template-columns:1fr;}
}
@media(max-width:560px){
  .blog-hero h1{font-size:28px;}
  article.post h1{font-size:27px;}
  .blog-grid{grid-template-columns:1fr;}
  .cta-box{padding:28px 20px;}
}