/* =========================
   BLOG GSB PREMIUM
========================= */

:root{
  --primary:#0b3d91;
  --primary-light:#1e6ee6;
  --bg:#f4f8ff;
  --card:#ffffff;
  --text:#0a2540;
  --muted:#6b7280;
  --shadow:0 10px 28px rgba(0,0,0,0.08);
}

*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}

body{
  font-family: Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height:1.7;
}

/* ================= HERO ================= */
.blog-header{
  background: linear-gradient(135deg,var(--primary),var(--primary-light));
  color:white;
  padding:100px 20px;
  text-align:center;
  position:relative;
  overflow:hidden;
}

.blog-header::after{
  content:"";
  position:absolute;
  bottom:-50px;
  left:0;
  width:100%;
  height:100px;
  background: rgba(255,255,255,0.08);
  transform: skewY(-2deg);
}

.blog-hero-content{
  max-width:900px;
  margin:auto;
  position:relative;
  z-index:2;
}

.blog-tag{
  display:inline-block;
  background:rgba(255,255,255,0.15);
  padding:8px 16px;
  border-radius:30px;
  margin-bottom:20px;
  font-size:14px;
}

.blog-header h1{
  font-size:52px;
  margin-bottom:18px;
  line-height:1.1;
}

.blog-header p{
  max-width:700px;
  margin:auto;
  opacity:0.95;
}

.blog-cta{
  display:inline-block;
  margin-top:28px;
  background:white;
  color:var(--primary);
  padding:14px 24px;
  border-radius:30px;
  text-decoration:none;
  font-weight:bold;
  transition:0.3s;
}

.blog-cta:hover{
  transform:translateY(-2px);
}

/* ================= SEARCH ================= */
.blog-search{
  max-width:720px;
  margin:50px auto;
  padding:0 20px;
}

.blog-search input{
  width:100%;
  padding:18px 20px;
  border:1px solid #d9e5ff;
  border-radius:16px;
  font-size:16px;
  box-shadow:0 6px 18px rgba(0,0,0,0.04);
}

/* ================= FEATURED ================= */
.featured-post{
  max-width:1100px;
  margin:50px auto;
  padding:45px;
  background:white;
  border-left:6px solid var(--primary-light);
  border-radius:18px;
  box-shadow:var(--shadow);
}

.featured-post h2{
  margin:15px 0;
  font-size:30px;
}

.featured-post p{
  color:var(--muted);
}

/* ================= CATEGORIES ================= */
.blog-categories{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:15px;
  margin:45px 20px;
}

.blog-categories a{
  text-decoration:none;
  background:white;
  padding:12px 20px;
  border-radius:24px;
  color:var(--primary);
  font-weight:bold;
  box-shadow:0 4px 12px rgba(0,0,0,0.04);
  transition:0.3s;
}

.blog-categories a:hover{
  transform:translateY(-2px);
}

/* ================= GRID ================= */
.blog-grid{
  max-width:1200px;
  margin:auto;
  padding:50px 20px;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:28px;
}

.post-card{
  background:var(--card);
  border-radius:20px;
  padding:30px;
  box-shadow:var(--shadow);
  transition:0.3s ease;
  border:1px solid rgba(0,0,0,0.03);
}

.post-card:hover{
  transform:translateY(-6px);
  box-shadow:0 16px 35px rgba(0,0,0,0.10);
}

.post-category{
  display:inline-block;
  background:#eef5ff;
  color:var(--primary);
  padding:6px 12px;
  border-radius:18px;
  font-size:13px;
  font-weight:bold;
  margin-bottom:15px;
}

.post-card h2{
  margin-bottom:12px;
  font-size:24px;
}

.post-card p{
  color:var(--muted);
}

.post-card a,
.featured-post a{
  display:inline-block;
  margin-top:18px;
  color:var(--primary-light);
  text-decoration:none;
  font-weight:bold;
}

/* ================= CTA FINAL ================= */
.blog-bottom-cta{
  background: linear-gradient(135deg,var(--primary),var(--primary-light));
  color:white;
  text-align:center;
  padding:80px 20px;
  margin-top:70px;
}

.blog-bottom-cta h2{
  font-size:34px;
  margin-bottom:10px;
}

.blog-bottom-cta a{
  display:inline-block;
  margin-top:22px;
  background:white;
  color:var(--primary);
  padding:14px 24px;
  border-radius:30px;
  text-decoration:none;
  font-weight:bold;
}

/* ================= POST INTERIOR ================= */
.post-page{
  max-width:900px;
  margin:auto;
  padding:70px 20px;
}

.post-meta{
  display:flex;
  gap:20px;
  flex-wrap:wrap;
  color:var(--muted);
  margin-bottom:30px;
  font-size:14px;
}

.post-intro,
.post-list-block,
.post-impact{
  margin-bottom:40px;
}

.post-list-block h2,
.post-impact h2{
  color:var(--primary);
  margin-bottom:18px;
  font-size:28px;
}

.pro-list{
  padding-left:20px;
}

.pro-list li{
  margin-bottom:16px;
  line-height:1.8;
}

.post-impact{
  background:white;
  padding:30px;
  border-radius:16px;
  box-shadow:var(--shadow);
}

.expert-tip{
  background:#eef5ff;
  border-left:5px solid var(--primary);
  padding:24px;
  border-radius:12px;
  margin:40px 0;
  box-shadow:0 6px 18px rgba(0,0,0,0.04);
}

.post-cta{
  text-align:center;
  margin-top:50px;
}

.post-cta .cta{
  display:inline-block;
  margin-top:18px;
  background:var(--primary);
  color:white;
  padding:14px 24px;
  border-radius:30px;
  text-decoration:none;
  font-weight:bold;
}

/* ================= MOBILE ================= */
@media(max-width:768px){
  .blog-header h1{
    font-size:38px;
  }

  .featured-post{
    padding:30px;
  }

  .post-card{
    padding:24px;
  }
}