*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  max-width: 100%;
}

body {
  margin: 0;
  font-family: "Segoe UI", sans-serif;
  background: #f6f8fb;
  color: #333;
}

.blog-container {
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 40px;
  padding: 40px 20px;
}

.blog-hero-img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 25px;
}

.blog-main h1 {
  font-size: 2.4rem;
  color: #004d40;
}

.blog-meta {
  font-size: 0.85rem;
  color: #777;
  margin-bottom: 20px;
}

.intro {
  font-size: 1.1rem;
  line-height: 1.8;
}

.blog-main h2 {
  margin-top: 40px;
  color: #0056b3;
}

.blog-main p {
  line-height: 1.8;
  margin: 15px 0;
}

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

.styled-list li {
  margin-bottom: 10px;
}

.blog-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 50px;
}

.nav-btn {
  text-decoration: none;
  padding: 10px 18px;
  background: #0056b3;
  color: #fff;
  border-radius: 6px;
}

.nav-btn.disabled {
  background: #ccc;
  pointer-events: none;
}

.blog-nav .nav-btn {
  padding: 12px 30px;
  margin: 5px;
  justify-content: space-between;
  background: #ffcc00;
  color: #0056b3;
  font-weight: bold;
  border-radius: 6px;
  transition: 0.3s;
}

.blog-navi .nav-btn {
  padding: 12px 30px;
  margin: 5px;
  justify-content: space-between;
  background: #ffcc00;
  color: #0056b3;
  font-weight: bold;
  border-radius: 6px;
  transition: 0.3s;
}

.blog-nav .nav-btn :hover {
  background: #e6b800;
}

.blog-navi .nav-btn :hover {
  background: #e6b800;
}

.blog-navi {
  text-align: center;
}

.blog-nav {
  text-align: center;
}

.blog-sidebar {
  position: sticky;
  top: 30px;
}

.sidebar-item {
  display: flex;
  gap: 15px;
  margin-bottom: 25px;
}

.sidebar-item img {
  width: 70px;
  height: 70px;
  object-fit: cover;
  border-radius: 8px;
}

.sidebar-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: #00796b;
  text-decoration: underline;
}

.sidebar-item h4 {
  margin: 5px 0;
  font-size: 0.95rem;
}

.sidebar-item h4 a {
  text-decoration: none;
  color: #222;
}

.sidebar-item h4 a:hover {
  color: #0056b3;
}

/* ===== PAGE TRANSITIONS ===== */
.page-transition {
  opacity: 0;
  transform: translateY(10px);
  animation: pageFadeIn 0.6s ease forwards;
}

@keyframes pageFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .blog-container {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .blog-sidebar {
    position: static;
  }
}

@media (max-width: 480px) {
  .blog-container {
    padding: 24px 14px;
  }

  .blog-hero-img {
    border-radius: 8px;
  }

  .blog-main h1 {
    font-size: 1.8rem;
    line-height: 1.3;
  }

  .intro {
    font-size: 1rem;
    line-height: 1.7;
  }

  .blog-main h2 {
    font-size: 1.25rem;
  }

  .blog-main p {
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .blog-navigation {
    flex-direction: column;
    gap: 14px;
  }

  .nav-btn {
    text-align: center;
  }

  .blog-nav {
  display: none;
  }
}
@media (max-width: 480px) {
  .sidebar-item {
    gap: 12px;
  }

  .sidebar-item img {
    width: 60px;
    height: 60px;
  }

  .sidebar-item h4 {
    font-size: 0.9rem;
  }
}