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

body {
  background: #050505;
  color: #fff;
  font-family: Arial, sans-serif;
  overflow-x: hidden;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 115px;
  z-index: 100;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo img {
  width: 200px;
  height: 100px;
  object-fit: contain;
  transform: scale(1.35);
}

.menu-btn {
  position: absolute;
  left: 24px;
  top: 34px;
  background: transparent;
  border: 0;
  color: #fff;
  font-size: 36px;
  cursor: pointer;
}

.side-menu {
  position: fixed;
  top: 0;
  left: -500px;
  width: 500px;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 200;
  transition: left 0.3s ease;
}

.side-menu.open {
  left: 0;
}

.close-btn {
  position: absolute;
  right: 24px;
  top: 20px;
  background: transparent;
  border: 0;
  color: #fff;
  font-size: 34px;
  cursor: pointer;
}

.side-menu ul {
  list-style: none;
  padding: 80px 24px 24px;
}

.side-menu li {
  margin-bottom: 18px;
}

.side-menu a {
  display: block;
  padding: 12px;
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  font-size: 20px;
  transition: 0.25s ease;
}

.side-menu a:hover {
  background: #8a4af3;
}

.blog-post-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(138,74,243,0.32), transparent 35%),
    linear-gradient(135deg, #050505, #111);
  padding: 145px 24px 85px;
}

.breadcrumb {
  max-width: 1080px;
  margin: 0 auto 28px;
  color: #aaa;
  font-size: 14px;
}

.breadcrumb a {
  color: #ddd;
  text-decoration: none;
}

.breadcrumb span {
  margin: 0 8px;
  color: #777;
}

.blog-article,
.related-posts {
  max-width: 1080px;
  margin: 0 auto;
}

.article-hero {
  text-align: center;
  margin-bottom: 30px;
}

.article-category {
  display: inline-block;
  margin-bottom: 14px;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(138,74,243,0.18);
  color: #d6c2ff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.article-hero h1 {
  font-size: clamp(40px, 5vw, 72px);
  line-height: 1;
  margin-bottom: 18px;
  font-weight: 900;
}

.article-hero p {
  max-width: 820px;
  margin: 0 auto 18px;
  color: #d0d0d0;
  font-size: 18px;
  line-height: 1.7;
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.article-meta span {
  color: #aaa;
  font-size: 14px;
}

.article-featured-image {
  margin-bottom: 28px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 28px;
  padding: 24px;
  text-align: center;
  box-shadow: 0 20px 45px rgba(0,0,0,0.25);
}

.article-featured-image img {
  max-width: 520px;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.article-content {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 28px;
  padding: 38px;
  box-shadow: 0 20px 45px rgba(0,0,0,0.25);
}

.article-content h2 {
  font-size: 32px;
  margin: 34px 0 12px;
}

.article-content h2:first-child {
  margin-top: 0;
}

.article-content h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

.article-content p {
  color: #d5d5d5;
  line-height: 1.8;
  font-size: 17px;
  margin-bottom: 18px;
}

.article-content .lead {
  font-size: 20px;
  color: #fff;
}

.notice-box {
  margin: 24px 0;
  padding: 20px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(220,38,38,0.14), rgba(255,255,255,0.05));
  border: 1px solid rgba(220,38,38,0.45);
  color: #f2f2f2;
  line-height: 1.7;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 22px 0;
}

.info-grid article {
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 22px;
  padding: 22px;
}

.cta-box {
  margin: 30px 0;
  padding: 28px;
  border-radius: 24px;
  background: rgba(138,74,243,0.16);
  border: 1px solid rgba(138,74,243,0.45);
  text-align: center;
}

.cta-box h2 {
  margin-top: 0;
}

.cta-box a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 22px;
  border-radius: 999px;
  background: #fff;
  color: #000;
  text-decoration: none;
  font-weight: 900;
  transition: 0.25s ease;
}

.cta-box a:hover {
  background: #8a4af3;
  color: #fff;
}

.related-posts {
  margin-top: 28px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 28px;
  padding: 30px;
  box-shadow: 0 20px 45px rgba(0,0,0,0.25);
}

.related-posts h2 {
  font-size: 30px;
  margin-bottom: 18px;
  text-align: center;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
}

.related-grid a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 78px;
  padding: 16px;
  border-radius: 18px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  text-decoration: none;
  font-weight: 800;
  text-align: center;
  transition: 0.25s ease;
}

.related-grid a:hover {
  background: #8a4af3;
}

footer {
  background: #000;
  color: #aaa;
  text-align: center;
  padding: 22px 16px;
  font-size: 14px;
}

@media (max-width: 900px) {
  .info-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .site-header {
    height: 105px;
  }

  .logo img {
    width: 155px;
    height: 90px;
  }

  .menu-btn {
    top: 32px;
    left: 18px;
    font-size: 34px;
  }

  .side-menu {
    width: 100%;
  }

  .blog-post-page {
    padding: 130px 16px 70px;
  }

  .article-hero h1 {
    font-size: 38px;
  }

  .article-hero p {
    font-size: 16px;
  }

  .article-content,
  .related-posts {
    padding: 24px;
  }

  .article-content h2 {
    font-size: 27px;
  }

  .article-content p {
    font-size: 16px;
  }

  .article-content .lead {
    font-size: 18px;
  }
}