@layer pages {
  /* Blog 3D Design System */
  body.blog-page {
    color: var(--clr-slate-200);
    line-height: var(--leading-body);
    background: transparent !important;
    scroll-behavior: smooth;
  }

  .blog-3d-background {
    position: fixed;
    inset: 0;
    z-index: var(--z-none);
    pointer-events: none;
    background:
      radial-gradient(
        ellipse at 20% 30%,
        color-mix(in srgb, var(--clr-blue-500) 15%, transparent) 0%,
        transparent 50%
      ),
      radial-gradient(
        ellipse at 80% 70%,
        color-mix(in srgb, var(--clr-violet-500) 15%, transparent) 0%,
        transparent 50%
      );
  }
  #blog-particles-canvas {
    width: 100%;
    height: 100%;
    opacity: 0.8;
  }

  body.blog-page #main-content {
    position: relative;
    z-index: var(--z-base);
    min-height: var(--section-viewport-height);
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  @keyframes blogShimmer {
    0% {
      background-position: calc(var(--size-1000) * -1) 0;
    }
    100% {
      background-position: var(--size-1000) 0;
    }
  }
  @keyframes pageSkeletonShimmer {
    0% {
      background-position: 180% 0;
    }
    100% {
      background-position: -180% 0;
    }
  }
  @keyframes cardFloat {
    0%,
    100% {
      transform: translateZ(var(--size-30)) rotateX(5deg) scale(1.02) translateY(0);
    }
    50% {
      transform: translateZ(var(--size-35)) rotateX(5deg) scale(1.02)
        translateY(calc(var(--size-5) * -1));
    }
  }

  .blog-loading {
    min-height: 50vh;
    max-width: var(--size-1400);
    margin: 0 auto;
    padding: var(--size-r-2);
  }

  .blog-error {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    padding: var(--size-r-2);
  }

  .blog-skeleton-header {
    display: grid;
    gap: var(--size-r-0-75);
    max-width: var(--size-600);
    margin-bottom: var(--size-r-1-25);
  }

  .blog-skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--size-240), 1fr));
    gap: var(--size-r-1-25);
  }

  .blog-skeleton-card {
    min-height: var(--size-360);
    padding: var(--size-r-1);
    border-radius: var(--size-20);
    border: var(--size-1) solid color-mix(in srgb, var(--clr-blue-500) 22%, transparent);
    background:
      linear-gradient(
        135deg,
        color-mix(in srgb, var(--blog-rgb-30-30-60) 28%, transparent),
        color-mix(in srgb, var(--blog-rgb-15-15-40) 58%, transparent)
      ),
      color-mix(in srgb, var(--clr-black) 30%, transparent);
    box-shadow:
      0 var(--size-15) var(--size-50) color-mix(in srgb, var(--clr-black) 42%, transparent),
      inset 0 0 0 var(--size-1) color-mix(in srgb, var(--clr-blue-500) 12%, transparent);
  }

  .blog-skeleton-line,
  .blog-skeleton-media {
    display: block;
    border-radius: var(--size-10);
    background: linear-gradient(
      90deg,
      color-mix(in srgb, var(--clr-white) 7%, transparent) 25%,
      color-mix(in srgb, var(--clr-blue-400) 16%, transparent) 50%,
      color-mix(in srgb, var(--clr-white) 7%, transparent) 75%
    );
    background-size: 220% 100%;
    animation: pageSkeletonShimmer 1.35s ease-in-out infinite;
  }

  .blog-skeleton-media {
    aspect-ratio: 16 / 9;
    margin-bottom: var(--size-r-1);
  }

  .blog-skeleton-line {
    height: var(--size-r-0-85);
    margin-top: var(--size-r-0-65);
  }

  .blog-skeleton-line--title {
    width: min(62vw, var(--size-420));
    height: var(--size-r-2);
  }

  .blog-skeleton-line--subtitle {
    width: min(78vw, 560px);
  }

  .blog-skeleton-line--meta {
    width: 35%;
    height: var(--size-r-0-72);
  }

  .blog-skeleton-line--heading {
    width: 82%;
    height: var(--size-r-1-2);
  }

  .blog-skeleton-line--short {
    width: 56%;
  }

  .blog-inline-error {
    color: var(--state-error-text);
  }

  .blog-post-view,
  .blog-list-view {
    max-width: var(--size-1400);
    margin: 0 auto;
    padding: 0 var(--size-r-2);
  }

  .blog-header {
    padding: var(--size-r-1) 0 var(--size-r-1-5);
    margin-bottom: var(--size-r-1);
  }
  .blog-eyebrow {
    margin-bottom: var(--space-3);
    color: var(--clr-blue-300);
  }
  .blog-header h1 {
    font-size: var(--type-3xl);
    font-weight: 800;
    margin: 0 0 var(--size-r-0-75);
    background: linear-gradient(
      135deg,
      var(--clr-white) 0%,
      var(--clr-blue-500) 50%,
      var(--clr-violet-500) 100%
    );
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: var(--leading-tight);
  }
  .blog-subtitle {
    font-size: var(--type-lg);
    color: color-mix(in srgb, var(--clr-slate-200) 80%, transparent);
    max-width: var(--size-600);
    line-height: var(--leading-body);
  }

  @media (max-width: 768px) {
    .blog-header {
      padding: var(--size-r-0-75) 0 var(--size-r-1);
      margin-bottom: var(--size-r-0-75);
    }

    .blog-header h1 {
      margin-bottom: var(--size-r-0-5);
    }

    .blog-subtitle {
      font-size: var(--type-sm);
      line-height: var(--leading-snug);
    }
  }

  @media (max-width: 480px) {
    .blog-header h1 {
      font-size: var(--type-2xl);
    }

    .blog-subtitle {
      font-size: var(--type-sm);
    }
  }

  /* ===================================
   3D BLOG GRID - THREE.JS STYLE (SMALLER)
   =================================== */

  .blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--size-240), 1fr));
    gap: var(--size-r-1-25);
    perspective: var(--size-1500);
    perspective-origin: center;
  }

  @media (max-width: 768px) {
    .blog-grid {
      grid-template-columns: repeat(auto-fill, minmax(var(--size-200), 1fr));
      gap: var(--size-r-1);
    }
  }

  @media (max-width: 640px) {
    .blog-grid {
      grid-template-columns: 1fr;
      gap: var(--size-r-1);
    }
  }

  @media (max-width: 480px) {
    .blog-grid {
      gap: var(--size-r-0-85);
    }
  }

  /* ===================================
   3D BLOG CARDS - THREE.JS EARTH STYLE
   =================================== */

  .blog-card {
    position: relative;
    background:
      linear-gradient(
        135deg,
        color-mix(in srgb, var(--blog-rgb-30-30-60) 40%, transparent),
        color-mix(in srgb, var(--blog-rgb-15-15-40) 60%, transparent)
      ),
      radial-gradient(
        circle at 50% 0%,
        color-mix(in srgb, var(--clr-blue-500) 10%, transparent),
        transparent 70%
      );
    backdrop-filter: blur(var(--size-20)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--size-20)) saturate(180%);
    border: var(--size-1) solid color-mix(in srgb, var(--clr-blue-500) 30%, transparent);
    border-radius: var(--size-20);
    padding: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition:
      border-color 0.5s cubic-bezier(0.4, 0, 0.2, 1),
      box-shadow 0.5s cubic-bezier(0.4, 0, 0.2, 1),
      transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    cursor: pointer;
    transform-style: preserve-3d;
    transform: translateZ(0) rotateX(0deg) rotateY(0deg);
    box-shadow:
      0 var(--size-15) var(--size-50) color-mix(in srgb, var(--clr-black) 60%, transparent),
      0 0 0 var(--size-1) color-mix(in srgb, var(--clr-blue-500) 20%, transparent) inset,
      0 0 var(--size-80) color-mix(in srgb, var(--clr-blue-500) 5%, transparent) inset,
      0 var(--size-5) var(--size-15) color-mix(in srgb, var(--clr-blue-500) 10%, transparent);
  }

  /* Outer Glow Ring */
  .blog-card::before {
    content: "";
    position: absolute;
    inset: calc(var(--size-2) * -1);
    background: linear-gradient(
      135deg,
      color-mix(in srgb, var(--clr-blue-500) 40%, transparent),
      color-mix(in srgb, var(--clr-violet-500) 40%, transparent),
      color-mix(in srgb, var(--clr-pink-500) 40%, transparent)
    );
    border-radius: var(--size-20);
    opacity: 0;
    filter: blur(var(--size-10));
    transition: opacity 0.5s;
    z-index: var(--z-behind);
  }

  /* Shine Effect */
  .blog-card::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
      45deg,
      transparent 30%,
      color-mix(in srgb, var(--clr-white) 10%, transparent) 50%,
      transparent 70%
    );
    transform: rotate(45deg) translateX(-100%);
    transition: transform 0.8s;
    pointer-events: none;
  }

  .blog-card:hover {
    transform: translateZ(var(--size-30)) rotateX(5deg) scale(1.02);
    border-color: color-mix(in srgb, var(--clr-blue-500) 60%, transparent);
    box-shadow:
      0 var(--size-30) var(--size-80) color-mix(in srgb, var(--clr-blue-500) 40%, transparent),
      0 0 var(--size-100) color-mix(in srgb, var(--clr-violet-500) 30%, transparent),
      0 0 0 var(--size-1) color-mix(in srgb, var(--clr-blue-500) 50%, transparent) inset,
      0 0 var(--size-120) color-mix(in srgb, var(--clr-blue-500) 15%, transparent) inset,
      0 var(--size-10) var(--size-30) color-mix(in srgb, var(--clr-blue-500) 20%, transparent);
  }

  .blog-card:hover::before {
    opacity: 1;
  }

  .blog-card:hover::after {
    transform: rotate(45deg) translateX(100%);
  }

  .blog-card > * {
    position: relative;
    z-index: var(--z-base);
  }

  /* Holographic Effect on Hover */
  @media (hover: hover) {
    .blog-card {
      transition:
        border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
        box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .blog-card:hover {
      animation: cardFloat 3s ease-in-out infinite;
    }
  }

  /* ===================================
   CARD IMAGE - THREE.JS STYLE (SMALLER)
   =================================== */

  .progressive-image-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: var(--size-20) var(--size-20) 0 0;
    background:
      linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-primary) 50%, var(--bg-primary) 100%),
      radial-gradient(
        circle at 50% 50%,
        color-mix(in srgb, var(--clr-blue-500) 10%, transparent),
        transparent
      );
    background-size:
      200% 100%,
      100% 100%;
    animation: blogShimmer 3s infinite;
    height: var(--size-140);
    width: 100%;
  }

  .progressive-image-wrapper.loaded {
    animation: none;
    background: radial-gradient(
      circle at 50% 0%,
      color-mix(in srgb, var(--clr-blue-500) 10%, transparent),
      var(--bg-primary)
    );
  }

  .progressive-image-wrapper img {
    opacity: 0;
    transition:
      opacity 0.6s ease-in-out,
      transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    filter: brightness(0.9) contrast(1.1);
  }

  .progressive-image-wrapper.loaded img {
    opacity: 1;
  }

  .blog-card-image {
    width: 100%;
    height: var(--size-140);
    object-fit: cover;
    display: block;
    transition:
      filter 0.6s cubic-bezier(0.4, 0, 0.2, 1),
      transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .blog-card:hover .blog-card-image {
    transform: scale(1.08);
    filter: brightness(1.1) contrast(1.15) saturate(1.2);
  }

  /* Image Overlay Glow */
  .progressive-image-wrapper::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
      180deg,
      transparent 0%,
      color-mix(in srgb, var(--clr-blue-500) 10%, transparent) 100%
    );
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
  }

  .blog-card:hover .progressive-image-wrapper::after {
    opacity: 1;
  }

  /* ===================================
   CARD CONTENT - THREE.JS STYLE (SMALLER)
   =================================== */

  .blog-card .card-content-wrapper {
    padding: var(--size-r-0-85);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    background: linear-gradient(
      180deg,
      color-mix(in srgb, var(--blog-rgb-10-10-30) 50%, transparent) 0%,
      color-mix(in srgb, var(--blog-rgb-10-10-30) 80%, transparent) 100%
    );
  }

  .blog-card .card-meta,
  .blog-article .meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--size-r-0-6);
    gap: var(--size-r-0-4);
  }

  .blog-card .card-category,
  .blog-article .card-category {
    font-size: var(--type-xs);
    text-transform: uppercase;
    color: var(--clr-white);
    font-weight: 700;
    background: linear-gradient(135deg, var(--clr-blue-500), var(--clr-violet-500));
    padding: var(--size-r-0-25) var(--size-r-0-55);
    border-radius: var(--size-8);
    box-shadow:
      0 var(--size-2) var(--size-8) color-mix(in srgb, var(--clr-blue-500) 40%, transparent),
      0 0 var(--size-15) color-mix(in srgb, var(--clr-blue-500) 20%, transparent) inset;
    position: relative;
    overflow: hidden;
  }

  .card-category::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
      90deg,
      transparent,
      color-mix(in srgb, var(--clr-white) 30%, transparent),
      transparent
    );
    transition: left 0.5s;
  }

  .blog-card:hover .card-category::before {
    left: 100%;
  }

  .blog-card .card-date,
  .blog-article .card-date {
    font-size: var(--type-xs);
    color: color-mix(in srgb, var(--clr-slate-400) 70%, transparent);
    font-weight: 500;
    text-shadow: 0 0 var(--size-10) color-mix(in srgb, var(--clr-blue-500) 30%, transparent);
  }

  .blog-card .card-title {
    font-size: var(--type-lg);
    font-weight: 700;
    margin: 0 0 var(--size-r-0-5) 0;
    line-height: var(--leading-snug);
    color: var(--clr-white);
    text-shadow:
      0 var(--size-2) var(--size-8) color-mix(in srgb, var(--clr-black) 50%, transparent),
      0 0 var(--size-20) color-mix(in srgb, var(--clr-blue-500) 20%, transparent);
    transition:
      color 0.3s,
      text-shadow 0.3s;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .blog-card:hover .card-title {
    color: var(--clr-blue-300);
    text-shadow:
      0 var(--size-2) var(--size-8) color-mix(in srgb, var(--clr-black) 50%, transparent),
      0 0 var(--size-30) color-mix(in srgb, var(--clr-blue-500) 50%, transparent);
  }

  .blog-card .card-excerpt {
    color: color-mix(in srgb, var(--clr-slate-200) 75%, transparent);
    line-height: var(--leading-body);
    margin-bottom: var(--size-r-0-85);
    flex-grow: 1;
    font-size: var(--type-sm);
    text-shadow: 0 var(--size-1) var(--size-3) color-mix(in srgb, var(--clr-black) 50%, transparent);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .blog-card .card-footer {
    border-top: var(--size-1) solid color-mix(in srgb, var(--clr-blue-500) 20%, transparent);
    padding-top: var(--size-r-0-7);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--size-r-0-4);
    position: relative;
  }

  .blog-card .card-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: var(--size-1);
    background: linear-gradient(
      90deg,
      transparent 0%,
      color-mix(in srgb, var(--clr-blue-500) 50%, transparent) 50%,
      transparent 100%
    );
    opacity: 0;
    transition: opacity 0.5s;
  }

  .blog-card:hover .card-footer::before {
    opacity: 1;
  }

  .blog-card .card-read-time,
  .blog-article .card-read-time {
    font-size: var(--type-xs);
    color: color-mix(in srgb, var(--clr-slate-400) 80%, transparent);
    display: flex;
    align-items: center;
    gap: var(--size-r-0-3);
    font-weight: 500;
    text-shadow: 0 0 var(--size-10) color-mix(in srgb, var(--clr-blue-500) 20%, transparent);
  }

  .blog-card .btn-read {
    background: linear-gradient(135deg, var(--clr-blue-500), var(--clr-violet-500));
    color: var(--clr-white);
    border: var(--size-1) solid color-mix(in srgb, var(--clr-white) 10%, transparent);
    font-weight: 600;
    cursor: pointer;
    padding: var(--size-r-0-4) var(--size-r-0-85);
    display: inline-flex;
    align-items: center;
    gap: var(--size-r-0-35);
    transition:
      border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
      box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
      transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: var(--type-xs);
    text-transform: uppercase;
    border-radius: var(--size-12);
    box-shadow:
      0 var(--size-2) var(--size-10) color-mix(in srgb, var(--clr-blue-500) 40%, transparent),
      0 0 var(--size-15) color-mix(in srgb, var(--clr-blue-500) 20%, transparent) inset;
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
  }

  .blog-card .btn-read::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
      135deg,
      color-mix(in srgb, var(--clr-white) 20%, transparent),
      transparent
    );
    opacity: 0;
    transition: opacity 0.3s;
  }

  .blog-card .btn-read:hover {
    transform: translateX(var(--size-3)) translateZ(var(--size-5));
    box-shadow:
      0 var(--size-4) var(--size-15) color-mix(in srgb, var(--clr-blue-500) 60%, transparent),
      0 0 var(--size-25) color-mix(in srgb, var(--clr-violet-500) 40%, transparent) inset;
    border-color: color-mix(in srgb, var(--clr-white) 30%, transparent);
  }

  .blog-card .btn-read:hover::before {
    opacity: 1;
  }

  /* ===================================
   ARTICLE DETAIL VIEW
   =================================== */

  .blog-article {
    max-width: var(--size-820);
    margin: var(--size-r-2) auto var(--size-r-4);
    background: color-mix(in srgb, var(--blog-rgb-10-10-30) 40%, transparent);
    backdrop-filter: blur(var(--size-20));
    -webkit-backdrop-filter: blur(var(--size-20));
    border-radius: var(--size-32);
    padding: var(--size-r-3);
    border: var(--size-1) solid color-mix(in srgb, var(--clr-blue-500) 10%, transparent);
    box-shadow: 0 var(--size-40) var(--size-100)
      color-mix(in srgb, var(--clr-black) 60%, transparent);
    position: relative;
  }

  .article-hero {
    margin: 0 0 var(--size-r-3) 0;
    border-radius: var(--size-24);
    overflow: hidden;
    box-shadow: 0 var(--size-25) var(--size-60)
      color-mix(in srgb, var(--clr-black) 70%, transparent);
    border: var(--size-1) solid color-mix(in srgb, var(--clr-blue-500) 30%, transparent);
  }

  .article-hero .progressive-image-wrapper {
    margin-bottom: 0;
    border-radius: var(--size-24);
  }

  .article-hero-img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 21 / 9;
    object-fit: cover;
  }

  .blog-article header h1 {
    font-size: var(--type-4xl);
    line-height: var(--leading-tight);
    margin-bottom: var(--size-r-1-5);
    color: var(--clr-white);
    font-weight: 800;
    text-shadow: 0 var(--size-4) var(--size-20)
      color-mix(in srgb, var(--clr-blue-500) 30%, transparent);
  }

  .blog-article .meta {
    color: color-mix(in srgb, var(--clr-slate-400) 90%, transparent);
    margin-bottom: var(--size-r-2-5);
    font-size: var(--type-lg);
    border-bottom: var(--size-1) solid color-mix(in srgb, var(--clr-blue-500) 20%, transparent);
    padding-bottom: var(--size-r-1-5);
    display: flex;
    gap: var(--size-r-1);
    align-items: center;
  }

  .article-actions {
    margin-top: 1rem;
  }

  .blog-post-excerpt {
    font-size: var(--type-lg);
    color: rgba(226, 232, 240, 0.9);
    margin-bottom: 2rem;
  }

  /* ===================================
   ARTICLE BODY TYPOGRAPHY
   =================================== */

  .article-body {
    color: color-mix(in srgb, var(--clr-slate-200) 95%, transparent);
    font-size: var(--type-lg);
    line-height: var(--leading-relaxed);
    font-weight: 400;
  }

  .article-body h2 {
    font-size: var(--type-2xl);
    margin: var(--size-r-4) 0 var(--size-r-1-5) 0;
    color: var(--clr-white);
    font-weight: 800;
    text-shadow: 0 var(--size-2) var(--size-15)
      color-mix(in srgb, var(--clr-blue-500) 30%, transparent);
  }

  .article-body h3 {
    font-size: var(--type-xl);
    margin: var(--size-r-3) 0 var(--size-r-1) 0;
    color: var(--clr-white);
    font-weight: 700;
  }

  .article-body p {
    margin-bottom: var(--size-r-2);
  }

  .article-body a {
    color: var(--clr-blue-500);
    text-decoration: none;
    background-image: linear-gradient(var(--clr-blue-500), var(--clr-blue-500));
    background-position: 0% 100%;
    background-repeat: no-repeat;
    background-size: 0% var(--size-2);
    transition:
      background-size 0.3s,
      color 0.2s;
    padding-bottom: var(--size-2);
  }

  .article-body a:hover {
    background-size: 100% var(--size-2);
    color: var(--clr-blue-300);
  }

  .article-body ul,
  .article-body ol {
    margin-bottom: var(--size-r-2);
    padding-left: var(--size-r-2);
    color: color-mix(in srgb, var(--clr-slate-200) 90%, transparent);
  }

  .article-body li {
    margin-bottom: var(--size-r-1);
    padding-left: var(--size-r-0-5);
  }

  /* ===================================
   CODE BLOCKS
   =================================== */

  .article-body code {
    background: color-mix(in srgb, var(--clr-blue-500) 15%, transparent);
    padding: 0.3em 0.6em;
    border-radius: var(--size-6);
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--clr-blue-300);
    border: var(--size-1) solid color-mix(in srgb, var(--clr-blue-500) 30%, transparent);
  }

  .article-body pre {
    background: color-mix(in srgb, var(--blog-rgb-10-10-20) 90%, transparent);
    border: var(--size-1) solid color-mix(in srgb, var(--clr-blue-500) 30%, transparent);
    border-radius: var(--size-16);
    padding: var(--size-r-2);
    margin: var(--size-r-3) 0;
    overflow-x: auto;
    box-shadow: 0 var(--size-15) var(--size-40)
      color-mix(in srgb, var(--clr-black) 60%, transparent);
  }

  .article-body pre code {
    background: transparent;
    padding: 0;
    color: var(--clr-gray-250);
    font-size: 0.95em;
    line-height: var(--leading-relaxed);
    border: none;
  }

  /* ===================================
   BUTTONS & INTERACTIONS
   =================================== */

  body.blog-page .btn-back {
    position: fixed;
    top: calc(var(--content-top-offset) + var(--size-r-1));
    left: calc(var(--safe-left) + var(--size-r-2));
    z-index: var(--z-fixed);
    background: color-mix(in srgb, var(--clr-black) 80%, transparent);
    backdrop-filter: blur(var(--size-20));
    -webkit-backdrop-filter: blur(var(--size-20));
    color: color-mix(in srgb, var(--clr-white) 90%, transparent);
    border: var(--size-2) solid color-mix(in srgb, var(--clr-blue-500) 30%, transparent);
    padding: var(--size-r-0-75) var(--size-r-1-5);
    cursor: pointer;
    border-radius: var(--size-50);
    transition:
      background-color 0.3s,
      border-color 0.3s,
      box-shadow 0.3s,
      transform 0.3s;
    font-size: var(--type-body);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--size-r-0-5);
    box-shadow:
      0 var(--size-4) var(--size-12) color-mix(in srgb, var(--clr-black) 50%, transparent),
      0 0 0 var(--size-1) color-mix(in srgb, var(--clr-blue-500) 20%, transparent) inset;
  }

  .btn-back__icon {
    transform: rotate(180deg);
  }

  body.blog-page .btn-back:hover {
    background: color-mix(in srgb, var(--clr-blue-500) 20%, transparent);
    border-color: color-mix(in srgb, var(--clr-blue-500) 60%, transparent);
    transform: translateX(calc(var(--size-5) * -1));
    box-shadow:
      0 var(--size-6) var(--size-16) color-mix(in srgb, var(--clr-blue-500) 40%, transparent),
      0 0 0 var(--size-1) color-mix(in srgb, var(--clr-blue-500) 40%, transparent) inset;
  }

  @media (max-width: 900px) {
    body.blog-page .btn-back {
      top: calc(var(--content-top-offset) + var(--size-r-0-5));
      left: calc(var(--safe-left) + var(--size-r-1));
      padding: var(--size-r-0-6) var(--size-r-1-2);
      font-size: var(--type-sm);
    }
  }

  @media (max-width: 640px) {
    body.blog-page .btn-back {
      left: calc(var(--safe-left) + var(--size-r-0-5));
      padding: var(--size-r-0-5) var(--size-r-1);
      font-size: var(--type-sm);
    }
  }

  /* ===================================
   SCROLL TO TOP BUTTON - ENHANCED
   =================================== */

  .scroll-to-top-btn {
    position: fixed;
    bottom: calc(var(--content-bottom-offset) + var(--size-r-2));
    right: calc(var(--safe-right) + var(--size-r-2));
    background: linear-gradient(135deg, var(--clr-blue-500), var(--clr-violet-500));
    color: var(--clr-white);
    border: var(--size-2) solid color-mix(in srgb, var(--clr-white) 10%, transparent);
    border-radius: 50%;
    width: var(--size-r-4);
    height: var(--size-r-4);
    cursor: pointer;
    box-shadow:
      0 var(--size-8) var(--size-30) color-mix(in srgb, var(--clr-blue-500) 50%, transparent),
      0 0 var(--size-60) color-mix(in srgb, var(--clr-violet-500) 30%, transparent),
      0 0 0 var(--size-4) color-mix(in srgb, var(--clr-blue-500) 10%, transparent) inset;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-floating);
    transition:
      border-color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
      box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1),
      opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1),
      transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(var(--size-20)) scale(0.8) rotateZ(0deg);
    pointer-events: none;
    transform-style: preserve-3d;
  }

  .article-footer {
    margin-top: 4rem;
  }

  .scroll-to-top-btn::before {
    content: "";
    position: absolute;
    inset: calc(var(--size-4) * -1);
    border-radius: 50%;
    background: linear-gradient(135deg, var(--clr-blue-500), var(--clr-violet-500));
    opacity: 0;
    filter: blur(var(--size-10));
    transition: opacity 0.4s;
  }

  .scroll-to-top-btn.visible {
    opacity: 1;
    transform: translateY(0) scale(1) rotateZ(0deg);
    pointer-events: auto;
  }

  .scroll-to-top-btn:hover {
    transform: translateY(calc(var(--size-5) * -1)) scale(1.1) rotateZ(180deg);
    box-shadow:
      0 var(--size-12) var(--size-40) color-mix(in srgb, var(--clr-blue-500) 70%, transparent),
      0 0 var(--size-80) color-mix(in srgb, var(--clr-violet-500) 50%, transparent),
      0 0 0 var(--size-6) color-mix(in srgb, var(--clr-blue-500) 20%, transparent) inset;
    border-color: color-mix(in srgb, var(--clr-white) 30%, transparent);
  }

  .scroll-to-top-btn:hover::before {
    opacity: 1;
  }

  @media (max-width: 900px) {
    .scroll-to-top-btn {
      bottom: calc(var(--content-bottom-offset) + var(--size-r-1-5));
      right: calc(var(--safe-right) + var(--size-r-1-5));
      width: var(--size-r-3-5);
      height: var(--size-r-3-5);
    }
  }

  @media (max-width: 640px) {
    .scroll-to-top-btn {
      bottom: calc(var(--content-bottom-offset) + var(--size-r-1));
      right: calc(var(--safe-right) + var(--size-r-1));
      width: var(--size-r-3);
      height: var(--size-r-3);
    }
  }

  /* ===================================
   RESPONSIVE DESIGN
   =================================== */

  @media (max-width: 768px) {
    .blog-article {
      padding: var(--size-r-2);
    }
  }

  /* ===================================
   PRINT STYLES
   =================================== */

  @media print {
    .scroll-to-top-btn,
    .blog-3d-background,
    body.blog-page .btn-back {
      display: none !important;
    }

    body.blog-page {
      background: var(--clr-white) !important;
      color: var(--clr-black) !important;
    }

    .blog-article {
      background: var(--clr-white);
      border: none;
      box-shadow: none;
    }
  }
  /* Mobile adjustments for header height */
  @media (width <= 900px) {
    body.blog-page #main-content {
      min-height: var(--section-viewport-height);
    }
  }
}