/* ==========================================================================
   Blog & Article Stylesheet - Yehezkiel David Setiawan Portfolio
   Design Tokens & System consistent with Space Grotesk, Inter, JetBrains Mono
   ========================================================================== */

/* Reading Progress Bar */
#reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #10b981, #34d399, #06b6d4);
  width: 0%;
  z-index: 9999;
  transition: width 0.1s ease-out;
}

/* Base Body Styling */
.blog-body-bg {
  background-color: #212529 !important;
  color: #cbd5e1;
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
}

/* Sticky Table of Contents (TOC) Sidebar */
.toc-sidebar {
  position: sticky;
  top: 100px;
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 20px;
  backdrop-filter: blur(10px);
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.toc-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.toc-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
  font-size: 0.88rem;
  position: relative;
  border-left: 2px solid rgba(255, 255, 255, 0.1);
}

.toc-item {
  margin-bottom: 10px;
}

.toc-link {
  display: block;
  padding: 4px 0 4px 14px;
  color: #94a3b8;
  text-decoration: none;
  transition: all 0.2s ease;
  line-height: 1.4;
  border-left: 2px solid transparent;
  margin-left: -2px;
}

.toc-link:hover {
  color: #ffffff;
  border-left-color: #34d399;
}

.toc-link.active {
  color: #34d399 !important;
  font-weight: 600;
  border-left-color: #10b981;
}

/* Mobile Quick TOC */
.mobile-toc-drawer {
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 2rem;
}

/* Interactive Architecture Diagram */
.arch-diagram-card {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.8) 0%, rgba(30, 41, 59, 0.6) 100%);
  border: 1px solid rgba(52, 211, 153, 0.25);
  border-radius: 16px;
  padding: 24px;
  margin: 2.5rem 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.arch-node-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  position: relative;
  align-items: center;
}

.arch-node {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 14px 10px;
  text-align: center;
  transition: all 0.25s ease;
  cursor: pointer;
  position: relative;
}

.arch-node:hover, .arch-node.active {
  background: rgba(16, 185, 129, 0.15);
  border-color: #34d399;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.25);
}

.arch-node-icon {
  font-size: 1.4rem;
  margin-bottom: 6px;
  color: #34d399;
}

.arch-node-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 2px;
  line-height: 1.2;
}

.arch-node-badge {
  font-size: 0.68rem;
  font-family: 'JetBrains Mono', monospace;
  color: #94a3b8;
}

.arch-detail-box {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 16px;
  margin-top: 16px;
  font-size: 0.92rem;
  line-height: 1.6;
  color: #cbd5e1;
}

/* Interactive Carbon & Token Savings Calculator Widget */
.calc-card {
  background: radial-gradient(circle at 50% 0%, rgba(16, 185, 129, 0.12) 0%, rgba(15, 23, 42, 0.85) 75%);
  border: 1px solid rgba(52, 211, 153, 0.35);
  border-radius: 18px;
  padding: 28px;
  margin: 3rem 0;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4);
}

.calc-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.calc-slider-group {
  margin-bottom: 20px;
}

.calc-slider-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: #cbd5e1;
  margin-bottom: 8px;
}

.calc-slider-val {
  font-family: 'JetBrains Mono', monospace;
  color: #34d399;
  font-weight: 700;
}

.calc-range {
  width: 100%;
  accent-color: #10b981;
  cursor: pointer;
}

.calc-metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.calc-metric-card {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 14px;
  text-align: center;
}

.calc-metric-val {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.65rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 4px;
}

.calc-metric-lbl {
  font-size: 0.78rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

/* Styled Code Blocks with Copy Button */
.code-block-wrapper {
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  overflow: hidden;
  margin: 1.8rem 0;
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background: rgba(0, 0, 0, 0.4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.8rem;
  color: #94a3b8;
  font-family: 'JetBrains Mono', monospace;
}

.btn-copy-code {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #cbd5e1;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-copy-code:hover {
  background: #10b981;
  color: #ffffff;
  border-color: #10b981;
}

.code-content {
  padding: 16px;
  margin: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.88rem;
  line-height: 1.6;
  color: #e2e8f0;
  overflow-x: auto;
}

/* Lightbox Modal */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(8px);
}

.lightbox-overlay.active {
  display: flex;
}

.lightbox-img {
  max-width: 95vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.8);
  transition: transform 0.25s ease;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 25px;
  font-size: 2rem;
  color: #ffffff;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.1);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.2s ease;
}

.lightbox-close:hover {
  background: #ef4444;
  color: #ffffff;
}

.zoom-badge {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.7);
  color: #ffffff;
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  pointer-events: none;
}

/* Citation / BibTeX Widget */
.citation-box {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 22px;
  margin: 3rem 0;
}

.citation-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.citation-pre {
  background: #020617;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: #94a3b8;
  overflow-x: auto;
  white-space: pre;
}

/* Blog Directory Hub Styles (blog.html) */
.blog-hub-hero {
  background: radial-gradient(circle at 50% 15%, #0f2a43 0%, #1e293b 60%, #212529 100%);
  padding: 70px 0 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.blog-tag-pill {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.06);
  color: #cbd5e1;
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: all 0.2s ease;
  cursor: pointer;
}

.blog-tag-pill:hover, .blog-tag-pill.active {
  background: #10b981;
  color: #ffffff;
  border-color: #10b981;
}

.blog-card {
  background: #1e293b;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.25s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: #34d399;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.blog-card-img-wrap {
  height: 220px;
  overflow: hidden;
  position: relative;
  background: #0f172a;
}

.blog-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.blog-card:hover .blog-card-img-wrap img {
  transform: scale(1.05);
}

.blog-card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

/* Impact Metrics Grid for Homepage */
.hero-impact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 20px 0;
}

.hero-impact-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 12px 14px;
  text-align: left;
  transition: all 0.2s ease;
}

.hero-impact-card:hover {
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(52, 211, 153, 0.4);
  transform: translateY(-2px);
}

.hero-impact-val {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 2px;
}

.hero-impact-lbl {
  font-size: 0.75rem;
  color: #94a3b8;
  line-height: 1.3;
}

/* ==========================================================================
   Medium-Style Editorial Experience (with Cyber-Dark Tech Aesthetics)
   ========================================================================== */

/* Article Header & Typography */
.article-header-wrapper {
  background: radial-gradient(circle at 50% 10%, #0f2a43 0%, #1e293b 60%, #212529 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 55px 0 35px;
}

.article-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #34d399;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.3);
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 1rem;
}

.article-main-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.22;
  letter-spacing: -0.5px;
  margin-bottom: 1rem;
  text-wrap: balance;
}

.article-lead-subtitle {
  font-size: 1.18rem;
  line-height: 1.65;
  color: #94a3b8;
  margin-bottom: 1.8rem;
  font-weight: 400;
}

/* Author Row */
.article-author-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.article-author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 2px solid #34d399;
  box-shadow: 0 0 12px rgba(52, 211, 153, 0.25);
  object-fit: cover;
}

.article-author-name {
  font-weight: 700;
  color: #ffffff;
  font-size: 1.05rem;
  margin-bottom: 2px;
}

.article-author-subline {
  color: #94a3b8;
  font-size: 0.86rem;
}

/* High Contrast Header Action Pills */
.article-action-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.86rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
}

.pill-calculator {
  background: rgba(16, 185, 129, 0.15) !important;
  border: 1px solid #10b981 !important;
  color: #34d399 !important;
}

.pill-calculator:hover {
  background: #10b981 !important;
  color: #ffffff !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3);
}

.pill-citation {
  background: rgba(56, 189, 248, 0.15) !important;
  border: 1px solid #38bdf8 !important;
  color: #38bdf8 !important;
}

.pill-citation:hover {
  background: #38bdf8 !important;
  color: #0f172a !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.3);
}

/* Article Reading Typography */
.blog-post-content {
  font-size: 1.12rem;
  line-height: 1.85;
  color: #cbd5e1;
}

.blog-post-content p {
  margin-bottom: 1.7rem;
}

.blog-post-content h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: #ffffff;
  margin-top: 2.8rem;
  margin-bottom: 1.2rem;
  font-size: 1.75rem;
  letter-spacing: -0.3px;
}

.blog-post-content h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  color: #e2e8f0;
  margin-top: 2.2rem;
  margin-bottom: 1rem;
  font-size: 1.35rem;
}

/* Medium Pullquotes */
.medium-pullquote {
  position: relative;
  margin: 2.5rem 0;
  padding: 24px 28px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(15, 23, 42, 0.6) 100%);
  border-left: 4px solid #10b981;
  border-radius: 0 14px 14px 0;
  font-style: italic;
  font-size: 1.22rem;
  line-height: 1.75;
  color: #f1f5f9;
}

.medium-pullquote i.quote-icon {
  font-size: 1.6rem;
  color: #34d399;
  opacity: 0.7;
  margin-bottom: 8px;
  display: block;
}

/* Medium Action Bar (Top & Sticky) */
.medium-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  margin: 1.5rem 0 2rem;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  flex-wrap: wrap;
  gap: 12px;
}

.medium-action-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.medium-btn-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: none;
  color: #cbd5e1;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
  position: relative;
}

.medium-btn-action:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
}

.medium-btn-action.active {
  color: #34d399 !important;
}

.medium-btn-action .clap-icon {
  font-size: 1.2rem;
  transition: transform 0.15s ease;
}

.medium-btn-action:active .clap-icon {
  transform: scale(1.35) rotate(-10deg);
}

/* Floating Action Pill Bar (Sticky Bottom on Scroll) */
.medium-floating-bar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid rgba(52, 211, 153, 0.4);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.5), 0 0 15px rgba(16, 185, 129, 0.2);
  backdrop-filter: blur(14px);
  padding: 8px 18px;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 999;
  transition: transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
  opacity: 0;
  pointer-events: none;
}

.medium-floating-bar.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.floating-divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, 0.15);
}

/* Clap Floating Bubble Animation */
.clap-bubble {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #10b981;
  color: #ffffff;
  font-weight: 700;
  font-size: 0.78rem;
  padding: 2px 8px;
  border-radius: 12px;
  pointer-events: none;
  animation: floatUpFade 0.85s ease-out forwards;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

@keyframes floatUpFade {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(0.8);
  }
  50% {
    transform: translateX(-50%) translateY(-24px) scale(1.1);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(-44px) scale(0.9);
  }
}

/* Medium Author Bio Box at bottom */
.medium-author-card {
  background: #161b22;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 16px;
  padding: 26px 28px;
  margin: 3.5rem 0 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.medium-author-avatar {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  border: 2px solid #10b981;
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.2);
  object-fit: cover;
}

.author-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 18px;
  margin-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: transparent !important;
  background-color: transparent !important;
}

.author-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255, 255, 255, 0.06);
  color: #f1f5f9 !important;
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 7px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none !important;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.author-pill-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff !important;
  border-color: rgba(255, 255, 255, 0.28);
  transform: translateY(-1px);
}

.author-pill-btn.primary {
  background: #10b981;
  color: #ffffff !important;
  border-color: #10b981;
  font-weight: 600;
}

.author-pill-btn.primary:hover {
  background: #059669;
  border-color: #059669;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.author-clap-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  color: #34d399 !important;
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 7px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.author-clap-btn:hover {
  background: rgba(16, 185, 129, 0.2);
  border-color: #10b981;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.25);
}

/* Recommended Stories (More from Yehezkiel David) */
.medium-recommended-section {
  margin: 4rem 0 2rem;
  padding-top: 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.recommended-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Toast Notification */
.medium-toast {
  position: fixed;
  bottom: 85px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #0f172a;
  color: #ffffff;
  border: 1px solid #34d399;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
  padding: 10px 22px;
  border-radius: 50px;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 10001;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
}

.medium-toast.active {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}