/**
 * Single Blog Content Block Styles
 * Designed as per Metamint design system
 */

.mm-single-article {
  width: 100%;
}

/* ==========================================================================
   SECTION 1: Header (Categories, Title, Excerpt, Meta)
   ========================================================================== */

.mm-single-header {
  padding: 0 !important;
  text-align: center;
}

.mm-single-header-inner {
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Category Pills */
.mm-single-categories {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 18px;
}

.mm-single-categories ul.post-categories {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.mm-single-categories ul.post-categories li {
  margin: 0;
  padding: 0;
}

.mm-single-categories ul.post-categories li a {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 14px;
  font-family: var(--mm-mono, "IBM Plex Mono", monospace);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  background: rgba(15, 113, 115, 0.1);
  color: var(--mm-teal, #0f7173);
  transition:
    background-color 0.2s ease,
    color 0.2s ease;
}

.mm-single-categories ul.post-categories li a:hover {
  background: var(--mm-teal, #0f7173);
  color: #ffffff;
}

/* Title */
.mm-single-title {
  font-family: var(--mm-head, "Space Grotesk", sans-serif);
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--mm-ink, #18181b);
  margin: 0 0 18px 0;
  text-align: center;
  max-width: 900px;
}

/* Excerpt */
.mm-single-excerpt {
  font-family: var(--mm-body, "Instrument Sans", sans-serif);
  font-size: 1.18rem;
  line-height: 1.65;
  color: var(--mm-muted, #6b7280);
  margin: 0 auto 24px auto;
  text-align: center;
  max-width: 780px;
}

/* Meta */
.mm-single-meta {
  font-family: var(--mm-mono, "IBM Plex Mono", monospace);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--mm-muted, #6b7280);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  padding-bottom: 8px;
}

.mm-meta-author {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--mm-ink, #18181b);
  font-weight: 600;
}

.mm-author-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  overflow: hidden;
  background: rgba(15, 113, 115, 0.08);
  border: 1px solid var(--mm-line, rgba(0, 0, 0, 0.08));
  flex-shrink: 0;
}

.mm-author-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 50%;
}

.mm-author-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--mm-teal, #0f7173);
}

.mm-author-icon svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
}

.mm-meta-dot {
  color: var(--mm-line, #e8e8e4);
}

/* ==========================================================================
   SECTION 2: Featured Thumbnail (max-height: 300px, rounded border)
   ========================================================================== */

.mm-single-thumbnail-section {
  margin-top: 32px;
  margin-bottom: 56px;
}

.mm-single-thumbnail-frame {
  width: 100%;
  height: 300px;
  max-height: 300px;
  border-radius: 18px;
  border: 1px solid var(--mm-line, #e8e8e4);
  overflow: hidden;
  background: var(--mm-wash, #f4f4f2);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

.mm-single-featured-img {
  width: 100%;
  height: 100%;
  max-height: 300px;
  object-fit: cover;
  display: block;
}

.mm-single-thumbnail-fallback {
  width: 100%;
  height: 100%;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--mm-wash, #f4f4f2);
  padding: 32px;
  box-sizing: border-box;
  text-align: center;
}

.mm-single-thumbnail-fallback .mm-thumbnail-logo {
  max-width: 180px;
  max-height: 80px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}

.mm-single-thumbnail-fallback .mm-thumbnail-brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 0 auto;
  text-align: center;
}

.mm-single-thumbnail-fallback .mm-brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.mm-single-thumbnail-fallback .mm-brand-icon svg {
  width: 42px;
  height: 42px;
  display: block;
}

.mm-single-thumbnail-fallback .mm-brand-name {
  font-family: var(--mm-head, "Space Grotesk", sans-serif);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  color: var(--mm-ink, #18181b);
}

.mm-single-thumbnail-fallback .mm-logo-caret {
  color: var(--mm-teal, #0f7173);
}

/* ==========================================================================
   SECTION 3: Main Layout (Left: Table of Contents | Right: Content)
   ========================================================================== */

.mm-single-body-section {
  padding-bottom: 80px;
}

.mm-single-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

.mm-single-layout.no-toc {
  grid-template-columns: minmax(0, 780px);
  justify-content: center;
}

/* Left Column: Table of Contents */
.mm-single-sidebar {
  position: sticky;
  top: 96px;
  z-index: 10;
}

.mm-toc-card {
  background: #ffffff;
  border: 1px solid var(--mm-line, #e8e8e4);
  border-radius: 16px;
  padding: 24px;
  box-sizing: border-box;
}

.mm-toc-eyebrow {
  font-family: var(--mm-mono, "IBM Plex Mono", monospace);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mm-teal, #0f7173);
  margin: 0 0 6px 0;
}

.mm-toc-title {
  font-family: var(--mm-head, "Space Grotesk", sans-serif);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--mm-ink, #18181b);
  margin: 0 0 16px 0;
}

.mm-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mm-toc-item {
  margin: 0;
  padding: 0;
}

.mm-toc-level-3 {
  padding-left: 14px;
}

.mm-toc-link {
  display: block;
  font-family: var(--mm-body, "Instrument Sans", sans-serif);
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--mm-muted, #6b7280);
  text-decoration: none;
  border-left: 2px solid transparent;
  padding-left: 10px;
  transition:
    color 0.15s ease,
    border-color 0.15s ease,
    padding-left 0.15s ease;
}

.mm-toc-link:hover,
.mm-toc-link.is-active {
  color: var(--mm-teal, #0f7173);
  border-left-color: var(--mm-teal, #0f7173);
  padding-left: 12px;
}

/* Right Column: Main Content Typography */
.mm-single-content-column {
  min-width: 0;
}

.mm-single-content {
  font-family: var(--mm-body, "Instrument Sans", sans-serif);
  font-size: 1.1rem;
  line-height: 1.78;
  color: #27272a;
}

.mm-single-content > * + * {
  margin-top: 24px;
}

.mm-single-content p {
  margin: 0 0 24px 0;
}

.mm-single-content h2,
.mm-single-content h3,
.mm-single-content h4 {
  font-family: var(--mm-head, "Space Grotesk", sans-serif);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--mm-ink, #18181b);
  scroll-margin-top: 100px;
}

.mm-single-content h2 {
  font-size: clamp(1.6rem, 2.5vw, 2.1rem);
  line-height: 1.25;
  margin: 48px 0 20px 0;
  padding-top: 16px;
  border-top: 1px solid var(--mm-line, #e8e8e4);
}

.mm-single-content h2:first-child {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}

.mm-single-content h3 {
  font-size: clamp(1.3rem, 2vw, 1.6rem);
  line-height: 1.3;
  margin: 36px 0 16px 0;
}

.mm-single-content h4 {
  font-size: 1.15rem;
  margin: 28px 0 12px 0;
}

.mm-single-content blockquote {
  border-left: 3px solid var(--mm-teal, #0f7173);
  background: var(--mm-wash, #f4f4f2);
  border-radius: 0 14px 14px 0;
  padding: 20px 24px;
  margin: 32px 0;
  font-style: italic;
  color: var(--mm-ink, #18181b);
}

.mm-single-content blockquote p {
  margin: 0;
}

.mm-single-content img {
  max-width: 100%;
  height: auto;
  border-radius: 16px;
  display: block;
  margin: 32px 0;
}

.mm-single-content pre,
.mm-single-content code {
  font-family: var(--mm-mono, "IBM Plex Mono", monospace);
}

.mm-single-content pre {
  background: #18181b;
  color: #fafaf9;
  border-radius: 14px;
  padding: 20px 24px;
  overflow-x: auto;
  font-size: 0.9rem;
  margin: 28px 0;
}

/* ==========================================================================
   SECTION 4: Keep Reading (3 Posts from Same Category)
   ========================================================================== */

.mm-keep-reading-section {
  border-top: 1px solid var(--mm-line, #e8e8e4);
  padding-top: 72px;
  padding-bottom: 96px;
}

.mm-keep-reading-header {
  margin-bottom: 36px;
}

.mm-keep-reading-header .mm-eyebrow {
  margin: 0 0 6px 0;
}

.mm-keep-reading-header .mm-h2 {
  margin: 0;
}

/* Card Styling for Keep Reading items */
.mm-keep-reading-section .blog-card {
  --muted: var(--mm-muted, #6b7280);
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--mm-line, #e8e8e4);
  border-radius: 18px;
  overflow: hidden;
  box-sizing: border-box;
  padding: 0;
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease;
}

.mm-keep-reading-section .blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
  border-color: rgba(15, 113, 115, 0.3);
}

.mm-keep-reading-section .blog-card-thumbnail {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: var(--mm-wash, #f4f4f2);
}

.mm-keep-reading-section .blog-card-thumbnail a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  text-decoration: none;
}

.mm-keep-reading-section .blog-card-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.mm-keep-reading-section .blog-card:hover .blog-card-thumbnail img {
  transform: scale(1.04);
}

/* Fallback for 3-Column Keep Reading Cards */
.mm-keep-reading-section .blog-thumbnail-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  min-height: 220px;
  background: var(--mm-wash, #f4f4f2);
  padding: 24px;
  box-sizing: border-box;
  text-align: center;
}

.mm-keep-reading-section .blog-thumbnail-fallback .mm-thumbnail-logo {
  max-width: 140px;
  max-height: 60px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  margin: 0 auto;
  transition: transform 0.4s ease;
}

.mm-keep-reading-section .blog-thumbnail-fallback .mm-thumbnail-brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 0 auto;
  text-align: center;
  transition: transform 0.4s ease;
}

.mm-keep-reading-section .blog-thumbnail-fallback .mm-brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.mm-keep-reading-section .blog-thumbnail-fallback .mm-brand-icon svg {
  width: 32px;
  height: 32px;
  display: block;
}

.mm-keep-reading-section .blog-thumbnail-fallback .mm-brand-name {
  font-family: var(--mm-head, "Space Grotesk", sans-serif);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--mm-ink, #18181b);
}

.mm-keep-reading-section .blog-thumbnail-fallback .mm-logo-caret {
  color: var(--mm-teal, #0f7173);
}

.mm-keep-reading-section .blog-card:hover .blog-thumbnail-fallback .mm-thumbnail-logo,
.mm-keep-reading-section .blog-card:hover .blog-thumbnail-fallback .mm-thumbnail-brand {
  transform: scale(1.05);
}

.mm-keep-reading-section .blog-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 24px;
  gap: 12px;
  align-items: flex-start;
  box-sizing: border-box;
}

.mm-keep-reading-section .blog-card-tag {
  display: inline-flex;
  margin: 0;
}

.mm-keep-reading-section .blog-card-tag ul.post-categories {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.mm-keep-reading-section .blog-card-tag ul.post-categories li {
  margin: 0;
  padding: 0;
}

.mm-keep-reading-section .blog-card-tag ul.post-categories li a {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 14px;
  font-family: var(--mm-mono, "IBM Plex Mono", monospace);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  background: rgba(15, 113, 115, 0.1);
  color: var(--mm-teal, #0f7173);
  transition:
    background-color 0.2s ease,
    color 0.2s ease;
}

.mm-keep-reading-section .blog-card-tag ul.post-categories li a:hover {
  background: var(--mm-teal, #0f7173);
  color: #ffffff;
}

.mm-keep-reading-section .blog-card-body h3 {
  font-family: var(--mm-head, "Space Grotesk", sans-serif);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
  font-size: 1.25rem;
  color: var(--mm-ink, #18181b);
  margin: 0;
}

.mm-keep-reading-section .blog-card-body h3 a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.mm-keep-reading-section .blog-card-body h3 a:hover {
  color: var(--mm-teal, #0f7173);
}

.mm-keep-reading-section .blog-card-body p {
  font-family: var(--mm-body, "Instrument Sans", sans-serif);
  color: var(--mm-muted, #6b7280);
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 0;
}

.mm-keep-reading-section .blog-card-meta {
  font-family: var(--mm-mono, "IBM Plex Mono", monospace);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--mm-muted, #6b7280);
  margin-top: auto;
  padding-top: 4px;
}

.mm-keep-reading-section .blog-card-body .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 10px 22px;
  font-family: var(--mm-body, "Instrument Sans", sans-serif);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  background: var(--mm-ink, #18181b);
  color: #ffffff;
  transition:
    transform 0.15s ease,
    background-color 0.15s ease,
    box-shadow 0.15s ease;
  margin-top: 4px;
}

.mm-keep-reading-section .blog-card-body .btn:hover {
  background: var(--mm-teal, #0f7173);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(15, 113, 115, 0.25);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .mm-single-header {
    padding-top: 36px;
  }

  .mm-single-thumbnail-section {
    margin-top: 24px;
    margin-bottom: 40px;
  }

  .mm-single-thumbnail-frame {
    height: 240px;
    max-height: 240px;
  }

  .mm-single-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .mm-single-sidebar {
    position: static;
  }

  .mm-keep-reading-section {
    padding-top: 56px;
    padding-bottom: 64px;
  }
}

@media (max-width: 640px) {
  .mm-single-thumbnail-frame {
    height: 200px;
    max-height: 200px;
  }

  .mm-single-content {
    font-size: 1.02rem;
    line-height: 1.7;
  }

  .mm-single-content h2 {
    font-size: 1.55rem;
    margin-top: 36px;
  }

  .mm-keep-reading-section .blog-card-body .btn {
    width: 100%;
    text-align: center;
  }
}