/* ==========================================================================
   ClearBillReview — Blog Article Stylesheet
   blog-article.css
   
   Single editorial CSS file for all blog posts on clearbillreview.com/blog/
   Design model: A List Apart restraint. Single column, centered, typographic.
   
   Brand Palette:
     --cbr-teal:     #1a7a6d   (primary accent)
     --cbr-navy:     #1a2e3b   (headings, deep backgrounds)
     --cbr-white:    #f7f9f8   (page background)
     --cbr-text:     #1c1c1e   (body text)
     --cbr-gray:     #6b7280   (metadata, captions)
     --cbr-amber:    #d97706   (alerts, highlights — use sparingly)
   
   Fonts:
     Lora           — body serif (article prose)
     DM Sans        — headings, UI, nav, metadata
     Source Sans 3   — utility, callout boxes, tags
   ========================================================================== */


/* ---------- CSS Custom Properties ---------- */

:root {
  --cbr-teal: #1a7a6d;
  --cbr-teal-light: #e8f4f2;
  --cbr-teal-hover: #15665b;
  --cbr-navy: #1a2e3b;
  --cbr-white: #f7f9f8;
  --cbr-text: #1c1c1e;
  --cbr-gray: #6b7280;
  --cbr-amber: #d97706;
  --cbr-border: #e2e5e4;
  --cbr-card-bg: #ffffff;
}


/* ---------- Article Container ---------- */

.article-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}


/* ---------- Article Header ---------- */

.article-header {
  margin-bottom: 2.5rem;
}

.article-category {
  display: inline-block;
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cbr-teal);
  margin-bottom: 1rem;
}

.article-header h1 {
  font-family: 'DM Sans', sans-serif;
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--cbr-navy);
  margin: 0 0 1rem;
}

.article-byline {
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.9375rem;
  color: var(--cbr-gray);
  line-height: 1.5;
}

.article-byline .byline-author {
  color: var(--cbr-text);
  font-weight: 600;
}

.article-byline .byline-separator {
  margin: 0 0.35em;
}


/* ---------- Body Typography ---------- */

.article-body {
  font-family: 'Lora', Georgia, serif;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--cbr-text);
}

.article-body p {
  margin: 0 0 1.5rem;
}

.article-body strong {
  font-weight: 700;
}

.article-body a {
  color: var(--cbr-teal);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color 0.15s ease;
}

.article-body a:hover {
  color: var(--cbr-teal-hover);
}


/* ---------- Headings ---------- */

.article-body h2 {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cbr-navy);
  margin: 3rem 0 1.25rem;
  padding-top: 2rem;
  border-top: 1px solid var(--cbr-border);
  line-height: 1.3;
}

.article-body h2:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.article-body h3 {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.1875rem;
  font-weight: 600;
  color: var(--cbr-navy);
  margin: 2.25rem 0 0.75rem;
  line-height: 1.35;
}


/* ---------- Key Takeaways Box ---------- */

.key-takeaways {
  background: var(--cbr-teal-light);
  border-left: 4px solid var(--cbr-teal);
  border-radius: 0 4px 4px 0;
  padding: 1.5rem 1.5rem 1rem;
  margin-bottom: 2.5rem;
}

.key-takeaways-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cbr-teal);
  margin: 0 0 0.75rem;
}

.key-takeaways ul {
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--cbr-text);
  margin: 0;
  padding-left: 1.25rem;
}

.key-takeaways li {
  margin-bottom: 0.5rem;
}

.key-takeaways li:last-child {
  margin-bottom: 0;
}


/* ---------- Callout Box ("What to look for") ---------- */

.callout-box {
  background: var(--cbr-white);
  border: 1px solid var(--cbr-border);
  border-radius: 4px;
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0 2rem;
}

.callout-box-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cbr-gray);
  margin: 0 0 0.75rem;
}

.callout-box ul {
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--cbr-text);
  margin: 0;
  padding-left: 1.25rem;
  list-style-type: none;
}

.callout-box li {
  margin-bottom: 0.35rem;
  position: relative;
  padding-left: 0.25rem;
}

.callout-box li::before {
  content: "›";
  position: absolute;
  left: -1.1rem;
  color: var(--cbr-teal);
  font-weight: 700;
}


/* ---------- Quick Check Box ---------- */

.quick-check {
  background: var(--cbr-card-bg);
  border: 2px solid var(--cbr-teal);
  border-radius: 4px;
  padding: 1.5rem;
  margin: 1.75rem 0 2rem;
}

.quick-check-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--cbr-navy);
  margin: 0 0 1rem;
}

.quick-check ul {
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--cbr-text);
  margin: 0;
  padding-left: 0;
  list-style-type: none;
}

.quick-check li {
  margin-bottom: 0.25rem;
  padding-left: 1.75rem;
  position: relative;
}

.quick-check li::before {
  content: "☐";
  position: absolute;
  left: 0;
  color: var(--cbr-teal);
}


/* ---------- Pull Quote (Blockquote) ---------- */

.article-body blockquote,
.pull-quote {
  border-left: 4px solid var(--cbr-navy);
  margin: 2.25rem 0;
  padding: 0.75rem 0 0.75rem 1.5rem;
  font-family: 'Lora', Georgia, serif;
  font-size: 1.1875rem;
  font-style: italic;
  line-height: 1.7;
  color: var(--cbr-navy);
}

.article-body blockquote p,
.pull-quote p {
  margin: 0;
}


/* ---------- Inline CTA Block ---------- */

.inline-cta {
  background: var(--cbr-navy);
  border-radius: 6px;
  padding: 2rem;
  margin: 2.5rem 0;
  text-align: center;
}

.inline-cta-heading {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 0.5rem;
}

.inline-cta-text {
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.8);
  margin: 0 0 1.25rem;
  line-height: 1.6;
}

.inline-cta-button {
  display: inline-block;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--cbr-navy);
  background: #ffffff;
  padding: 0.75rem 1.75rem;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.1s ease;
}

.inline-cta-button:hover {
  background: var(--cbr-teal-light);
  transform: translateY(-1px);
}


/* ---------- Related Articles ---------- */

.related-articles {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--cbr-border);
}

.related-articles-heading {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--cbr-navy);
  margin: 0 0 1.25rem;
}

.related-articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.related-card {
  display: block;
  background: var(--cbr-card-bg);
  border: 1px solid var(--cbr-border);
  border-radius: 4px;
  padding: 1.25rem;
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.related-card:hover {
  border-color: var(--cbr-teal);
  box-shadow: 0 2px 8px rgba(26, 122, 109, 0.1);
}

.related-card-title {
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--cbr-navy);
  margin: 0 0 0.35rem;
  line-height: 1.35;
}

.related-card-desc {
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.875rem;
  color: var(--cbr-gray);
  margin: 0;
  line-height: 1.5;
}


/* ---------- Author Bio Block ---------- */

.author-bio {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--cbr-border);
}

.author-bio-photo {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.author-bio-name {
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--cbr-navy);
  margin: 0 0 0.25rem;
}

.author-bio-role {
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.8125rem;
  color: var(--cbr-gray);
  margin: 0 0 0.5rem;
}

.author-bio-text {
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.9375rem;
  color: var(--cbr-text);
  line-height: 1.6;
  margin: 0;
}


/* ---------- Video Cards ---------- */

.video-section {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--cbr-border);
}

.video-section-heading {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--cbr-navy);
  margin: 0 0 1.25rem;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.video-card {
  display: block;
  text-decoration: none;
  transition: transform 0.15s ease;
}

.video-card:hover {
  transform: translateY(-2px);
}

.video-card-thumb {
  position: relative;
  width: 100%;
  padding-top: 100%; /* square crop */
  background: var(--cbr-navy);
  border-radius: 4px;
  overflow: hidden;
}

.video-card-thumb img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-card-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background: rgba(0, 0, 0, 0.55);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: background 0.15s ease;
}

.video-card:hover .video-card-play {
  background: rgba(26, 122, 109, 0.85);
}

.video-card-play::after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 7px 0 7px 13px;
  border-color: transparent transparent transparent #ffffff;
  margin-left: 2px;
}

.video-card-duration {
  position: absolute;
  bottom: 6px;
  right: 6px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.6875rem;
  font-weight: 600;
  color: #ffffff;
  background: rgba(0, 0, 0, 0.7);
  padding: 2px 6px;
  border-radius: 2px;
  z-index: 2;
}

.video-card-title {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--cbr-navy);
  margin: 0.5rem 0 0;
  line-height: 1.35;
}

.video-card-meta {
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.75rem;
  color: var(--cbr-gray);
  margin-top: 0.15rem;
}

.video-more-link {
  display: inline-block;
  margin-top: 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--cbr-teal);
  text-decoration: none;
}

.video-more-link:hover {
  text-decoration: underline;
}


/* ---------- Blog Index Cards ---------- */

.blog-index-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.blog-index-card {
  display: block;
  text-decoration: none;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--cbr-border);
  transition: background 0.15s ease;
}

.blog-index-card:first-child {
  padding-top: 0;
}

.blog-index-card:hover {
  background: var(--cbr-teal-light);
  margin-left: -0.75rem;
  margin-right: -0.75rem;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
  border-radius: 4px;
}

.blog-index-tag {
  display: inline-block;
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cbr-teal);
  margin-bottom: 0.35rem;
}

.blog-index-title {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--cbr-navy);
  line-height: 1.3;
  margin: 0 0 0.35rem;
}

.blog-index-excerpt {
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.9375rem;
  color: var(--cbr-text);
  line-height: 1.5;
  margin: 0 0 0.35rem;
}

.blog-index-date {
  font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  font-size: 0.8125rem;
  color: var(--cbr-gray);
}


/* ---------- Mobile Sticky CTA ---------- */

.sticky-cta {
  display: none;
}


/* ---------- Ordered Lists (Numbered Sections) ---------- */

.article-body ol {
  font-family: 'Lora', Georgia, serif;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--cbr-text);
  padding-left: 1.5rem;
  margin: 0 0 1.5rem;
}

.article-body ol li {
  margin-bottom: 0.75rem;
}

.article-body ul {
  font-family: 'Lora', Georgia, serif;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--cbr-text);
  padding-left: 1.5rem;
  margin: 0 0 1.5rem;
}

.article-body ul li {
  margin-bottom: 0.5rem;
}


/* ---------- Horizontal Rule ---------- */

.article-body hr {
  border: none;
  border-top: 1px solid var(--cbr-border);
  margin: 2.5rem 0;
}


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

@media (min-width: 768px) {
  .article-header h1 {
    font-size: 2.625rem;
  }

  .related-articles-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 767px) {

  .article-container {
    padding: 1.5rem 1rem 6rem; /* extra bottom for sticky CTA */
  }

  .article-header h1 {
    font-size: 1.75rem;
  }

  .article-body {
    font-size: 1rem;
  }

  .article-body h2 {
    font-size: 1.3125rem;
    margin-top: 2.25rem;
    padding-top: 1.5rem;
  }

  .article-body h3 {
    font-size: 1.0625rem;
  }

  .article-body blockquote,
  .pull-quote {
    font-size: 1.0625rem;
    padding-left: 1rem;
    margin: 1.75rem 0;
  }

  .inline-cta {
    padding: 1.5rem;
    margin: 2rem 0;
  }

  .video-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .author-bio {
    flex-direction: column;
    gap: 0.75rem;
  }

  .key-takeaways,
  .callout-box,
  .quick-check {
    padding: 1.25rem;
  }

  /* Mobile sticky CTA */
  .sticky-cta {
    display: block;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 900;
    background: var(--cbr-card-bg);
    border-top: 1px solid var(--cbr-border);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.08);
    padding: 0.75rem 1rem;
    text-align: center;
  }

  .sticky-cta-button {
    display: block;
    width: 100%;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9375rem;
    font-weight: 600;
    color: #ffffff;
    background: var(--cbr-teal);
    border: none;
    border-radius: 4px;
    padding: 0.8rem;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.15s ease;
  }

  .sticky-cta-button:hover,
  .sticky-cta-button:active {
    background: var(--cbr-teal-hover);
  }
}

@media (max-width: 480px) {
  .video-grid {
    grid-template-columns: 1fr;
  }
}