/* ==========================================================================
   TasksToDo — Styles Spécifiques Blog & Articles
   M3 Expressive, Lecture Aérée, TOC Sticky, Barre de Lecture, Composants Riches
   ========================================================================== */

/* ------------------------------ Reading Progress Bar ------------------------------ */
.reading-progress-track {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3.5px;
  background: transparent;
  z-index: 100;
  pointer-events: none;
}

.reading-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--m-p), #4B93FF);
  transition: width 0.08s linear;
}

/* ------------------------------ Blog Home: Hero & Filters ------------------------------ */
.blog-hero {
  padding: 64px 0 36px;
  text-align: center;
}

.blog-hero-eyebrow {
  margin-bottom: 16px;
}

.blog-hero-title {
  font-size: clamp(34px, 5.5vw, 54px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--m-osf);
  margin-bottom: 16px;
}

.blog-hero-title .accent {
  background: linear-gradient(135deg, var(--m-p) 0%, #4B93FF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.blog-hero-subtitle {
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.55;
  color: var(--m-osv);
  max-width: 680px;
  margin: 0 auto 36px;
}

.blog-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  margin-bottom: 48px;
}

/* Search Bar */
.blog-search-wrap {
  position: relative;
  width: 100%;
  max-width: 480px;
}

.blog-search-input {
  width: 100%;
  height: 50px;
  padding: 0 46px 0 46px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--m-outv);
  background: var(--m-scl);
  color: var(--m-osf);
  font-family: inherit;
  font-size: 15px;
  box-shadow: 0 4px 16px var(--m-shadow);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.blog-search-input:focus {
  outline: none;
  border-color: var(--m-p);
  box-shadow: 0 0 0 3px var(--m-pc);
}

.blog-search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--m-out);
  pointer-events: none;
}

.blog-search-clear {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  color: var(--m-out);
  cursor: pointer;
  padding: 4px;
  display: none;
  border-radius: 50%;
}

.blog-search-clear.is-visible {
  display: block;
}

/* Category Filter Pills */
.blog-categories {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.cat-pill {
  border: 1px solid var(--m-outv);
  background: var(--m-scl);
  color: var(--m-osv);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.16s ease;
}

.cat-pill:hover {
  background: var(--m-sc1);
  color: var(--m-osf);
}

.cat-pill.is-active {
  background: var(--m-p);
  color: var(--m-op);
  border-color: var(--m-p);
  box-shadow: 0 4px 14px rgba(15, 105, 248, 0.25);
}

/* ------------------------------ Featured Post Card ------------------------------ */
.featured-card {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  background: var(--m-scl);
  border: 1px solid var(--m-outv);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: 0 16px 40px var(--m-shadow);
  margin-bottom: 56px;
  transition: transform 0.22s var(--ease-expressive), box-shadow 0.22s var(--ease-expressive);
  text-decoration: none;
  color: inherit;
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 50px var(--m-shadow);
}

.featured-image-wrap {
  position: relative;
  background: #141933;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}

.featured-image-wrap img,
.featured-image-wrap svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.featured-card:hover .featured-image-wrap img,
.featured-card:hover .featured-image-wrap svg {
  transform: scale(1.03);
}

.featured-badge-overlay {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 2;
}

.featured-content {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.featured-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.featured-title {
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--m-osf);
  margin-bottom: 14px;
}

.featured-excerpt {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--m-osv);
  margin-bottom: 24px;
}

.featured-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--m-outv);
}

.author-pill {
  display: flex;
  align-items: center;
  gap: 10px;
}

.author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--m-pc);
  color: var(--m-opc);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-name {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--m-osf);
}

.post-date {
  font-size: 12px;
  color: var(--m-out);
}

.read-more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14.5px;
  font-weight: 800;
  color: var(--m-p);
}

@media (max-width: 900px) {
  .featured-card {
    grid-template-columns: 1fr;
  }

  .featured-content {
    padding: 28px;
  }
}

/* ------------------------------ Articles Grid ------------------------------ */
.articles-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.articles-section-title {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--m-osf);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
  margin-bottom: 80px;
}

.article-card {
  background: var(--m-scl);
  border: 1px solid var(--m-outv);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 24px var(--m-shadow);
  transition: transform 0.2s var(--ease-expressive), box-shadow 0.2s var(--ease-expressive);
  text-decoration: none;
  color: inherit;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 38px var(--m-shadow);
}

.article-card-thumb {
  position: relative;
  height: 200px;
  background: #141933;
  overflow: hidden;
}

.article-card-thumb img,
.article-card-thumb svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.article-card:hover .article-card-thumb img,
.article-card:hover .article-card-thumb svg {
  transform: scale(1.04);
}

.article-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 12.5px;
  color: var(--m-osv);
}

.article-card-title {
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--m-osf);
  margin-bottom: 12px;
}

.article-card-excerpt {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--m-osv);
  margin-bottom: 20px;
  flex: 1;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--m-outv);
  font-size: 13px;
  font-weight: 700;
}

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

/* ------------------------------ Article Page Layout ------------------------------ */
.article-page {
  padding-top: 36px;
}

.article-header {
  max-width: 900px;
  margin: 0 auto 36px;
  text-align: center;
}

.article-breadcrumbs {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--m-osv);
  margin-bottom: 20px;
}

.article-breadcrumbs a:hover {
  color: var(--m-p);
}

.article-breadcrumbs-sep {
  color: var(--m-out);
}

.article-h1 {
  font-size: clamp(30px, 4.5vw, 48px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--m-osf);
  margin-bottom: 20px;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.article-hero-cover {
  max-width: 1040px;
  margin: 0 auto 48px;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: 0 20px 48px var(--m-shadow);
  border: 1px solid var(--m-outv);
}

.article-hero-cover img,
.article-hero-cover svg {
  width: 100%;
  height: auto;
  display: block;
}

/* 2-Column Article Grid (TOC Sidebar + Content) */
.article-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: start;
  max-width: var(--container-max);
  margin: 0 auto;
}

/* Sticky Sidebar */
.article-sidebar {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-box {
  background: var(--m-scl);
  border: 1px solid var(--m-outv);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: 0 8px 24px var(--m-shadow);
}

.sidebar-title {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--m-osv);
  margin-bottom: 16px;
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.toc-link {
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--m-osv);
  padding: 6px 12px;
  border-radius: var(--radius-xs);
  border-left: 2px solid transparent;
  transition: all 0.16s ease;
  display: block;
}

.toc-link:hover {
  color: var(--m-p);
  background: var(--m-sclo);
}

.toc-link.is-active {
  color: var(--m-p);
  font-weight: 700;
  border-left-color: var(--m-p);
  background: var(--m-sclo);
}

.share-buttons {
  display: flex;
  align-items: center;
  gap: 10px;
}

@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .article-sidebar {
    position: static;
  }
}

/* ------------------------------ Rich Article Typography & Content ------------------------------ */
.article-content {
  max-width: var(--article-max);
  color: var(--m-osf);
  font-size: 17.5px;
  line-height: 1.8;
}

.article-content p {
  margin-bottom: 24px;
}

.article-content h2 {
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 48px 0 20px;
  color: var(--m-osf);
  scroll-margin-top: 100px;
}

.article-content h3 {
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin: 36px 0 16px;
  color: var(--m-osf);
  scroll-margin-top: 100px;
}

.article-content ul,
.article-content ol {
  margin: 0 0 24px 0;
  padding-left: 24px;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: 10px;
  padding-left: 4px;
}

.article-content strong {
  font-weight: 700;
  color: var(--m-osf);
}

.article-content a {
  color: var(--m-p);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-content a:hover {
  text-decoration-thickness: 2px;
}

.article-content hr {
  border: none;
  height: 1px;
  background: var(--m-outv);
  margin: 44px 0;
}

/* Summary Callout Box (Key Takeaway) */
.summary-box {
  background: var(--m-sc1);
  border: 1px solid var(--m-outv);
  border-left: 5px solid var(--m-p);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin: 32px 0;
  font-size: 16.5px;
  line-height: 1.65;
}

.summary-box-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--m-p);
  margin-bottom: 10px;
}

/* Blockquote & Highlight Callouts */
.callout-quote {
  background: var(--m-sclo);
  border-left: 4px solid var(--m-t);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 32px 0;
  font-style: italic;
  color: var(--m-osf);
}

/* ASCII / Dynamic Gauge Visual Card */
.visual-comparison-card {
  background: var(--m-player-bg);
  color: var(--m-player-fg);
  border-radius: var(--radius-xl);
  padding: 28px;
  margin: 36px 0;
  box-shadow: 0 16px 36px var(--m-shadow);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.vcc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.vcc-title {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #B0C6FF;
}

.vcc-row {
  margin-bottom: 18px;
}

.vcc-row-label {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 8px;
}

.vcc-bar-track {
  width: 100%;
  height: 24px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-pill);
  overflow: hidden;
  position: relative;
}

.vcc-bar-fill-today {
  height: 100%;
  width: 72%;
  background: linear-gradient(90deg, #0F69F8, #4B93FF);
  border-radius: var(--radius-pill);
}

.vcc-bar-fill-shadow {
  height: 100%;
  width: 58%;
  background: linear-gradient(90deg, #009270, #68F8CF);
  border-radius: var(--radius-pill);
  opacity: 0.75;
}

.vcc-status {
  margin-top: 20px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: rgba(0, 146, 112, 0.2);
  border: 1px solid rgba(104, 248, 207, 0.4);
  color: #CFFAEC;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Styled Table */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 36px 0;
  border: 1px solid var(--m-outv);
  border-radius: var(--radius-lg);
  background: var(--m-scl);
}

.m3-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 15px;
}

.m3-table th {
  background: var(--m-sc1);
  color: var(--m-osf);
  font-weight: 800;
  padding: 14px 18px;
  border-bottom: 1px solid var(--m-outv);
}

.m3-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--m-outv);
  vertical-align: top;
  color: var(--m-osv);
}

.m3-table tr:last-child td {
  border-bottom: none;
}

.m3-table code {
  font-family: var(--font-code);
  font-size: 13px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--m-sclo);
  color: var(--m-p);
}

/* Decision / Comparison Flow Graph */
.flow-diagram-card {
  background: var(--m-scl);
  border: 1px solid var(--m-outv);
  border-radius: var(--radius-xl);
  padding: 28px;
  margin: 36px 0;
  box-shadow: 0 10px 28px var(--m-shadow);
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.flow-node {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--m-outv);
  background: var(--m-sclo);
}

.flow-node.highlight {
  border-color: var(--m-p);
  background: var(--m-pc);
  color: var(--m-opc);
}

.flow-node-title {
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 6px;
}

.flow-node-desc {
  font-size: 13px;
  line-height: 1.45;
}

/* FAQ Accordion */
.faq-accordion {
  margin: 36px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--m-scl);
  border: 1px solid var(--m-outv);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s;
}

.faq-item.is-open {
  border-color: var(--m-p);
}

.faq-trigger {
  width: 100%;
  padding: 18px 22px;
  border: none;
  background: transparent;
  color: var(--m-osf);
  font-size: 16.5px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  cursor: pointer;
  text-align: left;
}

.faq-icon {
  flex: 0 0 auto;
  transition: transform 0.2s ease;
  color: var(--m-p);
}

.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s var(--ease-expressive), padding 0.25s ease;
  padding: 0 22px;
  color: var(--m-osv);
  font-size: 15.5px;
  line-height: 1.65;
}

.faq-item.is-open .faq-answer {
  max-height: 300px;
  padding: 0 22px 20px;
}

/* Author Box at End of Article */
.author-card-box {
  background: var(--m-scl);
  border: 1px solid var(--m-outv);
  border-radius: var(--radius-xl);
  padding: 28px;
  display: flex;
  align-items: center;
  gap: 22px;
  margin: 48px 0;
  box-shadow: 0 10px 26px var(--m-shadow);
}

.author-card-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--m-p);
  color: var(--m-op);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 24px;
  flex: 0 0 auto;
}

.author-card-content h4 {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 6px;
}

.author-card-content p {
  font-size: 14px;
  line-height: 1.5;
  color: var(--m-osv);
  margin: 0;
}

/* Download CTA Banner */
.download-cta-banner {
  background: linear-gradient(135deg, #0F69F8 0%, #164FC0 100%);
  color: #FFFFFF;
  border-radius: var(--radius-2xl);
  padding: 48px 40px;
  margin: 56px 0;
  box-shadow: 0 20px 48px rgba(15, 105, 248, 0.35);
  text-align: center;
}

.download-cta-banner h3 {
  font-size: clamp(24px, 3.5vw, 34px);
  font-weight: 800;
  margin-bottom: 12px;
  color: #FFFFFF;
}

.download-cta-banner p {
  font-size: 16.5px;
  max-width: 580px;
  margin: 0 auto 28px;
  opacity: 0.92;
}

.download-cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-store-white {
  height: 52px;
  padding: 0 24px;
  border-radius: var(--radius-pill);
  background: #FFFFFF;
  color: #001945;
  font-size: 15px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
}

.btn-store-white:hover {
  background: #F3EDF1;
}