/*
 * VibeDocs — Article Template Styles
 * Warm terracotta/sage design system. No Google Fonts; relies on theme stack.
 */

/* ─── Design tokens ─── */
.vbd-article-page {
  --vbd-bg-elev:      #ffffff;
  --vbd-ink:          #1a1a1a;
  --vbd-ink-soft:     #4a4a4a;
  --vbd-ink-muted:    #7a7a7a;
  --vbd-rule:         #e8e3d8;
  --vbd-rule-strong:  #d4cdba;
  --vbd-code-bg:      #1f1e1b;
  --vbd-code-ink:     #f5f1e8;
  --vbd-code-key:     #e8b86a;
  --vbd-code-punct:   #8a857a;

  background: var(--vbd-bg);
  color: var(--vbd-ink);
  background-image: radial-gradient(circle at 1px 1px, rgba(0,0,0,0.025) 1px, transparent 0);
  background-size: 24px 24px;
  min-height: 60vh;
  scroll-behavior: smooth;
}

/* ─── Reading progress bar (fixed top) ─── */
.vbd-reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--vbd-accent);
  z-index: 9999;
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

/* ─── Shell: 3-column grid ─── */
.vbd-shell {
  max-width: var(--vibedocs-container-width, 1400px);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr) 240px;
  gap: 56px;
  align-items: start;
}

/* ─── Left sidebar nav ─── */
.vbd-sidenav {
  position: sticky;
  top: calc(var(--vd-theme-header-height, 0px) + var(--vd-sticky-offset, 24px));
  padding: 40px 0;
  max-height: calc(100vh - var(--vd-theme-header-height, 0px) - var(--vd-sticky-offset, 24px));
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--vbd-rule-strong) transparent;
}

.vbd-sidenav::-webkit-scrollbar { width: 4px; }
.vbd-sidenav::-webkit-scrollbar-track { background: transparent; }
.vbd-sidenav::-webkit-scrollbar-thumb { background: var(--vbd-rule-strong); border-radius: 2px; }

.vbd-sidenav-section {
  margin-bottom: 28px;
}

.vbd-sidenav-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--vbd-ink-muted);
  margin-bottom: 10px;
  padding-left: 12px;
  font-weight: 600;
}

.vbd-sidenav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.vbd-sidenav-link {
  display: block;
  padding: 7px 12px;
  font-size: 14px;
  color: var(--vbd-ink-soft);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  line-height: 1.4;
}

.vbd-sidenav-link:hover {
  color: var(--vbd-ink);
  border-left-color: var(--vbd-rule-strong);
}

.vbd-sidenav-link.is-active {
  color: var(--vbd-accent);
  font-weight: 500;
  border-left-color: var(--vbd-accent);
  background: var(--vbd-accent-soft);
}

/* mobile hamburger toggle */
.vbd-mobile-nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  background: var(--vbd-bg-elev);
  border: 1px solid var(--vbd-rule);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--vbd-ink-soft);
  cursor: pointer;
  margin-bottom: 24px;
  width: 100%;
}

.vbd-mobile-nav-toggle svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  flex-shrink: 0;
}

.vbd-mobile-nav-drawer {
  display: none;
  background: var(--vbd-bg-elev);
  border: 1px solid var(--vbd-rule);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 24px;
}

.vbd-mobile-nav-drawer.is-open {
  display: block;
}

/* ─── Main content area ─── */
.vbd-main {
  padding: 40px 0 96px;
  min-width: 0;
}

/* ─── Breadcrumbs ─── */
.vbd-crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--vbd-ink-muted);
  margin-bottom: 32px;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin-top: 0;
}

.vbd-crumbs a {
  color: var(--vbd-ink-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.vbd-crumbs a:hover { color: var(--vbd-accent); }

.vbd-crumbs .vbd-crumb-sep { opacity: 0.5; }

.vbd-crumbs .vbd-crumb-current {
  color: var(--vbd-ink);
  font-weight: 500;
}

/* ─── Article header ─── */
.vbd-doc-header {
  margin-bottom: 48px;
}

.vbd-doc-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--vbd-accent);
  background: var(--vbd-accent-soft);
  padding: 6px 12px;
  border-radius: 100px;
  margin-bottom: 20px;
  font-weight: 600;
}

.vbd-doc-eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--vbd-accent);
  flex-shrink: 0;
}

.vbd-doc-title {
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 600;
  color: var(--vbd-ink);
  margin-bottom: 20px;
  margin-top: 0;
}

.vbd-doc-subtitle {
  font-size: 19px;
  line-height: 1.6;
  color: var(--vbd-ink-soft);
  max-width: 640px;
  font-weight: 400;
  font-style: italic;
  margin: 0;
}

.vbd-doc-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--vbd-rule);
  font-size: 13px;
  color: var(--vbd-ink-muted);
  flex-wrap: wrap;
}

.vbd-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.vbd-meta-item svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  flex-shrink: 0;
}

/* ─── Article badges ─── */
.vbd-doc-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.vbd-doc-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 100px;
  background: color-mix(in srgb, var(--badge-color, var(--vbd-accent)) 12%, transparent);
  color: var(--badge-color, var(--vbd-accent));
  border: 1px solid color-mix(in srgb, var(--badge-color, var(--vbd-accent)) 30%, transparent);
}

/* ─── Article body typography ─── */
.vbd-article-body {
  font-size: 16px;
  line-height: 1.75;
  color: var(--vbd-ink-soft);
}

.vbd-article-body h2 {
  font-size: 26px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--vbd-ink);
  margin: 56px 0 20px;
  scroll-margin-top: 100px;
}

.vbd-article-body h3 {
  font-size: 20px;
  line-height: 1.3;
  font-weight: 600;
  color: var(--vbd-ink);
  margin: 36px 0 14px;
  scroll-margin-top: 100px;
}

.vbd-article-body h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--vbd-ink);
  margin: 28px 0 10px;
}

.vbd-article-body p {
  margin-bottom: 20px;
}

.vbd-article-body ul,
.vbd-article-body ol {
  margin: 16px 0 24px 24px;
  padding: 0;
}

.vbd-article-body li {
  margin-bottom: 8px;
}

.vbd-article-body strong {
  font-weight: 600;
  color: var(--vbd-ink);
}

.vbd-article-body a {
  color: var(--vbd-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.vbd-article-body a:hover {
  color: var(--vbd-accent-ink);
}

.vbd-article-body code {
  font-size: 0.88em;
  background: var(--vbd-accent-soft);
  color: var(--vbd-accent-ink);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid rgba(194, 65, 12, 0.15);
}

.vbd-article-body pre code {
  background: none;
  color: inherit;
  padding: 0;
  border: none;
  font-size: inherit;
}

.vbd-article-body blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  background: var(--vbd-sage-soft);
  border-left: 3px solid var(--vbd-sage);
  border-radius: 0 10px 10px 0;
  color: var(--vbd-ink-soft);
  font-style: italic;
}

.vbd-article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--vbd-rule);
}

.vbd-article-body figure {
  margin: 24px 0;
}

.vbd-article-body figcaption {
  font-size: 13px;
  color: var(--vbd-ink-muted);
  text-align: center;
  margin-top: 10px;
  font-style: italic;
}

.vbd-article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.vbd-article-body th,
.vbd-article-body td {
  padding: 10px 14px;
  border: 1px solid var(--vbd-rule);
  text-align: left;
}

.vbd-article-body th {
  background: var(--vbd-bg-elev);
  font-weight: 600;
  color: var(--vbd-ink);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.vbd-article-body tr:nth-child(even) td {
  background: rgba(255,255,255,0.6);
}

.vbd-article-body hr {
  border: none;
  border-top: 1px solid var(--vbd-rule);
  margin: 40px 0;
}

/* ─── Next up section ─── */
.vbd-next-up {
  margin-top: 80px;
  padding-top: 48px;
  border-top: 1px solid var(--vbd-rule);
}

.vbd-section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--vbd-ink-muted);
  margin-bottom: 10px;
  font-weight: 600;
}

.vbd-section-title {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--vbd-ink);
  margin-bottom: 28px;
  margin-top: 0;
  line-height: 1.2;
}

.vbd-next-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.vbd-next-card {
  display: block;
  padding: 24px;
  background: var(--vbd-bg-elev);
  border: 1px solid var(--vbd-rule);
  border-radius: 12px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}

.vbd-next-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--vbd-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.vbd-next-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -12px rgba(0,0,0,0.12);
}

.vbd-next-card:hover::after {
  transform: scaleX(1);
}

.vbd-next-card-label {
  font-size: 11px;
  color: var(--vbd-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 10px;
  font-weight: 600;
}

.vbd-next-card-title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--vbd-ink);
  margin-bottom: 8px;
  line-height: 1.3;
}

.vbd-next-card-desc {
  font-size: 14px;
  color: var(--vbd-ink-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.vbd-next-card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--vbd-accent);
}

.vbd-next-card-arrow svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s;
  stroke: currentColor;
  fill: none;
}

.vbd-next-card:hover .vbd-next-card-arrow svg {
  transform: translateX(3px);
}

/* ─── Feedback widget ─── */
.vbd-feedback {
  margin-top: 64px;
  padding: 32px;
  background: var(--vbd-bg-elev);
  border: 1px dashed var(--vbd-rule-strong);
  border-radius: 12px;
  text-align: center;
}

.vbd-feedback h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--vbd-ink);
  margin-top: 0;
}

.vbd-feedback p {
  color: var(--vbd-ink-muted);
  font-size: 14px;
  margin-bottom: 20px;
}

.vbd-feedback-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.vbd-feedback-thanks {
  display: none;
  font-size: 15px;
  color: var(--vbd-sage);
  font-weight: 500;
  align-items: center;
  gap: 8px;
  justify-content: center;
}

.vbd-feedback-thanks svg {
  width: 18px;
  height: 18px;
  stroke: var(--vbd-sage);
  fill: none;
}

.vbd-feedback.is-voted .vbd-feedback-actions { display: none; }
.vbd-feedback.is-voted .vbd-feedback-thanks { display: flex; }

/* Buttons */
.vbd-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s;
  cursor: pointer;
  border: 1px solid transparent;
  font-family: inherit;
}

.vbd-btn svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  flex-shrink: 0;
}

.vbd-btn-primary {
  background: var(--vbd-ink);
  color: var(--vbd-bg);
}

.vbd-btn-primary:hover {
  background: var(--vbd-accent);
  color: var(--vbd-bg);
}

.vbd-btn-ghost {
  background: transparent;
  color: var(--vbd-ink-soft);
  border-color: var(--vbd-rule-strong);
}

.vbd-btn-ghost:hover {
  border-color: var(--vbd-ink);
  color: var(--vbd-ink);
}

/* ─── Right rail TOC ─── */
.vbd-toc {
  position: sticky;
  top: calc(var(--vd-theme-header-height, 0px) + var(--vd-sticky-offset, 24px));
  padding: 40px 0;
  max-height: calc(100vh - var(--vd-theme-header-height, 0px) - var(--vd-sticky-offset, 24px));
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--vbd-rule-strong) transparent;
}

.vbd-toc::-webkit-scrollbar { width: 4px; }
.vbd-toc::-webkit-scrollbar-track { background: transparent; }
.vbd-toc::-webkit-scrollbar-thumb { background: var(--vbd-rule-strong); border-radius: 2px; }

.vbd-toc-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--vbd-ink-muted);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--vbd-rule);
  font-weight: 600;
}

.vbd-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.vbd-toc-link {
  display: block;
  padding: 6px 0 6px 12px;
  font-size: 13px;
  color: var(--vbd-ink-muted);
  text-decoration: none;
  border-left: 1px solid var(--vbd-rule);
  transition: color 0.15s, border-color 0.15s;
  line-height: 1.4;
}

.vbd-toc-link:hover {
  color: var(--vbd-ink);
  border-left-color: var(--vbd-rule-strong);
}

.vbd-toc-link.is-active {
  color: var(--vbd-accent);
  border-left-color: var(--vbd-accent);
  font-weight: 500;
}

.vbd-toc-item-h3 .vbd-toc-link {
  padding-left: 22px;
  font-size: 12px;
}

.vbd-toc-progress {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--vbd-rule);
}

.vbd-toc-progress-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--vbd-ink-muted);
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  font-weight: 600;
}

.vbd-toc-progress-bar {
  height: 3px;
  background: var(--vbd-rule);
  border-radius: 2px;
  overflow: hidden;
}

.vbd-toc-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--vbd-accent);
  border-radius: 2px;
  transition: width 0.2s;
}

/* ─── Blocks inside article body ─── */
.vbd-article-body .wp-block-vibedocs-callout,
.vbd-article-body .vibedocs-callout {
  margin: 24px 0;
}

.vbd-article-body .wp-block-vibedocs-steps,
.vbd-article-body .vibedocs-steps {
  margin: 32px 0;
}

.vbd-article-body .wp-block-vibedocs-code,
.vbd-article-body .vibedocs-code-block {
  margin: 20px 0;
}

/* ─── Entrance animation ─── */
@keyframes vbd-fade-up {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.vbd-fade-in {
  animation: vbd-fade-up 0.5s ease forwards;
}

.vbd-delay-1 { animation-delay: 0.05s; }
.vbd-delay-2 { animation-delay: 0.12s; }
.vbd-delay-3 { animation-delay: 0.18s; }

/* ─── Responsive: hide right TOC at 1100px ─── */
@media (max-width: 1100px) {
  .vbd-shell {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 40px;
  }
  .vbd-toc {
    display: none;
  }
}

/* ─── Responsive: mobile (768px) ─── */
@media (max-width: 768px) {
  .vbd-shell {
    grid-template-columns: 1fr;
    padding: 0 20px;
    gap: 0;
  }

  .vbd-sidenav {
    display: none;
  }

  .vbd-mobile-nav-toggle {
    display: flex;
  }

  .vbd-doc-title {
    font-size: 28px;
  }

  .vbd-doc-meta {
    gap: 12px;
    font-size: 12px;
  }

  .vbd-doc-subtitle {
    font-size: 17px;
  }

  .vbd-main {
    padding: 24px 0 64px;
  }

  .vbd-feedback {
    padding: 24px 20px;
  }
}