/* ================================================================
   Claude Architect Documentation - Article Styles
   Extends styles.css for article page layouts
   ================================================================ */

/* ----------------------------------------------------------------
   NAV SECTION LINK (clickable Docs link)
   ---------------------------------------------------------------- */
.nav-section-link {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-cyan);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-section-link:hover {
  color: var(--color-text-primary);
}

/* ----------------------------------------------------------------
   ARTICLE LAYOUT
   ---------------------------------------------------------------- */
.article {
  display: grid;
  grid-template-columns: 1fr min(720px, calc(100% - 3rem)) 1fr;
  padding-bottom: var(--space-16);
}

.article > * {
  grid-column: 2;
}

/* Allow TOC to break out of the grid on large screens */
@media (min-width: 1200px) {
  .article {
    grid-template-columns: 1fr min(720px, 100%) 280px;
    column-gap: var(--space-12);
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-6);
  }

  .article > * {
    grid-column: 2;
  }

  .toc {
    grid-column: 3;
    grid-row: 2 / span 10;
  }
}

/* ----------------------------------------------------------------
   ARTICLE HEADER
   ---------------------------------------------------------------- */
.article__header {
  padding-top: var(--space-16);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-border-subtle);
  margin-bottom: var(--space-12);
}

.article__meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.article__back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-tertiary);
  transition: color var(--duration-fast) var(--ease-out);
}

.article__back:hover {
  color: var(--color-cyan);
}

.article__back svg {
  transition: transform var(--duration-fast) var(--ease-out);
}

.article__back:hover svg {
  transform: translateX(-3px);
}

.article__category {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  padding: var(--space-1) var(--space-3);
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-full);
}

.article__header h1 {
  font-size: clamp(var(--text-3xl), 6vw, var(--text-5xl));
  font-weight: 700;
  letter-spacing: var(--tracking-tighter);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-6);
  color: var(--color-text-primary);
}

.article__subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 600px;
  margin-bottom: var(--space-6);
}

.article__info {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.article__reading-time {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.article__divider {
  width: 4px;
  height: 4px;
  background: var(--color-text-muted);
  border-radius: 50%;
}

.article__badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-weight: 700;
  color: var(--color-text-tertiary);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
}

/* ----------------------------------------------------------------
   TABLE OF CONTENTS
   ---------------------------------------------------------------- */
.toc {
  display: none;
}

@media (min-width: 1200px) {
  .toc {
    display: block;
    position: sticky;
    top: calc(var(--header-height) + var(--space-8));
    height: fit-content;
    max-height: calc(100vh - var(--header-height) - var(--space-16));
    overflow-y: auto;
  }

  .toc__inner {
    padding: var(--space-6);
    background: rgba(15, 15, 24, 0.6);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }

  .toc__title {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    margin-bottom: var(--space-4);
  }

  .toc__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    list-style: none;
    counter-reset: toc;
  }

  .toc__list li {
    counter-increment: toc;
  }

  .toc__list a {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    line-height: var(--leading-normal);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-out);
  }

  .toc__list a::before {
    content: counter(toc, decimal-leading-zero) ". ";
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-right: var(--space-1);
  }

  .toc__list a:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.03);
  }

  .toc__list a.is-active {
    color: var(--color-cyan);
    background: rgba(0, 240, 255, 0.08);
  }

  .toc__list a.is-active::before {
    color: var(--color-cyan);
  }
}

/* ----------------------------------------------------------------
   ARTICLE CONTENT - Typography
   ---------------------------------------------------------------- */
.article__content {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}

.article__content > * + * {
  margin-top: var(--space-6);
}

.article__content section {
  scroll-margin-top: calc(var(--header-height) + var(--space-8));
}

.article__content section + section {
  margin-top: var(--space-16);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border-subtle);
}

/* Headings */
.article__content h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
  letter-spacing: var(--tracking-tight);
}

.article__content h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

/* Paragraphs */
.article__content p {
  margin-bottom: var(--space-4);
}

.article__content p:last-child {
  margin-bottom: 0;
}

/* Links */
.article__content a {
  color: var(--color-cyan);
  text-decoration: underline;
  text-decoration-color: rgba(0, 240, 255, 0.3);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--duration-fast) var(--ease-out);
}

.article__content a:hover {
  text-decoration-color: var(--color-cyan);
}

/* Lists */
.article__content ul,
.article__content ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-6);
}

.article__content li {
  margin-bottom: var(--space-2);
}

.article__content li::marker {
  color: var(--color-cyan);
}

/* Inline code */
.article__content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--color-magenta);
  background: rgba(255, 45, 146, 0.1);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
}

/* Strong text */
.article__content strong {
  font-weight: 600;
  color: var(--color-text-primary);
}

/* ----------------------------------------------------------------
   CODE BLOCKS
   ---------------------------------------------------------------- */
.code-block {
  margin: var(--space-8) 0;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.code-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-5);
  background: var(--color-bg-tertiary);
  border-bottom: 1px solid var(--color-border-subtle);
}

.code-block__language {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.code-block pre {
  margin: 0;
  padding: var(--space-5);
  overflow-x: auto;
}

.code-block code {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  background: transparent;
  padding: 0;
  border-radius: 0;
}

/* ----------------------------------------------------------------
   CALLOUT BOXES
   ---------------------------------------------------------------- */
.callout {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  margin: var(--space-8) 0;
  border-radius: var(--radius-xl);
  border: 1px solid;
}

.callout__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.callout__icon svg {
  width: 20px;
  height: 20px;
}

.callout__content {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}

.callout__content strong {
  display: block;
  margin-bottom: var(--space-1);
}

/* Info callout */
.callout--info {
  background: rgba(0, 240, 255, 0.05);
  border-color: rgba(0, 240, 255, 0.2);
}

.callout--info .callout__icon {
  color: var(--color-cyan);
}

.callout--info .callout__content strong {
  color: var(--color-cyan);
}

/* Warning callout */
.callout--warning {
  background: rgba(255, 184, 0, 0.05);
  border-color: rgba(255, 184, 0, 0.2);
}

.callout--warning .callout__icon {
  color: var(--color-amber);
}

.callout--warning .callout__content strong {
  color: var(--color-amber);
}

/* ----------------------------------------------------------------
   CTA BOX
   ---------------------------------------------------------------- */
.cta-box {
  position: relative;
  padding: var(--space-10);
  margin-top: var(--space-12);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.08) 0%, rgba(255, 45, 146, 0.08) 100%);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-2xl);
  text-align: center;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.5), transparent);
}

.cta-box h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  margin-top: 0;
}

.cta-box p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: var(--space-6);
}

.cta-box__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4) var(--space-8);
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-bg-void);
  background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-magenta) 100%);
  border-radius: var(--radius-xl);
  text-decoration: none;
  transition: all var(--duration-base) var(--ease-out);
  box-shadow: 0 4px 24px rgba(0, 240, 255, 0.3);
}

.cta-box__button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0, 240, 255, 0.4), 0 0 60px rgba(0, 240, 255, 0.2);
  text-decoration: none;
}

/* ----------------------------------------------------------------
   ARTICLE FOOTER & NAVIGATION
   ---------------------------------------------------------------- */
.article__footer {
  margin-top: var(--space-16);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border-subtle);
}

.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.article-nav__prev,
.article-nav__next {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.article-nav__next {
  text-align: right;
  align-items: flex-end;
}

.article-nav__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
}

.article-nav__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  transition: color var(--duration-fast) var(--ease-out);
}

.article-nav__link:hover {
  color: var(--color-cyan);
}

.article-nav__link svg {
  transition: transform var(--duration-fast) var(--ease-out);
}

.article-nav__prev .article-nav__link:hover svg {
  transform: translateX(-3px);
}

.article-nav__next .article-nav__link:hover svg {
  transform: translateX(3px);
}

/* ----------------------------------------------------------------
   RESPONSIVE ADJUSTMENTS
   ---------------------------------------------------------------- */
@media (max-width: 768px) {
  .article__header {
    padding-top: var(--space-10);
    padding-bottom: var(--space-8);
    margin-bottom: var(--space-8);
  }

  .article__header h1 {
    font-size: var(--text-2xl);
  }

  .article__subtitle {
    font-size: var(--text-base);
  }

  .article__content {
    font-size: var(--text-base);
  }

  .article__content h2 {
    font-size: var(--text-xl);
  }

  .article__content h3 {
    font-size: var(--text-lg);
  }

  .article__content section + section {
    margin-top: var(--space-12);
    padding-top: var(--space-6);
  }

  .code-block pre {
    padding: var(--space-4);
  }

  .code-block code {
    font-size: var(--text-xs);
  }

  .callout {
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-4);
  }

  .cta-box {
    padding: var(--space-6);
  }

  .cta-box h3 {
    font-size: var(--text-xl);
  }

  .article-nav {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .article-nav__next {
    text-align: left;
    align-items: flex-start;
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-subtle);
  }
}

@media (max-width: 480px) {
  .article__meta {
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  .article__info {
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  .article__header h1 {
    font-size: var(--text-xl);
  }

  .code-block code {
    font-size: 0.7rem;
  }
}

/* ----------------------------------------------------------------
   PRINT STYLES
   ---------------------------------------------------------------- */
@media print {
  .mesh-gradient,
  .grid-overlay,
  header[role="banner"],
  .toc,
  .cta-box,
  .article-nav,
  footer[role="contentinfo"] {
    display: none !important;
  }

  .article {
    display: block;
    max-width: 100%;
    padding: 0;
  }

  .article__header {
    padding-top: 0;
  }

  .article__content {
    font-size: 12pt;
    color: #000;
  }

  .article__content h2,
  .article__content h3 {
    color: #000;
  }

  .article__content a {
    color: #000;
    text-decoration: underline;
  }

  .code-block {
    border: 1px solid #ccc;
  }

  .callout {
    border: 1px solid #ccc;
    background: #f5f5f5;
  }
}