/* Custom Article Layout CSS */
:root {
  /* Color variables */
  --color-primary: #4338ca;
  --color-primary-dark: #3730a3;
  --color-text-main: #1f2937;
  --color-text-light: #475569;
  --color-text-lighter: #6b7280;
  --color-bg-light: #f9fafb;
  --color-bg-main: #ffffff;
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  
  /* Typography */
  --font-size-base: 16px;
  --line-height-base: 1.6;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Container width */
  --container-width: 1200px;
  --article-width: 768px;
}

/* Reset and base styles */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

/* Canvas style - full width content */
body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-base);
  color: var(--color-text-main);
  background-color: var(--color-bg-main);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  color: var(--color-text-main);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  text-align: center;
}

/* Article hero section */
.article-hero {
  background-color: var(--color-bg-light);
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-xl);
  text-align: center;
  width: 100%;
  overflow: hidden;
}

.article-header-content {
  max-width: var(--article-width);
  width: 100%;
  margin: 0 auto var(--spacing-xl);
  padding: 0 var(--spacing-lg);
  text-align: center;
}

.article-image-wrapper {
  width: 100%;
  margin: 0 calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  padding-left: calc(50vw - 50%);
  padding-right: calc(50vw - 50%);
  background-color: var(--color-bg-light);
}

.article-image-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.article-image {
  width: 100%;
  height: 600px;
  object-fit: cover;
  object-position: center;
  display: block;
  border-radius: 0.5rem;
}

/* Container override for article hero */
.article-hero > .container {
  max-width: var(--article-width);
  width: 100%;
  margin: 0 auto;
  padding: 0;
}

/* Container */
.container {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

/* Article content section */
.article-content-section {
  padding-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-3xl);
}

.article-layout {
  display: flex;
  gap: var(--spacing-2xl);
}

/* Table of contents */
.article-toc {
  width: 25%;
  position: sticky;
  top: var(--spacing-3xl);
  align-self: flex-start;
}

.toc-title {
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-main);
}

.toc-links {
  display: flex;
  flex-direction: column;
}

.toc-link {
  color: var(--color-text-light);
  text-decoration: none;
  padding: var(--spacing-xs) 0;
  margin-bottom: var(--spacing-xs);
  transition: all 0.2s;
  border-left: 2px solid transparent;
  padding-left: var(--spacing-sm);
}

.toc-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.toc-link.active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  background-color: rgba(67, 56, 202, 0.05);
  padding-left: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
}

/* Article content */
.article-content {
  width: 75%;
  max-width: var(--article-width);
}

.section {
  scroll-margin-top: 2rem;
}

/* Categories */
.article-categories {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
  justify-content: center;
}

.article-category {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: var(--font-weight-medium);
  color: #16a34a;
  background-color: #e2f1e6;
  padding: 0.25rem 0.75rem;
  border-radius: 2rem;
  margin-right: var(--spacing-xs);
}

/* Article meta */
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
  font-size: 0.9rem;
  color: var(--color-text-lighter);
  justify-content: center;
}

.article-author {
  display: flex;
  align-items: center;
}

.author-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  margin-right: 0.5rem;
}

.meta-divider {
  margin: 0 0.5rem;
}

/* Social share */
.article-social-share {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  justify-content: center;
}

.share-label {
  font-size: 0.9rem;
  color: var(--color-text-lighter);
  margin-right: var(--spacing-sm);
}

.share-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  margin-right: 0.5rem;
  color: #fff;
  transition: opacity 0.2s;
}

.share-button:hover {
  opacity: 0.8;
}

.share-x {
  background-color: #000;
}

.share-fb {
  background-color: #1877f2;
}

.share-wa {
  background-color: #25d366;
}

/* Article body content */
.article-body {
  line-height: 1.7;
}

.article-body h2 {
  font-size: 1.75rem;
  margin-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.article-body h3 {
  font-size: 1.25rem;
  margin-top: var(--spacing-xl);
}

.article-body p {
  margin-top: 0;
  margin-bottom: var(--spacing-lg);
}

.article-body blockquote {
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-left: 4px solid var(--color-primary);
  background-color: var(--color-bg-light);
  font-style: normal;
  color: var(--color-text-light);
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-body blockquote cite {
  display: block;
  margin-top: var(--spacing-md);
  font-size: 0.9em;
  color: var(--color-text-lighter);
  font-style: normal;
}

.article-body ol, .article-body ul {
  margin-top: 0;
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
}

.article-body li {
  margin-bottom: var(--spacing-sm);
}

.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 0.5rem;
  margin: var(--spacing-lg) 0;
}

/* Mobile TOC */
.mobile-toc {
  display: none;
  background: var(--color-bg-main);
  box-shadow: 0 -10px 15px -3px rgba(0, 0, 0, 0.1);
  border-radius: 0.5rem 0.5rem 0 0;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

.mobile-toc-toggle {
  padding: var(--spacing-md);
  cursor: pointer;
  font-weight: var(--font-weight-bold);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.mobile-toc-toggle.open {
  justify-content: flex-start;
}

.mobile-toc-close {
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
}

.mobile-toc-toggle.open .mobile-toc-close {
  display: flex;
}

.mobile-toc-close:hover {
  color: var(--color-primary);
}

.mobile-toc-content {
  padding: var(--spacing-md);
  max-height: 50vh;
  overflow-y: auto;
}

.mobile-toc-content.hidden {
  display: none;
}

/* Responsive styles */
@media screen and (max-width: 1440px) {
  .article-image-container {
    max-width: 1200px;
  }
  
  .article-image {
    height: 500px;
  }
}

@media screen and (max-width: 768px) {
  h1 {
    font-size: 1.75rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
  
  .article-hero {
    padding-top: var(--spacing-2xl);
  }
  
  .article-layout {
    flex-direction: column;
  }
  
  .article-toc {
    display: none;
  }
  
  .article-content {
    width: 100%;
  }
  
  .mobile-toc {
    display: block;
  }
  
  .container {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
  
  .article-image-container {
    padding: 0;
  }
  
  .article-image {
    height: 400px;
    border-radius: 0;
  }
  
  .article-header-content {
    padding: 0 var(--spacing-md);
  }
}

@media screen and (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.35rem;
  }
  
  h3 {
    font-size: 1.15rem;
  }
  
  .article-hero {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
  }
  
  blockquote {
    padding: var(--spacing-md);
  }

  .share-button {
    width: 28px;
    height: 28px;
  }
  
  .article-image {
    height: 300px;
  }
}