/* Professional Blog Styling - Core Variables & Typography */

:root {
  /* Colors */
  --blog-primary: #0044eb;
  --blog-primary-dark: #0033b3;
  --blog-primary-light: #e6edfd;
  --blog-accent: #0369a1;
  --blog-text-main: #1e293b;
  --blog-text-body: #334155;
  --blog-text-muted: #64748b;
  --blog-bg-light: #f8fafc;
  --blog-border: #e2e8f0;

  /* Highlight Colors */
  --highlight-info-bg: #eff6ff;
  --highlight-info-border: #3b82f6;
  --highlight-tip-bg: #ecfdf5;
  --highlight-tip-border: #10b981;
  --highlight-warning-bg: #fffbeb;
  --highlight-warning-border: #f59e0b;
  --highlight-success-bg: #f0fdf4;
  --highlight-success-border: #22c55e;
}

/* Typography Enhancements */
.blog-content {
  font-family:
    'Inter',
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
  color: var(--blog-text-body);
  line-height: 1.8;
  font-size: 1.125rem; /* 18px */
}

.blog-content h1,
.blog-content h2,
.blog-content h3,
.blog-content h4 {
  color: var(--blog-text-main);
  font-weight: 700;
  line-height: 1.3;
  margin-top: 2.5em;
  margin-bottom: 0.8em;
  letter-spacing: -0.02em;
}

.blog-content h1 {
  font-size: 2.5rem;
}
.blog-content h2 {
  font-size: 2rem;
  border-bottom: 1px solid var(--blog-border);
  padding-bottom: 0.5em;
}
.blog-content h3 {
  font-size: 1.5rem;
}
.blog-content h4 {
  font-size: 1.25rem;
}

.blog-content p {
  margin-bottom: 1.5em;
}

.blog-content a {
  color: var(--blog-primary);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
  transition: all 0.2s ease;
}

.blog-content a:hover {
  color: var(--blog-primary-dark);
  text-decoration-thickness: 3px;
  background: var(--blog-primary-light);
}

.blog-content ul,
.blog-content ol {
  margin-bottom: 1.5em;
  padding-left: 1.5em;
}

.blog-content li {
  margin-bottom: 0.5em;
  position: relative;
}

.blog-content ul li::marker {
  color: var(--blog-primary);
}

.blog-content blockquote {
  border-left: 4px solid var(--blog-primary);
  background: var(--blog-bg-light);
  padding: 1.5em 2em;
  margin: 2em 0;
  border-radius: 0 8px 8px 0;
  font-style: italic;
  font-size: 1.25rem;
  color: var(--blog-text-main);
}

/* Reading Progress Bar */
.reading-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: transparent;
  z-index: 9999;
}

.reading-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--blog-primary), var(--blog-accent));
  width: 0%;
  transition: width 0.1s ease-out;
  box-shadow: 0 0 10px rgba(0, 68, 235, 0.3);
}

/* Breadcrumb Styling */
.breadcrumb {
  padding: 1rem 0;
  margin-bottom: 1rem;
  color: var(--blog-text-muted);
  font-size: 0.9rem;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumb__item {
  display: flex;
  align-items: center;
}

.breadcrumb__link {
  display: flex;
  align-items: center;
  color: var(--blog-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb__link:hover {
  color: var(--blog-primary);
}

.breadcrumb__separator {
  margin: 0 0.5rem;
  color: var(--blog-border);
}

.breadcrumb__current {
  color: var(--blog-text-main);
  font-weight: 500;
}

/* Highlight Box Components */
.highlight-box {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: 8px;
  border-left: 4px solid;
}

.highlight-box__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

.highlight-box__content {
  flex-grow: 1;
}

.highlight-box__title {
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

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

/* Variants */
.highlight-box--info {
  background-color: var(--highlight-info-bg);
  border-color: var(--highlight-info-border);
  color: #1e3a8a;
}
.highlight-box--info .highlight-box__icon {
  color: var(--highlight-info-border);
}

.highlight-box--tip {
  background-color: var(--highlight-tip-bg);
  border-color: var(--highlight-tip-border);
  color: #064e3b;
}
.highlight-box--tip .highlight-box__icon {
  color: var(--highlight-tip-border);
}

.highlight-box--warning {
  background-color: var(--highlight-warning-bg);
  border-color: var(--highlight-warning-border);
  color: #78350f;
}
.highlight-box--warning .highlight-box__icon {
  color: var(--highlight-warning-border);
}

.highlight-box--success {
  background-color: var(--highlight-success-bg);
  border-color: var(--highlight-success-border);
  color: #14532d;
}
.highlight-box--success .highlight-box__icon {
  color: var(--highlight-success-border);
}

/* Table of Contents */
.toc-container {
  background-color: #fff;
  border-radius: 8px;
  border: 1px solid var(--blog-border);
  padding: 1.5rem;
  margin-bottom: 2rem;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  position: sticky;
  top: 100px;
}

.toc-title {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--blog-text-main);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--blog-primary-light);
  letter-spacing: 0.05em;
}

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

.toc-item {
  margin-bottom: 0.5rem;
}

.toc-link {
  display: block;
  color: var(--blog-text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 0.25rem 0;
  transition: all 0.2s ease;
  line-height: 1.4;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  width: 100%;
}

.toc-link:hover {
  color: var(--blog-primary);
  transform: translateX(4px);
}

.toc-link--active {
  color: var(--blog-primary);
  font-weight: 600;
  border-left: 2px solid var(--blog-primary);
  padding-left: 0.5rem;
}

.toc-list--nested {
  margin-left: 1rem;
  margin-top: 0.5rem;
  border-left: 1px solid var(--blog-border);
  padding-left: 0.5rem;
}

.toc-item--level-3 .toc-link {
  font-size: 0.85rem;
}

/* Mobile TOC */
.toc-mobile-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--blog-primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(0, 68, 235, 0.3);
  z-index: 99;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.toc-mobile-toggle:hover {
  transform: translateY(-2px);
}

.toc-container--open {
  display: block;
  position: fixed;
  bottom: 80px;
  right: 20px;
  width: 300px;
  max-height: 70vh;
  z-index: 100;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  top: auto;
}

.toc-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 90;
  backdrop-filter: blur(2px);
}

.toc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.toc-close {
  background: none;
  border: none;
  color: var(--blog-text-muted);
  cursor: pointer;
}

/* Social Share Components */
.social-share {
  margin-bottom: 2rem;
}

.social-share__title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--blog-text-muted);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.social-share__buttons {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.social-share__button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 15px;
  background: #fff;
  border: 1px solid var(--blog-border);
  border-radius: 6px;
  color: var(--blog-text-body);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.social-share__button:hover {
  background-color: var(--blog-bg-light);
  transform: translateX(4px);
  border-color: var(--blog-primary-light);
}

.social-share__button svg {
  flex-shrink: 0;
}

.social-share__button--whatsapp:hover {
  color: #25d366;
  border-color: #25d366;
  background: #f0fdf4;
}
.social-share__button--linkedin:hover {
  color: #0077b5;
  border-color: #0077b5;
  background: #eff6ff;
}
.social-share__button--twitter:hover {
  color: #1da1f2;
  border-color: #1da1f2;
  background: #eff6ff;
}
.social-share__button--facebook:hover {
  color: #1877f2;
  border-color: #1877f2;
  background: #eff6ff;
}

.social-share__count {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--blog-text-muted);
  background: var(--blog-bg-light);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Author Bio */
.author-bio {
  background-color: var(--blog-bg-light);
  border-radius: 12px;
  padding: 2rem;
  margin: 3rem 0;
  border: 1px solid var(--blog-border);
}

.author-bio__container {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.author-bio__image-wrapper {
  flex-shrink: 0;
}

.author-bio__image {
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  width: 100px;
  height: 100px;
  object-fit: cover;
}

.author-bio__content {
  flex-grow: 1;
}

.author-bio__header {
  margin-bottom: 0.5rem;
}

.author-bio__name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--blog-text-main);
  margin: 0;
}

.author-bio__title {
  color: var(--blog-primary);
  font-size: 0.9rem;
  font-weight: 500;
  margin: 0;
}

.author-bio__description {
  color: var(--blog-text-body);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.author-bio__social {
  display: flex;
  gap: 1rem;
}

.author-bio__social-link {
  color: var(--blog-text-muted);
  transition: color 0.2s ease;
}

.author-bio__social-link:hover {
  color: var(--blog-primary);
}

/* Newsletter Subscription */
.newsletter {
  background: linear-gradient(135deg, var(--blog-primary) 0%, var(--blog-accent) 100%);
  border-radius: 16px;
  padding: 3rem;
  margin: 3rem 0;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.newsletter::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.newsletter__container {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.newsletter__icon {
  margin-bottom: 1.5rem;
  color: rgba(255, 255, 255, 0.9);
}

.newsletter__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #fff !important;
}

.newsletter__description {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
}

.newsletter__form {
  margin-bottom: 1.5rem;
}

.newsletter__input-group {
  display: flex;
  gap: 10px;
}

.newsletter__input {
  flex-grow: 1;
  padding: 12px 16px;
  border-radius: 8px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 1rem;
  transition: all 0.2s ease;
}

.newsletter__input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.newsletter__input:focus {
  background: #fff;
  color: var(--blog-text-main);
  outline: none;
  border-color: #fff;
}

.newsletter__button {
  padding: 12px 24px;
  background: #fff;
  color: var(--blog-primary);
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 120px;
}

.newsletter__button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.newsletter__button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.newsletter__message {
  margin-top: 1rem;
  padding: 10px;
  border-radius: 6px;
  font-size: 0.9rem;
}

.newsletter__message--success {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.newsletter__message--error {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.newsletter__privacy {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* Responsive Adjustments */
@media (max-width: 1023px) {
  .author-bio__container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .author-bio__social {
    justify-content: center;
  }

  .newsletter {
    padding: 2rem 1.5rem;
  }

  .newsletter__input-group {
    flex-direction: column;
  }

  .newsletter__button {
    width: 100%;
  }
}

/* Layout Utilities */
.blog-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 1024px) {
  .blog-layout {
    grid-template-columns: 300px 1fr;
    gap: 4rem;
  }

  .blog-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
  }
}

/* Metadata Section */
.blog-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 2rem;
  font-size: 0.95rem;
  color: var(--blog-text-muted);
  border-bottom: 1px solid var(--blog-border);
  padding-bottom: 2rem;
}

.blog-meta__item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.blog-meta__icon {
  color: var(--blog-accent);
}

/* Call to Action Box */
.cta-box {
  padding: 2.5rem;
  border-radius: 12px;
  margin: 3rem 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  position: relative;
  overflow: hidden;
}

.cta-box--primary {
  background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
  border: 2px solid var(--blog-primary-light);
}

.cta-box--secondary {
  background: var(--blog-bg-light);
  border: 1px solid var(--blog-border);
}

.cta-box__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--blog-text-main);
  margin-bottom: 0.5rem;
}

.cta-box__description {
  font-size: 1.1rem;
  color: var(--blog-text-body);
  max-width: 600px;
  margin: 0 auto;
}

.cta-box__button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background-color: var(--blog-primary);
  color: #fff;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none !important;
  transition: all 0.2s ease;
  box-shadow: 0 4px 6px rgba(0, 68, 235, 0.2);
}

.cta-box__button:hover {
  background-color: var(--blog-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 68, 235, 0.3);
  color: #fff;
}

/* Image Enhancements */
.blog-content img {
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  max-width: 100%;
  height: auto;
  margin: 2rem 0;
}

.blog-image-caption {
  text-align: center;
  font-size: 0.9rem;
  color: var(--blog-text-muted);
  margin-top: -1.5rem;
  margin-bottom: 2rem;
  font-style: italic;
}

/* Table Styling */
.blog-table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
  border-radius: 8px;
  border: 1px solid var(--blog-border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.blog-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.blog-content th {
  background-color: var(--blog-bg-light);
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 2px solid var(--blog-border);
  color: var(--blog-text-main);
}

.blog-content td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--blog-border);
  color: var(--blog-text-body);
}

.blog-content tr:last-child td {
  border-bottom: none;
}

.blog-content tr:nth-child(even) {
  background-color: #fafcfd;
}

/* Code Block Styling */
.blog-content pre {
  background-color: #1e293b;
  color: #f8fafc;
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 2rem 0;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  position: relative;
}

.blog-content code {
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.85em;
  background-color: var(--blog-bg-light);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  color: var(--blog-primary);
  border: 1px solid var(--blog-border);
}

.blog-content pre code {
  background-color: transparent;
  padding: 0;
  border: none;
  color: inherit;
  font-size: inherit;
}

/* Copy Button for Code Blocks */
.code-block-wrapper {
  position: relative;
  margin: 2rem 0;
}

.copy-button {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
  opacity: 0;
}

.code-block-wrapper:hover .copy-button {
  opacity: 1;
}

.copy-button:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Print Styles */
@media print {
  .reading-progress-container,
  .toc-container,
  .social-share,
  .newsletter,
  .breadcrumb,
  header,
  footer {
    display: none !important;
  }

  .blog-layout {
    display: block;
  }

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

  .blog-content a {
    text-decoration: none;
    color: #000;
  }

  .blog-content a::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
  }
}