:root {
  --infsec-bg: #0d1117;
  --infsec-card-bg: #161b22;
  --infsec-border: #30363d;
  --infsec-text-primary: #c9d1d9;
  --infsec-text-secondary: #8b949e;
  --infsec-accent: #58a6ff;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  background-color: var(--infsec-bg);
  color: var(--infsec-text-primary);
  font-family: var(--font-main);
  margin: 0;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-weight: 400;
}

a {
  text-decoration: none;
  color: inherit;
}

.infsec-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.infsec-header {
  padding: 20px 0;
  border-bottom: 1px solid var(--infsec-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
}

.infsec-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
}

.infsec-nav a {
  margin-left: 20px;
  color: var(--infsec-text-secondary);
  font-weight: 500;
  transition: color 0.2s;
}

.infsec-nav a:hover {
  color: #fff;
}

/* Navigation & Filters */
.reports-header {
  margin-bottom: 2rem;
}

.page-title {
  font-family: 'Space Mono', monospace;
  font-size: 2rem;
  margin: 0 0 1.5rem 0;
  color: var(--text-color);
}

.source-filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.source-tab {
  text-decoration: none;
  color: var(--text-color-secondary);
  font-family: 'Space Mono', monospace;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.source-tab:hover {
  color: var(--text-color);
  background-color: var(--card-bg);
}

.source-tab.active {
  color: var(--bg-color);
  background-color: var(--text-color);
}

.filters-bar {
  display: flex;
  justify-content: flex-end;
  color: var(--text-color-secondary);
  font-size: 0.9rem;
  font-family: 'Space Mono', monospace;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.active-filter {
  color: var(--text-color);
  font-weight: bold;
}

/* Grid Layout */
.reports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 60px;
}

/* Report Card (Exact C4 Replica) */
.report-tile--grid {
  display: flex;
  flex-direction: column;
  background-color: var(--infsec-card-bg);
  border: 1px solid var(--infsec-border);
  border-radius: 6px;
  padding: 24px;
  transition: transform 0.2s ease, border-color 0.2s ease;
  height: 100%;
  box-sizing: border-box;
  position: relative;
}

.report-tile--grid:hover {
  transform: translateY(-2px);
  border-color: var(--infsec-text-secondary);
}

.report-tile__logo-wrapper {
  margin-bottom: 16px;
}

.platform-badge {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  border: 1px solid var(--infsec-border);
}

.report-tile__title {
  margin: 0 0 12px 0;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.arrow-icon {
  opacity: 0;
  transform: translateX(-5px);
  transition: all 0.2s;
}

.report-tile--grid:hover .arrow-icon {
  opacity: 1;
  transform: translateX(0);
}

.report-tile__date-range {
  color: var(--infsec-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.report-tile__meta {
  border-top: 1px solid var(--infsec-border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.report-tile__date {
  font-size: 0.85rem;
  color: var(--infsec-text-secondary);
}

.report-tile__report-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--infsec-text-primary);
}

/* Post Detail */
.report-detail {
  max-width: 900px;
  margin: 0 auto 60px;
}

.report-detail-header {
  margin-bottom: 40px;
  border-bottom: 1px solid var(--infsec-border);
  padding-bottom: 20px;
}

.report-detail-title {
  font-size: 2.5rem;
  margin-bottom: 10px;
  color: #fff;
}

.report-detail-meta {
  color: var(--infsec-text-secondary);
  display: flex;
  gap: 20px;
}

.source-code-link {
  color: var(--infsec-accent);
}

/* Pagination */
.pagination {
  text-align: center;
  margin: 40px 0;
}

.pagination a,
.pagination span {
  padding: 10px 20px;
  border: 1px solid var(--infsec-border);
  margin: 0 5px;
  border-radius: 6px;
  background: var(--infsec-card-bg);
}

.pagination .current {
  background: var(--infsec-accent);
  color: #fff;
  border-color: var(--infsec-accent);
}

/* Button Styles */
.infsec-btn {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 10px 24px;
  font-family: 'Space Mono', monospace;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 4px;
}

.infsec-btn:hover {
  background-color: var(--border-color);
  color: var(--bg-color);
}

.infsec-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}


/* Search Styles */
.search-trigger {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 8px 16px;
  border-radius: 4px;
  cursor: pointer;
  font-family: 'Space Mono', monospace;
  transition: all 0.2s ease;
}

.search-trigger:hover {
  background-color: var(--card-bg);
  border-color: var(--infsec-accent);
}

.search-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(4px);
  z-index: 1000;
  justify-content: center;
  align-items: flex-start;
  padding-top: 100px;
}

.search-container {
  width: 90%;
  max-width: 600px;
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
}

.search-header {
  position: relative;
  border-bottom: 1px solid var(--border-color);
}

#search-input {
  width: 100%;
  padding: 20px;
  background: transparent;
  border: 2px solid #8B5CF6;
  /* Purple border from request */
  color: var(--text-color);
  font-size: 1.2rem;
  font-family: 'Space Mono', monospace;
  box-sizing: border-box;
  border-radius: 8px 8px 0 0;
  outline: none;
}

.search-close {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--text-color-secondary);
  font-size: 2rem;
  cursor: pointer;
}

.search-results {
  max-height: 60vh;
  overflow-y: auto;
  padding: 10px;
}

.search-result-item {
  display: block;
  padding: 15px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-color);
  text-decoration: none;
  transition: background-color 0.2s;
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background-color: var(--card-bg);
}

.no-results {
  padding: 20px;
  text-align: center;
  color: var(--text-color-secondary);
}

/* Markdown Overrides for Dark Mode */
.markdown-body {
  box-sizing: border-box;
  min-width: 200px;
  max-width: 980px;
  margin: 0 auto;
  padding: 20px 45px 45px 0;
  background-color: var(--infsec-bg) !important;
  color: var(--infsec-text-primary) !important;
}

.markdown-body pre {
  background-color: #161b22 !important;
  border: 1px solid #30363d !important;
  white-space: pre-wrap !important;
  word-wrap: break-word !important;
}

.markdown-body code {
  white-space: pre-wrap !important;
  word-wrap: break-word !important;
}

/* Post with TOC Layout */
.post-with-toc {
  display: flex;
  gap: 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.toc-sidebar {
  width: 250px;
  flex-shrink: 0;
  position: sticky;
  top: 40px;
  height: fit-content;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}

.toc-wrapper {
  padding: 20px;
  border-right: 1px solid var(--infsec-border);
}

.toc-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--infsec-text-secondary);
  margin: 0 0 16px 0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.toc-nav li {
  margin-bottom: 8px;
}

.toc-nav a {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--infsec-text-secondary);
  font-size: 0.85rem;
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.2s;
}

.toc-nav a:before {
  content: "✦";
  font-size: 0.7rem;
  opacity: 0.5;
  flex-shrink: 0;
  margin-top: 2px;
}

.toc-nav a:hover {
  color: var(--infsec-accent);
}

.toc-nav ol ol {
  padding-left: 16px;
  margin-top: 8px;
}

.toc-nav ol ol a:before {
  content: none;
}

.post-with-toc .report-detail {
  flex: 1;
  min-width: 0;
  max-width: none;
  margin: 0 0 60px;
}

/* Responsive: hide TOC on small screens */
@media (max-width: 1024px) {
  .post-with-toc {
    flex-direction: column;
  }

  .toc-sidebar {
    width: 100%;
    position: static;
    max-height: none;
    display: none;
  }

  .post-with-toc .report-detail {
    max-width: 900px;
    margin: 0 auto 60px;
  }
}

/* Footer */
footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--infsec-border);
  background-color: var(--infsec-bg);
  margin-top: auto;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--infsec-text-primary);
  text-decoration: none;
}

.footer-logo img {
  height: 28px;
  width: auto;
}

.footer-tagline {
  color: var(--infsec-text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  max-width: 280px;
}

.footer-cta {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border: 1px solid var(--infsec-text-primary);
  color: var(--infsec-text-primary);
  text-decoration: none;
  font-size: 0.85rem;
  border-radius: 4px;
  transition: all 0.2s;
  width: fit-content;
}

.footer-cta:hover {
  background-color: var(--infsec-text-primary);
  color: var(--infsec-bg);
}

.footer-copyright {
  color: var(--infsec-text-secondary);
  font-size: 0.75rem;
  margin-top: 1rem;
}

.footer-links,
.footer-social {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links h4,
.footer-social h4 {
  color: var(--infsec-text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.footer-links a,
.footer-social a {
  color: var(--infsec-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-links a:hover,
.footer-social a:hover {
  color: var(--infsec-text-primary);
}

.social-icon {
  width: 18px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
}

@media (max-width: 768px) {
  .footer-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}