:root {
  --bg-primary: #0d1117;
  --bg-card: #161b22;
  --accent-primary: #58a6ff;
  --accent-secondary: #3fb950;
  --text-primary: #c9d1d9;
  --text-muted: #8b949e;
  --border-color: #30363d;
  --font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --transition-base: all 0.3s ease;
  --glow-primary: 0 0 20px rgba(88, 166, 255, 0.15);
  --glow-secondary: 0 0 20px rgba(63, 185, 80, 0.15);
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
}

.navbar {
  background-color: var(--bg-primary) !important;
  border-bottom-color: var(--border-color) !important;
  backdrop-filter: blur(12px);
  padding: 0.75rem 0;
}

.navbar-brand {
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.navbar-brand .bi-controller {
  color: var(--accent-primary);
}

.hero-section {
  background: linear-gradient(135deg, #0d1117 0%, #161b22 40%, #0d1117 100%);
  padding: 5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(88, 166, 255, 0.04) 0%, transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(63, 185, 80, 0.04) 0%, transparent 50%);
  pointer-events: none;
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0.75rem auto 0;
  position: relative;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  transition: var(--transition-base);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: var(--glow-primary);
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.card-text {
  color: var(--text-muted);
  font-size: 0.925rem;
}

.category-icon {
  font-size: 2rem;
  color: var(--accent-primary);
  display: block;
  margin-bottom: 0.75rem;
}

.card-link {
  text-decoration: none;
  color: inherit;
}

.card-link:hover {
  color: inherit;
}

.card-link:hover .card-title {
  color: var(--accent-primary);
}

.post-card .card {
  height: 100%;
}

.post-card .card-footer {
  background: transparent;
  border-top: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.ad-container {
  background: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 2rem 0;
}

.site-footer {
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 0;
  margin-top: 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--accent-primary);
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-disclaimer {
  text-align: center;
  font-size: 0.825rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 0.75rem;
  line-height: 1.5;
}

.footer-copyright {
  text-align: center;
  font-size: 0.85rem;
}

.delete-account-btn {
  font-size: 0.8rem;
}

.breadcrumb {
  background: transparent;
  padding: 0.5rem 0;
}

.breadcrumb-item a {
  color: var(--accent-primary);
  text-decoration: none;
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: var(--text-muted);
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--text-muted);
}

.spinner-border {
  color: var(--accent-primary) !important;
}

.post-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-primary);
}

.post-body h2, .post-body h3 {
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.post-body p {
  margin-bottom: 1rem;
}

.post-body img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.5rem 0;
}

.post-body ul, .post-body ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.post-body code {
  background: var(--bg-card);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
  border: 1px solid var(--border-color);
}

.post-body pre {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.post-body blockquote {
  border-left: 3px solid var(--accent-primary);
  padding-left: 1rem;
  margin: 1.5rem 0;
  color: var(--text-muted);
}

.post-body a {
  color: var(--accent-primary);
}

.btn-outline-secondary {
  color: var(--text-muted);
  border-color: var(--border-color);
}

.btn-outline-secondary:hover {
  background-color: var(--bg-card);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.error-page h1 {
  font-size: 6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.error-page p {
  color: var(--text-muted);
  font-size: 1.15rem;
}

.offcanvas {
  background-color: var(--bg-primary);
}

.offcanvas .offcanvas-header {
  background-color: var(--bg-card);
}

.offcanvas .list-group-item {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.offcanvas .list-group-item:hover {
  background-color: var(--bg-card);
  color: var(--accent-primary);
}

.offcanvas .btn-close {
  filter: invert(0.8);
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-section {
    padding: 3rem 0 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .post-body {
    font-size: 1rem;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 1.65rem;
  }

  .card-body {
    padding: 1.15rem;
  }
}