:root {
  --bg-color: #dbdbdb;
  --text-color: #2E2E2E;
  --sidebar-color: #2F2F32;
  --sidebar-text: #FFFFFF;
  --accent-color: #4FB5CC;
  --accent-hover: #66C7DC;
  --border-color: #E5E5E5;
  --text-light: #7A7A7A;
  --card-bg: #FFFFFF;
  --sidebar-link: #B0B0B0;
  --sidebar-link-hover: #FFFFFF;
  --font-display: 'League Gothic', 'Arial Narrow', 'Impact', sans-serif;
  --font-serif: 'Merriweather', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --sidebar-width: 280px;
  --topbar-height: 56px;
  --content-max-width: 720px;
  --content-padding: 2rem;
  --radius: 6px;
  --transition: 0.3s ease;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--text-color);
  background: var(--bg-color);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  padding-left: 1.5rem;
}

.topbar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-height);
  background: var(--sidebar-color);
  color: var(--sidebar-text);
  z-index: 1000;
  align-items: center;
  padding: 0 1rem;
}

.sidebar-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  justify-content: center;
}

.sidebar-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--sidebar-text);
  border-radius: 2px;
  transition: var(--transition);
}

.topbar-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--accent-color);
  margin-left: 0.5rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  height: 100dvh;
  background: linear-gradient(180deg, #2F2F32 0%, #26282D 100%);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  padding: 2rem 1.75rem;
  overflow-y: auto;
  z-index: 1100;
  transition: transform var(--transition);
}

.sidebar-close {
  display: none;
  position: absolute;
  top: 0.75rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--sidebar-text);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

.sidebar-brand {
  margin-bottom: 2rem;
}

.sidebar-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--accent-color);
  letter-spacing: 1px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.75rem;
  line-height: 1.1;
}

.sidebar-title:hover {
  color: var(--accent-hover);
}

.sidebar-verse {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--sidebar-link);
  font-style: italic;
  border-left: 2px solid var(--accent-color);
  padding-left: 1rem;
}

.sidebar-nav {
  flex: 1;
}

.sidebar-nav ul {
  list-style: none;
  padding: 0;
}

.sidebar-nav li {
  margin-bottom: 0.25rem;
}

.sidebar-nav a {
  display: block;
  padding: 0.5rem 0.75rem;
  color: var(--sidebar-link);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.sidebar-nav a:hover {
  color: var(--sidebar-link-hover);
  background: rgba(255, 255, 255, 0.08);
}

.sidebar-nav a.active {
  color: var(--sidebar-link-hover);
  background: rgba(255, 255, 255, 0.1);
  border-left: 3px solid var(--accent-color);
}

.sidebar-social {
  display: flex;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  margin-top: auto;
}

.sidebar-social a {
  color: var(--sidebar-link);
  transition: color var(--transition);
  display: flex;
  align-items: center;
}

.sidebar-social a:hover {
  color: var(--sidebar-link-hover);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1050;
}

.content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  padding: var(--content-padding);
  padding-top: calc(var(--content-padding) + 1rem);
  max-width: calc(var(--sidebar-width) + var(--content-max-width) + var(--content-padding) * 2);
}

.footer {
  margin-left: var(--sidebar-width);
  padding: 1.5rem var(--content-padding);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-light);
  border-top: 1px solid var(--border-color);
}

.footer a {
  color: var(--accent-color);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
  line-height: 1.1;
  color: var(--text-color);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.4rem; }
h3 { font-size: 1.7rem; }
h4 { font-size: 1.3rem; }

p {
  margin-bottom: 1.25rem;
}

.post-content, .page-content, .featured-post-excerpt, .about-content {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.85;
}

.post-content p, .page-content p {
  margin-bottom: 1.4rem;
}

.post-content blockquote {
  border-left: 3px solid var(--accent-color);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
  color: var(--text-light);
  font-style: italic;
}

.post-content blockquote p {
  margin-bottom: 0.5rem;
}

.home-hero {
  text-align: center;
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2.5rem;
}

.home-hero-title {
  font-family: var(--font-display);
  font-size: 8rem;
  font-weight: 400;
  margin: 0 0 0.25rem;
  border: none;
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 0.1px;
  line-height: 1;
}

.home-hero-subtitle {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: #5A5A5A;
  margin-top: 0.75rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  text-transform: uppercase;
  line-height: 1.2;
}

.home-section {
  margin-bottom: 2.5rem;
}

.home-section-title {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin: 0 0 1.25rem;
  border: none;
  color: var(--text-light);
}

.featured-post {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.featured-post-title {
  margin: 0 0 0.5rem;
}

.featured-post-title a {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-color);
  line-height: 1.1;
}

.featured-post-title a:hover {
  color: var(--accent-color);
}

.featured-post-meta {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 1rem;
}

.featured-post-meta a {
  color: var(--accent-color);
}

.featured-post-excerpt {
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 0.75rem;
}

.read-more {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-color);
  display: inline-block;
}

.read-more:hover {
  color: var(--accent-hover);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.featured-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.featured-card-title {
  margin: 0 0 0.5rem;
}

.featured-card-title a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-color);
  line-height: 1.1;
}

.featured-card-title a:hover {
  color: var(--accent-color);
}

.featured-card-meta {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 0.75rem;
}

.featured-card-excerpt {
  font-family: var(--font-serif);
  font-size: 0.92rem;
  line-height: 1.6;
  flex: 1;
  margin-bottom: 0.75rem;
}

.home-archive-link {
  text-align: center;
}

.post-header {
  margin-bottom: 2rem;
}

.post-title {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 0.75rem;
  border: none;
  line-height: 1.1;
}

.post-meta {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--text-light);
}

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

.post-separator {
  margin: 0 0.5rem;
  color: var(--border-color);
}

.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.post-nav-link {
  flex: 1;
  max-width: 50%;
  padding: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.post-nav-link:hover {
  border-color: var(--accent-color);
  background: var(--bg-color);
}

.post-nav-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-light);
  margin-bottom: 0.25rem;
}

.post-nav-title {
  display: block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-color);
}

.post-nav-next {
  text-align: right;
}

.page-header {
  margin-bottom: 2rem;
}

.page-title {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0;
  border: none;
  line-height: 1.1;
}

.page-description {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

.about-section {
  margin-bottom: 2.5rem;
}

.about-section h2 {
  border: none;
  margin-top: 0;
}

.about-section ul {
  padding-left: 1.5rem;
}

.about-section li {
  margin-bottom: 0.5rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.7;
}

.materials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.material-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}

.material-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.material-card-icon {
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.material-card-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 0.75rem;
}

.material-card-desc {
  font-family: var(--font-serif);
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-light);
  flex: 1;
  margin-bottom: 1.25rem;
}

.material-card-btn {
  align-self: flex-start;
}

.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.65rem 1.5rem;
  background: var(--accent-color);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  text-decoration: none;
}

.btn:hover {
  background: var(--accent-hover);
  color: #fff;
}

.archive-list {
  list-style: none;
  padding: 0;
}

.archive-year {
  margin-bottom: 2.5rem;
}

.archive-year-title {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 1rem;
  border: none;
  color: var(--text-color);
  line-height: 1.1;
}

.archive-months {
  list-style: none;
  padding: 0;
}

.archive-month {
  margin-bottom: 1.5rem;
}

.archive-month-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 0.75rem;
  color: var(--accent-color);
  border: none;
}

.archive-posts {
  list-style: none;
  padding: 0;
}

.archive-post-item {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-serif);
}

.archive-post-item:last-child {
  border-bottom: none;
}

.archive-post-date {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--text-light);
  margin-right: 0.75rem;
  min-width: 2rem;
  display: inline-block;
}

.archive-post-item a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent-color);
}

.archive-post-item a:hover {
  color: var(--accent-hover);
}

.archive-post-author {
  font-size: 0.88rem;
  color: var(--text-light);
  font-style: italic;
}

.author-header {
  text-align: center;
  margin-bottom: 2rem;
}

.author-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1rem;
  background: var(--border-color);
}

.author-name {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 0.25rem;
  border: none;
  line-height: 1.1;
}

.author-role {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-light);
  margin: 0;
}

.author-bio {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto 2rem;
  text-align: center;
}

.author-bio ul,
.author-bio ol {
  text-align: left;
  padding-left: 1.5rem;
}

.author-posts h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: none;
  margin-bottom: 1rem;
}

.post-list {
  list-style: none;
  padding: 0;
}

.post-list-item {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.post-list-item:last-child {
  border-bottom: none;
}

.post-list-item a {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent-color);
}

.post-list-item a:hover {
  color: var(--accent-hover);
}

.post-list-date {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--text-light);
}

.error-page {
  text-align: center;
  padding: 4rem 0;
}

.error-page h1 {
  font-size: 5rem;
  color: var(--accent-color);
  border: none;
  margin-bottom: 0.5rem;
}

.error-page p {
  font-size: 1.1rem;
  color: var(--text-light);
}

@media (max-width: 1024px) {
  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .materials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .topbar {
    display: flex;
  }

  body {
    padding-top: var(--topbar-height);
  }

  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-close {
    display: block;
  }

  .sidebar-overlay.open {
    display: block;
  }

  .content {
    margin-left: 0;
    padding: 1.25rem;
  }

  .footer {
    margin-left: 0;
    padding: 1rem 1.25rem;
  }

  .featured-grid {
    grid-template-columns: 1fr;
  }

  .materials-grid {
    grid-template-columns: 1fr;
  }

  .home-hero {
    padding: 1.5rem 0;
  }

  .home-hero-title {
    font-size: 3.2rem;
  }

  .home-hero-subtitle {
    font-size: 1.2rem;
  }

  .post-title {
    font-size: 2rem;
  }

  .page-title {
    font-size: 2rem;
  }

  .post-nav {
    flex-direction: column;
  }

  .post-nav-link {
    max-width: 100%;
  }

  .post-content, .page-content, .featured-post-excerpt {
    font-size: 1rem;
  }

  .post-list-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .material-card {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  :root {
    --content-padding: 1rem;
  }

  .home-hero-title {
    font-size: 2.6rem;
  }

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

  .post-title {
    font-size: 1.6rem;
  }

  .page-title {
    font-size: 1.6rem;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  h3 { font-size: 1.3rem; }
}