:root {
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --accent-color: #B6000F;
  --spacing-unit: 1rem;
  --max-width: 800px;

  /* Light Theme */
  --bg-color: #ffffff;
  --text-color: #1a1a1a;
  --muted-color: #666666;
  --border-color: #eeeeee;
  --code-bg: #f8f8f8;
}

[data-theme="dark"] {
  --bg-color: #121212;
  --text-color: #e0e0e0;
  --muted-color: #999999;
  --border-color: #333333;
  --code-bg: #1e1e1e;
}

@font-face {
  font-family: 'fontawesome-stripped';
  src: url('../fonts/fontawesome-stripped.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}

[class^="font-awesome-"], [class*=" font-awesome-"] {
  font-family: 'fontawesome-stripped';
  font-weight: normal;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
}

.font-awesome-camera:before { content: '\e801'; }
.font-awesome-linkedin:before { content: '\f0e1'; }
.font-awesome-list:before { content: '\f0ca'; }
.font-awesome-resume:before { content: '\f1ea'; }

html {
  scrollbar-gutter: stable;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  margin: 0;
  padding: 0;
  transition: background-color 0.3s ease, color 0.3s ease;
  font-variant-ligatures: common-ligatures;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  text-underline-offset: 0.2rem;
}

a:hover {
  text-decoration: underline;
}

.site-header, main, .site-footer {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.site-header, .site-footer {
  padding: var(--spacing-unit);
}

main {
  padding: 0 var(--spacing-unit);
  flex: 1; /* Pushes footer to bottom if content is short */
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--spacing-unit);
}

.site-title {
  font-size: 19px;
  font-weight: 700;
  color: #ffffff;
  background-color: var(--accent-color);
  padding: 4px 8px 5px 8px;
  border-radius: 2px;
  transition: all 100ms ease-in;
  display: inline-block;
  line-height: 1;
  margin: 0;
}

.site-title:hover {
  color: var(--accent-color);
  background-color: rgba(204, 51, 63, 0.1);
  text-decoration: none;
}

/* Header Extra Links */
.extra {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 0.8rem;
}

.extra li a {
  color: #aaa;
  font-size: 1.2rem;
  transition: color 0.2s ease;
}

.extra li a:hover {
  color: var(--accent-color);
  text-decoration: none;
}

.site-footer {
  margin-top: calc(var(--spacing-unit) * 2);
  border-top: 1px solid var(--border-color);
  color: var(--muted-color);
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-footer p {
  margin: 0;
}

/* Home Page */
.hero {
  margin: var(--spacing-unit) 0;
  padding: 0;
}

.hero h1 {
  font-size: 2rem;
  margin: 0 0 0.5rem 0;
}

section {
  margin-top: calc(var(--spacing-unit) * 1.5);
}

section h2 {
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-color);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.25rem;
  margin-bottom: 0.75rem;
}

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

.post-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.5rem;
}

.post-date {
  color: var(--muted-color);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}

/* Post Content */
article {
  padding: var(--spacing-unit) 0;
  margin: 0;
}

.article-header {
  margin: 0 0 2rem 0;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--border-color);
}

.translation-hint {
  margin: -1rem 0 2rem 0;
  font-size: 0.9rem;
  color: var(--muted-color);
  font-style: italic;
}

article h1 {
  font-size: 2rem;
  margin: 0;
  padding: 0;
  line-height: 1.2;
}

.content {
  margin: 0;
  padding: 0;
}

.content p {
  margin: 0 0 1rem 0;
  padding: 0;
  text-wrap: pretty;
}

/* Blockquotes */
.content blockquote {
  margin: 0.75rem 0;
  padding: 0.75rem 1.25rem;
  border-left: 4px solid var(--accent-color);
  background-color: rgba(182, 0, 15, 0.05);
  border-radius: 5px;
  font-style: italic;
  color: var(--text-color);
}

.content blockquote p {
  margin: 0;
}

/* Tables */
.content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 0.75rem 0;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  overflow: hidden;
}

.content th, .content td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
}

.content th {
  background-color: var(--accent-color);
  font-weight: 600;
  color: #ffffff;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: none;
}

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

.content th:last-child, .content td:last-child {
  border-right: none;
}

.content tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.02);
}

[data-theme="dark"] .content tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02);
}

.content figure {
  margin: var(--spacing-unit) 0;
}

.content img {
  max-width: 100%;
  height: auto;
  border-radius: 5px;
}

.content video {
  max-width: 100%;
  height: auto;
  border-radius: 5px;
}

pre {
  background-color: var(--code-bg);
  padding: 1rem;
  overflow-x: auto;
  border-radius: 5px;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, "JetBrains Mono", "Cascadia Code", Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 90%;
  font-weight: 500;
  background-color: var(--code-bg);
  padding: 0.2rem 0.4rem;
  border-radius: 5px;
}

/* Theme Toggle */
.theme-switcher {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-switcher svg {
  width: 16px;
  height: 16px;
  fill: var(--muted-color);
  flex-shrink: 0;
  transition: fill 0.3s ease;
}

.toggle-track {
  width: 44px;
  height: 24px;
  background-color: var(--border-color);
  border-radius: 12px;
  cursor: pointer;
  position: relative;
  transition: background-color 0.3s ease;
  border: none;
  outline: none;
  padding: 0;
}

.toggle-track:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

.toggle-knob {
  width: 18px;
  height: 18px;
  background-color: var(--bg-color);
  border-radius: 50%;
  position: absolute;
  top: 3px;
  left: 3px;
  transition: transform 0.3s ease, background-color 0.3s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

[data-theme="dark"] .toggle-knob {
  transform: translateX(20px);
}

[data-theme="dark"] .theme-switcher svg:last-child {
  fill: var(--text-color);
}

[data-theme="light"] .theme-switcher svg:first-child {
  fill: var(--text-color);
}

/* Syntax Highlighting (Chroma) */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: calc(var(--spacing-unit) * 2);
  gap: 1.5rem;
}

.pagination-btn {
  background-color: var(--code-bg);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 0.5rem 1rem;
  border-radius: 5px;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.pagination-btn:hover {
  background-color: var(--border-color);
  text-decoration: none;
}

.pagination-info {
  font-size: 0.9rem;
  color: var(--muted-color);
}

/* Syntax Highlighting (Chroma) */
.chroma { background-color: var(--code-bg); color: var(--text-color); }
.chroma .k { color: var(--accent-color); }
.chroma .s { color: #2e7d32; }
.chroma .c { color: var(--muted-color); font-style: italic; }

[data-theme="dark"] .chroma .s { color: #81c784; }
[data-theme="dark"] .chroma .k { color: #ff5252; }

.related-posts {
  margin: 2rem 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.related-posts h2 {
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-color);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.25rem;
  margin-bottom: 0.75rem;
}

.post-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  gap: 1rem;
}

.post-nav-prev, .post-nav-next {
  max-width: 48%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.95rem;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

.related-posts {
  margin: 2rem 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.related-posts h2 {
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-color);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.25rem;
  margin-bottom: 0.75rem;
}

.post-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  gap: 1rem;
}

.post-nav-prev, .post-nav-next {
  max-width: 48%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.95rem;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .site-header, .site-footer {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }

  .post-item {
    display: block;
    margin-bottom: 1.25rem;
  }

  .post-item a {
    display: block;
    line-height: 1.3;
    margin-bottom: 0.25rem;
  }

  .post-date {
    display: block;
    font-size: 0.85rem;
  }
}