/* ============================================
   ZAPISKI NA ODWROCIE — Retro Terminal Theme
   ============================================ */

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #1c2333;
  --bg-card: #161b22;

  --text-primary: #c9d1d9;
  --text-secondary: #8b949e;
  --text-heading: #e6edf3;

  --accent-green: #00ff41;
  --accent-green-dim: #00cc33;
  --accent-green-glow: rgba(0, 255, 65, 0.15);
  --accent-amber: #ffb000;
  --accent-amber-dim: #cc8d00;

  --border-color: #30363d;
  --border-green: rgba(0, 255, 65, 0.3);

  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'SF Mono', 'Consolas', monospace;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

  --content-max: 1120px;
  --sidebar-width: 280px;
  --gap: 24px;
}

/* === RESET === */

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

/* === SCANLINES OVERLAY === */

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
}

/* === BASE === */

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-green);
  text-decoration: none;
  transition: color 0.2s, text-shadow 0.2s;
}

a:hover {
  color: #33ff66;
  text-shadow: 0 0 8px var(--accent-green-glow);
}

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

/* === SITE WRAPPER === */

.site-wrapper {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gap);
}

/* === HEADER === */

.site-header {
  padding: 24px 0;
  margin-bottom: 32px;
  border-bottom: 1px dashed var(--border-color);
}

.site-header .header-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gap);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-green);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.site-logo:hover {
  color: #33ff66;
  text-shadow: 0 0 12px var(--accent-green-glow);
}

.site-logo .cursor {
  display: inline-block;
  width: 10px;
  height: 1.2em;
  background: var(--accent-green);
  margin-left: 4px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.site-logo .prompt {
  color: var(--text-secondary);
  font-weight: 400;
}

.site-nav {
  display: flex;
  gap: 8px;
  align-items: center;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 4px 10px;
  border: 1px dashed transparent;
  transition: all 0.2s;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--accent-green);
  border-color: var(--border-green);
  text-shadow: 0 0 8px var(--accent-green-glow);
}

.site-nav a::before {
  content: '> ';
  color: var(--accent-green-dim);
}

/* === LAYOUT: CONTENT + SIDEBAR === */

.content-wrapper {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

.main-content {
  flex: 1;
  min-width: 0;
}

/* === SIDEBAR === */

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  position: sticky;
  top: 24px;
}

.sidebar-section {
  margin-bottom: 32px;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px dashed var(--border-color);
}

.sidebar-section h3 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-amber);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border-color);
}

.sidebar-section h3::before {
  content: '# ';
  color: var(--text-secondary);
}

.sidebar-about p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Tag cloud */

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-cloud a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-amber);
  background: var(--bg-tertiary);
  padding: 3px 8px;
  border: 1px solid var(--border-color);
  transition: all 0.2s;
  white-space: nowrap;
}

.tag-cloud a:hover {
  color: var(--bg-primary);
  background: var(--accent-amber);
  border-color: var(--accent-amber);
  text-shadow: none;
}

.tag-cloud a .tag-count {
  color: var(--text-secondary);
  font-size: 0.65rem;
  margin-left: 2px;
}

.tag-cloud a:hover .tag-count {
  color: var(--bg-primary);
}

/* === PAGE TITLE === */

.page-title {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--text-heading);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--border-color);
}

.page-title .prompt {
  color: var(--accent-green-dim);
}

/* === CARD GRID === */

.post-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
}

.post-card:hover {
  border-color: var(--accent-green-dim);
  box-shadow: 0 0 20px var(--accent-green-glow),
              inset 0 0 20px rgba(0, 255, 65, 0.03);
}

.post-card-image {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-tertiary);
  position: relative;
}

.post-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s, filter 0.3s;
  filter: saturate(0.8);
}

.post-card:hover .post-card-image img {
  transform: scale(1.03);
  filter: saturate(1);
}

/* Placeholder when no image */
.post-card-image.no-image {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
}

.post-card-image.no-image::after {
  content: '> NO_IMAGE';
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  opacity: 0.4;
}

.post-card-body {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-card-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-amber);
  margin-bottom: 6px;
}

.post-card-title {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
}

.post-card-title a {
  color: var(--text-heading);
}

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

.post-card-excerpt {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  flex: 1;
  margin-bottom: 12px;
  /* limit to 3 lines */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: auto;
}

.post-card-tags a {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-amber-dim);
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border: 1px solid var(--border-color);
  transition: all 0.2s;
}

.post-card-tags a:hover {
  color: var(--bg-primary);
  background: var(--accent-amber);
  text-shadow: none;
}

.read-more-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-green-dim);
  margin-top: 8px;
}

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

.read-more-link::before {
  content: '$ ';
}

/* === SINGLE POST === */

.post-hero {
  width: 100%;
  aspect-ratio: 21 / 9;
  overflow: hidden;
  margin-bottom: 24px;
  border: 1px solid var(--border-color);
}

.post-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-header {
  margin-bottom: 32px;
}

.post-header h1 {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.3;
  margin-bottom: 12px;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

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

.post-meta .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.post-meta .tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-amber-dim);
  background: var(--bg-tertiary);
  padding: 2px 8px;
  border: 1px solid var(--border-color);
  transition: all 0.2s;
}

.post-meta .tag:hover {
  color: var(--bg-primary);
  background: var(--accent-amber);
  text-shadow: none;
}

/* Post content typography */

.post-content {
  line-height: 1.8;
  font-size: 1rem;
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
  font-family: var(--font-mono);
  color: var(--text-heading);
  margin-top: 2em;
  margin-bottom: 0.5em;
  line-height: 1.3;
}

.post-content h1 { font-size: 1.5rem; }
.post-content h2 { font-size: 1.3rem; }
.post-content h3 { font-size: 1.15rem; }
.post-content h4 { font-size: 1rem; }

.post-content h2::before {
  content: '## ';
  color: var(--accent-green-dim);
}

.post-content h3::before {
  content: '### ';
  color: var(--accent-green-dim);
}

.post-content p {
  margin-bottom: 1em;
}

.post-content a {
  color: var(--accent-green);
  text-decoration: underline;
  text-decoration-color: var(--accent-green-dim);
  text-underline-offset: 2px;
}

.post-content a:hover {
  text-decoration-color: var(--accent-green);
}

.post-content strong {
  color: var(--text-heading);
  font-weight: 600;
}

.post-content em {
  color: var(--accent-amber);
  font-style: italic;
}

.post-content img {
  max-width: 100%;
  height: auto;
  margin: 1.5em 0;
  border: 1px solid var(--border-color);
}

.post-content figure {
  margin: 1.5em 0;
}

.post-content figcaption {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 8px;
}

/* Code blocks */

.post-content pre {
  background: #010409;
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--accent-green-dim);
  padding: 16px;
  margin: 1.5em 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
}

.post-content :not(pre) > code {
  background: var(--bg-tertiary);
  color: var(--accent-amber);
  padding: 2px 6px;
  border: 1px solid var(--border-color);
}

/* Blockquotes */

.post-content blockquote {
  border-left: 3px solid var(--accent-green-dim);
  padding: 12px 20px;
  margin: 1.5em 0;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-style: italic;
}

.post-content blockquote p:last-child {
  margin-bottom: 0;
}

/* Lists */

.post-content ul,
.post-content ol {
  margin: 1em 0;
  padding-left: 1.5em;
}

.post-content li {
  margin-bottom: 0.3em;
}

.post-content li::marker {
  color: var(--accent-green-dim);
}

/* Tables */

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 0.9rem;
}

.post-content th,
.post-content td {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  text-align: left;
}

.post-content th {
  background: var(--bg-secondary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-amber);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.post-content tr:nth-child(even) {
  background: rgba(22, 27, 34, 0.5);
}

/* Horizontal rules */

.post-content hr {
  border: none;
  border-top: 1px dashed var(--border-color);
  margin: 2em 0;
}

/* Video */

.video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  margin: 1.5em 0;
  border: 1px solid var(--border-color);
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Post navigation */

.post-nav {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px dashed var(--border-color);
}

.post-nav a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-green-dim);
}

.post-nav a::before {
  content: '$ cd ';
}

.post-nav a:hover {
  color: var(--accent-green);
}

/* === 404 === */

.error-404 {
  text-align: center;
  padding: 80px 0;
}

.error-404 .error-ascii {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-green-dim);
  line-height: 1.2;
  margin-bottom: 32px;
  white-space: pre;
  display: inline-block;
  text-align: left;
}

.error-404 h1 {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--accent-amber);
  margin-bottom: 12px;
}

.error-404 p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.error-404 a {
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.error-404 a::before {
  content: '$ ';
}

/* === FOOTER === */

.site-footer {
  margin-top: 48px;
  padding: 20px 0;
  border-top: 1px dashed var(--border-color);
  text-align: center;
}

.site-footer .footer-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gap);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* === SCROLLBAR === */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-green-dim);
}

/* === SELECTION === */

::selection {
  background: var(--accent-green);
  color: var(--bg-primary);
}

/* === LIGHTBOX === */

.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.92);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  animation: lightbox-fade-in 0.2s ease;
}

.lightbox-overlay img {
  max-width: 90vw;
  max-height: 90vh;
  border: 1px solid var(--border-green);
  box-shadow: 0 0 40px var(--accent-green-glow);
}

@keyframes lightbox-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.post-content img {
  cursor: zoom-in;
}

/* === RESPONSIVE === */

@media (max-width: 900px) {
  .content-wrapper {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    position: static;
    order: 2;
  }

  .main-content {
    order: 1;
  }

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

@media (max-width: 640px) {
  :root {
    --gap: 16px;
  }

  .site-header .header-inner {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }

  .site-nav {
    flex-wrap: wrap;
  }

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

  .page-title {
    font-size: 1.1rem;
  }

  .post-header h1 {
    font-size: 1.3rem;
  }

  .post-hero {
    aspect-ratio: 16 / 9;
  }
}