/**
 * Unified CSS Components
 * Combines all component styles in a single file
 * 
 * Note: Variables are now loaded separately in the HTML head
 * instead of being imported here for better performance.
 */

/**
 * Base styles - Variables and resets
 */

/* Reset styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  height: 100%;
}

body {
  font-family: var(--font-sans);
  line-height: 1.7;
  color: var(--text-color);
  background-color: var(--background-color);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

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

/* Dark mode overrides */
.dark-mode {
  /* Переменные уже переопределены в generated.css в селекторе .dark-mode */
} 

/* Override styles for post pages in dark mode */
.dark-mode.post-page header {
  background-color: var(--background-color) !important;
}

.dark-mode.post-page .post-header {
  background-color: var(--background-color) !important;
}

/**
 * Typography styles - Headings, paragraphs, links and text utilities
 */

/* Headings */
h1, h2, h3, h4, h5, h6 {
  margin: var(--space-lg) 0 var(--space-sm);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2.5rem;
  margin-top: 0;
  letter-spacing: -0.03em;
}

h2 {
  font-size: 1.75rem;
  margin-top: var(--space-xl);
}

h3 {
  font-size: 1.35rem;
  margin-top: var(--space-lg);
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.125rem;
}

h6 {
  font-size: 1rem;
}

/* Text elements */
p {
  margin-bottom: var(--space-md);
}

strong, b {
  font-weight: 600;
}

em, i {
  font-style: italic;
}

small {
  font-size: 0.875em;
}

blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 4px solid var(--accent-color);
  background-color: var(--surface-color);
  color: var(--secondary-color);
  font-style: italic;
  border-radius: var(--radius-sm);
}

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

/* Links */
a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-weight: 500;
}

a:hover {
  color: #1d4ed8; /* Darker blue on hover */
  text-decoration: none;
}

/* Lists */
ul, ol {
  margin: 0 0 var(--space-md) var(--space-md);
}

li {
  margin-bottom: var(--space-xs);
}

/* Tables */
table {
  width: 100%;
  margin: var(--space-md) 0;
  border-collapse: collapse;
  border-radius: var(--radius-md);
  overflow: hidden;
  font-size: 0.9em;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* Create a responsive table container for mobile */
.post-content table {
  display: block;
  overflow-x: auto;
  white-space: nowrap;
  max-width: 100%;
}

/* Allow tables to scroll horizontally on small screens */
@media (min-width: 768px) {
  .post-content table {
    display: table;
    white-space: normal;
  }
}

table th {
  background-color: var(--surface-color);
  color: var(--heading-color);
  font-weight: 600;
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 2px solid var(--border-color);
}

table td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border-color);
}

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

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

.dark-mode table th {
  background-color: rgba(255, 255, 255, 0.05);
}

.dark-mode table tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02);
}

table th[align="center"],
table td[align="center"] {
  text-align: center;
}

table th[align="right"],
table td[align="right"] {
  text-align: right;
}

/* Code */
code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 0.2em 0.4em;
  background-color: rgba(0, 0, 0, 0.05);
  border-radius: var(--radius-sm);
}

.dark-mode code {
  background-color: rgba(255, 255, 255, 0.1);
}

pre {
  background-color: #1e1e1e;
  color: #e2e8f0;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--space-md) 0;
  font-family: var(--font-mono);
  font-size: 0.9em;
  line-height: 1.5;
}

pre code {
  background-color: transparent;
  padding: 0;
  color: inherit;
}

/* Text utilities */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

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

.text-sm {
  font-size: 0.875rem;
}

.text-lg {
  font-size: 1.125rem;
}

.text-xl {
  font-size: 1.25rem;
}

.text-2xl {
  font-size: 1.5rem;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/**
 * Layout styles - Containers, grids, and layout components
 */

/* Container for content centering */
.container {
  width: 100%;
  max-width: 768px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

@media (min-width: 1024px) {
  .container {
    max-width: 960px; /* 25% wider than 768px */
  }
}

/* Flexbox utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-row {
  flex-direction: row;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-center {
  justify-content: center;
}

/* Grid layouts */
.grid {
  display: grid;
  gap: var(--space-md);
}

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

@media (min-width: 640px) {
  .grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Header layout */
header {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--space-lg);
  position: sticky;
  top: 0;
  background-color: var(--surface-color);
  z-index: 100;
  width: 100%;
  transition: background-color var(--transition-normal), 
              border-color var(--transition-normal), 
              box-shadow var(--transition-normal),
              border-bottom 0.15s ease;
}

@media (max-width: 768px) {
  header {
    position: relative; /* Override sticky positioning on mobile */
    top: auto;
  }
}

/* Class to apply when header is in scrolled state */
header.scrolled {
  border-bottom: none;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

/* Class to apply when article title overlaps with header - use background color */
header.title-overlap {
  border-bottom: none;
  background-color: var(--background-color);
  box-shadow: none;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.dark-mode header.title-overlap {
  background-color: var(--background-color);
  box-shadow: none;
}

.dark-mode header.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

/* Header and Navigation */
header nav.container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 768px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

@media (min-width: 1024px) {
  header nav.container {
    max-width: 960px;
    padding: 0 var(--space-md);
  }
}

.logo {
  flex-shrink: 0;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  color: var(--text-color);
}

.nav-links {
  margin-left: auto;
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.nav-link {
  color: var(--text-color);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--accent-color);
}

.theme-toggle-container {
  margin-left: var(--space-sm);
  display: flex;
  justify-content: flex-end;
}

@media (max-width: 768px) {
  header nav.container {
    flex-wrap: wrap;
  }
  
  .nav-links {
    order: 3;
    width: 100%;
    justify-content: flex-end;
    margin-top: var(--space-sm);
  }
  
  .theme-toggle-container {
    margin-left: 0;
  }
}

/* Main content area */
main {
  flex: 1;
  padding: var(--space-md) 0 var(--space-xl);
}

/* Footer layout */
footer {
  padding: var(--space-lg) 0;
  background-color: var(--surface-color);
  border-top: 1px solid var(--border-color);
  margin-top: auto;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-links a {
  color: var(--text-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

@media (max-width: 640px) {
  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Posts list */
.posts-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.posts-list .page-title {
  margin-bottom: var(--space-lg);
  font-size: 2.5rem;
  letter-spacing: -0.02em;
}

/* Site description styling */
.site-description {
  font-size: 0.9rem;
  color: var(--secondary-color);
  margin-top: -0.25rem;
  font-weight: normal;
}

@media (max-width: 640px) {
  .site-description {
    font-size: 0.8rem;
  }
}

/* Header styles for post pages */
.post-page header {
  background-color: var(--background-color) !important;
  border-bottom: none;
}

.post-page header.scrolled {
  background-color: var(--background-color) !important;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

/* Высокоспецифичный селектор для header в темной теме на страницах постов */
html .dark-mode.post-page header,
html body.dark-mode.post-page header,
.dark-mode.post-page header {
  background-color: var(--background-color) !important;
}

.dark-mode.post-page header.scrolled {
  background-color: var(--background-color) !important;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

/**
 * UI Components - Buttons, cards, forms, and other UI elements
 */

/* Buttons */
.button, button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs) var(--space-md);
  background-color: var(--accent-color);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  text-decoration: none;
}

.button:hover, button:hover {
  background-color: #1d4ed8;
  transform: translateY(-1px);
}

.button:active, button:active {
  transform: translateY(0);
}

.button-secondary {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-color);
}

.button-secondary:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

.dark-mode .button-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.button-sm {
  padding: calc(var(--space-xs) / 2) var(--space-sm);
  font-size: 0.875rem;
}

.button-lg {
  padding: var(--space-sm) var(--space-lg);
  font-size: 1.125rem;
}

/* Cards */
.card {
  background-color: var(--surface-color);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  padding: var(--space-md);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.dark-mode .card {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.dark-mode .card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Post cards */
.post-card {
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  background-color: var(--surface-color);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.post-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.dark-mode .post-card {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.dark-mode .post-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.post-card h2 {
  margin-top: 0;
  margin-bottom: var(--space-xs);
  font-size: 1.75rem;
}

.post-card h2 a {
  color: var(--heading-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.post-card h2 a:hover {
  color: var(--accent-color);
}

.post-card .post-meta {
  margin-bottom: var(--space-sm);
  font-size: 0.875rem;
  color: var(--secondary-color);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.post-card .post-summary {
  margin-top: var(--space-sm);
  margin-bottom: var(--space-md);
  color: var(--text-color);
}

.post-card .post-tags {
  margin-top: var(--space-md);
}

/* Post content */
.post {
  margin-bottom: var(--space-xl);
}

/* Post header styling with background color matching the page */
.post-header {
  margin-bottom: var(--space-lg);
  background-color: var(--background-color) !important;
}

.post-header h1 {
  margin-bottom: var(--space-xs);
}

.post-meta {
  color: var(--secondary-color);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: 0.875rem;
}

.post-content {
  word-wrap: break-word;
}

.post-content > *:first-child {
  margin-top: 0;
}

/* Tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin: var(--space-sm) 0;
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--accent-color);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  transition: background-color var(--transition-fast);
  text-decoration: none;
}

.tag:hover {
  background-color: rgba(59, 130, 246, 0.2);
  color: var(--accent-color);
}

.dark-mode .tag {
  background-color: rgba(59, 130, 246, 0.2);
}

.dark-mode .tag:hover {
  background-color: rgba(59, 130, 246, 0.3);
}

/* Tags page specific styles */
.tags-page {
  padding: var(--space-md) 0;
}

.tags-page .tags {
  margin-top: var(--space-md);
}

.tags-page .page-title {
  margin-bottom: var(--space-md);
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: calc(var(--space-lg) / 3);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.pagination-counter {
  font-size: 0.875rem;
  color: var(--secondary-color);
}

.pagination-item {
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
  font-weight: 500;
  color: var(--text-color);
}

.pagination-item:hover:not(.disabled):not(.pagination-current) {
  background-color: rgba(0, 0, 0, 0.05);
}

.dark-mode .pagination-item:hover:not(.disabled):not(.pagination-current) {
  background-color: rgba(255, 255, 255, 0.1);
}

.pagination-current {
  background-color: var(--accent-color);
  color: white;
}

.pagination-prev, .pagination-next {
  font-weight: 500;
}

.disabled {
  color: var(--secondary-color);
  cursor: not-allowed;
  opacity: 0.5;
}

/* Theme toggle */
.theme-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-color);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.theme-toggle:hover {
  background-color: rgba(0, 0, 0, 0.05);
  transform: none;
}

.dark-mode .theme-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Table of contents */
.table-of-contents {
  background-color: var(--surface-color);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin: var(--space-lg) 0;
  border: 1px solid var(--border-color);
}

.table-of-contents h3 {
  margin-top: 0;
  margin-bottom: var(--space-sm);
  font-size: 1.125rem;
}

.table-of-contents ul {
  margin-bottom: 0;
  list-style-type: none;
  padding-left: 0;
}

.table-of-contents li {
  margin-bottom: calc(var(--space-xs) / 2);
}

.table-of-contents a {
  color: var(--text-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.table-of-contents a:hover {
  color: var(--accent-color);
}

/* Transparent post header for post pages */
.post-page article,
.post-page .post,
.post-page .post-header {
  background-color: transparent !important;
  background: none !important;
}

.post-page .post-header {
  padding: 4rem 0 2rem;
  margin-top: -4rem; /* Negative margin to overlap with the top of the page */
  position: relative;
  z-index: 1;
  background-color: transparent;
}

.post-page .post-header h1 {
  color: var(--text-color);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  position: relative;
  z-index: 2;
}

.post-page .post-meta {
  color: var(--secondary-color);
  position: relative;
  z-index: 2;
}

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

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

/* Dark mode styles */
.dark-mode.post-page .post-header h1 {
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* Additional styles to ensure header background is transparent */
.post-page article::before,
.post-page .post::before,
.post-page .post-header::before {
  content: none !important;
}

.post-page article::after,
.post-page .post::after,
.post-page .post-header::after {
  content: none !important;
} 

/* Lightbox for images */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-img {
  max-width: 90%;
  max-height: 90%;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s ease;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background-color: rgba(0, 0, 0, 0.5);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 24px;
  line-height: 34px;
  text-align: center;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.lightbox-close:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

/* Make post content images clickable */
.post-content figure img {
  cursor: zoom-in;
}