:root {
    --accent-color: #2196f3;
    --card-bg: #f8f9fa;
    --bg-secondary: #e9ecef;
    --text-muted: #6c757d;
}
/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.single-note-page * {
    margin: revert;
    padding: revert;
    box-sizing: revert;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
/* Header */
.site-header {
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1rem 0;
}
.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.site-title {
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    color: #333;
}
/* Navigation */
.site-nav {
    display: flex;
    gap: 2rem;
}
.nav-link {
    text-decoration: none;
    color: #666;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: #007bff;
}
/* Hero section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}
/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    transition: all 0.2s ease;
}
.btn-primary {
    background: #2196f3;
    color: white;
}
.btn-primary:hover {
    background: #1976d2;
}
.btn-secondary {
    background: #f5f5f5;
    color: #666;
    border: 1px solid #ddd;
}
.btn-secondary:hover {
    background: #e0e0e0;
}
/* Стили для кнопок */
.btn-success {
    background: #28a745;
    color: white;
    border: none;
}

.btn-success:hover {
    background: #218838;
}

.btn-warning {
    background: #ffc107;
    color: #212529;
    border: none;
}

.btn-warning:hover {
    background: #e0a800;
}
/* Features */
.features {
    padding: 4rem 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
/* About page */
.about-page {
    padding: 2rem 0;
}
.page-title {
    text-align: center;
    margin-bottom: 1rem;
    color: var(--accent-color);
    font-size: 2.5rem;
    font-weight: 700;
}
.about-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.about-section {
    margin-bottom: 3rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
}

.about-section h2 {
    color: var(--accent-color);
    margin-top: 0;
    margin-bottom: 1rem;
}

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

.about-section li {
    margin-bottom: 0.5rem;
}

.cta-section {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--bg-secondary) 100%);
    border-radius: 16px;
    border: 2px dashed var(--accent-color);
}

.cta-note {
    margin-top: 1rem;
    font-style: italic;
    color: var(--text-muted);
}
/* Стили для заголовка прогресса */
.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.progress-stats {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: white;
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.progress-bar {
    width: 200px;
    height: 12px;
    background: #f0f0f0;
    border-radius: 6px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4caf50, #45a049);
    border-radius: 6px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-fill.halfway {
    background: linear-gradient(90deg, #ff9800, #ff5722);
}

.progress-fill.complete {
    background: linear-gradient(90deg, #2196f3, #1976d2);
}

.progress-text {
    font-weight: 600;
    color: #333;
    min-width: 120px;
}

.reset-progress-btn {
    padding: 0.5rem 1rem;
    background: #ff4757;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.2s ease;
}

.reset-progress-btn:hover {
    background: #ff3742;
}

/* Site Footer */
.site-footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: #ecf0f1;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
    border-top: 4px solid #2196f3;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: #2196f3;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.footer-section h4 {
    color: #bdc3c7;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-section p {
    line-height: 1.6;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.footer-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #ecf0f1;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    color: #2196f3;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #ecf0f1;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
    margin-bottom: 0.5rem;
}

.footer-social a:hover {
    opacity: 1;
    color: #2196f3;
}

.footer-social svg {
    width: 18px;
    height: 18px;
}

.footer-bottom {
    border-top: 1px solid #4a6572;
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copyright {
    opacity: 0.8;
}

.footer-tech {
    opacity: 0.7;
    font-size: 0.9rem;
}
/* Стили для номеров строк от плагина */
.hljs-ln-numbers {
  text-align: center;
  color: #ccc;
  border-right: 1px solid #999;
  vertical-align: top;
  padding-right: 0.5em;
  margin-right: 0.5em;
  user-select: none;
}
td.hljs-ln-line.hljs-ln-numbers {
    padding-right: 5px;
}
td.hljs-ln-line.hljs-ln-code {
    padding-left: 5px;
}
/* Стили для строчного кода */
code.language-plaintext.highlighter-rouge {
  background-color: #f6f8fa;
  color: #24292f;
  padding: 0.2em 0.4em;
  border-radius: 6px;
  border: 1px solid #d0d7de;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.85em;
  white-space: break-spaces;
}
/* Стили при наведении для интерактивности */
code.language-plaintext.highlighter-rouge:hover {
  background-color: #ebf0f4;
  border-color: #c0c8d0;
}
/* Адаптивность */
@media (max-width: 968px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
}
@media (max-width: 576px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .site-footer {
        padding: 2rem 0 1rem;
    }
}
@media (max-width: 768px) {
    .about-section {
        padding: 1rem;
        margin-bottom: 2rem;
    }
    
    .cta-section {
        padding: 1.5rem;
    }
}
@media (max-width: 768px) {
    .progress-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .progress-stats {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .progress-bar {
        width: 100%;
    }
}