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

body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background: #121212;
    color: #f5f5f5;
    overflow: auto;
    padding: 20px;
}

.md-card {
    background: rgba(30, 30, 30, 0.85);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    max-width: 800px;
    width: 90%;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 100;
    margin: 20px 0;
}

.md-card h1 { 
    font-size: 28px; 
    margin-bottom: 20px; 
    color: #ffffff;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.md-card h2 { 
    font-size: 22px; 
    margin-bottom: 15px; 
    color: #e0e0e0;
    margin-top: 25px;
}

.md-card h3 { 
    font-size: 18px; 
    margin-bottom: 12px; 
    color: #cccccc;
}

.md-card p { 
    margin-bottom: 18px; 
    line-height: 1.6;
    color: #e0e0e0;
}

.md-card ul { 
    padding-left: 25px; 
    margin-bottom: 18px; 
}

.md-card ol { 
    padding-left: 25px; 
    margin-bottom: 18px; 
}

.md-card li { 
    margin-bottom: 8px; 
    color: #e0e0e0;
}

.md-card blockquote {
    border-left: 4px solid rgba(85, 85, 85, 0.6);
    padding-left: 15px;
    color: #bbbbbb;
    margin-bottom: 18px;
    font-style: italic;
    background: rgba(42, 42, 42, 0.3);
    padding: 15px;
    border-radius: 8px;
}

.md-card code {
    background: rgba(42, 42, 42, 0.6);
    padding: 3px 8px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    color: #ffa500;
    font-size: 14px;
}

.md-card pre {
    background: rgba(42, 42, 42, 0.6);
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    margin-bottom: 18px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.md-card strong { 
    font-weight: bold; 
    color: #ffffff;
}

.md-card em { 
    font-style: italic; 
    color: #cccccc;
}

.md-card hr {
    border: none;
    border-top: 2px solid rgba(85, 85, 85, 0.4);
    margin: 25px 0;
}

/* Стили для ссылок внутри карточки */
.md-card a:not(button):not(.nav-btn) {
    color: #4dabf7;
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
    padding-bottom: 1px;
}

.md-card a:hover:not(button):not(.nav-btn) {
    color: #74c0fc;
    border-bottom-color: #74c0fc;
    transform: translateY(-1px);
}

/* Специальные стили для span рядом с ссылками */
.md-card a + span {
    color: #aaaaaa;
    font-size: 14px;
    margin-left: 5px;
}

/* Адаптивность */
@media (max-width: 768px) {
    .md-card {
        padding: 20px;
        margin: 10px;
    }
    
    .md-card h1 {
        font-size: 24px;
    }
    
    .md-card h2 {
        font-size: 20px;
    }
    
    .md-card h3 {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .md-card {
        padding: 15px;
    }
    
    .md-card h1 {
        font-size: 22px;
    }
}