/* === БАЗА === */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { 
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; 
    line-height: 1.7; 
    color: #2d3748; 
    background: #f1f5f9; 
}

/* === МЕНЮ === */
nav { background: #1a202c; padding: 15px 0; margin-bottom: 40px; }
nav .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
nav a { color: #cbd5e0; text-decoration: none; font-size: 14px; font-weight: 500; padding: 6px 12px; border-radius: 4px; transition: all 0.2s; }
nav a:hover { color: #fff; background: rgba(255,255,255,0.1); }

/* === КОНТЕНТ === */
main { max-width: 1100px; margin: 0 auto; padding: 20px; min-height: 70vh; }
h1 { font-size: 2.2em; color: #1a202c; margin-bottom: 30px; text-align: center; font-weight: 800; }

/* === СПИСОК СТАТЕЙ (ГЛАВНАЯ) === */
main ul { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; list-style: none; padding: 0; margin-top: 20px; }
main ul li { background: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 20px; transition: transform 0.2s, box-shadow 0.2s; display: flex; flex-direction: column; justify-content: space-between; }
main ul li:hover { transform: translateY(-3px); box-shadow: 0 10px 15px rgba(0,0,0,0.05); border-color: #4299e1; }
main ul li a { font-size: 18px; font-weight: 600; color: #2d3748; text-decoration: none; margin-bottom: 12px; display: block; }
main ul li a:hover { color: #4299e1; }
main ul li small { font-size: 12px; color: #718096; text-transform: uppercase; letter-spacing: 0.5px; background: #edf2f7; padding: 4px 8px; border-radius: 4px; align-self: flex-start; }

/* === ТЕКСТ СТАТЬИ === */
article p { margin-bottom: 18px; color: #4a5568; }
article h2 { font-size: 1.6em; color: #2d3748; margin-top: 40px; margin-bottom: 20px; border-bottom: 2px solid #e2e8f0; padding-bottom: 10px; }
article h3 { font-size: 1.3em; color: #4a5568; margin-top: 30px; margin-bottom: 15px; }
article ul, article ol { margin-bottom: 20px; padding-left: 30px; }
article li { margin-bottom: 10px; color: #4a5568; }

/* === ПЕРЕЛИНКОВКА v1.2 === */
.cluster-block { margin-top: 60px; padding-top: 30px; border-top: 2px solid #e2e8f0; }
.cluster-block h3 { font-size: 1.5em; color: #1a202c; margin-bottom: 25px; font-weight: 700; }
.cluster-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.cluster-card { background: #fff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 20px; text-decoration: none; transition: all 0.25s ease; display: flex; flex-direction: column; justify-content: space-between; }
.cluster-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.08); border-color: #4299e1; }
.cluster-title { font-weight: 700; color: #2d3748; margin-bottom: 10px; font-size: 17px; line-height: 1.3; }
.cluster-desc { font-size: 14px; color: #718096; line-height: 1.5; }
.inline-link { color: #2b6cb0; text-decoration: underline; text-decoration-color: #bee3f8; text-underline-offset: 3px; font-weight: 500; }

/* === ПОДВАЛ === */
footer { text-align: center; padding: 40px 20px; color: #718096; font-size: 14px; border-top: 1px solid #e2e8f0; margin-top: 40px; }

/* === МОБИЛКА === */
@media (max-width: 768px) { main { padding: 15px; } h1 { font-size: 1.6em; } nav a { font-size: 13px; padding: 4px 8px; } main ul { grid-template-columns: 1fr; } }