/* Оформление на съдържанието на урок (сайт + преглед в админ панела) */
.lesson { font-size: 16.5px; line-height: 1.65; color: #1c2621; }
.lesson > :first-child { margin-top: 0; }
.lesson h2 { font-size: 22px; font-weight: 800; margin: 30px 0 10px; padding-top: 22px; border-top: 1px solid #e5e9e6; line-height: 1.3; }
.lesson h2:first-child { border-top: 0; padding-top: 0; }
.lesson h3 { font-size: 18px; font-weight: 700; margin: 18px 0 8px; }
.lesson p { margin: 0 0 12px; color: #3b4741; }
.lesson ul, .lesson ol { margin: 0 0 14px; padding-left: 24px; }
.lesson li { margin-bottom: 6px; }
.lesson strong { color: #111a15; }
.lesson table { width: 100%; border-collapse: collapse; margin: 10px 0 16px; font-size: 15px; }
.lesson th, .lesson td { border: 1px solid #e0e6e2; padding: 8px 10px; text-align: left; vertical-align: top; }
.lesson th { background: #f2f6f3; font-weight: 700; }
.lesson blockquote { margin: 12px 0; padding: 10px 16px; border-left: 4px solid #9fc3af; background: #f6f9f7; color: #3b4741; }
.lesson pre { background: #10231b; color: #e8f1ec; padding: 14px 16px; border-radius: 10px; overflow-x: auto; font-size: 14px; line-height: 1.5; }
.lesson code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .92em; }
.lesson :not(pre) > code { background: #eef3f0; padding: 2px 6px; border-radius: 5px; }
.lesson .example { margin: 16px 0; padding: 16px 20px; border-radius: 12px; background: #edf5f0; }
.lesson .example h3 { margin-top: 0; color: #1f5a43; display: flex; align-items: center; gap: 10px; }
.lesson .example h3::before { content: "\270E"; font-size: 18px; }
.lesson .tip { margin: 16px 0; padding: 14px 18px; border-radius: 12px; border: 1px solid #f0d78c; background: #fff9e6; }
.lesson .tip > :last-child, .lesson .example > :last-child { margin-bottom: 0; }
.lesson .katex-display { margin: 14px 0; padding: 14px 10px; background: #f6f8f7; border-radius: 10px; overflow-x: auto; overflow-y: hidden; }
.lesson .katex { font-size: 1.08em; }