.formula-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5em; margin-top: 1em; }
.formula-card { background: #f8f9fa; border: 1px solid #e0e0e0; border-radius: 8px; padding: 1em; transition: all 0.2s ease; }
.formula-card:hover { background: #f0f4f8; border-color: #1976d2; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
.formula-label { font-weight: 600; color: #1976d2; font-size: 0.9em; margin-bottom: 0.5em; display: block; }
.formula-content { text-align: center; padding: 0.5em 0; font-size: 1.05em; }
.formula-note { font-size: 0.85em; color: #666; text-align: center; margin-top: 0.5em; }
.formula-section-title { grid-column: 1 / -1; font-weight: 600; color: #333; border-bottom: 2px solid #1976d2; padding-bottom: 0.3em; margin-top: 1em; margin-bottom: 0.5em; }
.formula-section-title:first-child { margin-top: 0; }
@media (max-width: 768px) { .formula-grid { grid-template-columns: 1fr; } }
/**
 * Math & Formula Module
 */

.formula-equation { background: linear-gradient(145deg, #ffffff, #f8fafc); border: 2px solid var(--primary-light); border-radius: var(--radius-lg); padding: 1.5rem; margin: 1rem 0; text-align: center; box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.1); position: relative; overflow-x: auto; min-height: 60px; display: flex; align-items: center; justify-content: center; }
.formula-equation::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.formula-inline-box { margin: 10px 0; padding: 8px; background: #f5f5f5; border-radius: 4px; font-family: monospace; }
.formula-equation .MathJax { font-size: 1.3em !important; }
.formula-equation .MathJax_Display { margin: 0 !important; }

@media (prefers-color-scheme: dark) { .formula-equation { background: linear-gradient(145deg, #1e293b, #334155); border-color: rgba(37, 99, 235, 0.3); } }

.MathJax_Error { color: var(--error) !important; background: rgba(239, 68, 68, 0.1) !important; padding: 0.25rem 0.5rem !important; border-radius: var(--radius-sm) !important; border: 1px solid var(--error) !important; font-family: var(--font-family-mono) !important; font-size: 0.875rem !important; }
.MathJax_Error::before { content: "⚠️ Math Error: " !important; font-weight: bold !important; }

.formula-equation:empty::before { content: "Lade Formel..." !important; color: var(--text-muted); font-style: italic; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.formula-equation.rendering { background: linear-gradient(45deg, transparent 25%, rgba(59, 130, 246, 0.1) 25%, rgba(59, 130, 246, 0.1) 50%, transparent 50%, transparent 75%, rgba(59, 130, 246, 0.1) 75%); background-size: 20px 20px; animation: mathLoading 1s linear infinite; }
@keyframes mathLoading { 0% { background-position: 0 0; } 100% { background-position: 20px 0; } }
.MathJax_Display { margin: 1rem 0 !important; }
.MathJax_SVG { max-width: 100% !important; overflow-x: auto !important; }
#fixMathBtn { background: var(--warning) !important; color: white !important; border-color: var(--warning) !important; }
#fixMathBtn:hover { background: #d97706 !important; transform: translateY(-1px); }

@media (max-width: 768px) { .formula-equation .MathJax { font-size: 1.1em !important; } .formula-equation { padding: 1rem; } }