* {

     box-sizing: border-box;
 }



 .menu-button {
     position: fixed;
     top: 20px;
     right: 20px;
     width: 60px;
     height: 60px;
     background: white;
     border-radius: 50%;
     cursor: pointer;
     display: flex;
     flex-direction: column;
     justify-content: center;
     align-items: center;
     gap: 6px;
     box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
     transition: all 0.3s ease;
     z-index: 1000;
 }

 .menu-button:hover {
     transform: scale(1.05);
     box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
 }

 .line {
     width: 30px;
     height: 3px;
     background: #667eea;
     border-radius: 3px;
     transition: all 0.3s ease;
 }

 .menu-button.active .line:nth-child(1) {
     transform: rotate(45deg) translate(8px, 8px);
 }

 .menu-button.active .line:nth-child(2) {
     opacity: 0;
     transform: translateX(20px);
 }

 .menu-button.active .line:nth-child(3) {
     transform: rotate(-45deg) translate(8px, -8px);
 }

 .menu-panel {
     position: fixed;
     top: 0;
     right: -300px;
     width: 300px;
     height: 100vh;
     background: #ffffff;
     box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
     transition: right 0.3s ease;
     z-index: 999;
     padding: 100px 20px 30px;
     overflow-y: auto;
     color: #333 !important;
 }

 .menu-panel * {
     color: #333 !important;
 }

 .menu-panel.active {
     right: 0;
 }

 .menu-item {
     display: block;
     padding: 14px 16px;
     border-bottom: 1px solid #eee;
     cursor: pointer;
     transition: all 0.2s ease;
     color: #333;
     font-size: 18px;
     background: transparent;
     text-decoration: none;
 }

 .menu-item a {
     color: inherit;
     text-decoration: none;
     display: block;
 }

 .menu-item:hover,
 .menu-panel details li:hover,
 .menu-panel .menu-item a:hover {
     background: #f5f5f5;
     color: #667eea;
     padding-left: 10px;
 }

 .menu-panel details {
     list-style: none;
     margin: 0;
     padding: 0;
     border: none;
 }

 .menu-panel details {
     border-bottom: 1px solid #eaeaea;
     margin: 0;
     padding: 0;
 }

 .menu-panel details:last-child {
     border-bottom: none;
 }

 .menu-panel details summary {
     list-style: none;
     border: none;
     background: transparent;
     cursor: pointer;
     padding: 14px 16px;
     color: #333;
 }

 .menu-panel details summary::-webkit-details-marker {
     display: none;
 }

 .menu-panel details summary:hover {
     background: transparent;
     color: #667eea;
 }

 .menu-panel details[open] summary {
     background: transparent;
     color: #667eea;
 }

 .overlay {
     position: fixed;
     top: 0;
     left: 0;
     width: 100%;
     height: 100%;
     background: rgba(0, 0, 0, 0.5);
     opacity: 0;
     visibility: hidden;
     transition: all 0.3s ease;
     z-index: 998;
 }

 .overlay.active {
     opacity: 1;
     visibility: visible;
 }

 .content {
     max-width: 800px;
     margin: 0 auto;
     padding: 100px 20px;
     color: #333;
     /* dark text for better readability */
 }

 .content h1 {
     font-size: 48px;
     margin-bottom: 20px;
 }

 body {
     color: #333;
 }

 .menu-panel {
     background: #ffffff;
 }

 .menu-item {
     color: #333;
 }

 .menu-item a {
     color: inherit;
     text-decoration: none;
 }


 .content p {
     font-size: 20px;
     line-height: 1.6;
 }