body {
            background-color: #f1f1f1;
            margin: 0;
        }

        .main-container {
            flex: 1;
            display: flex;
            justify-content: center;
            margin: 20px auto;
            max-width: 1200px;
            padding-bottom: 5%;
        }

        .wrapper {
            max-width: 1200px;
            width: 100%;
            display: flex;
            gap: 30px;
        }

        .sidebar {
            width: 260px;
            background: #13322e;
            border-radius: 10px;
            overflow: hidden;
        }

        .sidebar-title {
            background: #9d2449;
            color: white;
            padding: 12px 15px;
            font-weight: bold;
            display: block !important;
            text-align: left !important;
            word-spacing: normal !important;
        }

        .menu-btn {
            width: 100%;
            padding: 10px 15px;
            border: none;
            background: #13322e;
            color: #ffffff;
            text-align: left !important;
            word-spacing: normal !important;
            letter-spacing: normal !important;
            white-space: normal;
            overflow-wrap: break-word;
            cursor: pointer;
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 14px;
        }

        .menu-btn::before {
            content: "› ";
            opacity: 0.7;
        }

        .menu-btn:hover {
            background: #9d2449;
        }

        .menu-btn.active {
            background: #1e5b4f;
            color: #ffffff;
        }

        .content {
            flex: 1;
            background: white;
            padding: 30px;
            border-radius: 10px;
        }

        .content h1,
        .content h2,
        .content h3 {
            color: #611232;
        }

        .content h1 {
            margin: 0 0 22px;
            font-size: 30px;
            line-height: 1.25;
        }

        .content h2 {
            margin: 30px 0 12px;
            font-size: 22px;
        }

        .content h3 {
            margin: 24px 0 10px;
            font-size: 18px;
        }

        .content p,
        .content li {
            line-height: 1.65;
        }

        .content ul {
            padding-left: 24px;
        }

        .content li + li {
            margin-top: 5px;
        }

        .two-columns {
            columns: 2;
            column-gap: 36px;
        }

        .document-link,
        .document-links {
            margin-top: 18px;
        }

        .document-link a,
        .document-links a {
            color: #245caa;
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .document-link a:hover,
        .document-links a:hover {
            color: #611232;
        }

        .tabla-posgrado {
            width: 100%;
            margin: 16px 0 30px;
            overflow-x: auto;
        }

        .tabla-posgrado table {
            width: 100%;
            min-width: 620px;
            border-collapse: collapse;
        }

        .tabla-posgrado th,
        .tabla-posgrado td {
            padding: 11px 12px;
            border: 1px solid #d9d9d9;
            text-align: left;
            vertical-align: middle;
            line-height: 1.45;
        }

        .tabla-posgrado th {
            background: #611232;
            color: #ffffff;
            font-weight: 700;
        }

        .tabla-posgrado tbody tr:nth-child(even) {
            background: #f7f7f7;
        }

        .tabla-posgrado th:last-child,
        .tabla-posgrado td:last-child {
            width: 90px;
            text-align: center;
            white-space: nowrap;
        }

        .tabla-investigacion {
            width: 100%;
            max-width: 720px;
            margin: 16px 0 30px;
            overflow-x: auto;
        }

        .tabla-investigacion table {
            width: 100%;
            min-width: 460px;
            border-collapse: collapse;
        }

        .tabla-investigacion th,
        .tabla-investigacion td {
            padding: 11px 12px;
            border: 1px solid #d9d9d9;
            text-align: left;
            vertical-align: middle;
            line-height: 1.45;
        }

        .tabla-investigacion th {
            background: #611232;
            color: #ffffff;
            font-weight: 700;
        }

        .tabla-investigacion tbody tr:nth-child(even) {
            background: #f7f7f7;
        }

        .tabla-investigacion th:not(:first-child),
        .tabla-investigacion td:not(:first-child) {
            text-align: center;
        }

        .section {
            display: none;
        }

        .section.active {
            display: block;
        }

        .dropdown-list {
            display: none;
            list-style: none;
            margin: 0;
            padding: 0;
            background: #13322e;
            color: #ffffff;
            font-size: 15px;
        }

        .dropdown-list li {
            padding: 12px 15px;
            cursor: pointer;
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
            display: block !important;
            text-align: left !important;
            word-spacing: normal !important;
            letter-spacing: normal !important;
            white-space: normal;
            overflow-wrap: break-word;
        }


        .dropdown-list li.active {
            background: #1e5b4f;
            color: #ffffff;
        }

        .dropdown-list li:hover {
            background: #9d2449;
        }

        @media (max-width: 900px) {
            .wrapper {
                flex-direction: column;
                padding: 0 15px;
            }

            .sidebar {
                width: 100%;
            }

            .content {
                padding: 24px 20px;
            }

            .content h1 {
                font-size: 25px;
            }

            .two-columns {
                columns: 1;
            }
        }