KI-gestütztes Lernen: Optimierung der Bildung für das 21. Jahrhundert

.dr-wrapper { width: 100%; max-width: 520px; position: relative; font-family: 'Roboto Serif', Georgia, serif; } .dr-label { display: block; font-family: 'Roboto Serif', Georgia, serif; font-size: 12px; font-weight: 400; letter-spacing: 0.12em; text-transform: uppercase; color: #333333; margin-bottom: 8px; } .dr-select { width: 100%; appearance: none; -webkit-appearance: none; -moz-appearance: none; background-color: #ffffff; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23333333' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; border: 1px solid #cccccc; border-radius: 3px; padding: 14px 48px 14px 16px; font-family: 'Roboto Serif', Georgia, serif; font-size: 15px; font-weight: 400; color: #222222; cursor: pointer; outline: none; transition: border-color 0.2s ease; box-sizing: border-box; line-height: 1.4; } .dr-select:focus { border-color: #888888; } .dr-select:hover { border-color: #999999; } .dr-select option { font-family: 'Roboto Serif', Georgia, serif; font-size: 15px; color: #222222; background-color: #ffffff; } .dr-select option:disabled { color: #999999; } /* Estilos premium para separar los bloques de meses/años */ .dr-select optgroup { font-family: 'Roboto Serif', Georgia, serif; font-weight: 600; font-style: normal; color: #c22e85; /* Tono magenta sutil corporativo */ background-color: #ffffff; text-transform: uppercase; letter-spacing: 0.05em; } .dr-select optgroup option { color: #222222; font-weight: 400; text-transform: none; letter-spacing: normal; } @media (max-width: 600px) { .dr-wrapper { max-width: 100%; } .dr-select { font-size: 14px; padding: 13px 44px 13px 14px; } } document.addEventListener('DOMContentLoaded', function() { const dateSelect = document.getElementById('dr-date-range'); // Base de datos de fechas con la lista combinada y limpia de 2026 y 2027 const scheduleData = { "2026 Pending": ["09.02.2026", "13.07.2026", "05.10.2026", "19.10.2026"], "February 2027": ["08.02.2027"], "March 2027": ["08.03.2027"], "April 2027": ["19.04.2027"], "May 2027": ["17.05.2027"], "July 2027": ["05.07.2027"], "October 2027": ["04.10.2027"], "November 2027": ["22.11.2027"] }; // Convierte el formato "DD.MM.YYYY" a un objeto de fecha nativo de JavaScript para comparar function parseDateString(str) { const parts = str.split('.'); return new Date(parts[2], parts[1] - 1, parts[0]); } function renderDates() { // Obtener el día actual a las 00:00 h const today = new Date(); today.setHours(0, 0, 0, 0); // Limpiar el select dejando el placeholder inicial dateSelect.innerHTML = 'Check starting dates'; let hasAnyValidDate = false; for (const groupName in scheduleData) { const optgroup = document.createElement('optgroup'); optgroup.label = groupName; let validDatesInGroup = 0; scheduleData[groupName].forEach(dateStr => { const courseDate = parseDateString(dateStr); // Filtro activo: Solo añade la fecha si es igual o posterior al día de hoy if (courseDate >= today) { const opt = document.createElement('option'); opt.value = dateStr; opt.textContent = dateStr; optgroup.appendChild(opt); validDatesInGroup++; hasAnyValidDate = true; } }); // Solo inyectar el bloque mensual si contiene al menos una fecha futura if (validDatesInGroup > 0) { dateSelect.appendChild(optgroup); } } // Si todas las fechas ya han pasado y el menú se queda totalmente vacío if (!hasAnyValidDate) { dateSelect.innerHTML = 'No upcoming dates available'; } } // Arrancar el proceso automático al cargar la web renderDates(); });