:root {
    --kleur-accent: #427aa1;
    --kleur-accent2: #8da9c4;
    --kleur-accent3: #ccdbfd;
    --kleur-accent4: #edf2fb;
    --kleur-accent5: #e2eafc;
    --kleur-accent6: #ccdbfd;
    --kleur-accent7: #6bb6e8;
    --kleur-accent8: #274c77;
    --kleur-achtergrond: #f8f7ff;
    --kleur-achtergrond2: #e1ecf7;
    --kleur-achtergrond3: #ffffff;
    --kleur-titel: #274c77;
    --kleur-link: #a3cef1;
    --kleur-link-hover: #6096ba;
    --kleur-h2: #427aa1;
    --kleur-h3: #8da9c4;
    --kleur-h4: #0b2545;
    --kleur-h5: #13315c;
    --kleur-h6: #134074;
    --kleur-quote: #e2eafc;
    --kleur-table: #edf2fb;
    --kleur-table-border: #d8e2dc;
    --padding-lijst: 1.5rem 2rem;
    --border-radius: 15px;
    --box-shadow: 0 4px 12px rgba(254,200,154,0.12);
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--kleur-achtergrond3) 0%, #fff 50%, var(--kleur-achtergrond2) 100%);
    min-height: 100vh;
    color: var(--kleur-accent8);
}

.container {
    max-width: 1700px;
    margin: 0 auto;
    padding: 10px;
}

/* Nieuwe Header Stijlen */
.header {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
    margin-bottom: 30px;
    align-items: stretch; /* Zorgt dat kolommen even hoog zijn */
}

.header-left {
    background: var(--kleur-achtergrond2);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 8px 32px var(--kleur-accent3);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.header-right {
    background: var(--kleur-achtergrond2);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.vertical-nav {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.vertical-nav .nav-button {
    padding: 5px 10px;
    text-align: center;
}

.header-right h1 {
    font-size: 2.5em;
    color: var(--kleur-titel);
    margin: 0;
    font-weight: 700;
}

.header-right p {
    font-size: 1.2em;
    color: var(--kleur-h2);
    opacity: 0.8;
    margin-top: 5px;
}

/* Oude header-top-nav is niet meer nodig in de nieuwe opzet */
.header-top-nav {
    display: none;
}

.header h1 {
    font-size: 2.2em;
    color: var(--kleur-titel);
    margin: 0;
    font-weight: 700;
    flex-grow: 1;
}

.nav-button {
    padding: 10px 20px;
    background-color: var(--kleur-accent4);
    color: var(--kleur-titel);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.nav-button:hover {
    background-color: var(--kleur-accent6);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
    color: var(--kleur-accent8);
}

.nav-button.active {
    background: linear-gradient(135deg, var(--kleur-link), var(--kleur-h4));
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(205, 133, 63, 0.3);
    pointer-events: none; /* Voorkomt klikken op de al actieve link */
}

.header p {
    font-size: 1.2em;
    color: var(--kleur-h2);
    opacity: 0.8;
    margin-top: 0;
}

.main-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

.sidebar {
    background: var(--kleur-achtergrond2);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    height: fit-content;
    position: sticky;
    top: 20px;
}

.sidebar-title {
    text-align: center;
    color: var(--kleur-accent8);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--kleur-table);
}

.year-title {
    font-size: 1.3em;
    font-weight: 700;
    display: block;
    margin-bottom: 10px;
}

.year-nav {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.year-link {
    text-decoration: none;
    color: var(--kleur-accent8);
    padding: 8px 15px;
    border-radius: 10px;
    transition: all 0.3s ease;
    font-size: 1.1em;
    font-weight: 600;
    background-color: var(--kleur-accent5);
}

.year-link.active {
    background-color: var(--kleur-accent8);
    color: var(--kleur-accent4);
}

.year-link:hover {
    background-color: var(--kleur-accent4);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    color: var(--kleur-accent8);
}

.week-menu {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.week-button {
    background: linear-gradient(135deg, var(--kleur-achtergrond3), var(--kleur-accent4));
    border: none;
    padding: 18px 20px;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--kleur-accent8);
    font-weight: 600;
    font-size: 0.9em;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    text-align: left;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-decoration: none;
}

.week-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(175, 190, 226, 0.4), transparent);
    transition: left 0.5s ease;
}

.week-button:hover::before {
    left: 100%;
}

.week-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, var(--kleur-accent4), var(--kleur-accent6));
    color: var(--kleur-accent8);
}

.week-button.active {
    background: linear-gradient(135deg, var(--kleur-accent6), var(--kleur-accent5));
    color: #0d3d6b;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(205, 133, 63, 0.3);
}

/* Exam step buttons - light blue styling */
.week-button.exam-step {
    background: linear-gradient(135deg, var(--kleur-accent4), var(--kleur-accent5));
    color: var(--kleur-accent8);
    border: 1px solid var(--kleur-h2);
}

.week-button.exam-step:hover {
    background: linear-gradient(135deg, var(--kleur-accent5), var(--kleur-accent6));
    color: #0d3d6b;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(107, 182, 232, 0.3);
}

.week-button.exam-step.active {
    background: linear-gradient(135deg, #4a9fd8, #2b7bb8);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 159, 216, 0.4);
}

.week-number {
    font-size: 0.8em;
    opacity: 0.85;
    margin-bottom: 4px;
    font-weight: 500;
}

/* Speciale stijl voor Anatomie / Fysiologie button */
.week-button.special-highlight {
    border: 1px solid #E83350;
    background: linear-gradient(135deg, #fff5f5, #ffe8e8);
}

.week-button.special-highlight:hover {
    border-color: #FA7070;
    background: linear-gradient(135deg, #ffe8e8, #ffd6d6);
}

.week-button.special-highlight.active {
    border: 1px solid #E83350;
    background: linear-gradient(135deg, #ffcccc, #ffb3b3);
}

.week-theme {
    font-size: 0.9em;
    line-height: 1.3;
    font-weight: 600;
}

.content-area {
    background: var(--kleur-achtergrond2);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(15px);
    min-height: 600px;
    transition: all 0.5s ease;
}

.content-area.wide-layout {
    max-width: 100%;
    width: 100%;
}

.week-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--kleur-table);
}

.week-header h2 {
    font-size: 2.2em;
    color: var(--kleur-titel);
    margin-bottom: 10px;
}

.week-header .theme {
    font-size: 1.3em;
    color: var(--kleur-h2);
    font-weight: 500;
}

.content-grid {
    display: block; /* Veranderd van grid naar block */
    margin-bottom: 30px;
}

.info-panel {
    background: linear-gradient(135deg, var(--kleur-table), var(--kleur-accent3));
    padding: 15px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    margin-bottom: 30px; /* Extra witruimte toegevoegd */
}

.info-panel h3 {
    color: var(--kleur-titel);
    margin-bottom: 15px;
    font-size: 1.3em;
}

.info-panel ul {
    list-style: none;
    padding: 0;
}

.info-panel li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
    color: var(--kleur-h2);
}

.info-panel li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--kleur-accent);
    font-weight: bold;
}

/* Content Sections - Nieuwe styling voor meerdere iframe kaders */
.content-sections {
    margin-top: 30px;
}

.section-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    margin-bottom: 25px;
    transition: all 0.5s ease;
    align-items: start; /* Items beginnen bovenaan in plaats van uit te rekken */
    grid-auto-rows: min-content; /* Rijen passen zich aan inhoud aan */
}

/* Layout wordt dynamisch aangepast via JavaScript */

.section-row:last-child {
    margin-bottom: 0;
}

/* Quiz en Opdrachten layout aanpassingen */
.wide-layout .section-row.quiz-row,
.wide-layout .section-row.opdrachten-row {
    display: block;
}

.wide-layout .section-row:not(.quiz-row):not(.opdrachten-row) {
    /* Eerste rij (theorie & video's) blijft normaal grid */
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.wide-layout .iframe-section.full-width {
    margin-bottom: 25px;
}

.wide-layout .iframe-section.full-width .iframe-container {
    min-height: 400px;
    padding: 30px;
}

.wide-layout .iframe-section.moved-down {
    margin-top: 0;
}

.iframe-section {
    background: var(--kleur-achtergrond2);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.5s ease;
    height: min-content; /* Hoogte past zich aan inhoud aan */
    align-self: start; /* Item start bovenaan grid cel */
}

.iframe-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.iframe-section.full-width {
    grid-column: 1 / -1;
    width: 100%;
}

.iframe-section.moved-down {
    grid-row: 3;
    grid-column: 1 / -1;
}

.iframe-section h3 {
    color: var(--kleur-titel);
    margin-bottom: 15px;
    font-size: 1.1em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.iframe-container {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 20px;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    height: auto; /* Auto hoogte voor flexibele inhoud */
    position: relative;
    transition: all 0.5s ease;
    overflow: visible; /* Maak overflow visible voor iframe content */
}

/* Specifieke stijlen voor iframe binnen container */
.iframe-container iframe {
    width: 100%;
    height: auto;
    min-height: 600px;
    max-height: 1200px;
    border: none;
    border-radius: 8px;
    display: block;
}

/* Container aanpassingen wanneer iframe geladen is */
.iframe-container:has(iframe) {
    padding: 0;
    min-height: auto;
    height: auto;
    display: block;
}

/* Specifieke containers voor verschillende secties */
.iframe-richtlijnen-container,
.iframe-theorie-container,
.iframe-opdracht-container {
    width: 100%;
    padding: 0;
    background: transparent;
    height: auto !important;
}

.iframe-richtlijnen-container > div,
.iframe-theorie-container > div,
.iframe-opdracht-container > div {
    padding: 20px;
    height: auto !important;
}

/* Wanneer full-width actief is */
.iframe-section.full-width {
    height: auto !important;
}

.iframe-section.full-width .iframe-container {
    height: auto !important;
    min-height: auto !important;
}

.iframe-placeholder {
    text-align: center;
    color: var(--kleur-h2);
}

.iframe-placeholder .icon {
    font-size: 2.5em;
    margin-bottom: 10px;
    color: var(--kleur-accent);
}

.iframe-placeholder p {
    margin-bottom: 15px;
    font-size: 0.95em;
}

.load-content-btn {
    background: linear-gradient(135deg, var(--kleur-link), var(--kleur-h3));
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(205, 133, 63, 0.3);
    font-size: 0.9em;
}

.load-content-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(205, 133, 63, 0.4);
}

.stats-bar {
    display: flex;
    justify-content: space-around;
    background: var(--kleur-achtergrond2);
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2em;
    font-weight: bold;
    color: var(--kleur-link);
    display: block;
}

.stat-label {
    color: var(--kleur-h2);
    font-size: 0.9em;
    margin-top: 5px;
}

.floating-elements {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.help-btn {
    background: var(--kleur-accent);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2em;
    box-shadow: 0 4px 15px rgba(254, 200, 154, 0.3);
    transition: all 0.3s ease;
}

.help-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(254, 200, 154, 0.4);
}

.loading-animation {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--kleur-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 15px;
    }
    
    .main-layout, .header {
        grid-template-columns: 260px 1fr;
        gap: 20px;
    }
}

@media (max-width: 1024px) {
    .main-layout, .header {
        grid-template-columns: 240px 1fr;
        gap: 15px;
    }
    
    .sidebar {
        padding: 20px;
    }
    
    .section-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 700px) {
    .main-layout, .header {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .header-left {
        display: none; /* Verberg de navigatie in de header op mobiel */
    }
    
    .sidebar {
        position: relative;
        top: 0;
        order: 2;
    }
    
    .week-menu {
        flex-direction: row;
        overflow-x: auto;
        gap: 10px;
        padding-bottom: 10px;
    }
    
    .week-button {
        min-width: 180px;
        flex-shrink: 0;
    }
    
    .content-area {
        order: 1;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .header-right h1, .header h1 {
        font-size: 2em;
    }

    .stats-bar {
        flex-direction: column;
        gap: 15px;
    }
}

/* Extra stijlen voor de content-boxen die dynamisch worden geladen */
.content-box {
    background-color: #ffffff;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.content-box h3 {
    color: var(--kleur-titel);
    margin-bottom: 15px;
    font-size: 1.5em;
}

.content-box p, .content-box div {
    line-height: 1.6;
    color: #333;
}

/* Quiz Specifieke Stijlen */
#quiz-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.quiz-vraag {
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
}

.quiz-vraag p {
    font-weight: 600;
    color: var(--kleur-h2);
}

.antwoorden {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.antwoorden label {
    padding: 10px;
    border-radius: 8px;
    transition: background-color 0.3s;
    cursor: pointer;
}

.antwoorden label:hover {
    background-color: var(--kleur-achtergrond);
}

.submit-btn {
    align-self: flex-start;
    background: linear-gradient(135deg, var(--kleur-link), var(--kleur-h3));
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(205, 133, 63, 0.3);
    font-size: 1em;
    margin-top: 10px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(205, 133, 63, 0.4);
}

.quiz-resultaat {
    margin-top: 20px;
    padding: 20px;
    border-radius: 10px;
    background-color: var(--kleur-achtergrond);
    border: 1px solid var(--kleur-accent3);
}

/* Stijlen voor uitgebreide anatomie content */
.detail-section h4 {
    color: var(--kleur-h4);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    border-bottom: 2px solid var(--kleur-accent3);
    padding-bottom: 5px;
}

.detail-section ul {
    list-style-type: disc;
    padding-left: 25px;
    margin-bottom: 1rem;
}

.detail-section li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.term {
    font-weight: 600;
    color: var(--kleur-h5);
}

.klinische-noot {
    background-color: var(--kleur-achtergrond2);
    border-left: 5px solid var(--kleur-link);
    padding: 15px;
    margin: 1rem 0;
    border-radius: 0 8px 8px 0;
}

.klinische-noot strong {
    color: var(--kleur-titel);
}

/* --- Anatomie Specifieke Stijlen --- */

/* Accordion and Tabs for Organs */
.organ-accordion {
    background: #fff;
    border-radius: 15px;
    margin-bottom: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.accordion-header {
    width: 100%;
    background: linear-gradient(135deg, var(--kleur-accent2), var(--kleur-accent));
    border: none;
    padding: 20px;
    border-radius: 15px;
    cursor: pointer;
    color: var(--kleur-titel);
    font-weight: 700;
    font-size: 1.2em;
    text-align: left;
    transition: all 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion-header:hover {
    background: linear-gradient(135deg, var(--kleur-accent), var(--kleur-link));
}

.accordion-header.active {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.accordion-header::after {
    content: '+';
    font-size: 1.5em;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.accordion-header.active::after {
    transform: rotate(45deg);
}

.accordion-panel {
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
    background-color: #f8f9fa;
    border-bottom-left-radius: 15px;
    border-bottom-right-radius: 15px;
}

.tab-nav {
    display: flex;
    border-bottom: 2px solid var(--kleur-table);
    background-color: var(--kleur-achtergrond);
}

.tab-link {
    padding: 15px 25px;
    cursor: pointer;
    border: none;
    background-color: transparent;
    font-size: 1em;
    font-weight: 600;
    color: var(--kleur-h2);
    transition: all 0.3s ease;
}

.tab-link:hover {
    background-color: var(--kleur-table);
}

.tab-link.active {
    background-color: var(--kleur-accent3);
    color: var(--kleur-titel);
    border-bottom: 2px solid var(--kleur-accent);
    margin-bottom: -2px;
}

.tab-content {
    display: none;
    padding: 25px;
    animation: fadeIn 0.5s;
    margin-bottom: 10px;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Quiz Styles */
.quiz-question {
    background-color: var(--kleur-achtergrond2);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.quiz-question p {
    margin-bottom: 15px;
    font-size: 1.1em;
    color: var(--kleur-h2);
}

.quiz-question label {
    display: block;
    margin-bottom: 8px;
    font-weight: normal;
    color: #34495e;
    cursor: pointer;
}

.quiz-question input[type="radio"] {
    margin-right: 10px;
}

.check-answer-btn, .statement-btn {
    background-color: var(--kleur-link);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    margin-top: 10px;
    margin-right: 10px;
}

.check-answer-btn:hover, .statement-btn:hover {
    background-color: var(--kleur-h3);
    transform: translateY(-2px);
}

.check-answer-btn:disabled, .statement-btn:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

.feedback {
    margin-top: 15px;
    padding: 10px;
    border-radius: 8px;
    font-weight: bold;
}

.feedback.correct {
    background-color: #e6ffe6;
    color: #28a745;
    border: 1px solid #28a745;
}

.feedback.incorrect {
    background-color: #ffe6e6;
    color: #dc3545;
    border: 1px solid #dc3545;
}

.feedback.info {
    background-color: #e6f7ff;
    color: #007bff;
    border: 1px solid #007bff;
}

/* Styling voor verbeterde intro content */
.intro-content {
    line-height: 1.8;
    font-size: 1em;
}

.intro-heading {
    color: var(--kleur-titel);
    font-size: 1.8em;
    margin-bottom: 1rem;
    text-align: center;
    border-bottom: 3px solid var(--kleur-accent);
    padding-bottom: 0.5rem;
}

.intro-paragraph {
    margin-bottom: 1.2rem;
    color: #333;
    text-align: justify;
}

.intro-paragraph.highlight {
    background: linear-gradient(135deg, var(--kleur-achtergrond), var(--kleur-accent3));
    padding: 1rem;
    border-radius: 10px;
    border-left: 4px solid var(--kleur-accent);
    font-size: 1.1em;
    margin-bottom: 1.5rem;
}

.content-section {
    margin: 1.5rem 0;
    padding: 1rem;
    background-color: var(--kleur-achtergrond2);
    border-radius: 8px;
    border: 1px solid var(--kleur-table-border);
}

.section-title {
    color: var(--kleur-h3);
    font-size: 1.3em;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.learning-list {
    list-style: none;
    padding-left: 0;
}

.learning-list li {
    margin-bottom: 0.8rem;
    padding: 0.5rem;
    background-color: #fff;
    border-radius: 5px;
    border-left: 3px solid var(--kleur-accent);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.highlight-box {
    background: linear-gradient(135deg, var(--kleur-accent2), var(--kleur-accent3));
    padding: 1.2rem;
    border-radius: 12px;
    margin-top: 1.5rem;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.highlight-text {
    margin: 0;
    font-size: 1.1em;
    color: var(--kleur-titel);
    text-align: center;
    font-weight: 500;
}

/* Video styling */
.videos-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.video-item {
    background-color: #fff;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    border: 1px solid var(--kleur-table-border);
}

.video-item h4 {
    color: var(--kleur-h2);
    font-size: 1.2em;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.video-item p {
    color: #666;
    margin-bottom: 1rem;
    font-style: italic;
}

.video-item video {
    width: 100%;
    max-width: 800px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    background-color: #000;
}

/* Presentatie styling */
.presentaties-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.presentatie-item {
    background-color: #fff;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    border: 1px solid var(--kleur-table-border);
}

.presentatie-item h4 {
    color: var(--kleur-h2);
    font-size: 1.2em;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.presentatie-item p {
    color: #666;
    margin-bottom: 1rem;
    font-style: italic;
}

.presentatie-download {
    text-align: center;
    padding: 1rem;
    background: linear-gradient(135deg, var(--kleur-achtergrond2), #fff);
    border-radius: 8px;
    border: 2px dashed var(--kleur-accent3);
}

.download-btn {
    display: inline-block;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--kleur-accent), var(--kleur-h2));
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    margin-bottom: 0.5rem;
}

.download-btn:hover {
    background: linear-gradient(135deg, var(--kleur-h2), var(--kleur-accent));
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.15);
    color: white;
    text-decoration: none;
}

.download-info {
    margin: 0.5rem 0 0 0;
    font-size: 0.9em;
    color: var(--kleur-h4);
    font-style: normal;
}