/* --- Importeer Google Fonts (voeg bovenaan je CSS toe) --- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&family=Open+Sans:wght@400;600&display=swap');

/* --- CSS Variabelen en Basisstijlen --- */
:root {
    --primary-dark: #0A2B4C;
    --primary-light: #1E4770; 
    --accent-light: #47C1F4;
    --accent-dark: #2F98CC;  
    --neutral-white: #FFFFFF;
    --neutral-light-gray: #F8F9FA;
    --neutral-medium-gray: #E9ECEF; 
    --neutral-dark-gray: #343A40;
    --text-color: #333;
    --heading-font: 'Poppins', sans-serif; 
    --body-font: 'Open Sans', sans-serif;  
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --box-shadow-light: 0 4px 15px rgba(0,0,0,0.05);
    --box-shadow-strong: 0 8px 25px rgba(0,0,0,0.1);
    --transition-speed: 0.3s;
}

/* --- Algemene Reset en Body --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--body-font);
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--neutral-white);
    font-size: 16px; /* Basis fontgrootte */
}
.container {
    width: 90%;
    max-width: 1140px; /* Bredere container voor moderne look */
    margin: 0 auto;
    padding: 0 15px;
}
img {
    max-width: 100%;
    height: auto;
    display: block; /* Voorkomt extra ruimte onder afbeelding */
}
a {
    color: var(--accent-light);
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}
a:hover {
    color: var(--accent-dark);
    text-decoration: none; /* Liever geen underline standaard, tenzij het een content link is */
}
h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    color: var(--primary-dark);
    margin-bottom: 0.8rem;
    line-height: 1.3;
}
h1 { font-size: 2.8rem; margin-bottom: 1.5rem; }
h2 { font-size: 2.2rem; margin-bottom: 1.2rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.4rem; }

/* --- Header & Navigatie --- */
header {
    background-color: var(--neutral-white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease, border-bottom var(--transition-speed) ease;
    border-bottom: 1px solid transparent;
}
header.scrolled {
    background-color: var(--neutral-white);
    box-shadow: var(--box-shadow-light);
    border-bottom: 1px solid var(--neutral-medium-gray);
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
#logo {
    height: 50px; 
    transition: transform var(--transition-speed) ease;
}
#logo:hover {
    transform: scale(1.05);
}
.nav-menu {
    list-style: none;
    display: flex;
}
.nav-menu li {
    margin-left: 25px; /* Iets meer ruimte */
}
.nav-menu a {
    color: var(--primary-dark);
    font-weight: 600;
    padding: 8px 12px;
    border-radius: var(--border-radius-sm);
    transition: color var(--transition-speed), background-color var(--transition-speed);
    position: relative;
}
.nav-menu a::after { 
    content: '';
    position: absolute;
    bottom: -2px; /* Iets onder de tekst */
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--accent-light);
    transition: width var(--transition-speed) ease;
}
.nav-menu a.active {
    color: var(--accent-light);
}
.nav-menu a.active::after,
.nav-menu a:hover::after {
    width: 60%;
}
.nav-menu a:not(.active):hover {
    color: var(--accent-dark);
}
.nav-toggle { 
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001; /* Boven de rest */
}
.hamburger { 
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--primary-dark);
    position: relative;
    transition: transform var(--transition-speed) ease;
}
.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 3px;
    background-color: var(--primary-dark);
    left: 0;
    transition: transform var(--transition-speed) ease, top var(--transition-speed) ease, opacity var(--transition-speed) ease;
}
.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

/* Actieve staat voor hamburger (X) */
.nav-toggle.active .hamburger {
    background-color: transparent; /* Middenlijn verdwijnt */
}
.nav-toggle.active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}
.nav-toggle.active .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

/* --- Hero Sectie --- */
.hero {
    background-color: var(--primary-dark); 
    /* Optioneel: background-image: linear-gradient(rgba(10, 43, 76, 0.8), rgba(10, 43, 76, 0.9)), url('../images/hero-background.jpg'); */
    /* background-size: cover; */
    /* background-position: center; */
    color: var(--neutral-white);
    padding: 80px 0; 
    text-align: center;
}
.hero h1 {
    color: var(--neutral-white);
    font-size: 3rem; 
    font-weight: 700;
    margin-bottom: 1.5rem;
}
.hero h1 .highlight {
    color: var(--accent-light);
}
.hero p {
    font-size: 1.25rem; 
    margin-bottom: 2.5rem;
    max-width: 700px; 
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}
.cta-button {
    background-color: var(--accent-light);
    color: var(--neutral-white);
    padding: 14px 30px; 
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
    transition: background-color var(--transition-speed) ease, transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    border: 2px solid transparent;
    cursor: pointer;
}
.cta-button:hover {
    background-color: var(--accent-dark);
    transform: translateY(-3px);
    box-shadow: var(--box-shadow-strong);
    color: var(--neutral-white); /* Zeker stellen */
}
.cta-button.secondary {
    background-color: transparent;
    border-color: var(--accent-light);
    color: var(--accent-light);
}
.cta-button.secondary:hover {
    background-color: var(--accent-light);
    color: var(--neutral-white);
}

/* --- Algemene Sectie Styling --- */
.section {
    padding: 70px 0; 
}
.section-title {
    text-align: center;
    margin-bottom: 50px; 
    font-size: 2.5rem; 
    position: relative;
    padding-bottom: 20px; 
}
.section-title::after { 
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70px; 
    height: 4px;
    background-color: var(--accent-light);
    border-radius: 2px;
}

/* --- Service Cards / Feature Cards --- */
.services-grid, .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 20px;
}
.service-card, .feature-card {
    background-color: var(--neutral-white); 
    border: 1px solid var(--neutral-medium-gray);
    border-radius: var(--border-radius-md);
    padding: 25px;
    box-shadow: var(--box-shadow-light);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    display: flex;
    flex-direction: column; 
}
.service-card:hover, .feature-card:hover {
    transform: translateY(-7px);
    box-shadow: var(--box-shadow-strong);
}
.card-icon { 
    font-size: 2.2rem; 
    color: var(--accent-light);
    margin-bottom: 15px;
}
.service-card h3, .feature-card h3 {
    font-size: 1.4rem; 
    margin-top: 0;
    margin-bottom: 10px;
}
.service-card p, .feature-card p {
    font-size: 0.95rem;
    flex-grow: 1; 
    margin-bottom: 15px;
    color: #555;
}
.learn-more {
    display: inline-block;
    color: var(--accent-light);
    font-weight: bold;
    text-decoration: none;
    margin-top: auto; 
}
.learn-more:hover {
    color: var(--accent-dark);
}
.learn-more::after { /* Pijltje of andere indicatie */
    content: ' \2192'; /* Right arrow */
    display: inline-block;
    transition: transform var(--transition-speed) ease;
}
.learn-more:hover::after {
    transform: translateX(5px);
}

/* --- Specifieke dienstpagina Hero --- */
.service-hero {
    padding: 60px 0;
    text-align: center;
    background-color: var(--primary-light); 
    color: var(--neutral-white);
}
.service-hero h1 {
    color: var(--neutral-white);
    font-size: 2.8rem;
}
.service-hero p {
    font-size: 1.2rem;
    max-width: 650px;
    margin: 1rem auto 2rem auto;
    opacity: 0.9;
}

/* --- Content Kolommen --- */
.content-columns {
    display: flex;
    flex-wrap: wrap;
    gap: 40px; /* Iets meer ruimte */
    align-items: flex-start; /* Boven uitlijnen */
}
.content-columns .column {
    flex: 1;
    min-width: 300px;
}
.content-columns .column ul {
    list-style: none; 
    padding-left: 0;
}
.content-columns .column ul li {
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}
.content-columns .column ul li::before {
    content: '✓'; 
    color: var(--accent-light);
    position: absolute;
    left: 0;
    font-weight: bold;
    font-size: 1.1em;
}

/* --- Prijstabel Styling --- */
.pricing-table {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.pricing-plan {
    background-color: var(--neutral-white);
    border: 1px solid var(--neutral-medium-gray);
    border-radius: var(--border-radius-md);
    padding: 30px 25px;
    text-align: center;
    box-shadow: var(--box-shadow-light);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    position: relative; 
    display: flex;
    flex-direction: column;
}
.pricing-plan:hover {
    transform: translateY(-8px);
    box-shadow: var(--box-shadow-strong);
}
.pricing-plan.popular {
    border: 2px solid var(--accent-light);
    transform: scale(1.03); /* Iets groter maken */
}
.pricing-plan.popular:hover {
    transform: scale(1.03) translateY(-8px); /* Behoud schaal bij hover */
}
.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--accent-light);
    color: var(--neutral-white);
    padding: 6px 18px;
    border-radius: var(--border-radius-sm);
    font-size: 0.85em;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.pricing-plan h3 {
    font-size: 1.6rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
}
.pricing-plan .price {
    font-size: 2.8rem;
    font-weight: 700; /* Dikker voor prijs */
    color: var(--accent-light);
    margin-bottom: 20px;
}
.pricing-plan .price span {
    font-size: 1rem;
    font-weight: normal;
    color: #777;
}
.pricing-plan ul {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
    text-align: left;
    flex-grow: 1; /* Duwt knop naar beneden */
}
.pricing-plan ul li {
    margin-bottom: 12px;
    padding-left: 28px;
    position: relative;
    font-size: 0.95em;
}
.pricing-plan ul li::before { 
    content: '✓'; 
    color: var(--accent-light);
    position: absolute;
    left: 0;
    font-weight: bold;
    font-size: 1.2em;
}
.pricing-plan .cta-button {
    width: 100%;
    margin-top: auto; /* Zorgt dat knop onderaan staat */
}

/* --- FAQ Accordeon --- */
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background-color: var(--neutral-white);
    margin-bottom: 10px;
    border: 1px solid var(--neutral-medium-gray);
    border-radius: var(--border-radius-md); /* Iets ronder */
    overflow: hidden; 
}
.faq-question {
    background-color: transparent;
    border: none;
    width: 100%;
    padding: 18px 25px; /* Meer padding */
    text-align: left;
    font-family: var(--heading-font);
    font-size: 1.15rem; /* Iets groter */
    font-weight: 600;
    color: var(--primary-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition-speed);
}
.faq-question:hover {
    background-color: var(--neutral-light-gray); /* Subtiele hover */
}
.faq-icon {
    font-size: 1.4rem; /* Iets kleiner voor betere verhouding */
    font-weight: bold;
    color: var(--accent-light);
    transition: transform var(--transition-speed) ease;
}
.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}
.faq-answer {
    padding: 0 25px; 
    max-height: 0; 
    overflow: hidden;
    transition: max-height 0.35s ease-out, padding 0.35s ease-out; 
    color: #444; /* Iets donkerder voor leesbaarheid */
}
.faq-answer p {
    margin: 0 0 18px 0; /* Ruimte onder paragraaf */
    line-height: 1.7;
    font-size: 0.95rem;
}
.faq-question[aria-expanded="true"] + .faq-answer {
    /* Dynamisch via JS */
}

/* --- Contact Formulier --- */
.contact-container {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}
.contact-form-wrapper {
    flex: 2;
    min-width: 300px;
}
.contact-details {
    flex: 1;
    min-width: 280px;
    background-color: var(--neutral-light-gray);
    padding: 25px;
    border-radius: var(--border-radius-md);
}
.contact-details h3 {
    margin-top: 0;
    color: var(--primary-dark);
}
.contact-details p {
    margin-bottom: 10px;
}
.contact-details ul {
    list-style: none;
    padding-left: 0;
}
.contact-details ul li {
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}
.contact-details ul li::before {
    content: '»';
    color: var(--accent-light);
    position: absolute;
    left: 0;
}

.contact-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600; /* Duidelijker label */
    font-size: 0.9em;
}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
    width: 100%;
    padding: 12px 15px; /* Meer padding */
    margin-bottom: 20px; /* Meer ruimte */
    border: 1px solid var(--neutral-medium-gray);
    border-radius: var(--border-radius-sm);
    box-sizing: border-box;
    background-color: var(--neutral-white); /* Of --neutral-light-gray */
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
    font-family: var(--body-font);
    font-size: 1rem;
}
.contact-form input[type="text"]:focus,
.contact-form input[type="email"]:focus,
.contact-form textarea:focus {
    border-color: var(--accent-light);
    box-shadow: 0 0 0 0.15rem rgba(71, 193, 244, 0.20); 
    outline: none;
}
.contact-form textarea {
    min-height: 150px;
    resize: vertical; /* Toestaan verticale resize */
}
.contact-form button.cta-button { /* Hergebruik CTA knop stijl */
    padding: 12px 25px;
    font-size: 1rem;
}
.form-message { /* Voor succes/error berichten */
    padding: 15px;
    margin-bottom: 20px;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
}
.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}


/* --- Footer --- */
footer {
    background-color: var(--primary-dark);
    color: var(--neutral-light-gray);
    padding: 50px 0 30px 0; /* Meer padding boven */
    margin-top: 50px;
    font-size: 0.9rem;
}
.footer-content {
    display: grid; /* Grid voor betere alignment */
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
}
.footer-section h4 {
    color: var(--accent-light);
    margin-bottom: 20px; /* Meer ruimte */
    font-size: 1.2rem;
}
.footer-section p, .footer-section li {
    margin-bottom: 10px;
    opacity: 0.85; /* Iets zachter */
}
.footer-section ul {
    list-style: none;
    padding: 0;
}
.footer-section a {
    color: var(--neutral-light-gray);
    transition: color var(--transition-speed), padding-left var(--transition-speed);
}
.footer-section a:hover {
    color: var(--accent-light);
    padding-left: 5px; /* Kleine hover indent */
}

/* --- Responsive Design --- */
@media (max-width: 992px) {
    .hero h1 { font-size: 2.5rem; }
    .hero p { font-size: 1.15rem; }
    .section-title { font-size: 2.1rem; }
    .pricing-plan .price { font-size: 2.4rem; }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none; /* Start verborgen */
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 70px; /* Afhankelijk van header hoogte */
        left: 0;
        background-color: var(--neutral-white);
        border-top: 1px solid var(--neutral-medium-gray);
        padding: 15px 0;
        box-shadow: var(--box-shadow-light);
        z-index: 999;
    }
    .nav-menu.active { 
        display: flex;
    }
    .nav-menu li {
        margin: 12px 0;
        text-align: center;
    }
    .nav-menu a::after { /* Geen underline animatie op mobiel */
        display: none;
    }
    .nav-toggle {
        display: block; 
    }

    .hero h1 { font-size: 2.2rem; }
    .hero p { font-size: 1.05rem; }
    .cta-button { padding: 12px 25px; font-size: 0.95rem; }

    .section-title { font-size: 1.9rem; }
    .content-columns { gap: 20px; }
    .contact-form-wrapper, .contact-details { min-width: 100%; } /* Volle breedte op mobiel */
    
    .footer-content {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); /* Iets bredere kolommen */
        text-align: center; /* Centreer tekst in footer op mobiel */
    }
    .footer-section ul {
        padding-left: 0;
    }
    .footer-section a:hover {
        padding-left: 0; /* Geen indent op mobiel */
    }
}
/* --- Kennisbank Pagina Styling --- */
.knowledge-base-search {
    margin-top: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.knowledge-base-search form {
    display: flex;
    position: relative;
}
.knowledge-base-search input[type="search"] {
    width: 100%;
    padding: 18px 25px;
    font-size: 1.1rem;
    border-radius: var(--border-radius-md);
    border: 2px solid var(--neutral-medium-gray);
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}
.knowledge-base-search input[type="search"]:focus {
    border-color: var(--accent-light);
    box-shadow: 0 0 0 0.15rem rgba(71, 193, 244, 0.20); 
    outline: none;
}
.knowledge-base-search button {
    position: absolute;
    right: 5px;
    top: 5px;
    bottom: 5px;
    border: none;
    background-color: var(--accent-light);
    color: var(--neutral-white);
    padding: 0 25px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 1.2rem;
    transition: background-color var(--transition-speed);
}
.knowledge-base-search button:hover {
    background-color: var(--accent-dark);
}
.kb-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}
.kb-category-card {
    background-color: var(--neutral-light-gray);
    padding: 25px;
    border-radius: var(--border-radius-md);
}
.kb-category-card .card-icon {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--accent-light);
}
.kb-category-card h3 {
    margin-top: 0;
    margin-bottom: 15px;
    color: var(--primary-dark);
}
.kb-article-list {
    list-style: none;
    padding: 0;
}
.kb-article-list li {
    margin-bottom: 10px;
}
.kb-article-list li a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed), padding-left var(--transition-speed);
}
.kb-article-list li a:hover {
    color: var(--accent-light);
    padding-left: 5px;
}
.kb-article-list li a::before {
    content: '› ';
    margin-right: 5px;
}

/* --- Artikel Pagina Styling --- */
.article-page .container {
    max-width: 850px; /* Artikelen zijn prettiger leesbaar in een smallere container */
}
.breadcrumb {
    margin-bottom: 25px;
    font-size: 0.9em;
    color: #777;
}
.breadcrumb a {
    color: var(--accent-light);
}
.breadcrumb a:hover {
    text-decoration: underline;
}
.article-header {
    border-bottom: 2px solid var(--neutral-medium-gray);
    margin-bottom: 25px;
    padding-bottom: 20px;
}
.article-header h1 {
    font-size: 2.4rem;
    line-height: 1.2;
}
.article-meta {
    font-size: 0.9em;
    color: #777;
    margin-top: 10px;
}
.kb-article-content h2 {
    font-size: 1.8rem;
    margin-top: 40px;
    margin-bottom: 15px;
    padding-bottom: 5px;
    border-bottom: 1px solid var(--neutral-medium-gray);
}
.kb-article-content h3 {
    font-size: 1.4rem;
    margin-top: 25px;
}
.kb-article-content ul {
    list-style: disc;
    padding-left: 20px;
    margin-bottom: 15px;
}
.kb-article-content ul li {
    margin-bottom: 8px;
}
.kb-article-content a {
    font-weight: 600;
}
.code-block {
    background-color: #f0f3f5;
    border: 1px solid #d9e1e6;
    border-radius: var(--border-radius-sm);
    padding: 20px;
    margin: 20px 0;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.95em;
    white-space: pre-wrap; /* Behoudt enters, maar wrapt lange regels */
}
.code-block code {
    color: #c7254e; /* Kleur voor code-specifieke stukjes */
    background-color: #f9f2f4;
    padding: 2px 4px;
    border-radius: 3px;
}
.code-block hr {
    border: none;
    border-top: 1px dashed #ccc;
    margin: 15px 0;
}
.highlight-box {
    background-color: #eaf7fe;
    border-left: 5px solid var(--accent-light);
    padding: 20px;
    margin: 25px 0;
    border-radius: var(--border-radius-sm);
}
.related-articles {
    margin-top: 50px;
    padding-top: 25px;
    border-top: 2px solid var(--neutral-medium-gray);
}
.related-articles h3 {
    margin-top: 0;
}
.related-articles ul {
    list-style: none;
    padding-left: 0;
}