body {
    font-family: 'Inter', sans-serif;
    background-color: #000000;
    color: #ffffff;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1280px; 
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem; 
    padding-right: 1.5rem; 
}

.accent-gray {
    color: #cbd0d9; 
}

.bg-card {
    background-color: #111827; 
}

.card-border {
    border: 1px solid #374151; 
}

.header {
    padding-top: 1.5rem; 
    padding-bottom: 1.5rem; 
    border-bottom: 1px solid #374151;
}

.header-container {
    text-align: center;
}

.header-title {
    font-size: 2.25rem; 
    line-height: 2.5rem;
    font-weight: 700; 
}

@media (min-width: 768px) {
    .header-title {
        font-size: 3rem;
        line-height: 1;
    }
}

.header-subtitle {
    margin-top: 0.5rem; 
    font-size: 1.125rem; 
    color: #d1d5db; 
}

.main-content {
    padding-top: 3rem; 
    padding-bottom: 3rem; 
}

.article-grid {
    display: grid;
    grid-template-columns: 1fr; 
    gap: 2rem; 
}

@media (min-width: 768px) {
    .article-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)); 
    }
}

@media (min-width: 1024px) {
    .article-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr)); 
    }
}

.article-card {
    background-color: #111827;
    border-radius: 0.5rem; 
    border: 1px solid #374151;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1); 
    transition: transform 0.3s ease-out, box-shadow 0.3s ease-out; 
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.card-image {
    width: 100%;
    height: 12rem; 
    object-fit: cover;
}

.card-content {
    padding: 1.5rem; 
}

.card-category {
    font-size: 0.875rem; 
    font-weight: 600; 
}

.card-title {
    font-size: 1.5rem; 
    line-height: 2rem;
    font-weight: 700; 
    margin-top: 0.5rem; 
    margin-bottom: 0.75rem; 
}

.card-text {
    color: #9ca3af; 
    margin-bottom: 1rem; 
}

.card-link {
    display: inline-block;
    color: #ffffff; 
    background-color: #4b5563;
    font-weight: 600; 
    padding: 0.5rem 1rem; 
    border-radius: 0.25rem; 
    text-decoration: none;
    transition: background-color 0.3s ease-in-out;
}

.card-link:hover {
    background-color: #374151; 
}

.fade-in-element {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-element.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.footer {
    padding-top: 1.5rem; 
    padding-bottom: 1.5rem; 
    margin-top: 3rem; 
    border-top: 1px solid #374151;
}

.footer-container {
    text-align: center;
    color: #9ca3af; 
}

.footer-link-container {
    margin-top: 0.5rem; 
}

.footer-link {
    color: inherit;
    text-decoration: underline;
}

.footer-link:hover {
    color: #d1d5db; 
}

/* ======================================= */
/* 1. STIJL DE THEMA-SCHAKELKNOP EN ZIJN LOCATIE */
/* ======================================= */
.header-container {
    /* Zorgt ervoor dat elementen in de header flexibel zijn voor de knop */
    display: flex;
    flex-direction: column; /* Houd de titel en subtitel op aparte lijnen */
    align-items: center;
    position: relative; /* Nodig voor absolute positionering van de knop */
}

.theme-toggle-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem; 
    color: #cbd0d9; /* Lichte kleur die al in uw CSS staat */
    padding: 0.5rem;
    position: absolute; /* Plaats de knop rechtsboven in de header */
    top: 1.5rem; 
    right: 1.5rem; 
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s ease;
}

.theme-toggle-btn:hover {
    color: #ffffff;
}

/* Verberg de zon-icoon en toon de maan-icoon in light mode (standaard) */
.sun-icon {
    display: none;
}
.moon-icon {
    display: block;
}


/* ======================================= */
/* 2. DARK THEME DEFINITIES (BODY.DARK-THEME) */
/* ======================================= */

/* LET OP: De standaardkleuren in uw CSS zijn al DONKER (body background: #000000).
   Dit blok definieert de 'Light Mode' als de 'dark-theme' klasse wordt TOEGEVOEGD (omgekeerde logica).
   We definieren hier een LICHT thema! */

body.dark-theme {
    /* Algemene achtergrond en tekstkleur voor LIGHT mode */
    background-color: #f8f8f8;
    color: #1f2937;
}

body.dark-theme .accent-gray {
    color: #4b5563; 
}
body.dark-theme .bg-card {
    background-color: #ffffff; 
}

/* Zorg dat de MAAN-icoon verdwijnt en de ZON-icoon verschijnt in light mode */
body.dark-theme .sun-icon {
    display: block;
}
body.dark-theme .moon-icon {
    display: none;
}
body.dark-theme .theme-toggle-btn {
    color: #1f2937; /* Donkere kleur voor de knop in light mode */
}
body.dark-theme .theme-toggle-btn:hover {
    color: #000000;
}

/* Pas header en footer aan */
body.dark-theme .header {
    border-bottom: 1px solid #e5e7eb;
}
body.dark-theme .footer {
    border-top: 1px solid #e5e7eb;
}
body.dark-theme .footer-link-container {
    color: #4b5563;
}

/* Pas artikelen aan */
body.dark-theme .article-card {
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}
body.dark-theme .card-text {
    color: #4b5563;
}
body.dark-theme .card-link {
    background-color: #4b5563;
    color: #ffffff;
}