```css
/* ========================================
   RIFTBLOG
   Main stylesheet
   ======================================== */


/* ---------- Algemene instellingen ---------- */

* {
    box-sizing: border-box;
}

body {
    margin: 0;

    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Arial,
        sans-serif;

    background: #0b1020;
    color: #f8fafc;
}


/* ---------- Links ---------- */

a {
    color: inherit;
}


/* ---------- Header ---------- */

header {
    background: rgba(15, 23, 42, 0.95);
    border-bottom: 1px solid #26324a;

    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1150px;
    margin: 0 auto;

    padding: 18px 24px;

    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 28px;
    font-weight: 800;

    letter-spacing: -1px;

    color: #ffffff;
}

.logo span {
    color: #a78bfa;
}


/* ---------- Navigatie ---------- */

nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

nav a {
    color: #aab4c8;

    text-decoration: none;

    font-size: 15px;
    font-weight: 600;

    transition: color 0.2s ease;

    display: flex;
    align-items: center;
    line-height: 1;
}

nav a:hover {
    color: #ffffff;
}


/* ---------- Hero ---------- */

.hero {
    max-width: 1150px;

    margin: 0 auto;

    padding: 90px 24px 75px;
}

.hero-label {
    color: #a78bfa;

    font-size: 13px;
    font-weight: 800;

    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.hero h1 {
    max-width: 800px;

    margin: 14px 0 20px;

    font-size: clamp(42px, 7vw, 72px);

    line-height: 1.05;

    letter-spacing: -3px;
}

.hero p {
    max-width: 680px;

    margin: 0;

    color: #9aa7bc;

    font-size: 20px;
    line-height: 1.7;
}


/* ---------- Artikelen ---------- */

.articles {
    max-width: 1150px;

    margin: 0 auto;

    padding: 0 24px 90px;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;

    margin-bottom: 28px;
}

.section-title h2 {
    margin: 0;

    font-size: 30px;
    letter-spacing: -1px;
}

.article-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 24px;
}

.article {
    background: #151e31;

    border: 1px solid #26324a;

    border-radius: 12px;

    padding: 28px;

    transition:
        transform 0.2s ease,
        border-color 0.2s ease,
        background 0.2s ease;
}

.article:hover {
    transform: translateY(-4px);

    border-color: #6655a8;

    background: #19243a;
}

.article a {
    text-decoration: none;
}

.category {
    color: #a78bfa;

    font-size: 12px;
    font-weight: 800;

    letter-spacing: 1.2px;

    text-transform: uppercase;
}

.article h3 {
    margin: 12px 0;

    font-size: 22px;
    line-height: 1.3;
}

.article p {
    margin: 0;

    color: #94a3b8;

    line-height: 1.6;
}


/* ---------- Artikelpagina ---------- */

.post-container {
    max-width: 820px;

    margin: 0 auto;

    padding: 80px 24px 100px;
}

.post-title {
    margin: 12px 0 15px;

    font-size: clamp(42px, 7vw, 64px);

    line-height: 1.05;

    letter-spacing: -2px;
}

.post-date {
    color: #64748b;

    font-size: 14px;

    margin-bottom: 55px;
}


/* ---------- Tags ---------- */

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;

    margin-top: -35px;
    margin-bottom: 45px;
}

.post-tag {
    display: inline-block;

    padding: 6px 11px;

    border: 1px solid #34415f;
    border-radius: 999px;

    color: #a78bfa;

    font-size: 12px;
    font-weight: 700;

    letter-spacing: 0.5px;

    background: #151e31;
}

.post-content {
    color: #cbd5e1;

    font-size: 19px;

    line-height: 1.8;
}

.post-content h2 {
    margin-top: 55px;

    color: #ffffff;

    font-size: 30px;
}

.post-content h3 {
    margin-top: 40px;

    color: #ffffff;
}

.post-content strong {
    color: #ffffff;
}

.post-content a {
    color: #a78bfa;
}

.post-content img {
    max-width: 100%;

    border-radius: 12px;

    margin: 25px 0;
}


/* ---------- Footer ---------- */

footer {
    border-top: 1px solid #26324a;

    padding: 35px 24px;

    text-align: center;

    color: #64748b;

    font-size: 14px;
}


/* ---------- Mobiel ---------- */

@media (max-width: 800px) {

    .header-inner {
        padding: 14px 12px;
    }

    .logo {
        font-size: 24px;
    }

    nav {
        display: flex;
        align-items: center;
        gap: 5px;
    }

    nav a {
        display: flex;
        align-items: center;

        font-size: 11px;
        line-height: 1;
    }

    .youtube-link img {
        width: 17px;
        height: 17px;

        display: block;
        object-fit: contain;
    }

    .hero {
        padding-top: 60px;
    }

    .hero h1 {
        letter-spacing: -2px;
    }

    .article-grid {
        grid-template-columns: 1fr;
    }

    .post-container {
        padding-top: 55px;
    }

}


/* ---------- Featured article ---------- */

.featured {
    max-width: 1150px;

    margin: 0 auto 90px;

    padding: 0 24px;
}

.featured > a {
    display: block;

    text-decoration: none;

    background:
        linear-gradient(
            135deg,
            #1d2942,
            #171d32
        );

    border: 1px solid #34415f;

    border-radius: 16px;

    overflow: hidden;

    transition:
        transform 0.25s ease,
        border-color 0.25s ease;
}

.featured > a:hover {
    transform: translateY(-5px);

    border-color: #8069d1;
}

.featured-label {
    margin-bottom: 15px;

    color: #a78bfa;

    font-size: 12px;
    font-weight: 800;

    letter-spacing: 1.5px;

    text-transform: uppercase;
}

.featured-content {
    padding: 55px;
}

.featured-category {
    color: #a78bfa;

    font-size: 12px;
    font-weight: 800;

    letter-spacing: 1px;

    text-transform: uppercase;
}

.featured h2 {
    max-width: 800px;

    margin: 15px 0;

    color: #ffffff;

    font-size: clamp(32px, 5vw, 52px);

    line-height: 1.1;

    letter-spacing: -2px;
}

.featured p {
    max-width: 700px;

    margin: 0 0 25px;

    color: #aab6c9;

    font-size: 18px;

    line-height: 1.7;
}

.featured-link {
    color: #ffffff;

    font-size: 14px;
    font-weight: 800;

    letter-spacing: 0.5px;
}


/* ---------- Featured mobiel ---------- */

@media (max-width: 800px) {

    .featured-content {
        padding: 35px 28px;
    }

}


/* ---------- Featured image ---------- */

.featured-image {
    display: block;

    width: 100%;
    height: 240px;

    object-fit: cover;
    object-position: center center;

    border-bottom: 1px solid #34415f;
}


/* ---------- Featured image mobiel ---------- */

@media (max-width: 800px) {

    .featured-image {
        height: 180px;
    }

}


/* ---------- Afbeelding op artikelpagina ---------- */

.post-image {
    display: block;

    width: 100%;
    max-width: 800px;
    height: 200px;

    margin: 30px auto 45px;

    object-fit: cover;
    object-position: center center;

    border-radius: 16px;

    border: 1px solid #34415f;
}


/* ---------- Artikelafbeelding mobiel ---------- */

@media (max-width: 800px) {

    .post-image {
        width: 100%;
        max-width: none;
        height: 180px;

        border-radius: 16px;
    }

}


/* ---------- Zoekfunctie ---------- */

.search-box {
    max-width: 800px;
    margin: 0 auto 50px;
    padding: 0 24px;
}

.search-box input {
    width: 100%;

    padding: 16px 20px;

    background: #151e31;

    border: 1px solid #34415f;
    border-radius: 12px;

    color: #ffffff;

    font-family: inherit;
    font-size: 16px;

    outline: none;

    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}

.search-box input::placeholder {
    color: #64748b;
}

.search-box input:focus {
    border-color: #8069d1;

    box-shadow:
        0 0 0 3px rgba(167, 139, 250, 0.12);
}

.search-empty {
    grid-column: 1 / -1;

    color: #94a3b8;

    text-align: center;

    padding: 40px 20px;
}


/* ---------- YouTube navigatie ---------- */

.youtube-link {
    display: flex;
    align-items: center;
}

.youtube-link img {
    width: 17px;
    height: 17px;

    object-fit: contain;
    display: block;
}

.youtube-link:hover img {
    opacity: 0.8;
}
```