:root {
    --primary-color: #00799B;
    --primary-hover: #008eb6;
    --accent-yellow: #ffe500;
    --error-red: #ef4444;
    --text-color: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.05);
}

body {
    background: radial-gradient(circle at center, #00799B 0%, #062e3a 100%);
    color: var(--text-color);
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

/* Container & Layout */
.container {
    text-align: center;
    padding: 3rem 2rem;
    max-width: 900px; /* Default voor portal */
    width: 100%;
    border-radius: 24px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    box-sizing: border-box;
}

/* Specifieke variant voor Error pagina's (403, 404, 502 / 450px) */
.container-error {
    max-width: 450px;
    padding: 2.5rem; /* Iets minder padding voor de kleine container */
}

/* Voor compacte pagina's zoals 403/404 */
.container-narrow {
    max-width: 450px;
}

/* Logo's */
.logo-main, .logo-brand, .logo {
    max-width: 220px;
    height: auto;
    display: block;
    margin: 0 auto 2rem;
    filter: drop-shadow(0 5px 15px rgba(0,0,0,0.3));
}

.logo-brand { max-width: 160px; }
.logo { max-width: 180px; }

/* Typografie */
h1 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.lead, p {
    font-size: 1.15rem;
    line-height: 1.6;
    color: rgba(248, 250, 252, 0.85);
    max-width: 700px;
    margin: 0 auto 2rem;
}

/* Status Badge (specifiek voor errors) */
.status-badge {
    display: inline-block;
    padding: 0.4rem 1.2rem;
    background: rgba(239, 68, 68, 0.25);
    color: var(--error-red);
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(239, 68, 68, 0.4);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.9rem 2rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 121, 155, 0.3);
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 121, 155, 0.4);
}

/* Grid & Cards (Portal) */
.brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.brand-card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 16px;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    text-align: left;
}

.brand-card > div {
    flex-grow: 1;	/* Duwt de .visit-link naar beneden */
}

.visit-link {
    display: block;
    margin-top: 1.5rem;		/* Marge tussen tekst en link */
    font-weight: 600;
    color: var(--accent-yellow);
}

.brand-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
    border-color: var(--accent-yellow);
}

.brand-card h3 {
    margin: 0 0 0.75rem 0;
    color: var(--accent-yellow);
    font-size: 1.25rem;
}

/* Footer */
.footer {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    color: rgba(248, 250, 252, 0.5);
}

/* Media Queries voor Mobiel */
@media (max-width: 600px) {
    body {
        padding: 10px; /* Minder witruimte rondom op mobiel */
    }

    .container {
        padding: 2rem 1.25rem; /* Compactere container */
        border-radius: 16px;   /* Iets minder ronde hoeken op mobiel */
    }

    h1 {
        font-size: 1.75rem;    /* Iets kleinere titel */
    }

    .lead, p {
        font-size: 1rem;       /* Prettiger leesbaar op kleine schermen */
    }

    .brand-grid {
        gap: 1rem;             /* Iets minder ruimte tussen de kaarten */
    }

    .brand-card {
        padding: 1.25rem;      /* Compactere kaart-padding */
    }

    .logo-main {
        max-width: 180px;      /* Logo iets kleiner op mobiel */
    }
}