:root {
    --oranje: #ff7a00;
    --donker: #1b1b1b;
    --wit: #ffffff;
    --licht: #f8f8f8;
}

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

body {
    font-family: Arial, sans-serif;
    color: var(--donker);
    background: var(--wit);
}

.container {
    max-width: 1100px;
    margin: auto;
    padding: 20px;
}

/* Header */
.header {
    background: var(--wit);
    padding: 15px 0;
    position: sticky;
    top: 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    z-index: 1000;
}
.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
nav a {
    margin-left: 20px;
    color: var(--donker);
    text-decoration: none;
    font-weight: bold;
}

/* Hero */
.hero {
    background: var(--oranje);
    color: var(--wit);
    text-align: center;
    padding: 80px 20px;
}
.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 15px;
}
.hero p {
    margin-bottom: 20px;
    font-size: 1.2rem;
}
.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    margin: 5px;
}
.btn.primary {
    background: var(--donker);
    color: var(--wit);
}
.btn.secondary {
    background: #25d366;
    color: var(--wit);
}

/* Sections */
.section {
    padding: 60px 20px;
    text-align: center;
}
.section.light {
    background: var(--licht);
}
.section h2 {
    font-size: 2rem;
    margin-bottom: 25px;
}

/* Cards */
.cards {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}
.card {
    background: var(--wit);
    padding: 25px;
    width: 260px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.card i {
    font-size: 2rem;
    color: var(--oranje);
    margin-bottom: 10px;
}

/* Reviews */
.reviews blockquote {
    margin: 15px auto;
    font-style: italic;
    max-width: 700px;
}

/* Contactformulier - verticaal */
.contact-form {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
}

.contact-form button {
    width: 100%;
    padding: 15px;
    background: var(--oranje);
    color: var(--wit);
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
}

.contact-form button:hover {
    background: darkorange;
}

/* Footer */
.footer {
    background: var(--donker);
    color: var(--wit);
    text-align: center;
    padding: 20px;
}

/* Sticky WhatsApp knop */
.whatsapp-btn {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background: #25d366;
    color: var(--wit);
    padding: 15px 20px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    z-index: 9999;
}

/* Responsive */
@media (max-width: 768px) {
    .cards {
        flex-direction: column;
    }
    nav a {
        margin-left: 10px;
    }
}