/* Algemene instellingen */
* {
    box-sizing: border-box;
}
body {
    margin: 0;
    font-family: 'Inter', Arial, sans-serif;
    background: linear-gradient(135deg, #e3f0ff 0%, #f7f8fa 100%);
    color: #333;
    line-height: 1.6;
}
.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

/* Header */
header {
    background: linear-gradient(90deg, #003366 60%, #0066cc 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    transition: background 0.4s;
}
header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
header h1 {
    margin: 0;
    font-weight: 700;
    letter-spacing: 2px;
    font-size: 2.2rem;
}
nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
}
nav ul li {
    margin-left: 25px;
}
nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s, text-shadow 0.3s;
    position: relative;
}
nav ul li a:hover {
    color: #ffcc00;
    text-shadow: 0 2px 8px #00336644;
}

/* Hero sectie */
#hero {
    background: linear-gradient(120deg, #0066cc 60%, #66ccff 100%);
    color: white;
    padding: 100px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
#hero::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(120deg, #00336688 60%, #0066cc44 100%);
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}
.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 0 2px 12px #00336644;
}
.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}
.btn-primary {
    background: linear-gradient(90deg, #ffcc00 0%, #ff9900 100%);
    color: #003366;
    padding: 15px 40px;
    font-size: 1.1rem;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    font-weight: 700;
    box-shadow: 0 2px 12px #00336622;
    transition: background 0.3s, transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover, .btn-animate {
    background: linear-gradient(90deg, #ff9900 0%, #ffcc00 100%);
    transform: scale(1.07);
    box-shadow: 0 4px 24px #ff990044;
}

/* Diensten sectie */
#diensten {
    padding: 60px 0;
}
.grid-3 {
    display: flex;
    gap: 40px;
    justify-content: center;
    margin-top: 30px;
}
.dienst {
    background: white;
    border-radius: 18px;
    box-shadow: 0 2px 16px #00336611;
    padding: 32px 24px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
}
.dienst:hover {
    transform: translateY(-8px) scale(1.04);
    box-shadow: 0 8px 32px #0066cc22;
    background: linear-gradient(120deg, #e3f0ff 80%, #fff 100%);
}
.dienst i {
    color: #0066cc;
    margin-bottom: 18px;
    transition: color 0.3s, transform 0.3s;
}
.dienst:hover i {
    color: #ff9900;
    transform: scale(1.15) rotate(-8deg);
}
.dienst h3 {
    margin-top: 0;
    font-size: 1.3rem;
    color: #003366;
}
.dienst p {
    color: #444;
}

/* Features sectie */
.features {
    margin: 30px 0 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}
.features li {
    background: linear-gradient(90deg, #e3f0ff 60%, #fff 100%);
    border-radius: 12px;
    padding: 16px 24px;
    font-weight: 500;
    color: #003366;
    box-shadow: 0 2px 8px #00336611;
    transition: background 0.3s, box-shadow 0.3s;
}
.features li:hover {
    background: linear-gradient(90deg, #ffcc00 60%, #fff 100%);
    box-shadow: 0 4px 16px #ff990044;
}

/* Offerte formulier */
#offerte {
    padding: 60px 0;
}
form#offerteForm {
    background: white;
    border-radius: 18px;
    box-shadow: 0 2px 16px #00336611;
    padding: 32px 24px;
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 18px;
}
form label {
    font-weight: 600;
    color: #003366;
    margin-bottom: 6px;
}
form input, form select, form textarea {
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #cce0ff;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
    outline: none;
    background: #f7f8fa;
}
form input:focus, form select:focus, form textarea:focus, .input-focus-animate {
    border-color: #0066cc;
    box-shadow: 0 0 8px #0066cc44;
    background: #e3f0ff;
}
form button[type="submit"] {
    background: linear-gradient(90deg, #0066cc 0%, #66ccff 100%);
    color: white;
    font-weight: 700;
    border: none;
    border-radius: 30px;
    padding: 14px 0;
    font-size: 1.1rem;
    cursor: pointer;
    margin-top: 10px;
    box-shadow: 0 2px 12px #00336622;
    transition: background 0.3s, transform 0.2s, box-shadow 0.2s;
}
form button[type="submit"]:hover, .btn-animate {
    background: linear-gradient(90deg, #ff9900 0%, #ffcc00 100%);
    color: #003366;
    transform: scale(1.07);
    box-shadow: 0 4px 24px #ff990044;
}

/* Alerts */
.alert {
    padding: 16px 24px;
    border-radius: 12px;
    margin-bottom: 18px;
    font-weight: 600;
    box-shadow: 0 2px 8px #00336611;
    animation: fadeIn 0.7s;
}
.alert.success {
    background: linear-gradient(90deg, #e3ffe3 60%, #c6ffc6 100%);
    color: #006633;
    border: 1px solid #66cc99;
}
.alert.error {
    background: linear-gradient(90deg, #ffe3e3 60%, #ffc6c6 100%);
    color: #990000;
    border: 1px solid #ff9999;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Footer */
footer {
    background: linear-gradient(90deg, #003366 60%, #0066cc 100%);
    color: white;
    padding: 40px 0 20px;
    margin-top: 60px;
    text-align: center;
}
.footer-content {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 20px;
}
footer h3 {
    margin-top: 0;
    font-size: 1.2rem;
    color: #ffcc00;
}
footer a {
    color: #ffcc00;
    text-decoration: underline;
    transition: color 0.3s;
}
footer a:hover {
    color: #fff;
}
.copyright {
    font-size: 0.95rem;
    color: #e3f0ff;
    margin-top: 10px;
}

/* Responsive */
@media (max-width: 900px) {
    .grid-3 {
        flex-direction: column;
        gap: 24px;
    }
    .features {
        grid-template-columns: 1fr;
    }
    .footer-content {
        flex-direction: column;
        gap: 24px;
    }
}