/* Algemene styling */
:root {
    --primary-color: #007bff; /* Een mooie blauwe kleur voor accenten */
    --secondary-color: #f8f9fa; /* Lichte achtergrondkleur voor secties */
    --text-color: #1c2024; /* Donkere tekstkleur */
    --light-text-color: #e7e7e7; /* Lichtere tekstkleur voor minder belangrijke teksten */
    --heading-color: #3f4449; /* Kleur voor koppen */
    --white: #ffffff; /* Witte kleur */
    --border-color: #dee2e6; /* Kleur voor randen */
}

html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--white);
    color: var(--text-color);
    scroll-behavior: smooth;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    margin-bottom: 0.8em;
}

p {
    margin-bottom: 1em;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* Header styling */
header {
    background-color: var(--heading-color);
    color: var(--white);
    padding-left: 24px;
    padding-right: 24px;
    padding-top: 12px;
    padding-bottom: 12px;
    text-align: left;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
    position: relative;
    top: 0;
    z-index: 1000;
    display: flex;
    flex-direction: row;
    align-items: center;
    height: 60px;
    vertical-align: middle;
}

header h1 {
    color: var(--white);
    margin: 0;
    font-size: 2.5em;
    padding-right: 24px;
    letter-spacing: 2px;
    vertical-align: middle;
}

header nav ul {
    display: flex;
    justify-content: center;
    align-items: center;
    justify-self: center;
    flex-wrap: wrap; /* Voor kleinere schermen */
    vertical-align: middle;
}

header nav ul li a {
    color: var(--white);
    font-weight: normal;
    padding: 5px 10px;
    border-radius: 5px;
    transition: background-color 0.3s ease-in-out;
    vertical-align: middle;
}

header nav ul li a:hover, header nav ul li a.active {
    background-color: rgba(255, 255, 255, 0.2);
    text-decoration: none;
    font-weight: bold;
}

/* Main content styling */

main {
    padding: 0;
    margin: 0;
    width: 100%;
}

section {
    background-color: var(--secondary-color);
    margin-bottom: 30px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease-in-out;
}

section h2 {
    text-align: center;
    margin-bottom: 1.5em;
    color: var(--primary-color);
    font-size: 2em;
    position: relative;
}


/* Telefoon selectie dropdowns */
.telefoon-selectie {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.dropdown-group {
  flex: 1;
  min-width: 200px;
}

.dropdown-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 600;
}

.dropdown-group select {
  width: 100%;
  padding: 10px;
  border: 2px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
  background-color: white;
}

.dropdown-group select:disabled {
  background-color: #f5f5f5;
  color: #999;
  cursor: not-allowed;
}

.dropdown-group select:focus {
  border-color: #007bff;
  outline: none;
}

@media (max-width: 600px) {
  .telefoon-selectie {
    flex-direction: column;
    gap: 10px;
  }
  
  .dropdown-group {
    min-width: 100%;
  }
}