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

:root {
    --primary-color: oklch(38% 0.13 268);
    --secondary-color: oklch(46% 0.31 267);
    --light-gray: oklch(96% 0.01 260);
    --border-color: oklch(85% 0.01 260);
    --spacing: 1rem;
    
}

body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.5;
    color: oklch(29% 0.03 18);
    background-color: oklch(100% 0 0);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing) 0;
}

.site-header {
    padding: var(--spacing);
    background-color: oklch(49.829% 0.18248 260.113 / 0.6);
    border-bottom: 2px solid var(--primary-color);
    text-align: center;
}

.site-title {
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.nav-list,
.footer-links {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

h1, h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;

}

h3 {
  font-size: 1.5rem;
}

p {
  font-size: 1.25rem;
}

a {
    color: var(--secondary-color);
    font-weight: bold;
    position: relative;
    text-decoration: none;
    transition: color 1s;
}

a:hover { 
    color: oklch(82.537% 0.1452 214.121); 
    text-decoration: underline;
    transform: translateY(-2px);

}

a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  background-color: currentColor;
  transition: width 0.3s ease;
}

a:hover::after {
  width: 100%;
}

.intro {
    text-align: center;
    margin-bottom: 2rem;
}

.intro-image,
.opdracht-card img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 1rem auto;
}

.opdrachten { margin-bottom: 2rem; }

.opdrachten-lijst {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.opdracht-card {
    background-color: oklch(lightness chroma hue);
    border: 10px solid var(black);
    border-radius: 3rem;
    padding: var(--spacing);
    text-align: center;
    transition: transform 0.5s ease, box-shadow 0.5s ease;

}

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


.opdracht-card:hover h3, 
.opdracht-card:hover p,
.opdracht-card:hover a {
  color: black ;

}

.opdracht-card:hover {
    background-color: oklch(46% 0.31 267);
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(118, 107, 107, 0.15);
}

.site-footer {
    padding: var(--spacing);
    background-color: oklch(95% 0.01 260);
    text-align: center;
}

.footer-location img {
    vertical-align: middle;
}

#btnsubmit {
    background-color: #2563eb;
    color: #fff;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease, box-shadow 0.1s ease;
}

#btnsubmit:hover {
    background-color: #1e40af;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

#btnsubmit:active {
    transform: translateY(1px);
}

#btnsubmit:disabled {
    background-color: #9ca3af;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-link {
  position: relative;
  color: oklch(38% 0.13 268);
  text-decoration: none;
  transition: color 0.2s;
}

.btn-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width 0.3s;
}

.btn-link:hover {
  color: oklch(46% 0.31 267);
  transform: translateY(-2px);
}

.btn-link:hover::after {
  width: 100%;
}

.contact-form {
  max-width: 500px;
  margin: 3rem auto;
  padding: 2rem;
  background: var(--light-gray);
  border-radius: 2rem;
  box-shadow: 0 10px 30px rgba(0,0,0,.1);
}

.contact-form h1 {
  text-align: center;
}

.form-group {
  margin-bottom: 1.25rem;
}

.contact-form label {
  display: block;
  font-weight: bold;
  margin-bottom: .25rem;
  color: var(--primary-color);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: .75rem;
  border-radius: .75rem;
  border: 1px solid var(--border-color);
  font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--secondary-color);
}

.faq {
  max-width: 700px;
  margin: 3rem auto;
}

.faq-item {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.faq-item p {
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity 0.3s ease, max-height 0.3s ease;
}

.faq-item:hover p {
  opacity: 1;
  max-height: 200px;
}

.faq-item:hover h3 {
  color: var(--secondary-color);
}

.form-group p {
  font-weight: bold;
  margin-bottom: .5rem;
}

.form-group label {
  display: block;
  cursor: pointer;
}