/* ===== Root Colors ===== */
:root {
  --bg-body: #f4f4f9;
  --color-text: #333;
  --color-text-light: #555;
  --color-primary: #1a1a1a;
  --color-accent: #ffdd57;
  --color-card-bg: #fff;
  --color-filter-bg: #222;
  --color-footer-text: #fff;
  --color-error: #666;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--color-text);
  background: var(--bg-body);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  line-height: 1.6;
}

/* ===== Header ===== */
header {
  background: var(--color-primary);
  color: var(--color-footer-text);
  padding: 1.2rem 1rem;
  text-align: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

nav {
  margin-top: 0.5rem;
}

nav a {
  margin: 0 1rem;
  color: var(--color-footer-text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

nav a:hover {
  color: var(--color-accent);
}

nav a.active {
  font-weight: 700;
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 2px;
}

/* ===== Main Content ===== */
main {
  flex: 1;
  max-width: 950px;
  margin: auto;
  padding: 2rem 1rem;
  text-align: center;
}

/* ===== Cards ===== */
.card {
  background: var(--color-card-bg);
  border-radius: 14px;
  padding: 2rem;
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
  text-align: center;
}

.profile-pic {
  width: 150px;
  border-radius: 50%;
  margin-bottom: 1rem;
}

/* ===== Skills ===== */
.skills-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  padding: 0;
  margin-top: 1rem;
}


/* ===== Projects Grid ===== */

.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.3rem;
  margin-top: 1rem;
}

.project-card {
  background: var(--color-card-bg);
  padding: 1.2rem;
  border-radius: 14px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
  text-align: left;
}

.project-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.project-card h3 {
  margin: 0.5rem 0 0.8rem 0;
  font-size: 1.2rem;
  color: #222;
}

.project-card p {
  font-size: 0.95rem;
  color: var(--color-text-light);
}

.project-img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 0.8rem;
  display: block;
}

/* ===== Modal ===== */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0; top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.75);
  justify-content: center;
  align-items: center;
  padding: 1rem;
  overflow-y: auto;
}

.modal-content {
  background: var(--color-card-bg);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  border-radius: 16px;
  position: relative;
  text-align: left;
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.modal-content img {
  max-width: 100%;
  border-radius: 12px;
  margin-bottom: 1rem;
  display: block;
}

.modal-content h2 {
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.modal-content p {
  margin-bottom: 1rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.close {
  position: absolute;
  top: 12px;
  right: 18px;
  font-size: 28px;
  font-weight: bold;
  color: var(--color-text);
  border: none;
  background: none;
  cursor: pointer;
  transition: color 0.2s;
  z-index: 10;
}

.close:hover {
  color: #ff5555;
}

/* ===== Techniques (cards) ===== */
.tech-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.filter-tag {
  background: var(--color-filter-bg); /* wit */
  color: var(--color-footer-text); /* donkere tekst */
  border-radius: 10px;
  padding: 0.55rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  border: 2px solid var(--color-primary);
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
  display: inline-block;
}

.filter-tag:hover {
  color: var(--color-accent); /* geel */
  border-color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 4px;
  transform: translateY(-2px);
}


/* ===== Messages ===== */
.error, .empty {
  color: var(--color-error);
  padding: 1rem;
  font-style: italic;
}

/* ===== Footer ===== */
footer {
  background: var(--color-primary);
  color: var(--color-footer-text);
  text-align: center;
  padding: 1.2rem;
  margin-top: 1.5rem;
  font-size: 0.95rem;
}

footer a {
  color: var(--color-footer-text);
  text-decoration: none;
  margin: 0 0.5rem;
  transition: color 0.3s;
}

footer a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  main { padding: 1.5rem 0.8rem; }
  .modal-content { padding: 1.2rem; max-height: 85vh; }
  .project-card h3 { font-size: 1.1rem; }
  .project-card p { font-size: 0.9rem; }
  .tech-card { font-size: 0.85rem; padding: 0.4rem 0.8rem; }
}