:root {
  --bg: #05060a;
  --bg-elevated: #0b0d13;
  --accent: #ff4c8b;
  --accent-soft: rgba(255, 76, 139, 0.1);
  --text: #f5f5f7;
  --muted: #9a9aaa;
  --border: #1b1d27;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.6);
  --max-width: 1100px;
  --transition-fast: 0.18s ease-out;
  --transition-med: 0.25s ease;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
}

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

html,
body {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, #141827 0, #05060a 55%, #020308 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
  border-radius: 10px;
}

.section {
  padding: 80px 20px;
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

h1,
h2,
h3 {
  margin: 0 0 16px;
  letter-spacing: 0.02em;
}

h2 {
  font-size: 2.2rem;
}

.section-intro {
  max-width: 540px;
  color: var(--muted);
  margin-bottom: 32px;
  margin: 24px auto;
}

/* Hero / header */

.hero {
  min-height: 100vh;
  padding: 24px 20px 80px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -40%;
  background:
    radial-gradient(circle at 0% 0%, rgba(255, 76, 139, 0.08), transparent 55%),
    radial-gradient(circle at 100% 0%, rgba(80, 180, 255, 0.08), transparent 55%);
  opacity: 0.9;
  pointer-events: none;
}

.hero>* {
  position: relative;
  z-index: 1;
}



.logo {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.logo span {
  color: var(--accent);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  /* alles naar links */
  gap: 16px;
  position: relative;
}

.nav-toggle {
  font-size: 1.8rem;
  background: transparent;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.05);
  transform: scale(1.1);
}




.nav-links {
  position: absolute;
  left: 20px;
  top: 60px;
  flex-direction: column;
  background: rgba(5, 6, 12, 0.95);
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
  gap: 12px;
  display: none;
  z-index: 999;
  min-width: 160px;
}

.nav-links.show {
  display: flex;
}





.nav-links a {
  font-size: 0.95rem;
  color: var(--text);
  padding: 10px 14px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.04);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  text-align: center;
}

.nav-links a:hover {
  background: #00d4ff;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 212, 255, 0.6);
}




/* Hero content */

.hero-content {
  max-width: var(--max-width);
  margin: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.hero-tagline {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  align-items: center;
  color: var(--muted);
}

.hero h1 {
  font-size: clamp(2.6rem, 4vw, 3.4rem);
  max-width: 520px;
  line-height: 1.1;
}

.hero-text {
  max-width: 480px;
  color: var(--muted);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition-med),
    color var(--transition-med),
    box-shadow var(--transition-med),
    transform var(--transition-fast),
    border-color var(--transition-med);
}

.btn.primary,
.btn.ghost {
  background: #00d4ff;
  color: #fff;
  box-shadow: var(--shadow-soft);
}

.btn.primary:hover,
.btn.ghost:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 55px #00d4ff;
}



.btn.full-width {
  width: 100%;
}

/* About */

.about {
  background: radial-gradient(circle at top, #101324 0, #05060a 55%);
}

.about p {
  color: var(--muted);
}

.about-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
  gap: 24px;
}

.about-card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 22px 22px 20px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.about-card h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.about-card ul {
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--text);
}

/* Projects */

.projects {
  background: radial-gradient(circle at top, #0e101d 0, #05060a 60%);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.project-card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 20px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  transition: transform var(--transition-fast),
    box-shadow var(--transition-fast),
    border-color var(--transition-fast);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.project-card::before {
  content: "";
  position: absolute;
  inset: -40%;
  pointer-events: none;

}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
  border-color: #00d4ff;
  transform: translateY(-1px);
  box-shadow: 0 22px 55px #00d4ff;
}

.project-card:hover::before {
  opacity: 1;
}

.project-card h3 {
  font-size: 1.1rem;
}

.project-card p {
  color: var(--muted);
}

.project-tags {
  font-size: 0.85rem;
  margin-top: 10px;
  color: #c3c3d5;
}

.project-link {
  display: inline-flex;
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--accent);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.project-link:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

/* Contact */

.contact {
  background: #05060a;
}

/* Center contact headings/introduction but keep form fields left-aligned */
.contact .section-inner {
  text-align: center;
}

.contact-form {
  text-align: left;
}

.contact-form {
  margin: 24px auto;
  width: 100%;
  max-width: 540px;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  border: 1px solid var(--border);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

label {
  font-size: 0.85rem;
  color: var(--muted);
}

input,
textarea {
  background: #05060a;
  border-radius: 12px;
  border: 1px solid #232432;
  padding: 10px 12px;
  color: var(--text);
  font: inherit;
  outline: none;
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast);
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--accent-soft);
  background: #0a0b12;
}

.form-status {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--muted);
}

/* Footer */

.footer {
  padding: 18px 20px 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

/* Scroll animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* Responsive */





@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }
}