/* =========================
   BASE RESET
========================= */

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

body {
  font-family: 'Inter', sans-serif;
  background: #050816;
  color: white;
  overflow-x: hidden;
}

/* =========================
   HERO
========================= */

.hero {
  min-height: 30vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 130px 2px 1px;

  background:
    radial-gradient(circle at top left, rgba(37,99,235,0.35), transparent 40%),
    radial-gradient(circle at bottom right, rgba(147,51,234,0.30), transparent 40%),
    #050816;
}

.hero-inner {
  max-width: 900px;
}

.hero h1 {
  font-size: 4rem;
  font-family: 'Orbitron', sans-serif;
  margin-bottom: 20px;
}

.hero p {
  color: #cbd5e1;
  font-size: 1.1rem;
  line-height: 1.8;
}

/* =========================
   SECTION
========================= */

.section {
  max-width: 1100px;
  margin: auto;
  padding: 1px 2px;
}

.section-title {
  text-align: center;
  margin-top: 50px;
  margin-bottom: 30px;
}

.section-title h2 {
  font-size: 2.5rem;
  font-family: 'Orbitron', sans-serif;
}

.section-title p {
  color: #94a3b8;
}

/* =========================
   TIMELINE ZIGZAG
========================= */

.timeline {
  position: relative;
  display: grid;
  gap: 30px;
  padding: 40px 0;
}

/* centrale lijn */
.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: rgba(255,255,255,0.10);
  transform: translateX(-50%);
}

/* =========================
   CARDS
========================= */

.timeline-card {
  width: 45%;
  padding: 28px;
  border-radius: 20px;
  position: relative;

  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.08);

  transition: 0.25s ease;
}

/* LINKS */
.timeline-card:nth-child(odd) {
  justify-self: start;
  transform: translateX(-10px);
}

/* RECHTS */
.timeline-card:nth-child(even) {
  justify-self: end;
  transform: translateX(10px);
}

/* hover */
.timeline-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

/* =========================
   STEP CIRCLE
========================= */

.step {
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);

  width: 34px;
  height: 34px;
  border-radius: 50%;

  display: grid;
  place-items: center;

  font-size: 0.75rem;
  font-weight: 500;

  color: rgba(255, 255, 255, 0.55);

  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);

  backdrop-filter: blur(8px);

  z-index: 2;

  /* belangrijk: minder “visueel gewicht” */
  box-shadow: none;
}
/* =========================
   COLORS (INTENSE KEEPERS)
========================= */

.timeline-card:nth-child(1) {
  background: linear-gradient(135deg, #6366f1, #2563eb);
}

.timeline-card:nth-child(2) {
  background: linear-gradient(135deg, #22c55e, #16a34a);
}

.timeline-card:nth-child(3) {
  background: linear-gradient(135deg, #06b6d4, #2563eb);
}

.timeline-card:nth-child(4) {
  background: linear-gradient(135deg, #7c3aed, #4f46e5);
}

.timeline-card:nth-child(5) {
  background: linear-gradient(135deg, #ec4899, #db2777);
}

.timeline-card:nth-child(6) {
  background: linear-gradient(135deg, #f97316, #ea580c);
}

/* betere tekst contrast */
.timeline-card h3,
.timeline-card p {
  color: white;
}

/* =========================
   CTA
========================= */

.cta {
  text-align: center;
  margin-top: 70px;
}

.btn {
  display: inline-block;
  padding: 16px 28px;
  border-radius: 14px;
  text-decoration: none;
  color: white;
  font-weight: 600;

  background: linear-gradient(135deg, #2563eb, #9333ea);
  transition: 0.3s;
}

.btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 30px rgba(37,99,235,0.35);
}

/* =========================
   FOOTER
========================= */

footer {
  text-align: center;
  padding: 60px 20px;
  color: #64748b;
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-card {
    width: 100%;
    justify-self: start !important;
    transform: none !important;
    padding-left: 50px;
  }

  .step {
    left: 20px;
    transform: translateX(-50%);
  }
}