/* =========================
   VARIABLES (BRAND)
========================= */

:root {
  --primary: #2563eb;
  --accent: #7c3aed;
  --soft: #eef2ff;
  --bg1: #f8fafc;
  --bg2: #eef2ff;

  --text: #0f172a;
  --muted: #475569;

  --card: #ffffff;
}

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

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

/* =========================
   BODY (MEER LEVEN)
========================= */

body {
  font-family: Inter, sans-serif;

  background:
    radial-gradient(circle at 20% 10%, rgba(37,99,235,0.10), transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(124,58,237,0.08), transparent 50%),
    linear-gradient(180deg, var(--bg1) 0%, var(--bg2) 100%);

  color: var(--text);
  line-height: 1.6;
}

/* =========================
   HEADER
========================= */

header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;

  padding: 16px 48px;

  display: flex;
  justify-content: space-between;
  align-items: center;

  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(14px);

  border-bottom: 1px solid #e5e7eb;
}

.logo {
  font-family: Orbitron, sans-serif;
  font-weight: 600;
  color: var(--text);
}

nav a {
  margin-left: 16px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
}

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

/* =========================
   HERO (MEER IMPACT)
========================= */

.hero {
  padding: 160px 48px 90px;

  background:
    radial-gradient(circle at 20% 20%, rgba(37,99,235,0.08), transparent 50%),
    radial-gradient(circle at 80% 30%, rgba(124,58,237,0.08), transparent 55%);
}

.hero-inner {
  max-width: 850px;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 14px;
  letter-spacing: -0.6px;
}

p {
  font-size: 1.1rem;
  color: var(--muted);
}

/* =========================
   HIGHLIGHT (BELANGRIJK BLOK)
========================= */

.highlight {
  margin-top: 24px;

  padding: 20px 22px;

  background: white;

  border-left: 5px solid var(--primary);
  border-radius: 14px;

  box-shadow: 0 12px 35px rgba(15, 23, 42, 0.10);

  font-weight: 600;
  color: var(--text);

  position: relative;
}

.highlight::before {
  content: "";
  position: absolute;
  inset: 0;

  border-radius: 14px;

  background: linear-gradient(90deg, rgba(37,99,235,0.06), transparent);

  pointer-events: none;
}

/* =========================
   BUTTONS
========================= */

.buttons {
  margin-top: 28px;
  display: flex;
  gap: 12px;
}

.btn {
  padding: 12px 18px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
}

.primary {
  background: linear-gradient(135deg, var(--primary), #1d4ed8);
  color: white;
  box-shadow: 0 10px 25px rgba(37,99,235,0.25);
}

.primary:hover {
  transform: translateY(-2px);
}

.secondary {
  background: white;
  border: 1px solid #e5e7eb;
  color: var(--text);
}

/* =========================
   SECTIONS
========================= */

.section {
  padding: 100px 48px;
}

/* afwisseling (minder saai) */
.section:nth-of-type(even) {
  background: rgba(255,255,255,0.7);
}

/* =========================
   TITELS (MEER PREMIUM LOOK)
========================= */

.section h2 {
  font-size: 2.2rem;
  font-weight: 800;

  text-align: center;

  margin-bottom: 60px;

  letter-spacing: -0.6px;
  position: relative;
}

.section h2::before {
  content: "";
  position: absolute;

  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  width: 220px;
  height: 60px;

  background: rgba(37,99,235,0.08);
  border-radius: 999px;

  z-index: -1;
}

.section h2::after {
  content: "";
  display: block;

  width: 90px;
  height: 4px;

  margin: 14px auto 0;

  background: linear-gradient(90deg, var(--primary), var(--accent), #06b6d4);

  border-radius: 999px;
}

/* =========================
   LIST ITEMS (BELANGRIJK)
========================= */

.list {
  max-width: 800px;
  margin: auto;
}

.item {
  display: flex;
  align-items: flex-start;
  gap: 14px;

  padding: 18px 18px;
  margin-bottom: 12px;

  background: var(--card);

  border: 1px solid rgba(15, 23, 42, 0.06);
  border-left: 5px solid var(--primary);

  border-radius: 14px;

  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);

  color: var(--muted);

  transition: 0.25s ease;
}

.item:hover {
  transform: translateY(-4px);
  border-left-color: var(--accent);
  box-shadow: 0 18px 40px rgba(37, 99, 235, 0.12);
}

.item::before {
  content: "✓";
  color: #22c55e;
  font-weight: 700;
  margin-top: 2px;
}

/* =========================
   CTA (CONVERSIE BLOK)
========================= */

.cta {
  text-align: center;
  padding: 110px 20px;

  background: linear-gradient(135deg, #1e3a8a, var(--primary));

  color: white;
}

.cta h2 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.cta p {
  color: #dbeafe;
  margin-bottom: 20px;
}

.cta .btn {
  background: white;
  color: var(--primary);
}

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

@media (max-width: 768px) {

  header {
    padding: 14px 20px;
  }

  .hero {
    padding: 130px 20px 60px;
  }

  .buttons {
    flex-direction: column;
  }

  .section {
    padding: 70px 20px;
  }
}