/* =========================================================
   BALLPINNETJE — basisstijl 2027
   Licht, snel, responsive, zonder frameworks.

   ARCHITECTUUR:
   1. Centrale variabelen
   2. Basis
   3. Header
   4. Hero
   5. Actueel / weblog
   6. Vier werelden
   7. Gedachte
   8. Footer
   9. Responsive
   ========================================================= */


/* CENTRALE VARIABELEN ======================================= */

:root {
  /* Huisstijl */
  --blue: #0a3fa8;
  --blue-dark: #062b74;
  --blue-soft: #eaf1ff;

  --yellow: #f2c400;
  --yellow-dark: #c89f00;
  --yellow-soft: #fff8cf;

  /* Tekst en lijnen */
  --ink: #171717;
  --muted: #626262;
  --line: #dedede;

  /* Grote vlakken — hier kun je later makkelijk mee spelen */
  --paper: #ffffff;
  --surface: #f6f7f9;
  --header: rgba(246, 248, 251, 0.92);
  --footer: #f6f7f9;

  /* Maten en effecten */
  --max-width: 1180px;
  --radius: 24px;
  --shadow: 0 12px 38px rgba(0, 0, 0, 0.08);
  --transition: 180ms ease;
}


/* BASIS ====================================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img,
svg {
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  padding: 0.8rem 1rem;
  color: white;
  background: var(--blue-dark);
  border-radius: 10px;
}

.skip-link:focus {
  top: 1rem;
}


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

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(10, 63, 168, 0.10);
  background: var(--header);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-inner {
  width: min(calc(100% - 2rem), var(--max-width));
  min-height: 76px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-name {
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--yellow-dark);
}

.brand-name strong {
  color: var(--blue);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.main-nav a {
  padding: 0.7rem 0.9rem;
  color: var(--muted);
  text-decoration: none;
  border-radius: 999px;
  transition:
    background var(--transition),
    color var(--transition),
    transform var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--blue-dark);
  background: var(--blue-soft);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}


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

.hero {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 8rem) 0 clamp(3rem, 6vw, 6rem);
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--blue);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  color: var(--blue);
  font-size: clamp(3.4rem, 10vw, 8.5rem);
  line-height: 0.9;
  letter-spacing: -0.075em;
}

.hero-line {
  max-width: 760px;
  margin: 1.5rem 0 0;
  color: var(--yellow-dark);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 700;
}

.hero-text {
  max-width: 680px;
  margin: 1.25rem 0 2rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
}

.primary-button,
.secondary-button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    background var(--transition);
}

.primary-button {
  padding: 0.85rem 1.3rem;
  color: white;
  background: var(--blue);
  text-decoration: none;
  box-shadow: 0 8px 22px rgba(10, 63, 168, 0.18);
}

.primary-button:hover {
  transform: translateY(-2px);
  background: var(--blue-dark);
}

.hero-mark {
  min-height: 330px;
  display: grid;
  place-items: center;
  border-radius: 44px;
  background:
    radial-gradient(
      circle at 50% 45%,
      rgba(242, 196, 0, 0.16),
      transparent 48%
    ),
    linear-gradient(145deg, var(--blue-soft), var(--yellow-soft));
}

.hero-logo {
  width: 70%;
  height: auto;
  display: block;
}


/* ACTUEEL / WEBLOG ========================================== */

.home-bridge {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 0 0 clamp(2rem, 5vw, 4rem);
  display: grid;
  grid-template-columns: 1fr minmax(320px, 520px) 1fr;
  gap: 2rem;
  align-items: start;
}

.breadcrumb {
  grid-column: 1;
  padding-top: 1rem;
}

.breadcrumb ol {
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.5rem;
  list-style: none;
  color: var(--muted);
  font-size: 0.95rem;
}

.breadcrumb a {
  color: var(--blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.latest-card {
  grid-column: 2;
  width: 100%;
  padding: 1.6rem 1.8rem;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(
      145deg,
      rgba(234, 241, 255, 0.55),
      rgba(255, 248, 207, 0.40)
    );
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

.latest-card .eyebrow {
  margin-bottom: 0.25rem;
}

.latest-card h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  line-height: 1.2;
}

.latest-list {
  min-height: 6.5rem;
  margin: 1rem 0 1.25rem;
  padding: 0;
  display: grid;
  gap: 0.35rem;
  list-style: none;
  color: var(--muted);
}

.latest-list li {
  min-height: 1.4rem;
}

.latest-link {
  color: var(--blue-dark);
  font-weight: 800;
  text-decoration: none;
}

.latest-link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}


/* VIER WERELDEN ============================================= */

.worlds {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 5rem) 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 2.4rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 1;
  letter-spacing: -0.045em;
}

.section-heading p:last-child {
  color: var(--muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.world-card {
  min-height: 300px;
  padding: clamp(1.5rem, 3vw, 2.4rem);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  transition:
    transform var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.world-card:hover {
  transform: translateY(-4px);
  border-color: rgba(10, 63, 168, 0.25);
  box-shadow: var(--shadow);
}

.world-card:nth-child(2),
.world-card:nth-child(3) {
  background: linear-gradient(145deg, #ffffff, #fffdf1);
}

.card-number {
  color: var(--yellow-dark);
  font-weight: 850;
}

.world-card h3 {
  margin: auto 0 0.4rem;
  color: var(--blue);
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1;
}

.world-card p {
  max-width: 520px;
  margin: 0 0 1.4rem;
  color: var(--muted);
}

.world-card a {
  color: var(--blue-dark);
  font-weight: 800;
  text-decoration: none;
}


/* BALLPINNETJE-GEDACHTE ===================================== */

.thought {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: clamp(2rem, 5vw, 5rem) auto;
  padding: clamp(2rem, 5vw, 4.5rem);
  text-align: center;
  border-radius: var(--radius);
  background: var(--blue-soft);
}

.thought blockquote {
  max-width: 900px;
  margin: 0.8rem auto 1.5rem;
  color: var(--blue-dark);
  font-size: clamp(1.7rem, 5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
  font-weight: 800;
}

.secondary-button {
  padding: 0.75rem 1.1rem;
  color: var(--blue-dark);
  background: white;
  border: 1px solid rgba(10, 63, 168, 0.18);
}

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


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

.site-footer {
  margin-top: 5rem;
  padding: 3rem 0 1.5rem;
  color: var(--ink);
  background: var(--footer);
}

.footer-inner {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr auto;
  gap: 2rem;
  align-items: start;
}

.footer-brand {
  min-width: 0;
}

.footer-brand-name {
  display: inline-block;
  font-size: 1.2rem;
  line-height: 1.2;
}

.brand-blue {
  color: var(--blue);
}

.brand-yellow {
  color: var(--yellow-dark);
}

.footer-inner p {
  margin: 0.3rem 0 0;
  color: var(--muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.55rem 1.5rem;
}

.footer-nav a {
  color: var(--blue);
  text-underline-offset: 4px;
}

.copyright {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 2rem auto 0;
  padding-top: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}

.footer-signatuur {
  width: 150px;
  max-width: 70%;
  height: auto;
  display: block;
  flex: 0 0 auto;
}


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

@media (max-width: 820px) {
  .header-inner {
    gap: 1rem;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.5rem);
    padding: 0.7rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--paper);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    padding: 0.9rem 1rem;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 3rem;
  }

  .hero-mark {
    min-height: 280px;
  }

  .home-bridge {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .breadcrumb,
  .latest-card {
    grid-column: 1;
  }

  .breadcrumb {
    padding-top: 0;
  }

  .latest-card {
    max-width: 560px;
    justify-self: center;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .world-card {
    min-height: 250px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-nav {
    justify-content: flex-start;
  }

  .copyright {
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  .copyright {
    flex-direction: column;
  }

  .footer-signatuur {
    max-width: 150px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    min-height: 68px;
  }

  .brand-name {
    font-size: 1.15rem;
  }

  .hero h1 {
    font-size: clamp(3rem, 18vw, 5rem);
  }

  .hero-mark {
    min-height: 235px;
  }

  .thought {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}