/* ============================================================
   DE CHANGENCY, BASE STYLES (base.css)
   Reset, typografie, globale elementen.
   ============================================================ */

/* ---- Reset ---- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

main a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---- Typografie ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  color: var(--color-dark);
  line-height: 1.25;
}

h1 {
  font-size: var(--fs-2xl);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--fs-xl);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--fs-lg);
}

h4 {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
}

@media (min-width: 768px) {
  h1 { font-size: var(--fs-3xl); }
  h2 { font-size: var(--fs-2xl); }
  h3 { font-size: var(--fs-xl); }
}

@media (min-width: 968px) {
  h1 { font-size: var(--fs-4xl); }
  h2 { font-size: var(--fs-3xl); }
}

/* Witruimte onder sectiekoppen vóór tekst of blok (zoals SAAR Insights) */
main > section > h1,
main > section > h2 {
  margin-bottom: var(--space-title-to-lead);
}

p {
  margin-bottom: var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

strong {
  font-weight: var(--fw-semibold);
}

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

/* ---- Sections ---- */
main section {
  padding: var(--space-3xl) var(--container-pad);
}

main section > *:not(div):not(article) {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
}

main section .cards,
main section .stappen,
main section .testimonials-carousel,
main section .quotes,
main section .principles-list,
main section .toepassing-grid,
main section .resultaten-grid,
main section .contact-info,
main section .contact-booking,
main section > div {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  main section {
    padding: var(--space-4xl) var(--container-pad);
  }
}

/* ---- Afwisselende achtergronden ---- */
main section:nth-child(even) {
  background-color: var(--color-bg-alt);
}

/* ---- Fade-in animatie (sectie-level via JS + html.js-scroll-animations) ---- */
html.js-scroll-animations .section-animate {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

html.js-scroll-animations .section-animate.section-visible {
  opacity: 1;
  transform: translateY(0);
}

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

  html.js-scroll-animations .section-animate,
  html.js-scroll-animations .section-animate.section-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---- Fade-in animatie (element-level) ---- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Screenreader only ---- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}