/* ============================================================
   Brantec — basislaag (richting: Kobalt 🔷)
   Reset · typografie · container · secties · helpers
   ============================================================ */

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/inter-var.woff2') format('woff2');
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 7rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: var(--weight-body);
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 { margin: 0; font-weight: var(--weight-heading); line-height: var(--lh-heading); }
p { margin: 0 0 var(--sp-4); }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0 0 var(--sp-4); padding-left: 1.2em; }
li { margin-bottom: var(--sp-1); }

a {
  color: inherit;
  text-decoration: underline 1px;
  text-underline-offset: 5px;
  text-decoration-color: var(--border-functional);
  transition: color var(--dur-fast) var(--ease-standard),
              text-decoration-color var(--dur-fast) var(--ease-standard);
}
a:hover { color: var(--accent-text); text-decoration-color: var(--accent-text); }

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

::selection { background: var(--accent); color: var(--on-accent); }

/* ==== container & secties ====
   BELANGRIJK: container = padding-inline (nooit shorthand — die nult het sectieritme) */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section); }
.section--panel { background: var(--bg-panel); }
.section--flush-top { padding-block-start: 0; }
.section--hero-top { padding-top: clamp(64px, 8vw, 104px); }

.section-head { margin-bottom: var(--sp-7); }

/* ==== kicker: / 01 · LABEL ==== */
.kicker {
  display: inline-block;
  font-size: var(--fs-label);
  font-weight: var(--weight-ui);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  line-height: var(--lh-label);
  color: var(--text-secondary);
  margin-bottom: var(--sp-4);
}
.kicker b { color: var(--accent-text); font-weight: inherit; }

/* ==== koppen ==== */
.display-xl {
  font-size: var(--fs-display-xl);
  font-weight: var(--weight-display);
  line-height: var(--lh-display);
  letter-spacing: var(--tracking-display);
  text-transform: uppercase;
}
.display-l {
  font-size: var(--fs-display-l);
  font-weight: var(--weight-display);
  line-height: var(--lh-display-l);
  letter-spacing: var(--tracking-display-l);
  text-transform: uppercase;
}

.lead {
  font-size: var(--fs-body-l);
  line-height: var(--lh-body-l);
  color: var(--text-secondary);
  max-width: 62ch;
}

.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }

/* ==== helpers ==== */
.skip-link {
  position: absolute;
  left: var(--sp-4);
  top: -100px;
  z-index: 100;
  background: var(--accent);
  color: var(--on-accent);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-md);
  text-decoration: none;
  font-weight: var(--weight-ui);
}
.skip-link:focus { top: var(--sp-4); } /* keyboard-actie: verschijnt direct, geen beweging */

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ==== reveal (scroll) — alleen mét JS; zonder JS is alles zichtbaar ==== */
html.js .reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}
html.js .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html.js .reveal { transform: none; } /* fade blijft (150ms), beweging weg */
}