/* ────────────────────────────────────────────────────────────────────────────
   ci-bv.nl · design system "De Vaste Plaats"
   ArenA signal red (sampled from the stadium's own signage) for CTAs on warm
   paper; night ink; certificate gold for the perpetual-right accent; Playfair
   Display (self-hosted) for the deed/document feel over a system sans body.
   The seat-row divider: one gold seat among the red, your fixed seat among
   thousands. Zero webfonts beyond the two Playfair files, zero cookies,
   zero third-party anything.
   ──────────────────────────────────────────────────────────────────────────── */

@font-face {
  font-family: 'Playfair Display';
  src: url('../fonts/playfair-600.woff2') format('woff2');
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Playfair Display';
  src: url('../fonts/playfair-700.woff2') format('woff2');
  font-weight: 700; font-style: normal; font-display: swap;
}

:root {
  --rood: #c8102e;
  --rood-diep: #9c0c24;
  --inkt: #16181f;
  --soft: #565a66;
  --paper: #faf8f4;
  --card: #ffffff;
  --cream: #fdfbf5;
  --lijn: #e7e2d8;
  --goud: #8a6a1f;        /* text-safe certificate gold (WCAG on paper) */
  --goud-licht: #c9a227;  /* decorative gold: the seat, borders, ribbons */
  --display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
[hidden] { display: none !important; }  /* the korverbv lesson: survives any display: rule */
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
body { font-family: var(--sans); color: var(--inkt); background: var(--paper); line-height: 1.65; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--rood-diep); }
.skip { position: absolute; left: -9999px; top: 0; background: var(--goud-licht); color: var(--inkt);
        padding: 10px 18px; font-weight: 700; z-index: 99; }
.skip:focus { left: 0; }
:focus-visible { outline: 3px solid var(--goud-licht); outline-offset: 2px; }

/* the certificate ribbon: red band with a gold thread */
.topline { height: 7px; background: var(--rood); border-bottom: 2px solid var(--goud-licht); }

/* ── wordmark ── */
.wm { font-family: var(--display); font-weight: 700; font-size: 1.7rem;
      letter-spacing: .01em; line-height: 1; display: inline-flex; align-items: baseline; gap: .3rem; }
.wm-ci { color: var(--inkt); }
.wm-bv { font-size: .9rem; color: var(--goud); letter-spacing: .06em; }
.site-footer .wm-ci { color: var(--paper); }
.site-footer .wm-bv { color: var(--goud-licht); }  /* paper-gold fails contrast on ink */

/* ── header ── */
.site-header { display: flex; align-items: center; gap: .8rem 1.4rem; flex-wrap: wrap;
  padding: .9rem clamp(1rem, 3vw, 2.6rem); background: var(--card);
  border-bottom: 1px solid var(--lijn); }
@media (min-width: 901px) {
  html { scroll-padding-top: 96px; }
  .site-header { position: sticky; top: 0; z-index: 50;
    box-shadow: 0 2px 14px rgba(22, 24, 31, .07); }
}
.brand { text-decoration: none; display: flex; flex-direction: column; gap: .12rem; }
.brand-sub { font-size: .68rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--soft); }
.site-nav { display: flex; gap: .2rem; margin-left: auto; }
.site-nav a { text-decoration: none; color: var(--inkt); font-weight: 600; font-size: .95rem;
  padding: .45rem .8rem; border-radius: 8px; white-space: nowrap; }
.site-nav a:hover { background: var(--paper); }
.site-nav a.is-active { background: var(--paper); box-shadow: inset 0 -2px 0 var(--rood); }
.header-side { display: flex; align-items: center; gap: .9rem; }
.lang-switch { font-size: .85rem; font-weight: 600; color: var(--soft); text-decoration: none;
  border-bottom: 1px solid var(--lijn); white-space: nowrap; }
.lang-switch:hover { color: var(--inkt); border-color: var(--goud-licht); }
@media (max-width: 900px) {
  .site-nav { order: 3; width: 100%; overflow-x: auto; scrollbar-width: none; margin-left: 0; }
  .site-nav::-webkit-scrollbar { display: none; }
  .header-side { margin-left: auto; }
}

/* ── buttons ── */
.btn { display: inline-block; text-decoration: none; font-weight: 700; font-size: .98rem;
  padding: .78rem 1.5rem; border-radius: 10px; text-align: center; border: 2px solid transparent; }
.btn-red { background: var(--rood); color: #fff; }
.btn-red:hover { background: var(--rood-diep); }
.btn-gold { background: var(--goud-licht); color: var(--inkt); }
.btn-gold:hover { background: #b8911d; }
.btn-ghost { border-color: var(--inkt); color: var(--inkt); background: transparent; }
.btn-ghost:hover { background: var(--inkt); color: var(--paper); }
.header-cta { padding: .55rem 1.1rem; font-size: .9rem; }
.text-link { font-weight: 700; color: var(--rood-diep); text-decoration: none;
  border-bottom: 2px solid var(--goud-licht); }
.text-link:hover { color: var(--inkt); }

/* ── hero ── */
.hero { position: relative; }
.hero-img { width: 100%; height: clamp(340px, 56vh, 560px); object-fit: cover;
  object-position: 50% 42%; }
.hero-panel { position: relative; margin: -110px auto 0; width: min(46rem, calc(100% - 2rem));
  background: var(--card); border-radius: 14px; padding: clamp(1.4rem, 4vw, 2.6rem);
  box-shadow: 0 18px 50px rgba(22, 24, 31, .16); border-top: 4px solid var(--rood); }
.kicker { font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--goud); margin-bottom: .6rem; }
.hero-panel h1 { font-family: var(--display); font-weight: 700;
  font-size: clamp(1.7rem, 4.4vw, 2.6rem); line-height: 1.15; margin-bottom: .8rem; }
.hero-sub { color: var(--soft); margin-bottom: 1.2rem; max-width: 38rem; }
.hero-ctas { display: flex; gap: .8rem; flex-wrap: wrap; }
.hero-chips { display: flex; justify-content: center; flex-wrap: wrap; gap: .5rem;
  margin: 1.3rem auto 0; padding: 0 1rem; max-width: 52rem; }
.hero-chips span { font-size: .8rem; font-weight: 700; padding: .35rem .85rem;
  border: 1px solid var(--goud-licht); border-radius: 999px; background: var(--cream);
  color: var(--inkt); white-space: nowrap; }
@media (max-width: 600px) {
  .hero-img { height: 46vh; }
  .hero-panel { margin-top: -70px; }
  .hero-ctas .btn { flex: 1 1 0; white-space: nowrap; font-size: .86rem; padding: .7rem .6rem; }
}

/* ── sections shared ── */
section { padding: clamp(2.6rem, 6vw, 4.6rem) clamp(1rem, 4vw, 2.6rem); }
.section-head { text-align: center; max-width: 46rem; margin: 0 auto 2.2rem; }
.section-head h1, .section-head h2 { font-family: var(--display); font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem); line-height: 1.2; margin-bottom: .6rem; }
.section-head p { color: var(--soft); }
.section-head-left { text-align: left; margin: 0 0 1.8rem; }
.center { text-align: center; margin-top: 1.8rem; }

/* ── the seat-row divider ── */
.seats { max-width: 34rem; margin: 0 auto; padding: 0 1rem; }
.seats svg { width: 100%; height: 40px; display: block; }
.seat-a { fill: var(--rood); }
.seat-b { fill: var(--rood-diep); }
.seat-gold { fill: var(--goud-licht); }
.prose .seats { margin: 1.6rem 0 1.8rem; padding: 0; max-width: 22rem; }

/* ── advantages ── */
.advantages { background: var(--card); border-top: 1px solid var(--lijn);
  border-bottom: 1px solid var(--lijn); }
.adv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.1rem; max-width: 72rem; margin: 0 auto; }
.adv-card { background: var(--paper); border: 1px solid var(--lijn); border-radius: 12px;
  padding: 1.3rem 1.2rem; }
.adv-icon { width: 30px; height: 30px; color: var(--goud); margin-bottom: .7rem; }
.adv-card h3 { font-family: var(--display); font-size: 1.08rem; margin-bottom: .4rem; }
.adv-card p { font-size: .92rem; color: var(--soft); }

/* ── proof ── */
.proof-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.1rem; max-width: 64rem; margin: 0 auto; }
.proof-grid figure { background: var(--card); border: 1px solid var(--lijn);
  border-radius: 12px; overflow: hidden; }
.proof-grid img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.proof-grid figcaption { padding: .7rem .9rem; font-size: .85rem; color: var(--soft); }

/* ── certificate cards (the aanbod) ── */
.cert-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem; max-width: 64rem; margin: 0 auto; }
.cert-grid-page { margin-top: 1.6rem; }
.cert-card { background: var(--cream); border: 1px solid var(--goud-licht); border-radius: 4px;
  padding: 1.5rem 1.4rem; box-shadow: inset 0 0 0 1px var(--card), inset 0 0 0 2px #e6d9b8; }
.cert-status { display: inline-block; font-size: .72rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; color: var(--goud);
  border: 1px solid var(--goud-licht); border-radius: 999px; padding: .2rem .7rem;
  margin-bottom: .8rem; }
.cert-gereserveerd .cert-status { color: var(--soft); border-color: var(--lijn); }
.cert-verkocht { opacity: .62; }
.cert-verkocht .cert-status { color: var(--soft); border-color: var(--lijn); }
.cert-card h3 { font-family: var(--display); font-size: 1.15rem; margin-bottom: .3rem; }
.cert-loc { font-size: .85rem; font-weight: 700; color: var(--goud); margin-bottom: .5rem; }
.cert-card p { font-size: .93rem; color: var(--soft); }
.cert-price { font-weight: 700; color: var(--inkt); margin-top: .6rem; }
.cert-card .text-link { display: inline-block; margin-top: .8rem; }
.aanbod-empty { max-width: 44rem; margin: 0 auto; text-align: center; color: var(--soft);
  background: var(--cream); border: 1px dashed var(--goud-licht); border-radius: 12px;
  padding: 1.6rem 1.4rem; }
.aanbod-note { max-width: 44rem; margin: 1.6rem auto 0; color: var(--soft); font-size: .95rem; }

/* ── steps ── */
.steps { background: var(--inkt); color: var(--paper); }
.steps-inner { display: grid; grid-template-columns: 1fr 1.2fr; gap: 2.4rem;
  max-width: 66rem; margin: 0 auto; align-items: start; }
.steps-text h2 { font-family: var(--display); font-size: clamp(1.5rem, 3.2vw, 2rem);
  margin-bottom: .7rem; }
.steps-text p { color: #c3c6cf; margin-bottom: 1rem; }
.steps-list { list-style: none; counter-reset: step; }
.steps-list li { counter-increment: step; display: grid;
  grid-template-columns: 2.4rem 1fr; gap: .3rem .9rem; padding: .9rem 0;
  border-bottom: 1px solid #2b2e39; }
.steps-list li::before { content: counter(step); font-family: var(--display);
  font-weight: 700; font-size: 1.3rem; color: var(--goud-licht);
  grid-row: span 2; align-self: start; padding-top: .1rem; }
.steps-list strong { font-size: 1.02rem; }
.steps-list span { color: #c3c6cf; font-size: .93rem; grid-column: 2; }
@media (max-width: 800px) { .steps-inner { grid-template-columns: 1fr; } }

/* ── kennis ── */
.kennis-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.1rem; max-width: 64rem; margin: 0 auto; }
.kennis-card { background: var(--card); border: 1px solid var(--lijn); border-radius: 12px;
  padding: 1.3rem 1.2rem; text-decoration: none; color: var(--inkt);
  display: flex; flex-direction: column; gap: .5rem; }
.kennis-card:hover { border-color: var(--goud-licht); box-shadow: 0 6px 22px rgba(22, 24, 31, .08); }
.kennis-card h3 { font-family: var(--display); font-size: 1.08rem; line-height: 1.3; }
.kennis-card p { font-size: .9rem; color: var(--soft); flex: 1; }
.kennis-card .text-link { font-size: .9rem; align-self: flex-start; }
.kennis-grid-page { margin-top: 1.6rem; }

/* ── faq ── */
.faq-list { max-width: 46rem; margin: 0 auto; }
.faq-item { background: var(--card); border: 1px solid var(--lijn); border-radius: 10px;
  margin-bottom: .7rem; }
.faq-item summary { cursor: pointer; font-weight: 700; padding: .95rem 1.2rem;
  list-style-position: inside; }
.faq-item summary:hover { color: var(--rood-diep); }
.faq-item p { padding: 0 1.2rem 1.1rem; color: var(--soft); }

/* ── cta band ── */
.ctaband { background: var(--rood); color: #fff; text-align: center; }
.ctaband h2 { font-family: var(--display); font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  margin-bottom: .6rem; }
.ctaband p { max-width: 40rem; margin: 0 auto 1.4rem; color: #ffd9de; }

/* ── subpages / prose ── */
.page { max-width: 52rem; margin: 0 auto; padding: 1.8rem clamp(1rem, 4vw, 2rem) 3rem; }
.breadcrumb { font-size: .85rem; color: var(--soft); margin-bottom: 1.6rem; }
.breadcrumb a { color: var(--soft); }
.breadcrumb span { margin: 0 .3rem; color: var(--lijn); }
.prose h1 { font-family: var(--display); font-weight: 700;
  font-size: clamp(1.6rem, 4vw, 2.3rem); line-height: 1.18; margin-bottom: .9rem; }
.prose .intro { font-size: 1.12rem; color: var(--soft); margin-bottom: 1.2rem; }
.prose h2 { font-family: var(--display); font-weight: 600; font-size: 1.35rem;
  margin: 1.8rem 0 .6rem; }
.prose p { margin-bottom: 1rem; }
.prose-img { margin: 1.6rem 0; }
.prose-img img { border-radius: 12px; }
.prose-img figcaption { font-size: .85rem; color: var(--soft); padding-top: .5rem; }
.page-photo { margin: 0 0 1.8rem; }
.page-photo img { border-radius: 12px; }
.page .section-head-left h1 { font-family: var(--display); font-weight: 700;
  font-size: clamp(1.6rem, 4vw, 2.3rem); line-height: 1.18; margin-bottom: .6rem; }
.related { margin-top: 2.6rem; padding-top: 1.4rem; border-top: 1px solid var(--lijn); }
.related h2 { font-family: var(--display); font-size: 1.15rem; margin-bottom: .6rem; }
.related ul { list-style: none; }
.related li { margin-bottom: .4rem; }
.page-kennis .kicker { margin-bottom: .4rem; }

/* ── form ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 2.4rem; align-items: start; }
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-form { background: var(--card); border: 1px solid var(--lijn); border-radius: 14px;
  padding: 1.6rem 1.5rem; display: flex; flex-direction: column; }
.contact-form label { font-weight: 700; font-size: .9rem; margin: .9rem 0 .3rem; display: block; }
.contact-form label:first-child { margin-top: 0; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; padding: .7rem .8rem; border: 1px solid var(--lijn); border-radius: 8px;
  font: inherit; background: var(--paper); color: var(--inkt); }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: 2px solid var(--goud-licht); border-color: var(--goud-licht); }
.contact-form #submitButton { margin-top: 1.2rem; cursor: pointer; border: none; }
.form-note { font-size: .84rem; color: var(--soft); margin-top: .9rem; }
.form-thanks { background: var(--cream); border: 1px solid var(--goud-licht);
  border-radius: 10px; padding: 1.2rem; }
.form-thanks h2 { font-family: var(--display); font-size: 1.2rem; margin-bottom: .4rem; }

/* ── footer ── */
.site-footer { background: var(--inkt); color: #c3c6cf; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem;
  max-width: 66rem; margin: 0 auto; padding: 2.6rem clamp(1rem, 4vw, 2.6rem) 1.6rem; }
.footer-col h3 { color: var(--paper); font-size: .85rem; text-transform: uppercase;
  letter-spacing: .12em; margin-bottom: .7rem; }
.footer-col a { display: block; color: #c3c6cf; text-decoration: none; margin-bottom: .4rem; }
.footer-col a:hover { color: var(--goud-licht); }
.footer-col p { font-size: .92rem; margin-bottom: .6rem; }
.footer-brand p { font-size: .85rem; margin-top: .8rem; max-width: 26rem; }
.footer-stak { color: #9a9eab; }
.footer-stak a { color: #c3c6cf; }
.footer-stak a:hover { color: var(--goud-licht); }
.footer-legal { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  max-width: 66rem; margin: 0 auto; padding: 1rem clamp(1rem, 4vw, 2.6rem) 1.6rem;
  border-top: 1px solid #2b2e39; font-size: .85rem; }
.footer-legal a { color: #c3c6cf; }
@media (max-width: 800px) { .footer-inner { grid-template-columns: 1fr; } }