/* Student Clean – B2B landingspagina. Kleuren/maten aanpassen via de variabelen hieronder. */
:root {
  --c-brand: #2c6aa0;
  --c-brand-dark: #173f63;
  --c-ink: #152433;
  --c-muted: #5a6b7b;
  --c-line: #dfe6ed;
  --c-bg: #ffffff;
  --c-bg-alt: #f3f6f9;
  --c-ok: #1f8a5b;
  --c-err: #b42318;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(21, 36, 51, .08);
  --wrap: 1120px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; font-family: var(--font); color: var(--c-ink); background: var(--c-bg); line-height: 1.55; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-brand); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(1.9rem, 4.2vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.1rem; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
.wrap--narrow { max-width: 760px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 100; background: #fff; padding: 8px 12px; }

/* knoppen */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .4em; min-height: 48px; padding: 0 22px; border-radius: 999px; font: 600 1rem/1 var(--font); text-decoration: none; border: 2px solid transparent; cursor: pointer; transition: background .15s, color .15s, border-color .15s; }
.btn--primary { background: var(--c-brand); color: #fff; }
.btn--primary:hover { background: var(--c-brand-dark); }
.btn--ghost { background: transparent; color: var(--c-brand-dark); border-color: var(--c-brand); }
.btn--ghost:hover { background: var(--c-bg-alt); }
.btn--sm { min-height: 40px; padding: 0 16px; font-size: .92rem; }
.btn--block { width: 100%; }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 3px solid #f2b705; outline-offset: 2px; }

/* header */
.topbar { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: blur(6px); border-bottom: 1px solid var(--c-line); }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--c-ink); font-weight: 700; }
.brand img { width: 44px; height: auto; }
.brand small { display: block; font-weight: 500; color: var(--c-muted); font-size: .78rem; }
.topbar__actions { display: flex; align-items: center; gap: 16px; }
.link-phone { font-weight: 600; text-decoration: none; white-space: nowrap; }

/* hero */
.hero { padding: 48px 0 32px; background: linear-gradient(180deg, var(--c-bg-alt), #fff); }
.hero__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.eyebrow { color: var(--c-brand-dark); font-weight: 600; font-size: .92rem; margin: 0 0 12px; }
.lead { font-size: 1.15rem; color: var(--c-muted); max-width: 36em; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0; }
.hero__img img { border-radius: var(--radius); box-shadow: var(--shadow); aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.checks li { padding-left: 28px; position: relative; }
.checks li::before { content: ""; position: absolute; left: 0; top: .35em; width: 18px; height: 18px; border-radius: 50%; background: var(--c-ok) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='none' stroke='%23fff' stroke-width='3' d='M5 10.5l3.2 3L15 6.5'/%3E%3C/svg%3E") center/12px no-repeat; }
.refs { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; color: var(--c-muted); font-size: .92rem; }
.refs ul { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; }
.refs li { background: #fff; border: 1px solid var(--c-line); border-radius: 999px; padding: 4px 12px; color: var(--c-ink); font-weight: 600; }

.refs__score { font-weight: 700; color: var(--c-ink); text-decoration: none; white-space: nowrap; }
.refs__score::first-letter { color: #e6a700; }

/* secties */
.section { padding: 64px 0; }
.section--alt { background: var(--c-bg-alt); }
.section__intro { color: var(--c-muted); max-width: 46em; margin-bottom: 28px; }
.note { color: var(--c-muted); font-size: .92rem; margin-top: 20px; }
.tiles { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.tiles li { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 16px 18px; display: grid; gap: 2px; }
.tiles span { color: var(--c-muted); font-size: .92rem; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: #fff; border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.card p { margin: 0; color: var(--c-muted); }
.usps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 32px; }
.usps li { display: grid; gap: 4px; padding-left: 16px; border-left: 3px solid var(--c-brand); }
.usps span { color: var(--c-muted); }
.steps { list-style: none; counter-reset: s; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.steps li { counter-increment: s; background: #fff; border-radius: var(--radius); padding: 22px; display: grid; gap: 6px; align-content: start; }
.steps li::before { content: counter(s); width: 36px; height: 36px; border-radius: 50%; background: var(--c-brand); color: #fff; display: grid; place-items: center; font-weight: 700; }
.steps span { color: var(--c-muted); font-size: .95rem; }
.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 28px; }
.plan { border: 1px solid var(--c-line); border-radius: var(--radius); padding: 22px; }
.plan p { margin: 0; color: var(--c-muted); }
.plan--featured { border-color: var(--c-brand); box-shadow: var(--shadow); }
.gallery { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-bottom: 16px; }
.gallery figure { margin: 0; }
.gallery img { border-radius: var(--radius); aspect-ratio: 3/4; object-fit: cover; width: 100%; }
.gallery figcaption { font-size: .85rem; color: var(--c-muted); margin-top: 6px; }
.callout { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: baseline; background: #e8f0f8; border-left: 4px solid var(--c-brand); border-radius: 8px; padding: 14px 18px; }
.callout a { font-weight: 600; white-space: nowrap; }
.reviews { display: grid; grid-template-columns: 1fr 1fr .8fr; gap: 16px; }
.review { margin: 0; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 22px; display: grid; gap: 10px; align-content: start; }
.review p { margin: 0; font-size: 1.05rem; }
.review footer { color: var(--c-muted); font-size: .92rem; }
.review__stars { color: #e6a700; letter-spacing: 2px; }
.review--score { background: var(--c-brand-dark); color: #fff; align-content: center; text-align: center; border: 0; gap: 18px; }
.review--score a { color: #fff; text-decoration: none; display: grid; gap: 4px; }
.review--score a:hover span:last-child { text-decoration: underline; }
.review__big { font-size: 2.1rem; font-weight: 800; line-height: 1; }
details { border-bottom: 1px solid var(--c-line); padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; list-style: none; position: relative; padding-right: 28px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 4px; top: -2px; font-size: 1.4rem; color: var(--c-brand); }
details[open] summary::after { content: "–"; }
details p { color: var(--c-muted); margin: 10px 0 0; }

/* formulier */
.section--form { background: linear-gradient(180deg, #fff, var(--c-bg-alt)); }
.form-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
.lead-form { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; border: 1px solid var(--c-line); }
.segmented { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--c-line); border-radius: 999px; padding: 4px; margin: 0 0 18px; }
.segmented label { text-align: center; border-radius: 999px; padding: 10px; cursor: pointer; font-weight: 600; color: var(--c-muted); }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented label:has(input:checked) { background: var(--c-brand); color: #fff; }
.segmented label:has(input:focus-visible) { outline: 3px solid #f2b705; }
.step__label { font-size: .85rem; font-weight: 700; color: var(--c-brand-dark); text-transform: uppercase; letter-spacing: .04em; margin: 0 0 12px; }
.field { display: grid; gap: 6px; margin: 0 0 14px; border: 0; padding: 0; min-width: 0; }
.field label, .field legend { font-weight: 600; font-size: .95rem; padding: 0; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
input[type=text], input[type=email], input[type=tel], select, textarea { width: 100%; min-height: 48px; padding: 10px 12px; border: 1px solid #c5d0db; border-radius: 8px; font: 1rem var(--font); color: var(--c-ink); background: #fff; }
textarea { min-height: 90px; resize: vertical; }
[aria-invalid=true] { border-color: var(--c-err); background: #fff6f5; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips label { display: inline-flex; align-items: center; gap: 6px; border: 1px solid #c5d0db; border-radius: 999px; padding: 8px 12px; cursor: pointer; font-weight: 500; font-size: .92rem; }
.chips label:has(input:checked) { border-color: var(--c-brand); background: #e8f0f8; }
.hint { color: var(--c-muted); }
.hp { position: absolute; left: -9999px; }
.form-error { color: var(--c-err); font-weight: 600; }
.step__nav { display: flex; gap: 12px; justify-content: space-between; }
.step__nav .btn--primary { flex: 1; }
.privacy { font-size: .82rem; color: var(--c-muted); margin: 14px 0 0; }

/* contact & footer */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.contact__list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.contact__list li { display: grid; grid-template-columns: 110px 1fr; gap: 8px; }
.contact__list li > span:first-child { color: var(--c-muted); }
.footer { padding: 28px 0 96px; color: var(--c-muted); font-size: .9rem; border-top: 1px solid var(--c-line); }

/* mobiele actiebalk */
.mobilebar { display: none; }

/* cookiebanner */
.consent { position: fixed; z-index: 90; left: 16px; right: 16px; bottom: 16px; max-width: 520px; margin-left: auto; background: #fff; border: 1px solid var(--c-line); box-shadow: var(--shadow); border-radius: var(--radius); padding: 16px; font-size: .92rem; }
.consent p { margin: 0 0 12px; }
.consent div { display: flex; gap: 8px; justify-content: flex-end; }

@media (max-width: 960px) {
  .hero__grid, .form-grid, .contact { grid-template-columns: 1fr; }
  .hero__img img { aspect-ratio: 16/9; }
  .tiles, .cards { grid-template-columns: repeat(2, 1fr); }
  .reviews { grid-template-columns: 1fr; }
  .steps, .plans { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 600px) {
  .section { padding: 44px 0; }
  .hero { padding-top: 20px; }
  .topbar__actions .link-phone { display: none; }
  .brand small { display: none; }
  .tiles, .cards, .usps, .steps, .plans, .field-row { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .hero__ctas .btn { width: 100%; }
  .lead-form { padding: 18px; }
  .contact__list li { grid-template-columns: 90px 1fr; }
  .mobilebar { display: grid; grid-template-columns: 1fr 1.6fr; gap: 8px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: #fff; border-top: 1px solid var(--c-line); box-shadow: 0 -4px 16px rgba(0,0,0,.06); }
  .mobilebar a { min-height: 48px; display: grid; place-items: center; border-radius: 999px; font-weight: 700; text-decoration: none; }
  .mobilebar__call { border: 2px solid var(--c-brand); color: var(--c-brand-dark); }
  .mobilebar__quote { background: var(--c-brand); color: #fff; }
  .consent { bottom: 80px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }