/* ============================================================
   functiewoorden.nl – Global Stylesheet
   Palette:
     --ink:       #1b3a4b  (deep teal-blue, replaced near-black)
     --ink-dark:  #122530  (darker shade for footer)
     --paper:     #f7f4ef  (warm off-white)
     --vmbo:      #e8773a  (warm amber-orange)
     --havo:      #3a7de8  (clear blue)
     --vwo:       #2db57a  (rich green)
     --accent:    #f0c040  (golden yellow – signature)
     --muted:     #5a7a87
     --border:    #ddd8cc
   Type:
     Display: Fraunces (serif, optical)
     Body:    Inter (clean, screen-optimised)
   ============================================================ */

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

:root {
  --ink:      #1b3a4b;
  --ink-dark: #122530;
  --paper:    #f7f4ef;
  --vmbo:     #e8773a;
  --havo:     #3a7de8;
  --vwo:      #2db57a;
  --accent:   #f0c040;
  --muted:    #5a7a87;
  --border:   #ddd8cc;
  --radius:   10px;
  --shadow:   0 2px 16px rgba(27,58,75,.10);
  --transition: .2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  font-size: 1rem;
}

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: 'Fraunces', Georgia, serif;
  line-height: 1.2;
  font-weight: 700;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); margin-bottom: .5rem; }
h3 { font-size: 1.2rem; margin-bottom: .4rem; }
p  { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }
a  { color: inherit; }

em { font-style: italic; }
strong { font-weight: 600; }

/* ── Layout ── */
.container {
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ── Header ── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: linear-gradient(135deg, var(--ink) 0%, #1e4d62 100%);
  color: #fff;
  padding: .9rem 0;
  box-shadow: 0 2px 16px rgba(27,58,75,.25);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.logo {
  font-family: 'Fraunces', serif;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  color: #fff;
  letter-spacing: -.02em;
}
.logo span { color: var(--accent); }

.main-nav { display: flex; gap: 1.8rem; }
.main-nav a {
  text-decoration: none;
  font-size: .9rem;
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: rgba(255,255,255,.75);
  transition: color var(--transition);
}
.main-nav a:hover { color: var(--accent); }

.nav-toggle {
  display: none;
  background: none; border: none;
  color: #fff; font-size: 1.4rem;
  cursor: pointer;
}

/* ── Hero ── */
.hero {
  background: linear-gradient(145deg, var(--ink) 0%, #1e4d62 50%, #16394d 100%);
  color: #fff;
  padding: 5rem 0 4rem;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .75rem;
}
.hero h1 { color: #fff; margin-bottom: 1rem; }
.hero h1 em { color: var(--accent); font-style: italic; }
.lead {
  font-size: 1.1rem;
  color: rgba(255,255,255,.8);
  margin-bottom: 2rem;
  max-width: 42ch;
}
.hero-cta { display: flex; gap: .75rem; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-block;
  padding: .65rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .9rem;
  letter-spacing: .03em;
  text-decoration: none;
  transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,.18); }

.btn-vmbo { background: var(--vmbo); color: #fff; }
.btn-havo { background: var(--havo); color: #fff; }
.btn-vwo  { background: var(--vwo);  color: #fff; }
.btn-back {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .9rem; font-weight: 500; color: var(--muted);
  text-decoration: none; margin-bottom: 1.5rem;
  transition: color var(--transition);
}
.btn-back:hover { color: var(--ink); }

/* Word cloud */
.word-cloud {
  position: relative;
  height: 280px;
  user-select: none;
}
.wc {
  position: absolute;
  font-family: 'Fraunces', serif;
  font-weight: 700;
  color: rgba(255,255,255,.12);
  transition: color .3s;
}
.wc:hover { color: var(--accent); }
.wc-1  { font-size:2.4rem; top:5%;  left:10%; }
.wc-2  { font-size:3rem;   top:10%; left:50%; }
.wc-3  { font-size:1.6rem; top:35%; left:5%;  color:rgba(255,255,255,.22); }
.wc-4  { font-size:2rem;   top:55%; left:25%; }
.wc-5  { font-size:3.5rem; top:40%; left:52%; color:rgba(240,192,64,.35); }
.wc-6  { font-size:1.3rem; top:70%; left:10%; }
.wc-7  { font-size:1.8rem; top:20%; left:28%; color:rgba(255,255,255,.18); }
.wc-8  { font-size:2.8rem; top:65%; left:58%; }
.wc-9  { font-size:1.5rem; top:78%; left:38%; color:rgba(255,255,255,.2); }
.wc-10 { font-size:1.2rem; top:0%;  left:70%; }
.wc-11 { font-size:2rem;   top:48%; left:78%; color:rgba(255,255,255,.25); }
.wc-12 { font-size:1.4rem; top:82%; left:70%; }

/* ── Level cards ── */
.levels-section { padding: 4.5rem 0; }
.section-title {
  text-align: center;
  margin-bottom: 2.5rem;
}
.level-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.level-card {
  display: block;
  padding: 2rem;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink);
  background: #fff;
  border: 2px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.level-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.card-label {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: .25rem .7rem;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: .9rem;
  color: #fff;
}
.card-vmbo .card-label { background: var(--vmbo); }
.card-havo .card-label { background: var(--havo); }
.card-vwo  .card-label { background: var(--vwo); }

.level-card p { color: var(--muted); font-size: .95rem; }
.card-arrow {
  position: absolute; bottom: 1.5rem; right: 1.75rem;
  font-size: 1.4rem;
  color: var(--border);
  transition: color var(--transition), right var(--transition);
}
.card-vmbo:hover .card-arrow { color: var(--vmbo); right: 1.4rem; }
.card-havo:hover .card-arrow { color: var(--havo); right: 1.4rem; }
.card-vwo:hover  .card-arrow { color: var(--vwo);  right: 1.4rem; }

/* ── Explainer ── */
.explainer-section {
  background: #fff;
  padding: 4rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.explainer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: start;
}
.tip-box {
  background: linear-gradient(135deg, var(--ink) 0%, #1e4d62 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 1.5rem;
}
.tip-label {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .75rem;
}
.tip-box p { color: rgba(255,255,255,.85); font-size: .95rem; }
.tip-box strong { color: var(--accent); }

/* ── FAQ ── */
.faq-section { padding: 4.5rem 0; }
.faq-list { max-width: 760px; margin-inline: auto; }
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: .25rem 0;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.1rem .25rem;
  font-weight: 600;
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  user-select: none;
  transition: color var(--transition);
}
.faq-item summary:hover { color: var(--havo); }
.faq-item summary::after { content: '+'; font-size: 1.4rem; font-weight: 300; flex-shrink: 0; }
.faq-item[open] summary::after { content: '−'; }
.faq-item summary::-webkit-details-marker { display:none; }
.faq-body { padding: 0 .25rem 1.25rem; color: var(--muted); line-height: 1.7; }
.faq-body p { margin-bottom: .75rem; }
.faq-body strong { color: var(--ink); }
.faq-body em { font-style: italic; }

/* ── Level pages ── */
.page-hero {
  padding: 3.5rem 0 2.5rem;
  color: #fff;
}
.page-hero.vmbo-hero { background: var(--vmbo); }
.page-hero.havo-hero { background: var(--havo); }
.page-hero.vwo-hero  { background: var(--vwo); }

.page-hero h1 { color: #fff; font-size: clamp(2rem, 4vw, 3rem); }
.page-hero p  { color: rgba(255,255,255,.88); font-size: 1.1rem; max-width: 60ch; }
.hero-meta {
  display: flex; gap: 1.5rem; flex-wrap: wrap;
  margin-top: 1.25rem;
}
.meta-badge {
  font-size: .78rem; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase;
  background: rgba(255,255,255,.18);
  border-radius: 4px;
  padding: .3rem .8rem;
  color: #fff;
}

/* Theory sections */
.theory-section { padding: 3.5rem 0; }
.theory-section h2 { margin-bottom: 1rem; }

.fw-table-wrap { overflow-x: auto; margin: 1.5rem 0; }
.fw-table {
  width: 100%; border-collapse: collapse;
  font-size: .95rem;
}
.fw-table th {
  background: linear-gradient(90deg, var(--ink) 0%, #1e4d62 100%);
  color: #fff;
  padding: .7rem 1rem;
  text-align: left;
  font-weight: 600;
}
.fw-table td { padding: .65rem 1rem; border-bottom: 1px solid var(--border); }
.fw-table tr:nth-child(even) td { background: rgba(0,0,0,.025); }
.fw-table tr:hover td { background: rgba(0,0,0,.045); }

.cat-badge {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  border-radius: 4px;
  padding: .2rem .6rem;
  color: #fff;
}
.cat-tegen    { background: #e8773a; }
.cat-oorzaak  { background: #c04070; }
.cat-toevoeging { background: #3a7de8; }
.cat-conclusie{ background: #2db57a; }
.cat-vb       { background: #7a50c8; }
.cat-tijd     { background: #b07830; }
.cat-conditie { background: #407890; }
.cat-nuance   { background: #808090; }
.cat-opsomming{ background: #607850; }

/* Exercises */
.exercises-section {
  padding: 3.5rem 0 5rem;
  background: #fff;
  border-top: 1px solid var(--border);
}
.exercises-section h2 { margin-bottom: .5rem; }
.exercises-section > .container > p { color: var(--muted); margin-bottom: 2rem; }

.exercise-card {
  background: var(--paper);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-bottom: 1.25rem;
}
.exercise-card.correct { border-color: var(--vwo); background: #edfaf3; }
.exercise-card.incorrect { border-color: #e04040; background: #fdf0f0; }

.ex-header {
  display: flex; gap: .75rem; align-items: center;
  margin-bottom: 1rem;
}
.ex-num {
  font-family: 'Fraunces', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--border);
  line-height: 1;
  flex-shrink: 0;
  width: 2.2rem;
}
.exercise-card.correct  .ex-num { color: var(--vwo); }
.exercise-card.incorrect .ex-num { color: #e04040; }

.ex-question { font-weight: 600; font-size: 1rem; }
.ex-passage {
  background: #fff;
  border-left: 3px solid var(--border);
  padding: .75rem 1rem;
  margin: .75rem 0;
  font-style: italic;
  color: var(--muted);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: .97rem;
}
.ex-passage .blank {
  display: inline-block;
  min-width: 90px;
  border-bottom: 2px solid var(--ink);
  margin-inline: .25rem;
  vertical-align: bottom;
}

.options { display: flex; flex-direction: column; gap: .5rem; margin-top: .75rem; }
.option {
  display: flex; align-items: center; gap: .75rem;
  cursor: pointer;
  padding: .65rem .9rem;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: #fff;
  font-size: .95rem;
  transition: border-color .15s, background .15s;
}
.option:hover { border-color: var(--havo); background: #f0f6ff; }
.option input { accent-color: var(--havo); flex-shrink: 0; }
.option.selected { border-color: var(--havo); background: #eaf2ff; }
.option.correct-opt { border-color: var(--vwo); background: #edfaf3; }
.option.wrong-opt   { border-color: #e04040; background: #fdf0f0; }

.ex-feedback {
  display: none;
  margin-top: .75rem;
  padding: .75rem 1rem;
  border-radius: 6px;
  font-size: .95rem;
  line-height: 1.55;
}
.ex-feedback.correct-fb  { display: block; background: #d4f4e4; color: #1a5c38; }
.ex-feedback.incorrect-fb { display: block; background: #fde0e0; color: #7a1212; }

.check-btn {
  margin-top: 1rem;
  padding: .55rem 1.4rem;
  background: var(--ink);
  color: #fff;
  border: none; border-radius: 6px;
  font-size: .9rem; font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.check-btn:hover { background: #1e4d62; }
.check-btn:disabled { opacity: .45; cursor: default; }

.score-banner {
  margin-top: 2.5rem;
  padding: 1.5rem 2rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--ink) 0%, #1e4d62 100%);
  color: #fff;
  text-align: center;
  display: none;
}
.score-banner h3 { color: var(--accent); font-size: 1.6rem; margin-bottom: .4rem; }
.score-banner p  { color: rgba(255,255,255,.8); }

/* ── Links page ── */
.links-section { padding: 4rem 0 6rem; }
.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}
.link-card {
  display: block;
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius);
  background: #fff;
  border: 1.5px solid var(--border);
  text-decoration: none;
  color: var(--ink);
  transition: transform var(--transition), box-shadow var(--transition);
}
.link-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.link-card-tag {
  font-size: .72rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: .5rem;
}
.link-card h3 { font-size: 1rem; margin-bottom: .35rem; }
.link-card p  { font-size: .9rem; color: var(--muted); }
.link-url { font-size: .8rem; color: var(--havo); margin-top: .5rem; word-break: break-all; }

/* ── Footer ── */
.site-footer {
  background: linear-gradient(160deg, var(--ink-dark) 0%, var(--ink) 100%);
  color: rgba(255,255,255,.7);
  padding-top: 3rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
}
.footer-logo {
  font-family: 'Fraunces', serif;
  font-size: 1.1rem;
  color: #fff;
  display: block;
  margin-bottom: .5rem;
}
.footer-col strong { display: block; color: #fff; margin-bottom: .6rem; font-size: .9rem; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: .35rem; }
.footer-col a { color: rgba(255,255,255,.65); text-decoration: none; transition: color var(--transition); font-size: .9rem; }
.footer-col a:hover { color: var(--accent); }
.footer-col p { font-size: .9rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 1rem 0;
  font-size: .8rem;
  color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.55); text-decoration: none; }
.footer-bottom a:hover { color: var(--accent); }

/* ── Utilities ── */
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.text-muted { color: var(--muted); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero-inner     { grid-template-columns: 1fr; }
  .hero-visual    { display: none; }
  .level-cards    { grid-template-columns: 1fr; }
  .explainer-grid { grid-template-columns: 1fr; }
  .footer-inner   { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .main-nav { display: none; }
  .main-nav.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--ink);
    padding: 1rem 1.5rem 1.5rem;
    gap: 1rem;
  }
  .nav-toggle { display: block; }
  .header-inner { position: relative; }
  .footer-inner { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ── Glossary page ─────────────────────────────────────────── */
.glossary-hero {
  background: linear-gradient(135deg, var(--ink) 0%, #1e5a72 60%, #1b7a90 100%);
  padding: 3.5rem 0 2.5rem;
}
.glossary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.glossary-card {
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.glossary-term {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 1rem;
  min-width: 130px;
  color: var(--ink);
  flex-shrink: 0;
}
.glossary-def {
  font-size: .92rem;
  color: var(--muted);
  line-height: 1.55;
}
.glossary-filter {
  display: flex; flex-wrap: wrap; gap: .5rem;
  margin-bottom: 1.5rem;
}
.filter-btn {
  padding: .4rem 1rem;
  border-radius: 20px;
  border: 1.5px solid var(--border);
  background: #fff;
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  color: var(--ink);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.glossary-cat-label {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #fff;
  border-radius: 3px;
  padding: .15rem .5rem;
  margin-bottom: .35rem;
  display: inline-block;
}

/* ── Exam question showcase (level pages) ─────────────────── */
.examplebox {
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  margin: 1.5rem 0;
  overflow: hidden;
}
.examplebox-header {
  padding: .75rem 1.25rem;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: #fff;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.examplebox-body { padding: 1.25rem 1.5rem; }
.examplebox-body p { font-size: .97rem; }
.examplebox-passage {
  background: var(--paper);
  border-left: 3px solid var(--border);
  padding: .85rem 1.1rem;
  margin: .75rem 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: .95rem;
}
.examplebox-passage strong { color: var(--ink); }
.examplebox-answer {
  margin-top: .75rem;
  padding: .75rem 1rem;
  border-radius: 6px;
  background: #edfaf3;
  border: 1.5px solid #b2e8ce;
  font-size: .93rem;
  color: #1a5c38;
}
.examplebox-answer strong { color: #1a5c38; }

.vmbo-header  { background: var(--vmbo); }
.havo-header  { background: var(--havo); }
.vwo-header   { background: var(--vwo); }
.ink-header   { background: var(--ink); }

/* Vraagvormen list */
.vraagvormen {
  list-style: none;
  counter-reset: vv;
  margin: 1rem 0 1.5rem;
}
.vraagvormen li {
  counter-increment: vv;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: .9rem 0;
  border-bottom: 1px solid var(--border);
}
.vraagvormen li::before {
  content: counter(vv);
  font-family: 'Fraunces', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--border);
  min-width: 1.8rem;
  line-height: 1;
  margin-top: .1rem;
  flex-shrink: 0;
}
.vraagvormen li strong { display: block; margin-bottom: .2rem; }
.vraagvormen li p { margin: 0; font-size: .95rem; color: var(--muted); }

/* Options styled like exam */
.exam-options {
  list-style: none;
  margin: .75rem 0;
}
.exam-options li {
  display: flex;
  gap: .75rem;
  padding: .5rem .75rem;
  border-radius: 5px;
  font-size: .95rem;
  margin-bottom: .3rem;
  background: var(--paper);
}
.exam-options li.right { background: #edfaf3; color: #1a5c38; font-weight: 600; }
.exam-opt-letter {
  font-weight: 700;
  min-width: 1.2rem;
  color: var(--muted);
}
.exam-options li.right .exam-opt-letter { color: #2db57a; }

/* Section anchors */
.section-anchor { scroll-margin-top: 4.5rem; }

/* Nav sub-links on level pages */
.page-subnav {
  background: rgba(255,255,255,.12);
  padding: .75rem 0;
  border-bottom: 1px solid rgba(255,255,255,.15);
}
.page-subnav-inner {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.page-subnav a {
  font-size: .85rem;
  font-weight: 600;
  color: rgba(255,255,255,.8);
  text-decoration: none;
  transition: color var(--transition);
}
.page-subnav a:hover { color: #fff; }

@media (max-width: 640px) {
  .glossary-grid { grid-template-columns: 1fr; }
  .vraagvormen li { flex-direction: column; gap: .3rem; }
}