/* =========================================================
   BelgischeBacklinks.be — Hoofdstijlblad
   ========================================================= */

/* --- CSS Custom Properties -------------------------------- */
:root {
  --clr-primary:    #1A56A0;
  --clr-primary-dk: #14428A;
  --clr-cta:        #1A7A4A;
  --clr-cta-dk:     #145E39;
  --clr-bg:         #F0F4FA;
  --clr-white:      #FFFFFF;
  --clr-text:       #2C2C2C;
  --clr-muted:      #5A6577;
  --clr-border:     #D0DAE8;
  --clr-popular-bg: #EBF3FF;
  --clr-popular-bd: #1A56A0;
  --radius:         6px;
  --shadow:         0 2px 12px rgba(26,86,160,.10);
  --shadow-lg:      0 6px 28px rgba(26,86,160,.15);
  --font:           'Inter', system-ui, sans-serif;
  --max-w:          1140px;
  --nav-h:          64px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

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

a { color: var(--clr-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

ul { list-style: none; }

/* --- Typography ------------------------------------------- */
h1, h2, h3, h4 {
  line-height: 1.25;
  font-weight: 700;
  color: var(--clr-text);
}
h1 { font-size: clamp(1.8rem, 5vw, 2.8rem); }
h2 { font-size: clamp(1.4rem, 3.5vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.35rem); }
h4 { font-size: 1.05rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* --- Layout Helpers --------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section { padding-block: 4rem; }
.section--alt { background: var(--clr-white); }

.text-center { text-align: center; }
.text-muted   { color: var(--clr-muted); }

.section-label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: .5rem;
}

.section-title {
  margin-bottom: .75rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--clr-muted);
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: 2.5rem;
}

/* --- Buttons ---------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .75rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background .2s, color .2s, border-color .2s, transform .1s;
  text-decoration: none;
  line-height: 1.2;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--clr-cta);
  color: var(--clr-white);
  border-color: var(--clr-cta);
}
.btn-primary:hover {
  background: var(--clr-cta-dk);
  border-color: var(--clr-cta-dk);
  color: var(--clr-white);
}

.btn-secondary {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}
.btn-secondary:hover {
  background: var(--clr-primary-dk);
  border-color: var(--clr-primary-dk);
  color: var(--clr-white);
}

.btn-outline {
  background: transparent;
  color: var(--clr-primary);
  border-color: var(--clr-primary);
}
.btn-outline:hover {
  background: var(--clr-primary);
  color: var(--clr-white);
}

.btn-lg { padding: .9rem 2rem; font-size: 1.05rem; }
.btn-sm { padding: .5rem 1rem; font-size: .875rem; }

/* --- Navbar ----------------------------------------------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 999;
  background: var(--clr-white);
  border-bottom: 1px solid var(--clr-border);
  box-shadow: 0 1px 6px rgba(0,0,0,.06);
  height: var(--nav-h);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--clr-primary);
  letter-spacing: -.02em;
  text-decoration: none;
}
.nav-brand span { color: var(--clr-cta); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--clr-text);
  transition: color .15s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--clr-primary); text-decoration: none; }

.nav-links a.active {
  font-weight: 700;
  border-bottom: 2px solid var(--clr-primary);
  padding-bottom: 2px;
}

.nav-cta { margin-left: 1rem; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--clr-white);
  border-bottom: 1px solid var(--clr-border);
  padding: 1rem 1.25rem 1.5rem;
  gap: 1rem;
  position: absolute;
  top: var(--nav-h);
  left: 0;
  right: 0;
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--clr-text);
  padding: .35rem 0;
  border-bottom: 1px solid var(--clr-border);
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a.active { color: var(--clr-primary); font-weight: 700; }

/* --- Hero ------------------------------------------------- */
.hero {
  background: linear-gradient(135deg, #1A56A0 0%, #0D3872 60%, #0A2B58 100%);
  color: var(--clr-white);
  padding-block: 5rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='20'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 720px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 100px;
  padding: .3rem .9rem;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: rgba(255,255,255,.9);
}

.hero h1 { color: var(--clr-white); margin-bottom: 1.1rem; }

.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,.85);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3.5rem;
  flex-wrap: wrap;
}
.hero-stat { text-align: left; }
.hero-stat strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--clr-white);
}
.hero-stat span { font-size: .85rem; color: rgba(255,255,255,.7); }

/* --- Voordelen Grid --------------------------------------- */
.voordelen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.voordeel-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: 10px;
  padding: 1.75rem 1.5rem;
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
  box-shadow: var(--shadow);
  transition: box-shadow .2s, transform .2s;
}
.voordeel-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.voordeel-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--clr-bg);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.voordeel-icon svg { width: 24px; height: 24px; }

.voordeel-text h3 { font-size: 1rem; margin-bottom: .3rem; }
.voordeel-text p  { font-size: .9rem; color: var(--clr-muted); margin: 0; }

/* --- Pakketkaarten --------------------------------------- */
.pakketten-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.75rem;
  margin-top: 2.5rem;
}

.pakket-card {
  background: var(--clr-white);
  border: 2px solid var(--clr-border);
  border-radius: 12px;
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  transition: box-shadow .2s, transform .2s;
  position: relative;
}
.pakket-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }

.pakket-card.popular {
  border-color: var(--clr-popular-bd);
  background: var(--clr-popular-bg);
  box-shadow: 0 8px 32px rgba(26,86,160,.18);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--clr-primary);
  color: var(--clr-white);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .3rem .9rem;
  border-radius: 100px;
  white-space: nowrap;
}

.pakket-naam {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--clr-primary);
  margin-bottom: .5rem;
}

.pakket-prijs {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--clr-text);
  line-height: 1;
  margin-bottom: .25rem;
}
.pakket-prijs span { font-size: 1rem; font-weight: 500; color: var(--clr-muted); }

.pakket-desc { font-size: .9rem; color: var(--clr-muted); margin-bottom: 1.25rem; }

.pakket-features {
  list-style: none;
  margin-bottom: 1.75rem;
  flex: 1;
}
.pakket-features li {
  display: flex;
  align-items: flex-start;
  gap: .55rem;
  font-size: .9rem;
  padding: .35rem 0;
  border-bottom: 1px solid var(--clr-border);
}
.pakket-features li:last-child { border-bottom: none; }
.pakket-features li::before {
  content: '';
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 1px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%231A7A4A'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E") center/contain no-repeat;
}

.pakket-card .btn { width: 100%; justify-content: center; }

/* --- Stappen --------------------------------------------- */
.stappen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
  position: relative;
}

.stap-card {
  text-align: center;
  padding: 2rem 1.25rem;
  background: var(--clr-white);
  border-radius: 10px;
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow);
}

.stap-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--clr-primary);
  color: var(--clr-white);
  font-size: 1.1rem;
  font-weight: 800;
  border-radius: 50%;
  margin: 0 auto 1rem;
}

.stap-card h3 { font-size: 1rem; margin-bottom: .5rem; }
.stap-card p  { font-size: .875rem; color: var(--clr-muted); margin: 0; }

/* --- Trust blok ------------------------------------------ */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1.1rem 1.25rem;
  background: var(--clr-white);
  border-radius: 8px;
  border: 1px solid var(--clr-border);
  font-size: .9rem;
  font-weight: 500;
}
.trust-item svg { flex-shrink: 0; width: 22px; height: 22px; color: var(--clr-cta); }

/* --- CTA-sectie ------------------------------------------ */
.cta-section {
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-dk) 100%);
  color: var(--clr-white);
  padding-block: 4.5rem;
  text-align: center;
}
.cta-section h2 { color: var(--clr-white); margin-bottom: .75rem; }
.cta-section p  { color: rgba(255,255,255,.8); margin-bottom: 2rem; font-size: 1.05rem; }
.cta-section .btn-primary { font-size: 1.05rem; padding: .9rem 2.2rem; }

/* --- Formulieren ----------------------------------------- */
.form-wrap {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: 10px;
  padding: 2rem;
  margin-top: 1.5rem;
}

.form-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--clr-primary);
}

.form-group {
  margin-bottom: 1.1rem;
}
.form-group label {
  display: block;
  font-size: .875rem;
  font-weight: 600;
  margin-bottom: .35rem;
  color: var(--clr-text);
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: .65rem .9rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: .9rem;
  color: var(--clr-text);
  background: var(--clr-white);
  transition: border-color .2s;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--clr-primary); }
.form-group textarea { min-height: 100px; resize: vertical; }

.form-group .field-error {
  display: none;
  font-size: .8rem;
  color: #c0392b;
  margin-top: .3rem;
}
.form-group.has-error input,
.form-group.has-error textarea { border-color: #c0392b; }
.form-group.has-error .field-error { display: block; }

.form-note {
  font-size: .8rem;
  color: var(--clr-muted);
  margin-top: .75rem;
}

/* --- FAQ Accordion --------------------------------------- */
.faq-list { margin-top: 2rem; }

.faq-item {
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  margin-bottom: .75rem;
  overflow: hidden;
  background: var(--clr-white);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.25rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: .95rem;
  font-weight: 600;
  color: var(--clr-text);
  text-align: left;
  gap: 1rem;
}
.faq-question:hover { color: var(--clr-primary); }

.faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--clr-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .25s, background .2s;
}
.faq-icon svg { width: 14px; height: 14px; }
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--clr-primary); }
.faq-item.open .faq-icon svg { stroke: white; }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s;
}
.faq-item.open .faq-answer {
  max-height: 800px;
}
.faq-answer-inner {
  padding: 0 1.25rem 1.25rem;
  font-size: .925rem;
  color: var(--clr-muted);
  line-height: 1.75;
}

/* --- Blog grid ------------------------------------------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.blog-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow .2s, transform .2s;
  display: flex;
  flex-direction: column;
}
.blog-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.blog-thumb {
  width: 100%;
  aspect-ratio: 16/8;
  background: linear-gradient(135deg, #1A56A0 0%, #0D3872 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.blog-thumb svg { width: 48px; height: 48px; opacity: .35; }

.soon-badge {
  position: absolute;
  top: .75rem;
  left: .75rem;
  background: var(--clr-cta);
  color: var(--clr-white);
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .2rem .65rem;
  border-radius: 100px;
}

.blog-body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column; }
.blog-cat {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--clr-primary);
  margin-bottom: .4rem;
}
.blog-body h3 { font-size: 1rem; margin-bottom: .5rem; line-height: 1.35; }
.blog-body p  { font-size: .875rem; color: var(--clr-muted); flex: 1; }
.blog-body .btn-sm { margin-top: 1rem; align-self: flex-start; }

/* --- Breadcrumb ------------------------------------------ */
.breadcrumb {
  padding: .75rem 0;
  font-size: .8rem;
  color: var(--clr-muted);
  display: flex;
  align-items: center;
  gap: .4rem;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--clr-primary); }
.breadcrumb span { opacity: .5; }

/* --- Wettelijke ------------------------------------------ */
.legal-section h2 { font-size: 1.25rem; margin-top: 2rem; margin-bottom: .5rem; color: var(--clr-primary); }
.legal-section h3 { font-size: 1.05rem; margin-top: 1.5rem; margin-bottom: .4rem; }
.legal-section ul { list-style: disc; padding-left: 1.5rem; margin-bottom: 1rem; }
.legal-section ul li { margin-bottom: .35rem; font-size: .925rem; }
.todo { background: #fff3cd; border-left: 4px solid #f0ad4e; padding: .4rem .75rem; border-radius: var(--radius); font-size: .85rem; margin: .5rem 0; }

/* --- Intro blok ------------------------------------------ */
.intro-blok {
  background: var(--clr-white);
  border-radius: 12px;
  padding: 2.5rem;
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow);
  margin-bottom: 3rem;
}
.intro-blok p { font-size: 1rem; line-height: 1.8; }

/* --- Steps detail ---------------------------------------- */
.steps-detail { margin-top: 2.5rem; }
.step-detail {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 3rem;
  align-items: flex-start;
}
.step-detail-num {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: var(--clr-primary);
  color: var(--clr-white);
  font-size: 1.3rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(26,86,160,.25);
}
.step-detail-body h3 { font-size: 1.2rem; margin-bottom: .6rem; }
.step-detail-body p  { font-size: .95rem; color: var(--clr-muted); }

/* --- Footer ---------------------------------------------- */
.footer {
  background: #0D2240;
  color: rgba(255,255,255,.75);
  padding-block: 3rem 2rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
}

.footer-brand { color: var(--clr-white); font-size: 1.1rem; font-weight: 800; margin-bottom: .5rem; }
.footer-brand span { color: var(--clr-cta); }
.footer-tagline { font-size: .875rem; opacity: .7; margin-bottom: 1rem; }

.footer-heading {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: rgba(255,255,255,.5);
  margin-bottom: .85rem;
}

.footer ul li { margin-bottom: .5rem; }
.footer ul a {
  font-size: .875rem;
  color: rgba(255,255,255,.65);
  transition: color .15s;
}
.footer ul a:hover { color: var(--clr-white); text-decoration: none; }

.footer-contact a {
  color: rgba(255,255,255,.7);
  font-size: .875rem;
}
.footer-contact a:hover { color: var(--clr-white); }

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .75rem;
  font-size: .8rem;
  opacity: .55;
}

/* --- Responsive ------------------------------------------ */
@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }

  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-inner > :first-child { grid-column: 1 / -1; }

  .hero { padding-block: 3.5rem 2.5rem; }
  .hero-stats { gap: 1.5rem; }

  .stappen-grid { grid-template-columns: 1fr; }

  .step-detail { flex-direction: column; }

  .section { padding-block: 3rem; }

  .intro-blok { padding: 1.5rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.6rem; }
  .hero-sub { font-size: 1rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  .pakketten-grid { grid-template-columns: 1fr; }
  .voordelen-grid  { grid-template-columns: 1fr; }
  .trust-grid      { grid-template-columns: 1fr; }
  .blog-grid       { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .form-wrap { padding: 1.25rem; }

  h2 { font-size: 1.35rem; }
}