/* ==========================================================================
   Boekhoudprogramma ZZP Gratis — stylesheet
   Handgeschreven CSS, geen frameworks. Mobile-first.
   ========================================================================== */

:root {
  --navy: #16324f;
  --navy-tint-1: #1e3f63;
  --navy-tint-2: #29527e;
  --bg: #eef2f6;
  --card: #ffffff;
  --gray: #6b7784;
  --border: #cdd6de;
  --radius: 4px;
  --max-width: 1080px;
  --font-heading: "Lexend", system-ui, Arial, sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: #1c2733;
  font-family: var(--font-body);
  line-height: 1.6;
  font-size: 17px;
}

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  color: var(--navy);
  line-height: 1.25;
  font-weight: 600;
  margin-top: 0;
}

h1 {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
}

h2 {
  font-size: clamp(1.3rem, 3vw, 1.6rem);
  margin-top: 2.2em;
  margin-bottom: 0.6em;
}

h3 {
  font-size: 1.1rem;
  margin-top: 1.6em;
  margin-bottom: 0.4em;
}

p {
  margin: 0 0 1em;
}

a {
  color: var(--navy-tint-2);
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--navy);
}

ul,
ol {
  padding-left: 1.3em;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy);
  color: #fff;
  padding: 10px 16px;
  z-index: 200;
  border-radius: 0 0 var(--radius) 0;
}

.skip-link:focus {
  left: 0;
}

/* ---------- Header ---------- */
.site-header {
  background: var(--navy);
  color: #fff;
  border-bottom: 1px solid var(--navy-tint-1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
  color: #fff;
}

.brand-name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.15rem;
  color: #fff;
  letter-spacing: 0.01em;
}

.brand-tagline {
  font-size: 0.72rem;
  color: #c3d0dd;
  display: none;
}

@media (min-width: 640px) {
  .brand-tagline {
    display: block;
  }
}

.nav-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--navy-tint-2);
  color: #fff;
  border-radius: var(--radius);
  padding: 8px 12px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
  stroke: #fff;
}

.main-nav {
  display: none;
  width: 100%;
}

.main-nav.is-open {
  display: block;
}

.main-nav ul {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  border-top: 1px solid var(--navy-tint-1);
}

.main-nav li {
  border-bottom: 1px solid var(--navy-tint-1);
}

.main-nav a {
  display: block;
  padding: 12px 4px;
  color: #e7edf3;
  text-decoration: none;
  font-size: 0.98rem;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: #fff;
  font-weight: 600;
}

@media (min-width: 800px) {
  .nav-toggle {
    display: none;
  }

  .main-nav {
    display: block;
    width: auto;
  }

  .main-nav ul {
    display: flex;
    gap: 24px;
    border-top: none;
    margin: 0;
  }

  .main-nav li {
    border-bottom: none;
  }

  .main-nav a {
    padding: 6px 2px;
    border-bottom: 2px solid transparent;
  }

  .main-nav a:hover,
  .main-nav a[aria-current="page"] {
    border-bottom-color: #fff;
  }
}

/* ---------- Hero ---------- */
.hero {
  background: var(--navy);
  color: #fff;
  padding: 44px 0 52px;
}

.hero h1 {
  color: #fff;
  max-width: 720px;
}

.hero p {
  color: #d7e0e9;
  max-width: 620px;
  font-size: 1.05rem;
}

.hero .btn {
  margin-top: 8px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: #fff;
  color: var(--navy);
  border: 1px solid #fff;
  border-radius: var(--radius);
  padding: 12px 20px;
  text-decoration: none;
  font-weight: 600;
  font-family: var(--font-heading);
  font-size: 0.98rem;
}

.btn:hover {
  background: #e7edf3;
  color: var(--navy);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--navy);
}

.btn-outline:hover {
  background: var(--navy);
  color: #fff;
}

/* ---------- Main content ---------- */
main {
  padding: 40px 0 60px;
}

.page-intro {
  color: var(--gray);
  font-size: 1.05rem;
  max-width: 700px;
}

/* ---------- Cards / teasers ---------- */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 28px;
}

@media (min-width: 700px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
}

.card .card-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray);
  font-weight: 600;
  margin-bottom: 6px;
}

.card h3 {
  margin-top: 0;
  font-size: 1.15rem;
}

.card p {
  color: var(--gray);
  flex-grow: 1;
}

.card a.card-link {
  font-weight: 600;
  text-decoration: none;
}

.card a.card-link::after {
  content: " \2192";
}

/* ---------- Checklist component ---------- */
.checklist {
  list-style: none;
  padding: 0;
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.checklist li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.checklist .check-icon {
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1.5px solid var(--navy);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.checklist .check-icon svg {
  width: 14px;
  height: 14px;
  stroke: var(--navy);
}

.checklist strong {
  color: var(--navy);
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-heading);
  font-size: 1rem;
}

/* ---------- Numbered steps ---------- */
.steps {
  list-style: none;
  padding: 0;
  margin: 20px 0;
  counter-reset: step-counter;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.steps li {
  counter-increment: step-counter;
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--navy);
  border-radius: var(--radius);
  padding: 16px 18px 16px 54px;
  position: relative;
}

.steps li::before {
  content: counter(step-counter);
  position: absolute;
  left: 14px;
  top: 14px;
  width: 26px;
  height: 26px;
  background: var(--navy);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.steps strong {
  color: var(--navy);
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-heading);
}

/* ---------- Table ---------- */
.table-wrap {
  overflow-x: auto;
  margin: 20px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

table {
  border-collapse: collapse;
  width: 100%;
  min-width: 560px;
  background: var(--card);
}

th,
td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  vertical-align: top;
}

th {
  background: var(--bg);
  color: var(--navy);
  font-family: var(--font-heading);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: none;
}

/* ---------- Callout / red flags box ---------- */
.callout {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--navy);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 24px 0;
}

.callout h3 {
  margin-top: 0;
}

/* ---------- Article layout ---------- */
.article-meta {
  color: var(--gray);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

article.post {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

@media (min-width: 700px) {
  article.post {
    padding: 40px;
  }
}

.related-links {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.related-links ul {
  padding-left: 1.1em;
}

/* ---------- Blog list ---------- */
.post-list {
  list-style: none;
  padding: 0;
  margin: 28px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.post-list li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.post-list h2 {
  margin: 0 0 6px;
  font-size: 1.25rem;
}

.post-list p {
  margin: 0;
  color: var(--gray);
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--gray);
  margin-bottom: 18px;
}

.breadcrumb a {
  color: var(--gray);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy);
  color: #cdd9e4;
  padding: 36px 0 28px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

@media (min-width: 700px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.site-footer h4 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 10px;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.site-footer a {
  color: #cdd9e4;
  text-decoration: none;
  font-size: 0.92rem;
}

.site-footer a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid var(--navy-tint-1);
  margin-top: 26px;
  padding-top: 18px;
  font-size: 0.82rem;
  color: #9fb0bf;
}

/* ---------- Utility ---------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}