/* ==========================================================================
   executive. — styles.css
   Editorial visual system. Restrained, paper-like, no decoration without intent.
   ========================================================================== */

/* ---- Custom Properties (light mode, default) ---- */
:root {
  /* Colors — light theme */
  --bg-primary: #fafaf8;
  --bg-secondary: #f5f4f0;
  --bg-tertiary: #efede6;
  --text-primary: #1a1a1a;
  --text-secondary: #4a4a4a;
  --text-tertiary: #6b6b6b;
  --accent: #2c5f7c;
  --accent-hover: #1e4a5f;
  --accent-light: #e8f0f5;
  --border: #e0ded8;
  --border-hover: #c8c5be;

  /* Network nodes */
  --node-default: #2c5f7c;
  --node-hover: #d4a574;
  --node-active: #1e4a5f;
  --node-edge: #8a8780;

  /* Form state colors */
  --color-error: #b85450;

  /* Typography */
  --font-display: 'Source Serif Pro', georgia, 'Times New Roman', serif;
  --font-body: 'Source Sans 3', 'Source Sans Pro', -apple-system, blinkmacsystemfont, 'Segoe UI', sans-serif;

  /* Spacing scale (8px base) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --space-9: 128px;

  /* Reading */
  --reading-width: 38rem;  /* ~65-75 chars at our font size */

  /* Motion */
  --transition-fast: 150ms ease;
  --transition-medium: 250ms ease;
}

/* ---- Dark mode (OS preference) ---- */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #222220;
    --bg-tertiary: #2a2a28;
    --text-primary: #e8e6e3;
    --text-secondary: #b0ada6;
    --text-tertiary: #8a8780;
    --accent: #6b9bb5;
    --accent-hover: #8db8d0;
    --accent-light: #1e3a4a;
    --border: #3a3a38;
    --border-hover: #5a5a58;
    --node-default: #6b9bb5;
    --node-hover: #d4a574;
    --node-active: #8db8d0;
    --node-edge: #5a5a58;
  }
}

/* ---- Font self-hosting ---- */
@font-face {
  font-family: 'Source Serif Pro';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/source-serif-pro-regular-400.woff2') format('woff2');
}

@font-face {
  font-family: 'Source Serif Pro';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/source-serif-pro-italic-400.woff2') format('woff2');
}

@font-face {
  font-family: 'Source Serif Pro';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/source-serif-pro-semibold-600.woff2') format('woff2');
}

@font-face {
  font-family: 'Source Sans 3';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/source-sans-3-var.woff2') format('woff2');
}

/* ---- Reset & base ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  text-rendering: optimizelegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  max-width: var(--reading-width);
  margin: 0 auto;
  padding: var(--space-6) var(--space-4);
  width: 100%;
}

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

/* ---- Skip link ---- */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-3);
  z-index: 1000;
  padding: var(--space-2) var(--space-3);
  background: var(--text-primary);
  color: var(--bg-primary);
  text-decoration: none;
  font-weight: 600;
  border-radius: 2px;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-2);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---- Site header ---- */
.site-header {
  padding: var(--space-7) var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: var(--reading-width);
  margin: 0 auto;
}

.site-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-2) 0;
  line-height: 1.1;
  color: var(--text-primary);
}

.site-subtitle {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-tertiary);
  margin: 0;
  font-style: italic;
}

/* ---- Main layout ---- */

/* (merged into earlier main { } rule) */

/* ---- Essay section ---- */
.essay {
  margin-bottom: var(--space-8);
}

.essay-header {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.essay-kicker {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  margin: 0 0 var(--space-3) 0;
}

.essay-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin: 0 0 var(--space-3) 0;
  color: var(--text-primary);
}

.essay-subtitle {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  font-style: italic;
  color: var(--text-secondary);
  margin: 0 0 var(--space-3) 0;
  line-height: 1.4;
}

.essay-byline {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin: 0;
}

.essay-body p {
  margin: 0 0 var(--space-4) 0;
}

.essay-body .essay-lead {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.4;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
}

.essay-subheading {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin: var(--space-6) 0 var(--space-3) 0;
  color: var(--text-primary);
}

.essay-pullquote {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  font-style: italic;
  line-height: 1.4;
  color: var(--text-primary);
  margin: var(--space-5) 0;
  padding: 0 0 0 var(--space-4);
  border-left: 2px solid var(--accent);
}

.essay-question {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.4;
  color: var(--accent);
  margin: var(--space-5) 0;
  font-style: italic;
}

.essay-quote {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-primary);
  text-align: center;
  margin: var(--space-5) var(--space-4);
  font-style: italic;
  border: none;
  padding: 0;
}

.essay-quote p {
  margin: 0;
}

.essay-quote footer {
  display: block;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-style: normal;
  color: var(--text-tertiary);
  margin-top: var(--space-2);
}

/* ---- Section headers (network, other, contact) ---- */
.section-header {
  margin-bottom: var(--space-5);
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin: 0 0 var(--space-3) 0;
  color: var(--text-primary);
}

.section-intro {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* ---- Network visualization ---- */
.network {
  margin-bottom: var(--space-8);
  padding: var(--space-6) 0;
  border-top: 1px solid var(--border);
}

.network-wrapper {
  position: relative;
  width: 100%;
  margin: var(--space-3) 0 0 0;
  padding: var(--space-4) 0;
}

.network-svg {
  width: 100%;
  height: auto;
  display: block;

  /* Override any default border */
  border: none;
}

.node {
  cursor: pointer;
  outline: none;
  transition: opacity var(--transition-fast);
}

/* Visible focus indicator for keyboard users on SVG nodes.
   :focus-visible (not :focus) so mouse clicks don't trigger the ring. */
.node:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
  border-radius: 50%;
}

.node circle {
  fill: var(--bg-primary);
  stroke: var(--node-default);
  stroke-width: 2;
  transition: fill var(--transition-fast), stroke var(--transition-fast), r var(--transition-fast);
}

.node:hover circle,
.node:focus circle,
.node.is-active circle {
  fill: var(--node-hover);
  stroke: var(--node-active);
}

.node-label,
.node-label-small {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  fill: var(--text-secondary);
  pointer-events: none;
  user-select: none;
}

.node-label-small {
  font-size: 11px;
}

.node:hover .node-label,
.node:hover .node-label-small,
.node.is-active .node-label,
.node.is-active .node-label-small {
  fill: var(--text-primary);
}

.network-tooltip {
  position: absolute;
  bottom: var(--space-5);
  left: 0;
  right: 0;
  text-align: center;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-style: italic;
  color: var(--text-secondary);
  padding: var(--space-2) var(--space-3);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.network-tooltip[aria-hidden="false"] {
  opacity: 1;
}

.network-tooltip strong {
  font-weight: 600;
  font-style: normal;
  color: var(--text-primary);
  display: block;
  margin-bottom: var(--space-1);
}

/* ---- Other essays list ---- */
.other {
  margin-bottom: var(--space-8);
  padding: var(--space-5) 0;
  border-top: 1px solid var(--border);
}

.essay-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.essay-list li {
  border-bottom: 1px solid var(--border);
  padding: var(--space-3) 0;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 1.125rem;
  line-height: 1.4;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.essay-list li:hover {
  color: var(--text-primary);
  padding-left: var(--space-2);
}

.essay-list li:last-child {
  border-bottom: none;
}

.essay-list-note {
  margin: var(--space-3) 0 0 0;
  font-size: 0.875rem;
  color: var(--text-tertiary);
  text-align: center;
  font-style: italic;
}

.essay-list-note em {
  font-style: italic;
}

/* ---- Essay bridge (tussen essay en netwerk) ---- */
.essay-bridge {
  max-width: 32rem;
  margin: var(--space-7) auto var(--space-7);
  padding: var(--space-5) 0;
  text-align: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.essay-bridge > p:first-child {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--text-primary);
  margin: 0 auto var(--space-4);
  max-width: 28rem;
}

.essay-bridge-links {
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-top: var(--space-3);
}

.essay-bridge-links a {
  color: var(--text-secondary);
  text-decoration: underline;
  text-decoration-color: var(--border);
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}

.essay-bridge-cta {
  font-family: var(--font-body);
  font-style: normal;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: var(--space-3);
  margin-bottom: 0;
}

.essay-bridge-cta a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.essay-bridge-cta a:hover,
.essay-bridge-cta a:focus {
  color: var(--accent-hover);
  border-color: var(--accent-hover);
}

/* ---- Forum section ---- */
.forum {
  margin-bottom: var(--space-8);
  padding: var(--space-6) 0;
  border-top: 1px solid var(--border);
}

.forum-body {
  max-width: 32rem;
  margin: var(--space-5) auto 0;
}

.forum-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin: 0 0 var(--space-2) 0;
}

.forum-thema {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text-primary);
  margin: 0 0 var(--space-4) 0;
}

.forum-vragen {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-5) 0;
}

.forum-vragen li {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-display);
  font-size: 1.0625rem;
  line-height: 1.5;
  color: var(--text-primary);
}

.forum-vragen li:last-child {
  border-bottom: none;
}

.forum-details {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2) var(--space-3);
  margin: 0 0 var(--space-5) 0;
  font-size: 0.9375rem;
}

.forum-details div {
  display: contents;
}

.forum-details dt {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.forum-details dd {
  font-family: var(--font-body);
  color: var(--text-primary);
  margin: 0;
}

.forum-cta {
  text-align: center;
  margin: var(--space-4) 0 0;
}

.forum-cta a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  font-family: var(--font-body);
  font-weight: 600;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.forum-cta a:hover,
.forum-cta a:focus {
  color: var(--accent-hover);
  border-color: var(--accent-hover);
}

.contact-forum-link {
  color: var(--accent);
  white-space: nowrap;
}

@media (width <= 480px) {
  .contact-forum-link {
    white-space: normal;
  }
}

/* ---- Form radio field ---- */
.form-field-keuze {
  border: none;
  padding: 0;
  margin: 0 0 var(--space-4) 0;
}

.form-field-keuze legend {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
  letter-spacing: 0.01em;
}

.radio-label {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-primary);
  line-height: 1.5;
  cursor: pointer;
  padding: var(--space-2) 0;
}

.radio-label input[type="radio"] {
  accent-color: var(--accent);
  margin-top: 0.2em;
  flex-shrink: 0;
}

/* ---- Contact section ---- */
.contact {
  margin-bottom: var(--space-7);
  padding: var(--space-5) 0;
  border-top: 1px solid var(--border);
}

.contact-form {
  max-width: 32rem;
  margin: var(--space-5) auto 0;
  padding: 0;
  text-align: left;
}

.form-field {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-4);
}

.form-field label {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
  letter-spacing: 0.01em;
}

.form-field .required {
  color: var(--accent);
  font-weight: 400;
}

.form-field input[type="text"],
.form-field input[type="email"] {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: var(--space-3);
  width: 100%;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.form-field input[type="text"]:hover,
.form-field input[type="email"]:hover {
  border-color: var(--border-hover);
}

.form-field input[type="text"]:focus,
.form-field input[type="email"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: var(--accent);
}

.form-field input::placeholder {
  color: var(--text-tertiary);
  font-style: italic;
}

.form-field input:invalid:not(:placeholder-shown) {
  border-color: var(--color-error);
}

.form-field input:invalid:not(:placeholder-shown):focus {
  outline-color: var(--color-error);
}

.form-field-consent {
  margin-top: var(--space-2);
  margin-bottom: var(--space-5);
}

.consent-label {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--space-3);
  font-weight: 400 !important;
  font-size: 0.875rem !important;
  color: var(--text-secondary) !important;
  line-height: 1.5;
  cursor: pointer;
}

.consent-label input[type="checkbox"] {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--accent);
  cursor: pointer;
}

.consent-label a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--border);
}

.consent-label a:hover,
.consent-label a:focus {
  color: var(--accent-hover);
  text-decoration-color: var(--accent-hover);
}

.form-submit {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--accent);
  border: none;
  padding: var(--space-3) var(--space-5);
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: background var(--transition-fast), transform var(--transition-fast);
  width: 100%;
}

.form-submit:hover,
.form-submit:focus {
  background: var(--accent-hover);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.form-submit:disabled {
  background: var(--text-tertiary);
  cursor: not-allowed;
}

.form-submit-loader {
  display: none;
}

.form-submit.is-loading .form-submit-text {
  display: none;
}

.form-submit.is-loading .form-submit-loader {
  display: inline;
}

.form-status {
  margin-top: var(--space-3);
  font-size: 0.9375rem;
  min-height: 1.5em;
}

.form-status.is-success {
  color: var(--accent);
}

.form-status.is-error {
  color: var(--color-error);
}

.contact-email-fallback {
  text-align: center;
  margin-top: var(--space-5);
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.contact-email-fallback a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--border);
}

.contact-email-fallback a:hover,
.contact-email-fallback a:focus {
  color: var(--accent-hover);
  text-decoration-color: var(--accent-hover);
}

.contact-linkedin-fallback {
  text-align: center;
  margin-top: var(--space-5);
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.contact-linkedin-fallback a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--border);
}

.contact-linkedin-fallback a:hover,
.contact-linkedin-fallback a:focus {
  color: var(--accent-hover);
  text-decoration-color: var(--accent-hover);
}

.form-field .optional {
  color: var(--text-tertiary);
  font-weight: 400;
  font-size: 0.8125rem;
  margin-left: var(--space-1);
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-5) var(--space-4);
  text-align: center;
  max-width: var(--reading-width);
  margin: 0 auto;
  width: 100%;
}

.colophon {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  margin: 0 0 var(--space-1) 0;
}

.colophon a {
  color: var(--text-tertiary);
  text-decoration: underline;
  text-decoration-color: var(--border);
}

.colophon a:hover,
.colophon a:focus {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

/* ---- 404 page specific ---- */
.page-404 {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page-404 main {
  max-width: 32rem;
  margin: 0 auto;
  padding: var(--space-8) var(--space-4);
  text-align: center;
  flex: 1;
}

.not-found-kicker {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-tertiary);
  margin: 0 0 var(--space-3) 0;
}

.not-found-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  margin: 0 0 var(--space-4) 0;
  color: var(--text-primary);
}

.not-found-text {
  color: var(--text-secondary);
  margin: 0 0 var(--space-5) 0;
}

.not-found-cta a {
  font-family: var(--font-display);
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}

.not-found-cta a:hover,
.not-found-cta a:focus {
  color: var(--accent-hover);
}

.not-found-cta a:focus {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.essay-bridge-links a:hover,
.essay-bridge-links a:focus {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

/* ---- Reading progress indicator ---- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--accent);
  width: 0;
  z-index: 999;
  transition: width 100ms linear;
  pointer-events: none;
}

/* ---- Scroll reveal animations ----
   Only hide elements when JS is enabled — if JS is off, show everything
   immediately so content is still readable. */
.js-enabled .reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.js-enabled .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ---- Responsive ---- */
@media (width <= 768px) {
  .site-header {
    padding: var(--space-5) var(--space-3) var(--space-4);
  }

  main {
    padding: var(--space-4) var(--space-3);
  }

  .essay-lead {
    font-size: 1.25rem;
  }

  .essay-pullquote,
  .essay-question {
    font-size: 1.25rem;
  }

  .network-tooltip {
    font-size: 0.875rem;
  }

  .forum-thema {
    font-size: 1.375rem;
  }

  .forum-details {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .forum-details div {
    display: flex;
    gap: var(--space-2);
  }
}

@media (width <= 480px) {
  body {
    font-size: 1rem;
  }

  .site-title {
    font-size: 2rem;
  }

  .essay-title {
    font-size: 1.625rem;
  }

  .essay-list a {
    font-size: 1rem;
  }

  .forum-thema {
    font-size: 1.25rem;
  }
}

/* ---- Print ---- */
@media print {
  :root {
    --bg-primary: #fff;
    --text-primary: #000;
    --text-secondary: #222;
    --accent: #000;
    --border: #ccc;
  }

  body {
    font-size: 11pt;
    line-height: 1.5;
  }

  .site-header {
    border-bottom: 1pt solid #000;
    padding: 0 0 12pt;
  }

  .network,
  .forum,
  .reading-progress,
  .site-footer,
  .skip-link {
    display: none !important;
  }

  .essay-pullquote,
  .essay-question {
    border-color: #000;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #555;
  }

  a[href^="/"]::after,
  a[href^="#"]::after {
    content: "";
  }

  .essay-list a,
  .contact-email a,
  .not-found-cta a,
  .colophon a {
    border-bottom: none;
  }

  .essay,
  .other,
  .contact {
    page-break-inside: avoid;
  }
}

/* ---- Selection ----
   Use accent-hover (darker shade) for selection background to ensure
   WCAG AA contrast on selected text in both light and dark modes. */
::selection {
  background: var(--accent-hover);
  color: var(--bg-primary);
}

/* ---- Vercel toolbar / build info ----
   Verbergt de Vercel deployment-info widget rechtsonder. */
#vercel-toolbar,
.vercel-toolbar,
iframe[src*="vercel"],
[class*="vercel"][class*="toolbar"] {
  display: none !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

/* ---- Focus visible (for keyboard users) ---- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}