/* =========================================================
   oliverdudokvanheel.com — visual system
   Matches sister site changingstoriesbook.com
   Warm editorial / Gladwell-pop
   ========================================================= */

/* ----- Fonts ----- */
@import url('https://api.fontshare.com/v2/css?f[]=boska@500,500i,700&f[]=satoshi@400,500,700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600&display=swap');

/* ----- Tokens ----- */
:root {
  --bg:           #faf6ef;
  --bg-soft:      #f3ece0;
  --bg-card:      #fffaf2;
  --ink:          #1f1b16;
  --ink-soft:     #4a4339;
  --ink-mute:     #756c5d;
  --rule:         #e3dac8;
  --accent:       #c2562e;
  --accent-deep:  #a3431f;
  --sage:         #6f7f63;
  --gold:         #d8a83a;

  --font-display: 'Boska', 'Source Serif 4', Georgia, serif;
  --font-body:    'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-ui:      'Satoshi', 'Inter', system-ui, -apple-system, sans-serif;

  --maxw: 1180px;
  --maxw-text: 720px;
  --radius: 14px;
  --radius-pill: 999px;
  --shadow-soft: 0 1px 2px rgba(31,27,22,0.04), 0 8px 28px rgba(31,27,22,0.06);
}

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--accent-deep); }
p { margin: 0 0 1em; }

/* ----- Typography ----- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.012em;
  line-height: 1.08;
  color: var(--ink);
  margin: 0 0 0.4em;
}
h1 { font-size: clamp(2.6rem, 5.5vw, 4.4rem); }
h2 { font-size: clamp(2rem, 3.6vw, 2.8rem); line-height: 1.12; }
h3 { font-size: clamp(1.35rem, 2vw, 1.6rem); line-height: 1.2; }
h4 { font-size: 1.15rem; line-height: 1.3; }
.italic-accent { font-style: italic; color: var(--accent); }

.eyebrow {
  font-family: var(--font-ui);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  color: var(--ink-mute);
  display: inline-block;
  margin-bottom: 1rem;
}

.lede {
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--ink-soft);
  font-family: var(--font-body);
  max-width: 38ch;
}

.prose { max-width: var(--maxw-text); }
.prose p { font-size: 1.08rem; line-height: 1.72; }
.prose h2 { margin-top: 2.4em; }
.prose h3 { margin-top: 2em; }
.prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: 0.4em; }

/* ----- Layout ----- */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.section {
  padding: 5.5rem 0;
}
.section-soft { background: var(--bg-soft); }
.section + .section { border-top: 1px solid var(--rule); }
.section-tight { padding: 3.5rem 0; }

/* ----- Header / Nav ----- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 246, 239, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--rule);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: var(--maxw);
  margin: 0 auto;
}
.brand {
  font-family: var(--font-display);
  font-size: 1.18rem;
  color: var(--ink);
  letter-spacing: -0.01em;
  display: inline-flex; align-items: center; gap: 0.6rem;
}
.brand:hover { color: var(--ink); }
.brand-mark { width: 28px; height: 28px; color: var(--accent); }
.brand-name { font-weight: 500; }
.brand-sub {
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.66rem;
  color: var(--ink-mute);
  display: block;
  line-height: 1;
  margin-top: 3px;
}

.nav-links {
  display: flex; gap: 1.6rem; align-items: center;
  font-family: var(--font-ui);
  font-size: 0.95rem;
}
.nav-links a {
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
}
.nav-links a:hover, .nav-links a.is-active { color: var(--accent); }
.nav-links a.is-active::after {
  content: '';
  position: absolute; left: 0; right: 0; bottom: -2px;
  height: 2px; background: var(--accent);
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  background: none; border: 0; padding: 6px;
  cursor: pointer; color: var(--ink);
}
.nav-toggle svg { width: 26px; height: 26px; }

@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--rule);
    padding: 0.6rem 1.5rem 1.2rem;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--rule); }
  .nav-links a:last-child { border-bottom: 0; }
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.98rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, transform .15s ease;
  line-height: 1;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg-card);
}
.btn-primary:hover { background: var(--accent-deep); color: var(--bg-card); }
.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn-secondary:hover { background: var(--ink); color: var(--bg-card); }
.btn-arrow::after { content: '→'; transition: transform .15s ease; }
.btn:hover .btn-arrow::after { transform: translateX(3px); }

/* ----- Hero ----- */
.hero { padding: 5rem 0 4rem; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero h1 { margin-bottom: 1.2rem; }
.hero .lede { margin-bottom: 2rem; max-width: 36ch; }
.hero-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.hero-portrait {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  max-width: 320px;
  justify-self: end;
  background: var(--bg-card);
  aspect-ratio: 4/5;
}
.hero-portrait img { width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-portrait { max-width: 260px; margin: 0 auto; justify-self: center; }
  .hero .lede { max-width: 50ch; }
}

/* ----- Pillars (two-column) ----- */
.pillars {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem;
}
.pillar {
  background: var(--bg-card);
  padding: 2rem 2rem 2.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--rule);
}
.pillar-num {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.6rem;
}
.pillar h3 { margin-bottom: 0.6rem; }
.pillar p { color: var(--ink-soft); margin-bottom: 1rem; }
.pillar ul {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  color: var(--ink-soft);
  padding-left: 1.1em;
}
.pillar li { margin-bottom: 0.3em; }
@media (max-width: 700px) {
  .pillars { grid-template-columns: 1fr; }
}

/* ----- Logo strip ----- */
.logos {
  display: flex; flex-wrap: wrap;
  gap: 2.5rem; align-items: center; justify-content: center;
  font-family: var(--font-ui);
  color: var(--ink-mute);
  font-size: 0.92rem;
}
.logos span,
.logos a {
  padding: 0.5rem 0.8rem;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-mute);
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.logos a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ----- Writing list ----- */
.writing-list { display: grid; gap: 0; }
.writing-item {
  display: grid;
  grid-template-columns: 130px 1fr auto;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--rule);
}
.writing-date {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--ink-mute);
  letter-spacing: 0.05em;
}
.writing-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--ink);
  line-height: 1.25;
}
.writing-title:hover { color: var(--accent); }
.writing-meta {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
@media (max-width: 700px) {
  .writing-item { grid-template-columns: 1fr; gap: 0.4rem; }
}

/* ----- Cards / Topics ----- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.8rem;
}
.card h4 { color: var(--ink); margin-bottom: 0.6rem; }
.card p {
  font-family: var(--font-ui);
  color: var(--ink-soft);
  font-size: 0.96rem;
  margin: 0;
}
.card-eyebrow {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  display: block; margin-bottom: 0.6rem;
}

/* ----- Speaking page formats ----- */
.format-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
}
.format {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.format h4 { margin-bottom: 0.4rem; }
.format p {
  font-family: var(--font-ui);
  color: var(--ink-soft);
  font-size: 0.93rem;
  margin: 0;
}

/* ----- Pull quote ----- */
.pullquote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  line-height: 1.35;
  color: var(--ink);
  border-left: 3px solid var(--accent);
  padding: 0.4rem 0 0.4rem 1.6rem;
  margin: 2.5rem 0;
  max-width: 36ch;
}
.pullquote-attrib {
  display: block;
  margin-top: 0.8rem;
  font-family: var(--font-ui);
  font-style: normal;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ----- Two-col layout ----- */
.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem;
  align-items: start;
}
@media (max-width: 820px) { .split { grid-template-columns: 1fr; gap: 2rem; } }

/* ----- Substack callout ----- */
.subscribe-cta {
  background: var(--ink);
  color: var(--bg-card);
  padding: 3rem 2.5rem;
  border-radius: var(--radius);
  text-align: center;
}
.subscribe-cta h2 { color: var(--bg-card); margin-bottom: 0.6rem; }
.subscribe-cta p {
  color: rgba(255, 250, 242, 0.8);
  margin-bottom: 1.4rem;
  font-size: 1.05rem;
}
.subscribe-cta .btn-primary {
  background: var(--accent); color: var(--bg-card);
}

/* ----- Book panel ----- */
.book-panel {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 3rem;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 3rem;
}
.book-cover {
  aspect-ratio: 2/3;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  border-radius: 6px;
  box-shadow: var(--shadow-soft);
  display: flex; align-items: center; justify-content: center;
  padding: 2rem; text-align: center;
}
.book-cover-text {
  font-family: var(--font-display);
  color: var(--bg-card);
  font-size: 1.6rem;
  line-height: 1.15;
  font-weight: 500;
}
.book-cover-text em { display: block; font-style: italic; color: var(--gold); margin-top: 0.3em; }
@media (max-width: 820px) {
  .book-panel { grid-template-columns: 1fr; padding: 2rem; }
  .book-cover { max-width: 220px; margin: 0 auto; }
}

/* ----- Contact form ----- */
.form-grid {
  display: grid; gap: 1.1rem;
  max-width: 560px;
}
.field { display: grid; gap: 0.35rem; }
.field label {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.field input, .field select, .field textarea {
  font-family: var(--font-ui);
  font-size: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--ink);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(194, 86, 46, 0.15);
}
.form-grid .btn-primary { justify-self: start; margin-top: 0.5rem; }
#form-status {
  margin-top: 1rem;
  font-family: var(--font-ui);
  font-size: 0.95rem;
  color: var(--sage);
  min-height: 1.4em;
}

/* ----- Footer ----- */
.site-footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--rule);
  padding: 3rem 0 2rem;
  font-family: var(--font-ui);
  font-size: 0.92rem;
  color: var(--ink-mute);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 1.5rem;
}
.footer-tagline {
  font-family: var(--font-display);
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.4;
  max-width: 38ch;
}
.footer-col h5 {
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  color: var(--ink-mute);
  margin: 0 0 0.8rem;
  font-weight: 500;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 0.4rem; }
.footer-col a { color: var(--ink-soft); }
.footer-col a:hover { color: var(--accent); }
.footer-base {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1rem;
}
@media (max-width: 700px) {
  .footer-grid { grid-template-columns: 1fr; gap: 1.6rem; }
}

/* ----- Utilities ----- */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.6rem; }
.mt-2 { margin-top: 1.2rem; }
.mt-3 { margin-top: 2rem; }
.mt-4 { margin-top: 3rem; }
.mb-0 { margin-bottom: 0; }
.muted { color: var(--ink-mute); }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ----- Report cards (Writing page) ----- */
.reports {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 2.4rem;
}
.report {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.report:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(31, 27, 22, 0.08);
}
.report-cover {
  display: block;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--rule);
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.report-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.report-body {
  padding: 1.6rem 1.7rem 1.8rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.report-eyebrow {
  font-family: var(--font-ui);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 0.7rem;
}
.report-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.35rem;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 0.7rem;
}
.report-desc {
  font-family: var(--font-body);
  font-size: 0.98rem;
  color: var(--ink-soft);
  margin: 0 0 1.2rem;
  flex: 1;
}
.report-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: auto;
}
.report-actions .btn {
  font-size: 0.88rem;
  padding: 0.55rem 1.1rem;
}