/* ============================================================
   Kwestie van Data — Design tokens from ABL Visual Identity
   ============================================================ */

:root {
  /* Colors */
  --color-zwart:   #141414;
  --color-wit:     #FFFFFF;
  --color-paper-1: #F3F5F0;
  --color-paper-2: #EAEDE6;
  --color-paper-3: #D1D6CB;
  --color-paper-4: #74786F;

  /* Fonts (Google Fonts fallbacks; swap for ABL fonts when available) */
  --font-serif: 'Lora', 'Times New Roman', Georgia, serif;
  --font-sans:  'Geist', 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:  'Geist Mono', 'JetBrains Mono', ui-monospace, monospace;

  /* Type scale (fluid, desktop max from Figma) */
  --text-title:    clamp(48px, 9vw, 120px);
  --text-display:  clamp(40px, 6vw, 80px);
  --text-h2:       clamp(32px, 4vw, 56px);
  --text-h3:       clamp(24px, 2.6vw, 36px);
  --text-body-1:   clamp(20px, 1.8vw, 28px);
  --text-body-2:   clamp(18px, 1.4vw, 20px);
  --text-body-3:   18px;
  --text-meta:     14px;
  --text-meta-lg:  16px;

  /* Spacing */
  --space-page-x:  clamp(20px, 5vw, 80px);
  --space-section: clamp(64px, 10vw, 160px);
  --space-block:   clamp(32px, 5vw, 64px);

  /* Layout */
  --max-content: 1760px;
  --max-text:    760px;
}

/* ============================================================
   Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-paper-1);
  color: var(--color-zwart);
  font-family: var(--font-sans);
  font-size: var(--text-body-3);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 400; line-height: 1; letter-spacing: -0.03em; }

::selection { background: var(--color-zwart); color: var(--color-paper-1); }

/* ============================================================
   Typography helpers
   ============================================================ */
.t-title {
  font-family: var(--font-serif);
  font-size: var(--text-title);
  line-height: 0.95;
  letter-spacing: -0.05em;
}
.t-display {
  font-family: var(--font-serif);
  font-size: var(--text-display);
  line-height: 1;
  letter-spacing: -0.04em;
}
.t-h2 {
  font-family: var(--font-serif);
  font-size: var(--text-h2);
  line-height: 1.05;
  letter-spacing: -0.04em;
}
.t-h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--text-h3);
  letter-spacing: -0.03em;
}
.t-body-1 {
  font-family: var(--font-serif);
  font-size: var(--text-body-1);
  line-height: 1.3;
  letter-spacing: -0.02em;
}
.t-body-2 {
  font-family: var(--font-sans);
  font-size: var(--text-body-2);
  line-height: 1.5;
}
.t-meta {
  font-family: var(--font-mono);
  font-size: var(--text-meta-lg);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1;
}
.t-meta-sm {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1;
}
.t-muted { color: var(--color-paper-4); }

/* ============================================================
   Layout primitives
   ============================================================ */
.page {
  padding-inline: var(--space-page-x);
  margin-inline: auto;
  max-width: var(--max-content);
}
.section { padding-block: var(--space-section); }
.section--tight { padding-block: var(--space-block); }
.divider { border: 0; border-top: 1px solid var(--color-paper-3); margin: 0; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--color-paper-1) 88%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-paper-3);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-serif);
  font-size: 22px;
  letter-spacing: -0.03em;
  color: var(--color-zwart);
}
.brand__icon {
  width: 28px;
  height: 28px;
  object-fit: contain;
}
.site-nav {
  display: flex;
  gap: 28px;
}
.site-nav a {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-zwart);
  position: relative;
  padding-block: 4px;
}
.site-nav a:hover { color: var(--color-paper-4); }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--color-paper-3);
  padding-block: 56px;
  margin-top: var(--space-section);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: end;
}
.site-footer__attribution {
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--color-paper-4);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.site-footer__wordmark {
  width: 180px;
  height: auto;
  opacity: 0.85;
}
.site-footer__meta {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  color: var(--color-paper-4);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ============================================================
   Hero (homepage)
   ============================================================ */
.hero {
  padding-block: clamp(80px, 14vw, 200px) clamp(64px, 10vw, 140px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
}
.hero__label {
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero__label::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--color-zwart);
}
.hero__title {
  font-family: var(--font-serif);
  font-size: var(--text-title);
  line-height: 0.92;
  letter-spacing: -0.05em;
  max-width: 14ch;
}
.hero__lede {
  font-family: var(--font-serif);
  font-size: var(--text-body-1);
  line-height: 1.3;
  letter-spacing: -0.02em;
  max-width: 28ch;
  color: var(--color-zwart);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

/* ============================================================
   Button
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-radius: 8px;
  border: 1px solid var(--color-zwart);
  background: var(--color-zwart);
  color: var(--color-paper-1);
  font-family: var(--font-mono);
  font-size: var(--text-meta-lg);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1;
  transition: background 120ms ease, color 120ms ease, transform 120ms ease;
}
.btn:hover { background: transparent; color: var(--color-zwart); }
.btn:active { transform: translateY(1px); }
.btn--ghost {
  background: transparent;
  color: var(--color-zwart);
}
.btn--ghost:hover { background: var(--color-zwart); color: var(--color-paper-1); }
.btn__arrow { font-family: var(--font-sans); font-size: 18px; line-height: 1; }

/* ============================================================
   Episode archive (homepage list)
   ============================================================ */
.archive-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-zwart);
  margin-bottom: 0;
}
.archive-heading__count { color: var(--color-paper-4); }
.archive {
  display: flex;
  flex-direction: column;
}
.episode-row {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: clamp(20px, 4vw, 56px);
  align-items: baseline;
  padding-block: clamp(32px, 4vw, 48px);
  border-bottom: 1px solid var(--color-paper-3);
  transition: background 160ms ease, padding 160ms ease;
  position: relative;
}
.episode-row:hover {
  background: linear-gradient(to right, transparent, var(--color-paper-2) 8%, var(--color-paper-2) 92%, transparent);
}
.episode-row__number {
  font-family: var(--font-mono);
  font-size: var(--text-meta-lg);
  color: var(--color-paper-4);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  align-self: start;
  padding-top: 6px;
}
.episode-row__body { min-width: 0; }
.episode-row__title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.4vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 14px;
  color: var(--color-zwart);
}
.episode-row__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-paper-4);
}
.episode-row__meta-sep {
  display: inline-block;
  width: 1px;
  height: 10px;
  background: currentColor;
  opacity: 0.4;
  margin-inline: 4px;
  transform: translateY(1px);
}
.episode-row__duration {
  font-family: var(--font-mono);
  font-size: var(--text-meta-lg);
  color: var(--color-paper-4);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  align-self: start;
  padding-top: 6px;
  white-space: nowrap;
}
.episode-row__arrow {
  font-family: var(--font-sans);
  font-size: 24px;
  margin-left: 6px;
  transition: transform 200ms ease;
  display: inline-block;
}
.episode-row:hover .episode-row__arrow { transform: translateX(6px); }

/* ============================================================
   Episode page — hero
   ============================================================ */
.episode-hero {
  padding-block: clamp(56px, 10vw, 120px) clamp(40px, 6vw, 64px);
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}
.episode-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-paper-4);
}
.episode-hero__breadcrumb a:hover { color: var(--color-zwart); }
.episode-hero__title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5.6vw, 88px);
  line-height: 1;
  letter-spacing: -0.04em;
  max-width: 22ch;
}
.episode-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: center;
  color: var(--color-paper-4);
}

/* ============================================================
   Players (YouTube + Spotify)
   ============================================================ */
.players { display: grid; gap: clamp(20px, 2.5vw, 28px); }
@media (min-width: 960px) {
  .players { grid-template-columns: 1.6fr 1fr; }
}
.player-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.player-card__label {
  display: flex;
  align-items: center;
  gap: 10px;
}
.player-card__label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-paper-3);
}
.player-card__frame {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--color-zwart);
  border: 1px solid var(--color-paper-3);
}
.player-card__frame iframe {
  width: 100%;
  border: 0;
  display: block;
}
.player-card--youtube .player-card__frame { aspect-ratio: 16 / 9; }
.player-card--youtube .player-card__frame iframe { height: 100%; }
.player-card--spotify .player-card__frame { aspect-ratio: 1 / 1; }
.player-card--spotify .player-card__frame iframe { height: 100%; min-height: 232px; }

/* ============================================================
   Episode body sections
   ============================================================ */
.episode-section { padding-block: clamp(56px, 7vw, 96px); border-top: 1px solid var(--color-paper-3); }
.episode-section__label { margin-bottom: clamp(28px, 4vw, 48px); }
.episode-section__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
}
@media (min-width: 900px) {
  .episode-section__grid { grid-template-columns: minmax(0, 280px) 1fr; align-items: start; }
}
.episode-section__heading {
  font-family: var(--font-mono);
  font-size: var(--text-meta-lg);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-zwart);
  position: sticky;
  top: 96px;
}
.episode-description {
  font-family: var(--font-serif);
  font-size: var(--text-body-1);
  line-height: 1.4;
  letter-spacing: -0.02em;
  max-width: var(--max-text);
}

/* ============================================================
   Guest cards
   ============================================================ */
.guests {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3vw, 40px);
}
@media (min-width: 720px) {
  .guests { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
}
.guest {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 20px;
  align-items: start;
}
.guest__photo {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-paper-2);
  border: 1px solid var(--color-paper-3);
}
.guest__photo--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--color-paper-4);
  line-height: 1;
}
.guest__body { display: flex; flex-direction: column; gap: 8px; }
.guest__name {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.guest__role {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-paper-4);
  line-height: 1.2;
}
.guest__bio {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--color-zwart);
  margin: 4px 0 0;
}

/* ============================================================
   Transcript — fade-out preview, click to expand
   ============================================================ */
.transcript { max-width: var(--max-text); }

.transcript__shell {
  position: relative;
  background: var(--color-paper-2);
  border: 1px solid var(--color-paper-3);
  border-radius: 12px;
  overflow: hidden;
}
.transcript__content {
  padding: clamp(24px, 3vw, 40px);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-zwart);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 360px;
  overflow: hidden;
  transition: max-height 420ms cubic-bezier(0.4, 0, 0.2, 1);
}
.transcript__shell--expanded .transcript__content {
  overflow: visible;
}
/* Fade gradient overlay, visible only in collapsed state */
.transcript__fade {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 220px;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    rgba(234, 237, 230, 0) 0%,
    rgba(234, 237, 230, 0.85) 55%,
    rgba(234, 237, 230, 1) 100%
  );
  transition: opacity 300ms ease;
}
.transcript__shell--expanded .transcript__fade {
  opacity: 0;
}

.transcript__toggle-wrap {
  display: flex;
  justify-content: center;
  margin-top: -28px;
  position: relative;
  z-index: 1;
}
.transcript__toggle {
  appearance: none;
  background: var(--color-zwart);
  color: var(--color-paper-1);
  border: 1px solid var(--color-zwart);
  border-radius: 999px;
  padding: 14px 24px;
  font-family: var(--font-mono);
  font-size: var(--text-meta-lg);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  box-shadow: 0 8px 24px -8px rgba(20, 20, 20, 0.18);
  transition: transform 140ms ease, background 140ms ease, color 140ms ease;
}
.transcript__toggle:hover {
  transform: translateY(-1px);
}
.transcript__toggle:active { transform: translateY(0); }
.transcript__toggle[aria-expanded="true"] .transcript__chevron {
  transform: rotate(180deg);
}
.transcript__chevron {
  display: inline-block;
  transition: transform 280ms ease;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1;
}

.transcript__loading {
  padding: clamp(24px, 3vw, 40px);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  color: var(--color-paper-4);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
[hidden] { display: none !important; }

/* ============================================================
   Responsive — mobile adjustments
   ============================================================ */
@media (max-width: 720px) {
  .episode-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding-block: 28px;
  }
  .episode-row__duration { padding-top: 0; }
  .episode-section__heading { position: static; }
  .site-footer__inner { grid-template-columns: 1fr; gap: 24px; }
  .guest { grid-template-columns: 64px 1fr; gap: 16px; }
  .guest__photo { width: 64px; height: 64px; }
}

@media (max-width: 480px) {
  .site-nav { gap: 16px; }
  .brand { font-size: 18px; }
  .brand__icon { width: 24px; height: 24px; }
}