/* radiopro.dev - Blueprint ("Ink & Voltage") Design System
 * Authoritative stylesheet implementing DESIGN.md tokens, typography, and components.
 * Self-hosted WOFF2 fonts, flat fills, 1px hairline structure, 2px radius, zero elevation.
 */

@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/bricolage-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/bricolage-700.woff2') format('woff2');
}
@font-face {
  font-family: 'Public Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/publicsans-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Public Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/publicsans-600.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/jetbrainsmono-400.woff2') format('woff2');
}

:root {
  /* Five locked colour tokens (DESIGN.md §2) */
  --paper: #F4F6F9;
  --ink: #0A0E14;
  --brand: #1B3FE0;
  --steel: #5B6472;
  --line: #DDE2EA;

  /* Functional ramp & wav-forms integration tokens (DESIGN.md §2.5, PLAN.md §6.2) */
  --brand-hover: #1430A9;
  --brand-ink: #FFFFFF;
  --wav-accent: #1B3FE0;
  --wav-accent-text: #FFFFFF;
  --wav-radius: 2px;
  --wav-ok: #0A0E14;
  --wav-error: #0A0E14;

  /* Font stacks (DESIGN.md §3) */
  --font-display: 'Bricolage Grotesque', 'Bricolage Fallback', 'Trebuchet MS', system-ui, sans-serif;
  --font-body: 'Public Sans', 'Public Sans Fallback', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;

  /* Fluid clamp() type scale (DESIGN.md §3) */
  --size-display: clamp(2.15rem, 3.4vw + 1rem, 3.5rem);
  --size-h1: clamp(1.95rem, 2.8vw + 0.9rem, 3rem);
  --size-h2: clamp(1.4rem, 1.8vw + 0.75rem, 2rem);
  --size-h3: clamp(1.15rem, 1vw + 0.7rem, 1.375rem);
  --size-lead: clamp(1.0625rem, 0.45vw + 0.95rem, 1.225rem);
  --size-body: 1.0625rem;
  --size-small: 0.9375rem;
  --size-mono: 0.8125rem;

  /* Layout & geometry (DESIGN.md §4) */
  color-scheme: light;
  --max-w: 1344px;
  --pad-x: clamp(20px, 5vw, 72px);
  --gutter: 24px;
  --radius: 2px;
  --r-card: 2px;
  --r-shell: 2px;
  --r-ctrl: 2px;
  --r-pill: 2px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  color-scheme: light;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: 1.65;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

main {
  flex: 1 0 auto;
}

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

a {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
  transition: color 120ms ease-out, background-color 120ms ease-out, border-color 120ms ease-out;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

/* Skip link for keyboard navigation */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--pad-x);
  z-index: 200;
  background: var(--brand);
  color: var(--brand-ink);
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  padding: 10px 16px;
  border-radius: var(--radius);
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

/* Layout Containers & 12-Col Grid */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
}

.section {
  padding-block: clamp(56px, 7vw, 96px);
  border-bottom: 1px solid var(--line);
}

.section-tight {
  padding-block: clamp(36px, 4.5vw, 64px);
  border-bottom: 1px solid var(--line);
}

/* Typography Primitives */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.h-display {
  font-size: var(--size-display);
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.h1 {
  font-size: var(--size-h1);
  line-height: 1.08;
  letter-spacing: -0.022em;
}

.h2 {
  font-size: var(--size-h2);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.015em;
}

.h2-ruled {
  font-size: var(--size-h2);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.015em;
  border-left: 3px solid var(--brand);
  padding-left: 16px;
  margin-bottom: 20px;
}

.h3 {
  font-size: var(--size-h3);
  font-weight: 600;
  line-height: 1.25;
}

.standfirst {
  font-size: var(--size-lead);
  line-height: 1.55;
  color: var(--steel);
  max-width: 64ch;
}

.prose {
  max-width: 68ch;
  overflow-wrap: anywhere;
}

.prose p + p {
  margin-top: 1.15em;
}

.prose h2 {
  font-size: var(--size-h2);
  font-weight: 600;
  line-height: 1.18;
  border-left: 3px solid var(--brand);
  padding-left: 16px;
  margin-top: 2.25em;
  margin-bottom: 0.75em;
}

.prose h3 {
  font-size: var(--size-h3);
  font-weight: 600;
  margin-top: 1.75em;
  margin-bottom: 0.5em;
}

.prose ul, .prose ol {
  margin-top: 1em;
  margin-bottom: 1em;
  padding-left: 1.4em;
}

.prose li + li {
  margin-top: 0.45em;
}

.mono-label {
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  color: var(--steel);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: inline-block;
}

.mono-meta {
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  color: var(--steel);
  line-height: 1.55;
}

/* Buttons / CTAs (DESIGN.md §5) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  padding: 13px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--brand);
  background-color: var(--brand);
  color: var(--brand-ink);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 120ms ease-out, border-color 120ms ease-out, color 120ms ease-out;
}

.btn:hover {
  background-color: var(--brand-hover);
  border-color: var(--brand-hover);
  color: var(--brand-ink);
}

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

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

/* 1. Sticky Header (DESIGN.md §5.1) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background-color: var(--paper);
  border-bottom: 1px solid transparent;
  transition: border-color 120ms ease-out;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}

.brand-link img {
  height: 32px;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  padding-block: 6px;
  border-bottom: 2px solid transparent;
}

.nav-links a:not(.btn):hover,
.nav-links a:not(.btn)[aria-current="page"] {
  color: var(--brand);
  border-bottom-color: var(--brand);
}

.nav-links a.btn {
  color: var(--brand-ink);
  padding: 10px 18px;
  border-bottom: 1px solid var(--brand);
}

.nav-links a.btn:hover,
.nav-links a.btn[aria-current="page"] {
  background-color: var(--brand-hover);
  border-color: var(--brand-hover);
  color: var(--brand-ink);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  color: var(--ink);
  cursor: pointer;
}

/* 2. Hero Section (DESIGN.md §5.2) */
.hero {
  min-height: calc(100dvh - 72px);
  display: flex;
  align-items: center;
  padding-block: clamp(40px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
}

@keyframes riseFallback {
  to {
    opacity: 1;
    transform: none;
  }
}

.rise {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 240ms ease-out, transform 240ms ease-out;
  animation: riseFallback 1ms 1600ms forwards;
}

.rise.is-visible {
  opacity: 1;
  transform: none;
}

.mono-label,
.mono-meta,
.cap-index,
.person-index,
.spec-list,
.data-table {
  font-variant-numeric: tabular-nums;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  align-items: center;
}

.hero-copy {
  grid-column: span 7;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

.hero-copy .h-display {
  font-size: clamp(2rem, 2.2vw + 0.85rem, 2.85rem);
  line-height: 1.08;
}

.hero-stage {
  grid-column: span 5;
}

.media-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.media-frame video,
.media-frame img,
.media-frame picture {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel);
}

.video-toggle {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel);
  cursor: pointer;
}

.video-toggle:hover {
  border-color: var(--brand);
  color: var(--brand);
}

/* 3. Positioning & Capabilities Rows */
.split-section {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  align-items: start;
}

.split-lead {
  grid-column: span 4;
}

.split-body {
  grid-column: span 8;
}

.cap-list {
  margin-top: 48px;
  border-top: 1px solid var(--line);
}

.cap-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) 280px;
  gap: var(--gutter);
  align-items: center;
  padding-block: 28px;
  border-bottom: 1px solid var(--line);
}

.cap-index {
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  color: var(--brand);
  font-weight: 400;
}

.cap-content h3 {
  margin-bottom: 6px;
}

.cap-content p {
  color: var(--steel);
  max-width: 58ch;
}

.cap-thumb {
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--ink);
}

.cap-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 4. Single Inverted Panel: AuralVerse (DESIGN.md §2 Rule 3) */
.auralverse-panel {
  background-color: var(--ink);
  color: var(--paper);
  padding-block: clamp(64px, 8vw, 108px);
  border-bottom: 1px solid var(--line);
}

.auralverse-panel h2,
.auralverse-panel h3,
.auralverse-panel th {
  color: var(--paper);
}

.auralverse-panel p,
.auralverse-panel td {
  color: var(--paper);
}

.auralverse-panel .mono-label,
.auralverse-panel .mono-meta,
.auralverse-panel caption {
  color: var(--line);
}

.auralverse-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  align-items: start;
}

.auralverse-copy {
  grid-column: span 5;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.auralverse-media {
  grid-column: span 7;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.auralverse-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.auralverse-panel .btn-outline {
  color: var(--paper);
  border-color: var(--steel);
}

.auralverse-panel .btn-outline:hover {
  border-color: var(--paper);
  color: var(--paper);
  background-color: var(--brand);
}

.audio-card {
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.audio-card audio {
  width: 100%;
  height: 36px;
}

.video-Stage-details {
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  padding: 14px 18px;
}

.video-Stage-details summary {
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  color: var(--paper);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.video-Stage-details summary::-webkit-details-marker {
  display: none;
}

.video-Stage-details[open] summary {
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--steel);
}

.iframe-16-9 {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
}

.iframe-16-9 iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* 4b. Watch, listen, read: AuralVerse video, audio and paper, open by default (2026-10-26) */
.media-block {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  align-items: start;
  padding-block: 32px;
  border-top: 1px solid var(--line);
}

.media-block:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.media-block-copy {
  grid-column: span 4;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.media-block-body {
  grid-column: span 8;
  min-width: 0;
}

.media-block-copy h3 {
  overflow-wrap: anywhere;
}

.media-note {
  font-size: var(--size-small);
  color: var(--steel);
}

.media-play {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  display: block;
}

.media-play[hidden] {
  display: none;
}

.media-play img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  transition: opacity 0.2s ease;
}

.media-play:hover img,
.media-play:focus-visible img {
  opacity: 1;
}

.media-play-icon {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 76px;
  height: 76px;
  transform: translate(-50%, -50%);
  background: var(--brand);
  border-radius: 50%;
}

.media-play-icon::after {
  content: "";
  position: absolute;
  left: 31px;
  top: 24px;
  border-style: solid;
  border-width: 14px 0 14px 22px;
  border-color: transparent transparent transparent var(--brand-ink);
}

.media-play-label {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 6px 10px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  border-radius: var(--radius);
}

.audio-player {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background: #FFFFFF;
}

.audio-player audio {
  width: 100%;
}

.paper-reader {
  height: min(80vh, 900px);
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.paper-reader img {
  width: 100%;
  height: auto;
  background: #FFFFFF;
  box-shadow: 0 1px 2px rgba(10, 14, 20, 0.12);
}

@media (max-width: 1024px) {
  .media-block-copy,
  .media-block-body {
    grid-column: span 12;
  }

  .paper-reader {
    height: 75vh;
  }
}

/* 5. Person Card & Leadership Grid (DESIGN.md §5.4) */
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 36px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.person-card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  background-color: var(--paper);
}

.person-card:hover .person-name {
  color: var(--brand);
}

.person-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel);
  margin-bottom: 10px;
}

.person-portrait {
  aspect-ratio: 4 / 5;
  width: 100%;
  background-color: var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 14px;
}

.person-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.person-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 4px;
  transition: color 120ms ease-out;
}

.person-role {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.4;
}

.person-standfirst {
  font-size: var(--size-small);
  color: var(--steel);
  margin-top: 10px;
  line-height: 1.5;
}

/* 6. Article Rows (DESIGN.md §5.5) */
.article-list {
  border-top: 1px solid var(--line);
}

.article-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 220px;
  gap: var(--gutter);
  align-items: start;
  padding-block: 28px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
}

.article-row:hover .article-row-title {
  color: var(--brand);
}

.article-row-meta {
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  color: var(--steel);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.article-row-main {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-row-title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.3vw + 0.7rem, 1.5rem);
  font-weight: 600;
  line-height: 1.22;
  color: var(--ink);
  transition: color 120ms ease-out;
}

.article-row-standfirst {
  font-size: var(--size-small);
  color: var(--steel);
  max-width: 64ch;
  line-height: 1.55;
}

.article-row-thumb {
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--ink);
}

.article-row-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 7. Bio Page Layout (DESIGN.md §5.4) */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  color: var(--steel);
  margin-bottom: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.breadcrumb a {
  color: var(--steel);
  text-decoration: none;
}

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

.bio-layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  align-items: start;
}

.bio-rail {
  grid-column: span 4;
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.bio-main {
  grid-column: span 8;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.spec-list {
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--size-mono);
}

.spec-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-block: 10px;
  border-bottom: 1px solid var(--line);
}

.spec-key {
  color: var(--steel);
}

.spec-val {
  color: var(--ink);
  text-align: right;
}

/* 8. Key Points Block & Focus Block (DESIGN.md §5.6) */
.key-points {
  border-left: 3px solid var(--brand);
  padding: 4px 0 4px 20px;
  margin-block: 8px 16px;
}

.key-points-title {
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  color: var(--steel);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.key-points-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.key-points-list li {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: var(--size-small);
  line-height: 1.5;
  color: var(--ink);
}

.key-points-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

/* 9. Single Article Layout */
.article-header {
  padding-block: clamp(40px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
}

.article-cover {
  margin-top: 32px;
  aspect-ratio: 16 / 9;
  max-height: 520px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--ink);
}

.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  align-items: start;
}

.article-rail {
  grid-column: span 4;
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.article-body {
  grid-column: span 8;
}

.toc-nav {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.toc-list a {
  font-size: var(--size-small);
  color: var(--steel);
  text-decoration: none;
  line-height: 1.4;
  display: block;
}

.toc-list a:hover {
  color: var(--brand);
}

.asset-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background-color: var(--paper);
}

/* Data Tables */
.table-wrap {
  margin-block: 28px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--size-small);
  text-align: left;
}

.data-table caption {
  text-align: left;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  color: var(--steel);
  border-bottom: 1px solid var(--line);
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.data-table th {
  font-family: var(--font-mono);
  font-size: var(--size-mono);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.auralverse-panel .data-table th {
  color: var(--paper);
}

.data-table tr:last-child td {
  border-bottom: 0;
}

/* Prev / Next Pager */
.pager-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gutter);
  padding-top: 28px;
  margin-top: 48px;
  border-top: 1px solid var(--line);
}

.pager-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-decoration: none;
  color: var(--ink);
}

.pager-link:hover .pager-title {
  color: var(--brand);
}

.pager-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
}

/* 10. Contact Form (DESIGN.md §5.7, PLAN.md §6.2) */
.contact-layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  align-items: start;
}

.contact-info {
  grid-column: span 5;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-form-wrap {
  grid-column: span 7;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 40px);
}

.rf {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-group label {
  font-family: var(--font-body);
  font-size: var(--size-small);
  font-weight: 600;
  color: var(--ink);
}

.field-req {
  color: var(--brand);
  margin-left: 2px;
}

.field-group input[type="text"],
.field-group input[type="email"],
.field-group select,
.field-group textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  background-color: var(--paper);
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  padding: 11px 14px;
  line-height: 1.4;
}

.field-group textarea {
  min-height: 140px;
  resize: vertical;
}

.field-group input:focus,
.field-group select:focus,
.field-group textarea:focus {
  border-color: var(--brand);
}

.field-helper {
  font-size: 0.8125rem;
  color: var(--steel);
  line-height: 1.45;
}

.consent-group {
  display: flex;
   align-items: flex-start;
  gap: 12px;
  padding-top: 4px;
}

.consent-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--brand);
  flex-shrink: 0;
}

.consent-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: var(--size-small);
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  display: none;
  padding: 14px 16px;
  border-radius: var(--radius);
  border-left: 3px solid var(--brand);
  background-color: var(--paper);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: var(--size-small);
  color: var(--ink);
}

.form-status.is-visible {
  display: block;
}

/* 11. Footer (DESIGN.md §5.8) */
.site-footer {
  background-color: var(--paper);
  border-top: 1px solid var(--line);
  padding-block: 48px;
  font-size: var(--size-small);
  color: var(--steel);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  align-items: start;
}

.footer-brand {
  grid-column: span 5;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand img {
  height: 28px;
  width: auto;
}

.footer-nav {
  grid-column: span 4;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-legal {
  grid-column: span 3;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  color: var(--ink);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--brand);
}

/* Cookie settings / Accessibility triggers: buttons dressed as footer links */
.footer-linkbtn {
  font: inherit;
  color: var(--ink);
  background: none;
  border: 0;
  padding: 0;
  min-height: 24px;
  cursor: pointer;
  text-align: left;
}

.footer-linkbtn:hover {
  color: var(--brand);
}

/* Consent-gated third-party player (consent.js applyMedia) */
.consent-notice {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
  padding: clamp(16px, 4vw, 40px);
  color: var(--paper);
  font-size: 0.9375rem;
  max-width: 60ch;
}

.consent-notice[hidden] {
  display: none;
}

.footer-bottom {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel);
}

/* Responsive Breakpoints */
.hero-copy,
.hero-stage,
.split-lead,
.split-body,
.auralverse-copy,
.auralverse-media,
.bio-rail,
.bio-main,
.article-rail,
.article-body,
.contact-info,
.contact-form-wrap,
.footer-brand,
.footer-nav,
.footer-legal {
  min-width: 0;
}

@media (max-width: 1024px) {
  .hero-copy,
  .hero-stage,
  .split-lead,
  .split-body,
  .auralverse-copy,
  .auralverse-media,
  .bio-rail,
  .bio-main,
  .article-rail,
  .article-body,
  .contact-info,
  .contact-form-wrap {
    grid-column: span 12;
  }

  .bio-rail,
  .article-rail {
    position: static;
  }

  .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cap-row {
    grid-template-columns: 48px minmax(0, 1fr) 200px;
  }

  .article-row {
    grid-template-columns: 140px minmax(0, 1fr);
  }

  .article-row-thumb {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background-color: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px var(--pad-x);
    gap: 16px;
  }

  .nav-links.is-open {
    display: flex;
  }

  .cap-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .cap-thumb {
    max-width: 100%;
  }

  .article-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .pager-nav {
    grid-template-columns: 1fr;
  }

  .footer-brand,
  .footer-nav,
  .footer-legal {
    grid-column: span 12;
  }
}

@media (max-width: 520px) {
  .team-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .site-header,
  .skip-link,
  #pin-sentinel,
  .video-toggle,
  .pager-nav,
  .contact-form-wrap {
    display: none !important;
  }
  body,
  .auralverse-panel {
    background: #FFFFFF !important;
    color: #000000 !important;
  }
  .rise {
    opacity: 1 !important;
    transform: none !important;
  }
}