/* ==========================================================================
   Design tokens
   ========================================================================== */

:root {
  --bg: #0a0b09;
  --bg-elevated: #14160f;
  --bg-elevated-2: #1c1f16;
  --border: rgba(255, 255, 255, 0.11);
  --border-soft: rgba(255, 255, 255, 0.06);
  --text-primary: #f4f5ef;
  --text-secondary: #b7bcac;
  --text-tertiary: #7d8272;

  --accent: #dbeaac;
  --accent-strong: #c7de85;
  --accent-soft: rgba(219, 234, 172, 0.14);
  --accent-soft-2: rgba(219, 234, 172, 0.28);
  --accent-text-on: #0f1208;

  --font-display: "Newsreader", "Iowan Old Style", "Georgia", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --col-max: 700px;
  --col-wide: 900px;
  --bleed-max: 1180px;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.75rem;
  --space-4: 2.75rem;
  --space-5: 4.5rem;
  --space-6: 7rem;

  --radius: 10px;
  --radius-lg: 16px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Reset
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

/* ==========================================================================
   Layout helpers
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--col-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container--wide {
  max-width: var(--col-wide);
}

.container--bleed {
  max-width: var(--bleed-max);
}

.section {
  padding: var(--space-6) 0;
}

.section--tight {
  padding: var(--space-5) 0;
}

.section-border {
  border-top: 1px solid var(--border-soft);
}

@media (max-width: 640px) {
  .section {
    padding: var(--space-5) 0;
  }
  .section--tight {
    padding: var(--space-4) 0;
  }
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: var(--space-2);
}

.hero h1,
h1.display {
  font-size: clamp(2.3rem, 5.4vw, 3.8rem);
  line-height: 1.08;
  max-width: 16ch;
}

h2.section-title {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  line-height: 1.16;
  max-width: 18ch;
  margin-bottom: var(--space-3);
}

h3.card-title {
  font-size: 1.15rem;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--text-primary);
}

.lede {
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 42ch;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1.15em;
}

p.body-text {
  font-size: 1.06rem;
  line-height: 1.7;
}

.text-primary {
  color: var(--text-primary);
}

strong {
  color: var(--text-primary);
  font-weight: 600;
}

.section-kicker {
  color: var(--text-tertiary);
  font-size: 0.95rem;
  max-width: 46ch;
  margin-bottom: var(--space-4);
}

.link-accent {
  color: var(--accent);
  border-bottom: 1px solid var(--accent-soft-2);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.link-accent:hover {
  border-color: var(--accent);
}

/* ==========================================================================
   Scroll progress
   ========================================================================== */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--accent);
  z-index: 200;
  transition: width 0.12s linear;
}

/* ==========================================================================
   Nav
   ========================================================================== */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 11, 9, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}

.site-nav__inner {
  max-width: var(--bleed-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-nav__brand {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: baseline;
  gap: 0.45em;
  white-space: nowrap;
}

.site-nav__brand span {
  color: var(--text-tertiary);
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-nav__links a {
  position: relative;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 6px 0;
  transition: color 0.2s var(--ease);
}

.site-nav__links a:hover {
  color: var(--text-primary);
}

.site-nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: var(--accent);
  transition: width 0.25s var(--ease);
}

.site-nav__links a.is-active {
  color: var(--text-primary);
}

.site-nav__links a.is-active::after {
  width: 100%;
}

.site-nav__toggle {
  display: none;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.site-nav__toggle span {
  display: block;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 2px;
}

@media (max-width: 720px) {
  .site-nav__toggle {
    display: flex;
  }
  .site-nav__links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: var(--space-2) 1.5rem var(--space-3);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
  }
  .site-nav__links.is-open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
  }
  .site-nav__links a {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-soft);
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding: 9.5rem 0 var(--space-5);
  max-width: var(--col-wide);
  margin: 0 auto;
}

.hero__meta {
  display: flex;
  align-items: center;
  gap: 0.6em;
  color: var(--text-tertiary);
  font-size: 0.85rem;
  margin-top: var(--space-3);
}

.hero__meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-tertiary);
}

.hero__lede {
  margin-top: var(--space-3);
}

@media (max-width: 640px) {
  .hero {
    padding: 7rem 0 var(--space-4);
  }
}

/* ==========================================================================
   Pull quotes
   ========================================================================== */

.pull-quote {
  max-width: 640px;
  margin: 0 auto;
  padding: var(--space-2) 0;
  position: relative;
}

.pull-quote::before {
  content: "\201C";
  font-family: var(--font-display);
  font-size: 3.4rem;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: 0.1em;
  opacity: 0.85;
}

.pull-quote p {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  line-height: 1.34;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.pull-quote cite {
  font-style: normal;
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

/* ==========================================================================
   Footnotes
   ========================================================================== */

.fn-ref {
  font-size: 0.7em;
  color: var(--accent);
  vertical-align: super;
  padding: 0 0.12em;
  cursor: pointer;
}

.footnotes {
  border-top: 1px solid var(--border);
  padding-top: var(--space-3);
  margin-top: var(--space-4);
}

.footnotes h2 {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--text-tertiary);
  margin-bottom: var(--space-2);
}

.footnotes ol {
  counter-reset: fn;
  display: flex;
  flex-direction: column;
  gap: 0.9em;
}

.footnotes li {
  counter-increment: fn;
  font-size: 0.88rem;
  color: var(--text-tertiary);
  padding-left: 1.6em;
  position: relative;
  line-height: 1.55;
}

.footnotes li::before {
  content: counter(fn) ".";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.footnotes li span {
  color: var(--text-secondary);
}

/* ==========================================================================
   Scroll reveal
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
  will-change: opacity, transform;
}

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

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal-stagger.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 0.2s; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 0.3s; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 0.4s; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 0.5s; }

/* ==========================================================================
   Word-level rise-in (headlines, pull quotes)
   ========================================================================== */

.word-reveal .word {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
  padding-bottom: 0.14em;
  margin-bottom: -0.14em;
}

.word-reveal .word-inner {
  display: inline-block;
  transform: translateY(120%);
  transition: transform 0.85s var(--ease);
}

.word-reveal.is-visible .word-inner {
  transform: translateY(0);
}

/* ==========================================================================
   Scroll cue
   ========================================================================== */

.scroll-cue {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-top: var(--space-5);
  opacity: 0.55;
  transition: opacity 0.6s var(--ease);
}

.scroll-cue__line {
  width: 1px;
  height: 36px;
  position: relative;
  overflow: hidden;
  background: var(--border);
}

.scroll-cue__line::after {
  content: "";
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, transparent, var(--accent));
  animation: scrollCueMove 2.4s ease-in-out infinite;
}

@keyframes scrollCueMove {
  0% { top: -100%; }
  55% { top: 100%; }
  100% { top: 100%; }
}

.scroll-cue span {
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

body.has-scrolled .scroll-cue {
  opacity: 0;
  pointer-events: none;
}

/* ==========================================================================
   Timeline (scroll-driven)
   ========================================================================== */

.timeline {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 0 var(--space-4);
  max-width: var(--col-wide);
  margin: 0 auto;
}

.timeline__spine {
  position: relative;
  grid-column: 1;
}

.timeline__spine-track {
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  background: var(--border);
}

.timeline__spine-fill {
  position: absolute;
  top: 6px;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  background: var(--accent);
  height: 0%;
  transition: height 0.2s linear;
}

.timeline__stages {
  grid-column: 2;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.timeline__stage {
  position: relative;
  padding: 0.2rem 0;
  opacity: 0.38;
  transition: opacity 0.6s var(--ease);
}

.timeline__stage.is-active {
  opacity: 1;
}

.timeline__dot {
  position: absolute;
  left: calc(-1 * var(--space-4) - 15px);
  top: 0.35rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border);
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.timeline__stage.is-active .timeline__dot {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.timeline__stage-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  transition: color 0.5s var(--ease);
  margin-bottom: 0.4em;
}

.timeline__stage.is-active .timeline__stage-label {
  color: var(--accent);
}

.timeline__stage h3 {
  font-size: 1.3rem;
  margin-bottom: 0.35em;
}

.timeline__stage p {
  max-width: 46ch;
}

@media (max-width: 640px) {
  .timeline {
    grid-template-columns: 20px 1fr;
    gap: 0 var(--space-2);
  }
  .timeline__dot {
    left: calc(-1 * var(--space-2) - 15px);
  }
}

/* ==========================================================================
   Tabs
   ========================================================================== */

.tabs {
  max-width: var(--col-wide);
  margin: 0 auto;
}

.tabs__list {
  display: flex;
  gap: 0.4rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-4);
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs__list::-webkit-scrollbar {
  display: none;
}

.tabs__btn {
  padding: 0.85rem 1.1rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-tertiary);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.tabs__btn:hover {
  color: var(--text-primary);
}

.tabs__btn.is-active {
  color: var(--accent);
  border-color: var(--accent);
}

.tabs__panel {
  display: none;
}

.tabs__panel.is-active {
  display: block;
  animation: fadeUp 0.4s var(--ease);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tabs__panel-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-4);
  align-items: start;
}

@media (max-width: 780px) {
  .tabs__panel-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
}

.tradeoff-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.tradeoff-card h4 {
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-2);
  font-weight: 600;
}

.tradeoff-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0;
  border-top: 1px solid var(--border-soft);
}

.tradeoff-row:first-of-type {
  border-top: none;
}

.tradeoff-row dt {
  font-size: 0.86rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
  width: 40%;
}

.tradeoff-row dd {
  font-size: 0.9rem;
  color: var(--text-primary);
  text-align: right;
}

/* ==========================================================================
   Accordion (misconceptions, appendices)
   ========================================================================== */

.accordion {
  max-width: var(--col-wide);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.accordion__item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  overflow: hidden;
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: left;
  padding: 1.1rem 1.4rem;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text-primary);
}

.accordion__trigger .plus {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  position: relative;
}

.accordion__trigger .plus::before,
.accordion__trigger .plus::after {
  content: "";
  position: absolute;
  background: var(--accent);
  transition: transform 0.3s var(--ease);
  top: 50%;
  left: 50%;
}

.accordion__trigger .plus::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.accordion__trigger .plus::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
}

.accordion__item.is-open .plus::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease);
}

.accordion__panel-inner {
  padding: 0 1.4rem 1.4rem;
}

.accordion__panel-inner p:last-child {
  margin-bottom: 0;
}

/* small appendix variant */
.accordion--plain .accordion__item {
  background: transparent;
  border: none;
  border-top: 1px solid var(--border);
  border-radius: 0;
}

.accordion--plain .accordion__trigger {
  padding: 1rem 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.accordion--plain .accordion__panel-inner {
  padding: 0 0 1.4rem;
}

/* ==========================================================================
   Dial interactive
   ========================================================================== */

.dial-explainer {
  max-width: var(--col-wide);
  margin: 0 auto;
}

.dial-panel {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.dial-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 10px;
  margin-bottom: var(--space-4);
}

.dial {
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  position: relative;
  background: var(--bg);
  transition: border-color 0.4s var(--ease), box-shadow 0.4s var(--ease), background 0.4s var(--ease);
}

.dial::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2px;
  height: 32%;
  background: var(--text-tertiary);
  transform-origin: bottom center;
  transform: translate(-50%, -100%) rotate(calc(var(--dial-rot, 0deg)));
  transition: transform 0.5s var(--ease), background 0.4s var(--ease);
  border-radius: 2px;
}

.dial.is-live {
  border-color: var(--accent-soft-2);
  box-shadow: 0 0 12px var(--accent-soft);
}

.dial.is-live::after {
  background: var(--accent);
}

.dial-slider-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.dial-slider-row input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 3px;
  background: var(--border);
  border-radius: 4px;
  outline: none;
}

.dial-slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 0 5px var(--accent-soft);
  transition: box-shadow 0.2s var(--ease);
}

.dial-slider-row input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

.dial-slider-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  width: 130px;
  flex-shrink: 0;
}

.dial-slider-label.end {
  text-align: right;
}

.dial-copy {
  position: relative;
  margin-top: var(--space-4);
  min-height: 6.5em;
}

.dial-copy p {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  transition: opacity 0.45s var(--ease);
  font-size: 1.02rem;
  color: var(--text-primary);
}

.dial-copy p.state-frozen {
  opacity: var(--frozen-opacity, 1);
}

.dial-copy p.state-live {
  opacity: var(--live-opacity, 0);
}

@media (max-width: 640px) {
  .dial-grid {
    grid-template-columns: repeat(8, 1fr);
    gap: 7px;
  }
  .dial-slider-row {
    flex-wrap: wrap;
  }
  .dial-slider-label {
    width: auto;
    max-width: 100%;
    font-size: 0.68rem;
    order: 2;
  }
  .dial-slider-label.end {
    text-align: left;
    order: 3;
  }
  .dial-slider-row input[type="range"] {
    order: 1;
    flex-basis: 100%;
    margin-bottom: 0.6rem;
  }
}

/* ==========================================================================
   Company / market cards grid
   ========================================================================== */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: var(--bleed-max);
  margin: 0 auto;
}

@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.company-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.company-card.is-featured {
  border-color: var(--accent-soft-2);
  background: linear-gradient(160deg, var(--accent-soft), var(--bg-elevated) 55%);
}

.company-card__head {
  width: 100%;
  text-align: left;
  padding: 1.15rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.company-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.6rem;
}

.company-card__tag {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.25em 0.6em;
  border-radius: 20px;
  white-space: nowrap;
}

.company-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4em 0.9em;
  font-size: 0.78rem;
  color: var(--text-tertiary);
}

.company-card__chevron {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  position: relative;
  margin-top: 0.3em;
}

.company-card__chevron::before {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--text-tertiary);
  border-bottom: 1.5px solid var(--text-tertiary);
  top: 2px;
  left: 4px;
  transform: rotate(45deg);
  transition: transform 0.3s var(--ease);
}

.company-card.is-open .company-card__chevron::before {
  transform: rotate(225deg);
}

.company-card__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease);
}

.company-card__body-inner {
  padding: 0 1.3rem 1.3rem;
  border-top: 1px solid var(--border-soft);
  padding-top: 1rem;
}

.company-card__body-inner p {
  font-size: 0.92rem;
}

.company-card__example {
  font-size: 0.86rem;
  color: var(--text-tertiary);
  padding-left: 0.8em;
  border-left: 2px solid var(--accent-soft-2);
  margin-top: 0.8em;
}

.company-card__founders {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  margin-top: 0.8em;
}

.group-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  max-width: var(--bleed-max);
  margin: 0 auto var(--space-3);
  gap: 1rem;
  flex-wrap: wrap;
}

.group-heading h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
}

.group-heading p {
  font-size: 0.85rem;
  margin: 0;
  color: var(--text-tertiary);
  max-width: 46ch;
}

.company-group {
  margin-bottom: var(--space-4);
}

.company-group:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Filter toggle (market map)
   ========================================================================== */

.filter-toggle {
  display: inline-flex;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 3px;
  margin: 0 auto var(--space-4);
}

.filter-toggle__btn {
  padding: 0.5rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-tertiary);
  border-radius: 24px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.filter-toggle__btn.is-active {
  color: var(--accent-text-on);
  background: var(--accent);
}

.filter-center {
  display: flex;
  justify-content: center;
}

/* ==========================================================================
   Charts / data viz
   ========================================================================== */

.viz-block {
  max-width: var(--col-wide);
  margin: 0 auto;
}

.bar-compare {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.bar-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: center;
  gap: 1rem;
}

.bar-row__label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

.bar-row__track {
  position: relative;
  height: 34px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.bar-row__fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-soft-2), var(--accent));
  width: 0%;
  transition: width 1.1s var(--ease);
  border-radius: 6px 0 0 6px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 0.6em;
}

.bar-row__fill span {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-text-on);
}

@media (max-width: 600px) {
  .bar-row {
    grid-template-columns: 90px 1fr;
  }
}

.viz-caption {
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border-soft);
  font-size: 0.85rem;
  color: var(--text-tertiary);
  max-width: 58ch;
}

.viz-caption strong {
  color: var(--text-secondary);
  font-weight: 600;
}

/* cost-flow diagram */

.cost-flow {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

@media (max-width: 640px) {
  .cost-flow {
    grid-template-columns: 1fr;
  }
}

.cost-flow__card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.cost-flow__card h4 {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.cost-flow__bar {
  display: flex;
  height: 40px;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.cost-flow__seg {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  width: 0%;
  transition: width 1.1s var(--ease);
  overflow: hidden;
  white-space: nowrap;
}

.cost-flow__bar .cost-flow__seg:last-child {
  transition-delay: 0.25s;
}

.cost-flow__seg--train {
  background: var(--accent);
  color: var(--accent-text-on);
}

.cost-flow__seg--infer {
  background: var(--bg-elevated-2);
  color: var(--text-tertiary);
}

.cost-flow__card--memory .cost-flow__seg--train {
  background: var(--bg-elevated-2);
  color: var(--text-tertiary);
}

.cost-flow__card--memory .cost-flow__seg--infer {
  background: var(--accent);
  color: var(--accent-text-on);
}

/* ==========================================================================
   Stack diagram (interface vs engine)
   ========================================================================== */

.stack-diagram {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stack-layer {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  background: var(--bg-elevated);
  text-align: center;
}

.stack-layer__label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 0.3em;
}

.stack-layer__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.stack-layer--governance {
  display: flex;
  gap: 6px;
  padding: 0;
  background: none;
  border: none;
}

.stack-layer--governance .stack-chip {
  flex: 1;
  border: 1px solid var(--accent-soft-2);
  background: var(--accent-soft);
  border-radius: var(--radius);
  padding: 0.7rem 0.3rem;
  text-align: center;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--accent);
}

.stack-layer--engine {
  border-color: var(--accent-soft-2);
}

.stack-layer--engine .stack-layer__title {
  color: var(--accent);
}

.stack-connector {
  display: flex;
  justify-content: center;
}

.stack-connector::before {
  content: "";
  width: 1px;
  height: 20px;
  background: var(--border);
}

@media (max-width: 560px) {
  .stack-layer--governance {
    flex-wrap: wrap;
  }
  .stack-layer--governance .stack-chip {
    flex: 1 1 45%;
  }
}

/* ==========================================================================
   Collision diagram (multi-agent)
   ========================================================================== */

.collision {
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
  position: relative;
  aspect-ratio: 640 / 260;
}

.collision__hub {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  width: 148px;
  height: 68px;
  border: 1.5px solid var(--accent-soft-2);
  background: var(--accent-soft);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--accent);
  text-align: center;
  z-index: 2;
  padding: 0 0.5em;
  opacity: 0;
  transition: opacity 0.6s var(--ease) 0.7s, transform 0.6s var(--ease) 0.7s;
}

.collision.is-active .collision__hub {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.collision__agent {
  position: absolute;
  width: 78px;
  height: 44px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.collision.is-active .collision__agent {
  opacity: 1;
  transform: translateY(0);
}

.collision__agent--a { top: 4%; left: 6%; transition-delay: 0.05s; }
.collision__agent--b { top: 4%; right: 6%; transition-delay: 0.2s; }
.collision__agent--c { bottom: 4%; left: 6%; transition-delay: 0.35s; }
.collision__agent--d { bottom: 4%; right: 6%; transition-delay: 0.5s; }

.collision__line {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 41%;
  height: 1.5px;
  background: var(--border);
  transform-origin: left center;
  opacity: 0;
  transition: opacity 0.5s var(--ease) 0.9s;
}

.collision.is-active .collision__line {
  opacity: 1;
}

.collision__line--a { transform: rotate(-158deg); }
.collision__line--b { transform: rotate(-22deg); }
.collision__line--c { transform: rotate(158deg); }
.collision__line--d { transform: rotate(22deg); }

.collision__line::after {
  content: "";
  position: absolute;
  top: -2px;
  left: 0%;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
}

.collision.is-active .collision__line::after {
  animation: pulseAlong 2.4s var(--ease) infinite;
}

.collision.is-active .collision__line--b::after { animation-delay: 0.3s; }
.collision.is-active .collision__line--c::after { animation-delay: 0.6s; }
.collision.is-active .collision__line--d::after { animation-delay: 0.9s; }

@keyframes pulseAlong {
  0% { left: 0%; opacity: 0; }
  8% { opacity: 1; }
  85% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

@media (max-width: 560px) {
  .collision {
    aspect-ratio: 640 / 340;
  }
  .collision__agent {
    width: 60px;
    height: 34px;
    font-size: 0.6rem;
  }
  .collision__hub {
    width: 120px;
    height: 54px;
    font-size: 0.66rem;
  }
}

/* ==========================================================================
   Misc content components
   ========================================================================== */

.callout {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: var(--space-3);
  max-width: var(--col-wide);
  margin: 0 auto;
}

.callout h4 {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 0.6em;
}

.callout ul {
  display: flex;
  flex-direction: column;
  gap: 0.6em;
}

.callout li {
  font-size: 0.94rem;
  color: var(--text-secondary);
  padding-left: 1.1em;
  position: relative;
}

.callout li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.what-if-panel {
  max-width: var(--col-wide);
  margin: 0 auto;
  background: radial-gradient(ellipse at top left, var(--accent-soft), transparent 60%), var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.what-if-panel h2 {
  margin-bottom: var(--space-2);
}

.question-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: var(--col-wide);
  margin: 0 auto;
}

.question-list li {
  padding: 1.1rem 0;
  border-top: 1px solid var(--border-soft);
  font-size: 1.02rem;
  color: var(--text-primary);
  font-family: var(--font-display);
  line-height: 1.4;
}

.question-list li:first-child {
  border-top: none;
}

/* vertical / market map cards for hover reveal */

.map-card {
  position: relative;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 1.3rem;
  cursor: pointer;
  transition: border-color 0.25s var(--ease);
}

.map-card:hover,
.map-card.is-open {
  border-color: var(--accent-soft-2);
}

.map-card__label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 0.5em;
}

.map-card__title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--text-primary);
  margin-bottom: 0.5em;
}

.map-card__detail {
  font-size: 0.86rem;
  color: var(--text-secondary);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--ease), opacity 0.3s var(--ease), margin-top 0.3s var(--ease);
  opacity: 0;
}

.map-card:hover .map-card__detail,
.map-card.is-open .map-card__detail {
  max-height: 260px;
  opacity: 1;
  margin-top: 0.6em;
}

/* ==========================================================================
   Thesis link cards (landing page)
   ========================================================================== */

.thesis-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  max-width: var(--bleed-max);
  margin: 0 auto;
}

@media (max-width: 760px) {
  .thesis-links {
    grid-template-columns: 1fr;
  }
}

.thesis-card {
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  background: var(--bg-elevated);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), background 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}

.thesis-card:hover {
  border-color: var(--accent-soft-2);
  transform: translateY(-3px);
}

.thesis-card__num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: var(--space-2);
  display: block;
}

.thesis-card h2 {
  font-size: 1.55rem;
  margin-bottom: 0.6em;
  line-height: 1.2;
}

.thesis-card p {
  font-size: 0.98rem;
}

.thesis-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  margin-top: var(--space-2);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
}

.thesis-card__cta .arrow {
  transition: transform 0.25s var(--ease);
}

.thesis-card:hover .thesis-card__cta .arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-5) 0 var(--space-4);
}

.site-footer__inner {
  max-width: var(--bleed-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.site-footer__inner:not(:has(.site-footer__attrib)) {
  justify-content: flex-end;
}

.site-footer__attrib p {
  font-size: 0.88rem;
  color: var(--text-tertiary);
  max-width: 40ch;
}

.site-footer__nav {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.site-footer__nav a {
  font-size: 0.86rem;
  color: var(--text-secondary);
}

.site-footer__nav a:hover {
  color: var(--accent);
}

.site-footer__legal {
  width: 100%;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-soft);
  font-size: 0.78rem;
  color: var(--text-tertiary);
}

/* ==========================================================================
   Home page and Pong
   ========================================================================== */

.pong-page {
  min-height: 100vh;
}

.pong-page main {
  min-height: calc(100vh - 72px);
}

.home-hero {
  min-height: 82vh;
  display: grid;
  place-items: center;
  padding: 7rem 1.5rem 3rem;
  text-align: center;
}

.home-hero__inner {
  display: grid;
  justify-items: center;
  gap: var(--space-4);
  width: 100%;
}

.home-hero h1 {
  white-space: nowrap;
  font-size: clamp(1.05rem, 5vw, 4rem);
  line-height: 1.05;
}

.home-scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text-tertiary);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.home-scroll-cue span {
  color: var(--accent);
}

.home-writing {
  padding: var(--space-6) 0;
}

.home-writing .section-title {
  max-width: none;
}

.home-writing .thesis-links {
  margin-top: var(--space-4);
}

.pong-shell {
  width: min(100%, 1040px);
  margin: 0 auto;
  padding: var(--space-6) 1.5rem;
}

.pong-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: 1.4rem;
}

.pong-header .eyebrow {
  margin-bottom: 0.35rem;
}

.pong-header h2 {
  font-size: clamp(1.8rem, 4.4vw, 3.2rem);
  line-height: 1.05;
  max-width: 16ch;
}

.pong-score {
  display: flex;
  align-items: end;
  gap: 1rem;
  flex-shrink: 0;
}

.pong-score div {
  display: grid;
  justify-items: center;
}

.pong-score span {
  color: var(--text-tertiary);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.pong-score strong {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 500;
  line-height: 0.9;
}

.pong-score .pong-score__divider {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
}

.pong-game {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 20% 50%, rgba(219, 234, 172, 0.07), transparent 38%),
    #0e100c;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
}

#pong-canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  touch-action: none;
  outline: none;
}

#pong-canvas:focus-visible {
  box-shadow: inset 0 0 0 2px var(--accent);
}

.pong-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 1rem;
  background: rgba(10, 11, 9, 0.58);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.pong-overlay.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.pong-overlay p {
  margin: 0;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 2rem);
}

.pong-button {
  padding: 0.75rem 1.35rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-text-on);
  font-size: 0.86rem;
  font-weight: 600;
  transition: transform 0.2s var(--ease), background 0.2s ease;
}

.pong-button:hover {
  background: var(--accent-strong);
  transform: translateY(-2px);
}

.pong-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}

.pong-controls p {
  margin: 0;
  color: var(--text-tertiary);
  font-size: 0.8rem;
}

.pong-key {
  display: inline-grid;
  place-items: center;
  width: 1.55rem;
  height: 1.55rem;
  margin-right: 0.3rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text-secondary);
  line-height: 1;
}

.pong-controls button {
  color: var(--text-tertiary);
  font-size: 0.8rem;
  border-bottom: 1px solid transparent;
}

.pong-controls button:hover {
  color: var(--accent);
  border-color: var(--accent-soft-2);
}

@media (max-width: 640px) {
  .home-hero {
    min-height: 72vh;
    padding: 6rem 0.75rem 2rem;
  }

  .home-hero h1 {
    font-size: clamp(1rem, 5.1vw, 1.35rem);
  }

  .home-writing {
    padding: var(--space-5) 0;
  }

  .pong-shell {
    padding: var(--space-5) 1rem;
  }

  .pong-header {
    align-items: center;
  }

  .pong-header h2 {
    max-width: 12ch;
  }

  .pong-game {
    border-radius: 12px;
  }

  .pong-controls {
    align-items: flex-start;
  }
}

/* ==========================================================================
   Utility spacing
   ========================================================================== */

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  max-width: var(--col-wide);
  margin: 0 auto;
}

@media (max-width: 640px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mb-0 { margin-bottom: 0; }
.text-center { text-align: center; }
.center-col { max-width: var(--col-max); margin: 0 auto; }