:root {
  --color-black: #050505;
  --color-ink: #0b0a08;
  --color-panel: #11100d;
  --color-panel-soft: #171510;
  --color-cream: #f0e9dd;
  --color-cream-muted: #cfc5b4;
  --color-cream-soft: #978c7a;
  --color-gold: #e2b348;
  --color-gold-soft: #f0cf77;
  --color-gold-muted: #9c7a2e;
  --color-border: rgba(240, 233, 221, 0.16);
  --color-border-gold: rgba(226, 179, 72, 0.32);
  --shadow-soft: 0 24px 70px rgba(0, 0, 0, 0.34);
  --font-heading: Georgia, "Times New Roman", serif;
  --font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --container: 1120px;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  overflow-x: clip;
  background:
    linear-gradient(180deg, #050505 0%, #0b0a08 54%, #050505 100%);
  color: var(--color-cream);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

.site-page {
  position: relative;
  z-index: 1;
  isolation: isolate;
  overflow-x: hidden;
  overflow-x: clip;
  min-height: 100svh;
}

.viewport-emblem-background {
  position: fixed;
  left: 50%;
  top: 52%;
  z-index: 0;
  width: clamp(42rem, 72vw, 78rem);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  background-image: url("/assets/brand/exist-intrinsic-logo.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  opacity: 0.095;
  pointer-events: none;
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

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

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--color-gold-soft);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 4px;
}

::selection {
  background: rgba(226, 179, 72, 0.34);
  color: var(--color-cream);
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 20;
  transform: translateY(-150%);
  background: var(--color-gold);
  color: var(--color-black);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(100% - 2rem, var(--container));
  margin: 0 auto;
}

.narrow {
  width: min(100% - 2rem, 820px);
}

.section {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.section-panel {
  background:
    linear-gradient(180deg, rgba(240, 233, 221, 0.035), rgba(240, 233, 221, 0.015)),
    var(--color-panel);
  border-block: 1px solid var(--color-border);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--color-border);
  background: rgba(5, 5, 5, 0.88);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 0.85rem 0;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.84rem;
  min-width: fit-content;
  color: var(--color-cream);
  font-weight: 700;
  letter-spacing: 0;
  text-decoration: none;
}

.brand-link img {
  width: 2.75rem;
  height: 2.75rem;
  object-fit: contain;
}

.brand-link img {
  width: 2.65rem;
  height: 2.65rem;
}

.site-nav,
.footer-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem 1rem;
}

.site-nav a,
.footer-links a {
  color: var(--color-cream-muted);
  font-size: 0.92rem;
  text-decoration: none;
}

.site-nav a:hover,
.footer-links a:hover {
  color: var(--color-gold-soft);
}

.hero {
  min-height: calc(100svh - 74px);
  display: grid;
  align-items: center;
  padding-top: clamp(2.5rem, 5vw, 5rem);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(340px, 0.9fr) minmax(0, 0.95fr);
  grid-template-areas: "portrait copy";
  align-items: center;
  gap: clamp(2.25rem, 5vw, 4.75rem);
}

.hero-copy {
  grid-area: copy;
  position: relative;
  max-width: 650px;
}

.section-kicker {
  margin: 0 0 0.95rem;
  color: var(--color-gold-soft);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--color-cream);
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  max-width: 11ch;
  margin-bottom: 1.2rem;
  font-size: clamp(3.15rem, 7.55vw, 6.45rem);
}

h2 {
  max-width: 15ch;
  margin-bottom: 1.25rem;
  font-size: clamp(2.2rem, 5vw, 4.15rem);
}

h3 {
  margin-bottom: 0.85rem;
  font-size: clamp(1.45rem, 2.4vw, 2rem);
}

.hero-subhead {
  max-width: 610px;
  margin-bottom: 1.65rem;
  color: var(--color-cream-muted);
  font-size: clamp(1.08rem, 2.1vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.78rem 1.1rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--color-gold);
  color: #15100a;
  border-color: var(--color-gold);
}

.button-primary:hover {
  background: var(--color-gold-soft);
  color: #15100a;
}

.button-secondary {
  background: rgba(240, 233, 221, 0.06);
  color: var(--color-cream);
  border-color: var(--color-border-gold);
}

.button-secondary:hover {
  background: rgba(226, 179, 72, 0.12);
  border-color: rgba(226, 179, 72, 0.62);
}

.hero-note {
  margin: 0;
  color: var(--color-cream-muted);
  font-weight: 700;
}

.portrait-wrap {
  position: relative;
  grid-area: portrait;
  justify-self: start;
  width: min(100%, 510px);
  border: 1px solid var(--color-border-gold);
  border-radius: var(--radius);
  background: var(--color-panel-soft);
  box-shadow: var(--shadow-soft);
  overflow: visible;
}

.portrait-wrap picture,
.portrait-wrap picture img {
  border-radius: calc(var(--radius) - 1px);
}

.portrait-wrap picture img {
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 1501;
  object-fit: cover;
}

.narrow p,
.founder-note p,
.join-grid p,
.contact-inner p {
  color: var(--color-cream-muted);
  font-size: 1.08rem;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
}

.section-heading h2,
.comparison-heading h2 {
  margin-bottom: 0;
}

.thesis-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.thesis-card,
.channel-card,
.subscribe-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: rgba(23, 21, 16, 0.72);
}

.thesis-card {
  min-height: 260px;
  padding: clamp(1.2rem, 2.5vw, 1.65rem);
}

.card-number {
  display: block;
  margin-bottom: 2.5rem;
  color: var(--color-gold-soft);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.thesis-card p,
.comparison-card p,
.comparison-footer,
.channel-card small,
.form-note,
.footer-note,
.footer-brand span {
  color: var(--color-cream-muted);
}

.comparison-section {
  background:
    linear-gradient(135deg, rgba(156, 122, 46, 0.18), transparent 38%),
    #090806;
  border-block: 1px solid var(--color-border-gold);
}

.comparison-heading {
  margin-bottom: 2rem;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.comparison-card {
  min-height: 260px;
  padding: clamp(1.35rem, 3.2vw, 2.25rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.comparison-card h3 {
  color: var(--color-gold-soft);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.comparison-card p {
  max-width: 13ch;
  margin: 0;
  color: var(--color-cream);
  font-family: var(--font-heading);
  font-size: clamp(2.15rem, 4.7vw, 4.6rem);
  line-height: 1.02;
}

.old-model {
  background: rgba(10, 9, 8, 0.78);
}

.new-model {
  border-color: var(--color-border-gold);
  background: linear-gradient(180deg, rgba(226, 179, 72, 0.1), rgba(23, 21, 16, 0.78));
}

.new-model p {
  max-width: 15ch;
}

.comparison-footer {
  max-width: 860px;
  margin: 1.5rem 0 0;
  font-size: 1.08rem;
}

.start-grid,
.join-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.quote-line {
  color: var(--color-cream);
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.6vw, 3rem);
  line-height: 1.16;
}

.signature {
  margin-bottom: 0;
  color: var(--color-gold-soft);
  font-weight: 800;
}

.channel-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
}

.channel-card {
  display: flex;
  min-height: 138px;
  flex-direction: column;
  justify-content: space-between;
  padding: 1rem;
  color: var(--color-cream);
  text-decoration: none;
}

.channel-card:hover {
  border-color: var(--color-border-gold);
  background: rgba(226, 179, 72, 0.08);
  color: var(--color-cream);
}

.channel-card span {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  line-height: 1.1;
}

.channel-card small {
  overflow-wrap: anywhere;
}

.join-section {
  background:
    linear-gradient(180deg, rgba(240, 233, 221, 0.035), rgba(240, 233, 221, 0)),
    var(--color-panel);
  border-block: 1px solid var(--color-border);
}

.subscribe-panel {
  padding: clamp(1.2rem, 3vw, 1.75rem);
}

.subscribe-label,
.subscribe-fallback {
  margin: 0;
  color: var(--color-cream-muted);
  font-size: 0.92rem;
  text-align: center;
}

.subscribe-label {
  margin-bottom: 1rem;
  color: var(--color-gold-soft);
  font-weight: 800;
}

.substack-embed-slot {
  width: min(100%, 32rem);
  margin-inline: auto;
}

.substack-embed-slot iframe {
  display: block;
  width: 100%;
  max-width: 480px;
  min-height: 320px;
  margin-inline: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

.subscribe-fallback {
  margin-top: 1rem;
}

.subscribe-fallback a {
  color: var(--color-cream);
  font-weight: 800;
}

.contact-inner {
  max-width: 760px;
  text-align: center;
}

.contact-inner h2 {
  max-width: 13ch;
  margin-inline: auto;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: #030303;
  padding: 2rem 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.25rem 2rem;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand strong {
  line-height: 1.2;
}

.footer-brand span,
.footer-note,
.footer-links a {
  font-size: 0.9rem;
}

.footer-note {
  grid-column: 1 / -1;
  margin: 0;
}

@media (min-width: 1400px) {
  .viewport-emblem-background {
    opacity: 0.1;
  }
}

@media (max-width: 1100px) {
  .header-inner {
    align-items: center;
    flex-direction: column;
    justify-content: center;
    gap: 1rem;
    text-align: center;
  }

  .brand-link {
    justify-content: center;
  }

  .site-nav {
    width: 100%;
    justify-content: center;
  }

  .viewport-emblem-background {
    top: 50%;
    width: clamp(36rem, 92vw, 64rem);
    opacity: 0.085;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid,
  .start-grid,
  .join-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    grid-template-areas:
      "copy"
      "portrait";
    justify-items: center;
    text-align: center;
  }

  .hero-copy {
    width: min(100%, 47.5rem);
    max-width: 47.5rem;
    margin-inline: auto;
    text-align: center;
  }

  .hero-copy h1,
  .hero-subhead,
  .hero-note {
    margin-inline: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .portrait-wrap {
    justify-self: center;
    width: min(100%, 430px);
    margin-inline: auto;
  }

  .section-heading {
    display: block;
    max-width: 48rem;
    margin-inline: auto;
    text-align: center;
  }

  .section-kicker,
  .section-heading h2,
  .comparison-heading,
  .comparison-heading h2,
  .narrow,
  .narrow h2,
  .start-grid,
  .start-grid h2,
  .join-grid,
  .join-grid h2,
  .contact-inner {
    margin-inline: auto;
    text-align: center;
  }

  .narrow p,
  .founder-note,
  .founder-note p,
  .join-grid p,
  .contact-inner p {
    max-width: 42rem;
    margin-inline: auto;
  }

  .quote-line {
    max-width: 46rem;
    margin-inline: auto;
  }

  .thesis-grid,
  .comparison-grid {
    grid-template-columns: 1fr;
    max-width: 56rem;
    margin-inline: auto;
  }

  .thesis-card,
  .comparison-card {
    min-height: 0;
    text-align: center;
  }

  .card-number {
    margin-bottom: 1.5rem;
  }

  .thesis-card p {
    max-width: 42rem;
    margin-inline: auto;
  }

  .comparison-card {
    display: grid;
    justify-items: center;
  }

  .comparison-card p,
  .comparison-footer {
    margin-inline: auto;
    text-align: center;
  }

  .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 46rem;
    margin-inline: auto;
  }

  .channel-card {
    align-items: center;
    text-align: center;
  }

  .join-grid {
    max-width: 48rem;
  }

  .subscribe-panel {
    width: min(100%, 34rem);
    margin-inline: auto;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .footer-brand {
    justify-content: center;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .hero-copy {
    width: min(100%, 38rem);
    max-width: 38rem;
    margin-inline: auto;
  }

  .portrait-wrap {
    width: min(100%, 430px);
  }
}

@media (max-width: 560px) {
  .container,
  .narrow {
    width: min(100% - 1.25rem, var(--container));
  }

  .section {
    padding: 3.5rem 0;
  }

  .hero {
    padding-top: 2rem;
  }

  .header-inner {
    gap: 0.7rem;
    padding: 0.65rem 0;
  }

  .brand-link img {
    width: 2.45rem;
    height: 2.45rem;
  }

  .brand-link span {
    font-size: 0.96rem;
  }

  .site-nav {
    gap: 0.32rem 0.82rem;
  }

  .site-nav a {
    font-size: 0.88rem;
  }

  h1 {
    font-size: clamp(2.8rem, 13vw, 3.65rem);
  }

  h2 {
    max-width: 12ch;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-actions {
    max-width: 24rem;
    margin-inline: auto;
  }

  .viewport-emblem-background {
    top: 48%;
    width: clamp(30rem, 120vw, 48rem);
    opacity: 0.075;
  }

  .comparison-card {
    min-height: 220px;
  }

  .comparison-card p {
    font-size: clamp(2.25rem, 14vw, 3.65rem);
  }

  .channel-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .substack-embed-slot {
    width: 100%;
  }

  .substack-embed-slot iframe {
    width: 100%;
    max-width: 100%;
    min-height: 320px;
  }
}

@media (max-width: 380px) {
  .viewport-emblem-background {
    top: 48%;
    width: 32rem;
    opacity: 0.065;
  }
}

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