@font-face {
  font-family: "Canela";
  src:
    url("fonts/Canela-Regular.woff2") format("woff2"),
    url("fonts/Canela-Regular.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src:
    url("fonts/InterVariable.woff2") format("woff2"),
    url("fonts/Inter-Regular.otf") format("opentype");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src:
    url("fonts/IBMPlexMono-Regular.woff2") format("woff2"),
    url("fonts/IBMPlexMono-Regular.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --font-sans:
    "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-display:
    "Canela", "Iowan Old Style", "Palatino", "Book Antiqua", "Georgia", serif;
  --font-mono:
    "IBM Plex Mono", "SFMono-Regular", Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;

  --color-navy: #142a40;
  --color-ivory: #f8f5ef;
  --color-saffron: #b44800;
  --color-success: #228b22;

  --color-text-primary: var(--color-navy);
  --color-text-secondary: #2d3a4a;

  --content-width: 820px;
  --section-padding: clamp(4rem, 8vh, 7rem) clamp(1.5rem, 10vw, 4rem);
  --nav-offset: 5.5rem;
}

* {
  box-sizing: border-box;
}

/* Prevent CSS display overrides from breaking the hidden attribute */
[hidden] {
  /* biome-ignore lint/complexity/noImportantStyles: intentional — prevents display overrides from breaking the hidden attribute */
  display: none !important;
}

html {
  scroll-padding-top: calc(var(--nav-offset) + env(safe-area-inset-top, 0px));
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--color-ivory);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
}

body.menu-open {
  overflow: hidden;
  overscroll-behavior: contain;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.18'/%3E%3C/svg%3E");
  opacity: 0.14;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 0;
}

main[id],
header[id],
section[id] {
  scroll-margin-top: calc(var(--nav-offset) + env(safe-area-inset-top, 0px));
}

/* ===== Section 1: Hero ===== */

.stage {
  text-align: center;
  padding: 16vh 10vw 10vh;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

@supports (min-height: 100svh) {
  body {
    min-height: 100svh;
  }

  .stage {
    min-height: 100svh;
  }
}

.wordmark {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0;
  font-size: clamp(2rem, 5vw, 4rem);
  text-transform: uppercase;
  color: var(--color-text-primary);
  opacity: 1;
  text-shadow:
    var(--shadow-x, 1.2px) var(--shadow-y, 1.2px) 0 rgba(20, 42, 64, 0.16),
    calc(var(--shadow-x, 1.2px) * -1) calc(var(--shadow-y, 1.2px) * -1) 0
    rgba(255, 255, 255, 0.45);
  position: relative;
  display: inline-block;
  --wordmark-gap: 0.42em;
}

.js .wordmark {
  color: var(--wordmark-color, var(--color-ivory));
  opacity: var(--wordmark-opacity, 0);
}

.wordmark-text {
  display: inline-flex;
  align-items: baseline;
  gap: var(--wordmark-gap);
}

.wordmark .glyph {
  display: inline-block;
  letter-spacing: 0;
}

.wordmark-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 2600ms cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 2;
}

.wordmark.is-overlay-visible .wordmark-overlay {
  opacity: var(--overlay-opacity, 1);
}

.wordmark-overlay-glyph {
  position: absolute;
  top: 0;
  left: 0;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  color: var(--color-saffron);
  white-space: pre;
}

.wordmark-overlay-r {
  position: absolute;
  top: 0;
  left: 0;
}

.tagline {
  margin: 2rem auto 0;
  max-width: var(--content-width);
  font-size: clamp(0.75rem, 1.6vw, 0.95rem);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  opacity: 1;
  text-wrap: balance;
  transition: opacity 1.4s ease;
}

.subline {
  margin: 0.8rem auto 0;
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: clamp(0.85rem, 1.4vw, 1.05rem);
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
  opacity: 1;
  transition: opacity 1.4s ease;
}

.hero-headline {
  margin: 1.2rem auto 0;
  max-width: 640px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.8vw, 1.9rem);
  line-height: 1.3;
  color: var(--color-text-primary);
  text-wrap: balance;
  opacity: 1;
  transition: opacity 1.4s ease;
}

.hero-audience {
  margin: 0.8rem auto 0;
  max-width: 540px;
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: clamp(0.8rem, 1.1vw, 0.9rem);
  line-height: 1.6;
  color: var(--color-text-secondary);
  opacity: 1;
  text-wrap: balance;
  transition: opacity 1.4s ease;
}

.hero-explainer {
  margin: 1.5rem auto 0;
  max-width: 540px;
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: clamp(0.85rem, 1.2vw, 0.95rem);
  line-height: 1.65;
  color: var(--color-text-secondary);
  opacity: 1;
  text-wrap: balance;
  transition: opacity 1.4s ease;
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  opacity: 1;
  transition: opacity 1.4s ease;
}

.cta-secondary {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.15s ease;
}

.cta-secondary:hover {
  color: var(--color-saffron);
}

.hero-scroll-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.35rem 0.25rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.15s ease;
}

.hero-scroll-link:hover {
  color: var(--color-text-primary);
  opacity: 1;
}

/* ===== Content Sections ===== */

.section {
  position: relative;
  z-index: 1;
  padding: var(--section-padding);
}

.section-inner {
  max-width: var(--content-width);
  margin: 0 auto;
}

.section-inner-centered {
  text-align: center;
}

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-saffron);
  margin-bottom: 1.2rem;
}

.section-headline {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  line-height: 1.25;
  color: var(--color-text-primary);
  margin: 0 0 2rem;
  text-wrap: balance;
}

.section-body p {
  font-size: clamp(0.9rem, 1.2vw, 1rem);
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin: 0 0 1.2rem;
}

.section-body p:last-child {
  margin-bottom: 0;
}

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

/* ===== Kernel List (What Bernard Is) ===== */

.kernel-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.kernel-list li {
  font-size: clamp(0.88rem, 1.15vw, 0.98rem);
  line-height: 1.6;
  color: var(--color-text-secondary);
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(20, 42, 64, 0.06);
}

.kernel-list li:last-child {
  border-bottom: none;
}

.kernel-list li strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

/* ===== Section 5: Comparison Table ===== */

.comparison-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-top: 1.5rem;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  line-height: 1.5;
}

.comparison-table th,
.comparison-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(20, 42, 64, 0.1);
  vertical-align: top;
}

.comparison-table th {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-bottom: 1rem;
  border-bottom: 2px solid rgba(20, 42, 64, 0.15);
}

.col-conventional {
  color: var(--color-text-secondary);
}

.col-bernard {
  color: var(--color-navy);
  border-left: 2px solid var(--color-saffron);
}

.comparison-table td:nth-child(3) {
  border-left: 2px solid var(--color-saffron);
  color: var(--color-text-primary);
  font-weight: 400;
}

.comparison-table td:nth-child(2) {
  color: var(--color-text-secondary);
}

.row-label {
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--color-text-primary);
  white-space: nowrap;
}

/* ===== 3-Column Comparison ===== */

.comparison-table-3col td:nth-child(2) {
  color: var(--color-text-secondary);
  border-left: none;
}

.comparison-table-3col td:nth-child(3) {
  color: var(--color-text-secondary);
  border-left: none;
  font-weight: 400;
}

.comparison-table-3col td:nth-child(4) {
  border-left: 2px solid var(--color-saffron);
  color: var(--color-text-primary);
  font-weight: 400;
}

.col-legacy {
  color: var(--color-text-secondary);
}

.col-generic {
  color: var(--color-text-secondary);
}

.proof-record {
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(20, 42, 64, 0.1);
  border-radius: 8px;
  overflow: hidden;
}

.proof-record-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.8rem 1.2rem;
  background: rgba(20, 42, 64, 0.03);
  border-bottom: 1px solid rgba(20, 42, 64, 0.06);
}

.proof-record-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-primary);
}

.proof-record-id {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  min-width: 0;
  text-align: right;
}

.proof-claim-block {
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.proof-claim,
.proof-evidence,
.proof-contradiction,
.proof-confidence {
  padding: 0.6rem 0.8rem;
  border-radius: 4px;
}

.proof-claim {
  background: rgba(20, 42, 64, 0.03);
}

.proof-evidence {
  background: rgba(20, 42, 64, 0.02);
}

.proof-contradiction {
  background: rgba(231, 107, 0, 0.05);
  border-left: 2px solid var(--color-saffron);
}

.proof-confidence {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.proof-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.15rem 0.4rem;
  border-radius: 2px;
  margin-bottom: 0.3rem;
}

.proof-tag-claim {
  background: rgba(20, 42, 64, 0.08);
  color: var(--color-navy);
}

.proof-tag-evidence {
  background: rgba(20, 42, 64, 0.06);
  color: var(--color-text-secondary);
}

.proof-tag-conflict {
  background: rgba(231, 107, 0, 0.12);
  color: var(--color-saffron);
}

.proof-tag-confidence {
  background: rgba(20, 42, 64, 0.06);
  color: var(--color-text-secondary);
}

.proof-claim p,
.proof-evidence p,
.proof-contradiction p {
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
  margin: 0;
}

.proof-claim p {
  color: var(--color-text-primary);
  font-weight: 400;
}

.proof-confidence-score {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-text-primary);
  line-height: 1;
}

.proof-confidence-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-secondary);
}

.proof-views {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.proof-view-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-saffron);
  margin-bottom: 0.6rem;
}

.proof-view p {
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
  margin: 0;
}

.market-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1rem;
  color: var(--color-text-primary);
  margin: 0 0 0.3rem;
}

.markets-note {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Markets Wedge Layout ===== */

.markets-wedge {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.market-featured {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.4);
  border: 1px solid rgba(20, 42, 64, 0.08);
  border-radius: 8px;
}

.market-featured .market-name {
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.market-role {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-saffron);
  margin: 0 0 1rem;
}

.market-featured p:last-child {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0;
}

/* ===== Trust Badge ===== */

.trust-badge {
  margin-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  opacity: 0.7;
}

/* ===== Section 8: Founders ===== */

.founders-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
}

.founder-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.15rem;
  color: var(--color-text-primary);
  margin: 0 0 0.3rem;
}

.founder .market-name {
  font-size: 1.15rem;
}

.founder-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-saffron);
  margin: 0 0 1.5rem;
}

.founder-bio p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin: 0 0 1rem;
}

.founder-bio p:last-child {
  margin-bottom: 0;
}

.founders-statement {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin: 0 0 0;
  font-style: italic;
}

/* ===== Section 9: Contact ===== */

#contact {
  padding-top: clamp(5rem, 10vh, 8rem);
  padding-bottom: clamp(5rem, 10vh, 8rem);
}

.contact-body {
  font-size: clamp(0.9rem, 1.2vw, 1rem);
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin: 0 auto 2rem;
  max-width: 540px;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--color-ivory);
  background: var(--color-saffron);
  text-decoration: none;
  padding: 0.75rem 2rem;
  border-radius: 4px;
  transition:
    background 0.15s ease,
    color 0.15s ease;
}

.cta-button:hover {
  background: var(--color-navy);
}

.cta-button:active {
  transform: scale(0.98);
}

.contact-emails {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
}

.contact-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.25rem 0;
  color: var(--color-saffron);
  text-decoration: none;
  text-align: center;
  word-break: break-word;
}

.contact-link:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.contact-separator {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin: 0 0.3rem;
  color: rgba(20, 42, 64, 0.25);
}

/* ===== Section 10: Footer ===== */

.site-footer {
  position: relative;
  z-index: 1;
  padding: 3rem clamp(1.5rem, 10vw, 4rem);
  border-top: 1px solid rgba(20, 42, 64, 0.08);
}

.footer-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  text-align: center;
}

.footer-link {
  padding: 0.25rem 0.125rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-separator {
  margin: 0 0.5rem;
  color: rgba(20, 42, 64, 0.25);
}

/* ===== Mobile Nav Hamburger ===== */

.nav-hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
}

.nav-hamburger-line {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 1px;
  position: relative;
  transition: background 0.2s ease;
}

.nav-hamburger-line::before,
.nav-hamburger-line::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 1px;
  transition: transform 0.2s ease;
}

.nav-hamburger-line::before {
  top: -6px;
}

.nav-hamburger-line::after {
  top: 6px;
}

.nav-hamburger[aria-expanded="true"] .nav-hamburger-line {
  background: transparent;
}

.nav-hamburger[aria-expanded="true"] .nav-hamburger-line::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-hamburger[aria-expanded="true"] .nav-hamburger-line::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ===== Responsive ===== */

@media (max-width: 720px) {
  .wordmark {
    --wordmark-gap: 0.3em;
  }

  .tagline {
    letter-spacing: 0.18em;
    white-space: normal;
  }

  .markets-wedge {
    grid-template-columns: 1fr;
  }

  .proof-views {
    grid-template-columns: 1fr;
  }

  .comparison-table {
    font-size: 0.8rem;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 0.5rem 0.6rem;
  }

  .row-label {
    white-space: normal;
  }

  /* Mobile nav: hide links, show hamburger */
  .js .nav .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    z-index: 1;
    padding: 0.5rem 0 calc(0.75rem + env(safe-area-inset-bottom, 0px));
    background: rgba(248, 245, 239, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 4px 12px rgba(20, 42, 64, 0.08);
    border-top: 1px solid rgba(20, 42, 64, 0.06);
    max-height: calc(
      100svh -
      var(--nav-offset) -
      env(safe-area-inset-top, 0px)
    );
    overflow-y: auto;
  }

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

  .js .nav .nav-links .nav-link {
    justify-content: flex-start;
    min-height: 44px;
    padding: 0.75rem 2rem;
    font-size: 0.85rem;
  }

  .js .nav .nav-links .nav-cta {
    margin: 0.5rem 2rem;
    text-align: center;
  }

  .js .nav-hamburger {
    display: flex;
  }

  .hero-actions {
    flex-direction: column;
    gap: 1rem;
  }

  .hero-actions .cta-button,
  .hero-actions .hero-scroll-link {
    width: min(100%, 18rem);
  }

  .contact-emails {
    flex-direction: column;
    gap: 0.15rem;
  }

  .contact-separator {
    display: none;
  }

  .founders-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .wordmark,
  .tagline,
  .subline,
  .hero-explainer,
  .hero-actions {
    opacity: 1;
  }

  .wordmark-overlay {
    transition: none;
  }

  .nav {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ===== Navigation ===== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding-top: calc(0.85rem + env(safe-area-inset-top, 0px));
  padding-right: max(1rem, calc(1.25rem + env(safe-area-inset-right, 0px)));
  padding-bottom: 0.85rem;
  padding-left: max(1rem, calc(1.25rem + env(safe-area-inset-left, 0px)));
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  transition:
    background 0.3s ease,
    box-shadow 0.3s ease,
    transform 0.3s ease;
  transform: translateY(-100%);
  opacity: 0;
}

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

.nav.is-scrolled {
  background: rgba(248, 245, 239, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(20, 42, 64, 0.06);
}

/* Dark-hero variant: light nav text before scroll */
.nav.nav-dark .nav-home {
  color: var(--color-ivory);
}

.nav.nav-dark .nav-link:not(.nav-cta) {
  color: rgba(248, 245, 239, 0.7);
}

.nav.nav-dark .nav-link:not(.nav-cta):hover {
  color: var(--color-saffron);
}

.nav.nav-dark .nav-hamburger-line,
.nav.nav-dark .nav-hamburger-line::before,
.nav.nav-dark .nav-hamburger-line::after {
  background: var(--color-ivory);
}

/* Revert to dark text once scrolled backdrop appears */
.nav.nav-dark.is-scrolled .nav-home {
  color: var(--color-text-primary);
}

.nav.nav-dark.is-scrolled .nav-link:not(.nav-cta) {
  color: var(--color-text-secondary);
}

.nav.nav-dark.is-scrolled .nav-link:not(.nav-cta):hover {
  color: var(--color-saffron);
}

.nav.nav-dark.is-scrolled .nav-hamburger-line,
.nav.nav-dark.is-scrolled .nav-hamburger-line::before,
.nav.nav-dark.is-scrolled .nav-hamburger-line::after {
  background: var(--color-text-primary);
}

/* Over-scene variant: dark glass nav when overlaying scene panels */
.nav.nav-over-scene.is-scrolled {
  background: rgba(20, 42, 64, 0.72);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.12);
}

.nav.nav-over-scene .nav-home,
.nav.nav-over-scene.is-scrolled .nav-home,
.nav.nav-scene-visible .nav-home {
  color: var(--color-ivory);
}

.nav.nav-over-scene .nav-link:not(.nav-cta),
.nav.nav-over-scene.is-scrolled .nav-link:not(.nav-cta),
.nav.nav-scene-visible .nav-link:not(.nav-cta) {
  color: rgba(248, 245, 239, 0.7);
}

.nav.nav-over-scene .nav-link:not(.nav-cta):hover,
.nav.nav-over-scene.is-scrolled .nav-link:not(.nav-cta):hover,
.nav.nav-scene-visible .nav-link:not(.nav-cta):hover {
  color: var(--color-ivory);
}

.nav.nav-over-scene .nav-hamburger-line,
.nav.nav-over-scene .nav-hamburger-line::before,
.nav.nav-over-scene .nav-hamburger-line::after,
.nav.nav-over-scene.is-scrolled .nav-hamburger-line,
.nav.nav-over-scene.is-scrolled .nav-hamburger-line::before,
.nav.nav-over-scene.is-scrolled .nav-hamburger-line::after,
.nav.nav-scene-visible .nav-hamburger-line,
.nav.nav-scene-visible .nav-hamburger-line::before,
.nav.nav-scene-visible .nav-hamburger-line::after {
  background: var(--color-ivory);
}

.nav.nav-over-scene .nav-cta,
.nav.nav-scene-visible .nav-cta {
  background: var(--color-saffron);
}

.nav.nav-over-scene.is-menu-open,
.nav.nav-scene-visible.is-menu-open {
  background: rgba(20, 42, 64, 0.95);
}

.nav.is-menu-open {
  background: rgba(248, 245, 239, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(20, 42, 64, 0.06);
}

.nav-home {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.25rem 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  text-transform: uppercase;
  color: var(--color-text-primary);
  text-decoration: none;
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.nav-home:hover {
  color: var(--color-saffron);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-width: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.25rem 0;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--color-saffron);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  color: var(--color-ivory);
  background: var(--color-saffron);
  padding: 0.4rem 1.1rem;
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  transition:
    background 0.15s ease,
    color 0.15s ease;
}

.nav-cta:hover {
  background: var(--color-navy);
  color: var(--color-ivory);
}

/* ===== Download Page (preserved) ===== */

.download-stage {
  text-align: center;
  padding: calc(8rem + env(safe-area-inset-top, 0px)) 2rem 4rem;
  max-width: 860px;
  margin: 0 auto;
}

.download-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 0.5rem;
  color: var(--color-text-primary);
}

.download-version {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--color-saffron);
  margin: 0 0 3rem;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

@media (max-width: 900px) {
  .download-grid {
    grid-template-columns: 1fr;
  }
}

.download-card {
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(20, 42, 64, 0.1);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.download-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(20, 42, 64, 0.08);
}

.download-icon {
  color: var(--color-navy);
  margin-bottom: 1rem;
  opacity: 0.7;
}

.download-platform {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.4rem;
  margin: 0 0 0.25rem;
  color: var(--color-text-primary);
}

.download-requirements {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin: 0 0 1.5rem;
}

.download-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.download-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 400;
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.download-btn-primary {
  background: var(--color-navy);
  color: var(--color-ivory);
}

.download-btn-primary:hover {
  background: var(--color-saffron);
}

.download-btn:not(.download-btn-primary) {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid rgba(20, 42, 64, 0.2);
}

.download-btn:not(.download-btn-primary):hover {
  border-color: var(--color-saffron);
  color: var(--color-saffron);
}

.download-btn-loading {
  opacity: 0.5;
  pointer-events: none;
}

.download-notes {
  text-align: left;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.download-notes h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin: 0 0 1rem;
}

.download-notes details {
  margin-bottom: 0.5rem;
}

.download-notes summary {
  display: list-item;
  min-height: 44px;
  font-weight: 400;
  cursor: pointer;
  padding: 0.5rem 0;
  color: var(--color-text-primary);
}

.download-notes summary:hover {
  color: var(--color-saffron);
}

.download-notes p {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0.5rem 0 1rem 1rem;
}

.download-notes code {
  font-family: var(--font-mono);
  font-size: 0.8em;
  background: rgba(20, 42, 64, 0.06);
  padding: 0.15em 0.4em;
  border-radius: 3px;
}

.download-footer {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.download-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.25rem 0;
  color: var(--color-saffron);
  text-decoration: none;
}

.download-footer a:hover {
  text-decoration: underline;
}