/* ============================================================
   Direction α — Constellation
   Dark-led, scroll-tinted, cinematic
   ============================================================ */

/* tokens.css, fonts.css, reset.css are loaded separately by the layout. */

/* ------------------------------------------------------------
   Direction-specific tokens
   ------------------------------------------------------------ */

:root {
  --tint-color: 124, 58, 255;     /* violet, default — RGB triplet */
  --tint-opacity: 0.06;
  --hairline: rgba(255, 255, 255, 0.08);
  --hairline-strong: rgba(255, 255, 255, 0.16);
  --glass: rgba(2, 6, 23, 0.7);

  --product-xeonote: 59, 118, 255;
  --product-ethersight: 245, 158, 11;
  --product-etheritsm: 251, 113, 133;

  --pairkeep-forest: #174136;
  --pairkeep-cream: #F6F0E6;
  --pairkeep-copper: #C96E34;
  --pairkeep-sage: #66756C;
}

/* Force dark default for direction α; allow light override via toggle */
html { color-scheme: dark; }

html:not([data-theme="light"]) {
  background: var(--color-neutral-950);
  color: var(--color-neutral-200);
}

html:not([data-theme="light"]) body {
  background: var(--color-neutral-950);
  color: var(--color-neutral-200);
}

/* Apply dark semantic overrides when html has no data-theme set */
html:not([data-theme="light"]) {
  --bg-page:    var(--color-neutral-950);
  --bg-surface: var(--color-neutral-900);
  --bg-muted:   #0B1220;
  --bg-subtle:  var(--color-neutral-800);
  --text-primary:   var(--color-neutral-50);
  --text-heading:   #FFFFFF;
  --text-body:      var(--color-neutral-300);
  --text-secondary: var(--color-neutral-400);
  --text-muted:     var(--color-neutral-500);
  --text-link:      var(--color-secondary-300);
  --border-default: rgba(255, 255, 255, 0.08);
  --border-strong:  rgba(255, 255, 255, 0.16);
  --border-subtle:  rgba(255, 255, 255, 0.04);
  --interactive-primary:       var(--color-primary-500);
  --interactive-primary-hover: var(--color-primary-400);
}

body {
  position: relative;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ------------------------------------------------------------
   Scroll-driven accent tint overlay
   Fixed full-bleed radial gradient driven by --tint-color
   ------------------------------------------------------------ */

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 70% 60% at 30% 20%, rgba(var(--tint-color), var(--tint-opacity)), transparent 70%),
    radial-gradient(ellipse 60% 50% at 80% 70%, rgba(var(--tint-color), calc(var(--tint-opacity) * 0.7)), transparent 70%);
  transition: background var(--duration-slow) var(--ease-out-cubic);
}

/* Faint grid backdrop — subtle technical texture */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(103, 232, 249, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(103, 232, 249, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, black 30%, transparent 80%);
}

body[data-tint="xeonote"]    { --tint-color: var(--product-xeonote); --tint-opacity: 0.08; }
body[data-tint="ethersight"] { --tint-color: var(--product-ethersight); --tint-opacity: 0.08; }
body[data-tint="etheritsm"]  { --tint-color: var(--product-etheritsm); --tint-opacity: 0.08; }
body[data-tint="violet"]     { --tint-color: 124, 58, 255; --tint-opacity: 0.06; }

main, header.nav, .statusbar, footer.foot {
  position: relative;
  z-index: 1;
}

/* ------------------------------------------------------------
   Status bar
   ------------------------------------------------------------ */

.statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-2) var(--space-6);
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--color-neutral-400);
}

.statusbar__left,
.statusbar__right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.statusbar__dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-accent-500);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.55);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.55; transform: scale(0.85); }
}

.statusbar a { color: inherit; transition: color var(--duration-fast); }
.statusbar a:hover { color: var(--color-secondary-300); }

@media (max-width: 720px) {
  .statusbar { font-size: 11px; padding: var(--space-2) var(--space-4); }
  .statusbar__right { display: none; }
}

/* ------------------------------------------------------------
   Sticky nav
   ------------------------------------------------------------ */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: var(--glass);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-base) var(--ease-out-cubic),
              background-color var(--duration-base);
}

.nav.is-scrolled {
  border-bottom-color: var(--hairline);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-neutral-0);
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  font-size: var(--text-md);
  letter-spacing: -0.01em;
}

.nav__brand img { width: 28px; height: auto; }

.nav__links {
  display: none;
  gap: var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-neutral-300);
}

@media (min-width: 880px) {
  .nav__links { display: flex; }
}

.nav__links a {
  position: relative;
  padding: var(--space-2) 0;
  transition: color var(--duration-fast);
}

.nav__links a:hover { color: var(--color-secondary-300); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Theme toggle */
.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  color: var(--color-neutral-400);
  border: 1px solid var(--hairline);
  transition: color var(--duration-fast), border-color var(--duration-fast);
}

.theme-toggle:hover { color: var(--color-secondary-300); border-color: var(--hairline-strong); }
.theme-toggle svg { width: 16px; height: 16px; }

/* ------------------------------------------------------------
   Buttons
   ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-lg);
  transition: background-color var(--duration-fast),
              color var(--duration-fast),
              border-color var(--duration-fast),
              transform var(--duration-fast);
  cursor: pointer;
  letter-spacing: -0.005em;
}

.btn--primary {
  background: var(--color-primary-500);
  color: white;
  box-shadow: 0 4px 16px rgba(124, 58, 255, 0.35);
}

.btn--primary:hover { background: var(--color-primary-400); transform: translateY(-1px); }

.btn--ghost {
  background: transparent;
  color: var(--color-neutral-200);
  border: 1px solid var(--hairline-strong);
}

.btn--ghost:hover { color: white; border-color: var(--color-primary-400); }

.btn--cta {
  background: var(--color-accent-500);
  color: var(--color-neutral-950);
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.25);
}

.btn--cta:hover { background: var(--color-accent-400); transform: translateY(-1px); }

/* ------------------------------------------------------------
   Layout
   ------------------------------------------------------------ */

.section {
  padding: var(--space-24) var(--space-6);
}

.section--tight { padding: var(--space-16) var(--space-6); }

.wrap {
  max-width: 1180px;
  margin: 0 auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-secondary-400);
  margin-bottom: var(--space-4);
}

.eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}

/* ------------------------------------------------------------
   Hero
   ------------------------------------------------------------ */

.hero {
  position: relative;
  padding: var(--space-20) var(--space-6) var(--space-32);
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__wrap {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
  align-items: center;
}

@media (min-width: 1080px) {
  .hero__wrap { grid-template-columns: 1.1fr 0.9fr; gap: var(--space-12); }
}

.hero__copy { position: relative; z-index: 2; }

.hero__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-extrabold);
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--color-neutral-0);
  margin-bottom: var(--space-6);
}

.hero__title .verb {
  background: var(--gradient-brand-vivid);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lede {
  font-size: var(--text-lg);
  color: var(--color-neutral-300);
  max-width: 56ch;
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-10);
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.trust-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-neutral-300);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-full);
}

.trust-chip::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: var(--radius-full);
  background: var(--color-secondary-400);
  opacity: 0.7;
}

/* ------------------------------------------------------------
   Constellation artefact
   ------------------------------------------------------------ */

.constellation {
  position: relative;
  aspect-ratio: 1;
  max-width: 520px;
  margin: 0 auto;
  width: 100%;
}

.constellation__mesh {
  position: absolute;
  inset: -10%;
  z-index: 0;
  background:
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(124, 58, 255, 0.4), transparent 70%),
    radial-gradient(ellipse 40% 40% at 70% 30%, rgba(34, 211, 238, 0.25), transparent 65%),
    radial-gradient(ellipse 40% 40% at 30% 70%, rgba(124, 58, 255, 0.18), transparent 65%);
  filter: blur(40px);
  border-radius: 50%;
}

.constellation__svg {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
}

.constellation__edge {
  stroke: rgba(103, 232, 249, 0.3);
  stroke-width: 0.6;
  fill: none;
  stroke-dasharray: 2 4;
}

.constellation__edge-static {
  stroke: rgba(103, 232, 249, 0.15);
  stroke-width: 0.6;
  fill: none;
}

.constellation__orbit {
  transform-origin: 50% 50%;
  animation: rotate-slow 38s linear infinite;
}

.constellation__node {
  transform-origin: center;
  animation: breathe 5.2s ease-in-out infinite;
}

.constellation__node--xeonote    { animation-delay: 0s; }
.constellation__node--ethersight { animation-delay: 1.2s; }
.constellation__node--etheritsm  { animation-delay: 2.4s; }
.constellation__node--pairkeep   { animation-delay: 3.6s; }

.constellation__center {
  transform-origin: 50% 50%;
  animation: breathe-soft 7s ease-in-out infinite;
}

@keyframes rotate-slow { to { transform: rotate(360deg); } }
@keyframes breathe { 0%, 100% { opacity: 0.85; } 50% { opacity: 1; } }
@keyframes breathe-soft { 0%, 100% { opacity: 0.95; } 50% { opacity: 1; transform: scale(1.02); } }

@media (prefers-reduced-motion: reduce) {
  .constellation__orbit,
  .constellation__node,
  .constellation__center,
  .statusbar__dot {
    animation: none !important;
  }
}

.constellation__label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  fill: var(--color-neutral-400);
}

/* ------------------------------------------------------------
   Manifesto band (light)
   ------------------------------------------------------------ */

.manifesto-band {
  background: var(--color-neutral-50);
  color: var(--color-neutral-900);
  padding: var(--space-24) var(--space-6);
  border-top: 1px solid var(--color-primary-300);
  border-bottom: 1px solid var(--color-primary-300);
  text-align: center;
  position: relative;
  z-index: 1;
}

.manifesto-band__quote {
  font-family: var(--font-heading);
  font-weight: var(--weight-semibold);
  font-size: clamp(1.5rem, 3.6vw, 2.5rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  max-width: 28ch;
  margin: 0 auto;
  color: var(--color-neutral-900);
}

.manifesto-band__quote em {
  font-style: normal;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.manifesto-band__attr {
  margin-top: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-neutral-500);
}

/* ------------------------------------------------------------
   Product showcase sections
   ------------------------------------------------------------ */

.product-section {
  padding: var(--space-24) var(--space-6);
}

.product-section__wrap {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 960px) {
  .product-section__wrap { grid-template-columns: 1fr 1fr; gap: var(--space-16); }
  .product-section--reverse .product-section__wrap > .product-section__copy { order: 2; }
}

.product-section__mark {
  width: 56px;
  height: auto;
  margin-bottom: var(--space-5);
}

.product-section__name {
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--color-neutral-0);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.product-section__rule {
  width: 56px;
  height: 2px;
  background: var(--accent, var(--color-primary-500));
  margin-bottom: var(--space-5);
}

.product-section__lede {
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
  color: var(--color-neutral-300);
  margin-bottom: var(--space-4);
  max-width: 48ch;
}

.product-section__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.product-section__meta .trust-chip::before { background: var(--accent, var(--color-primary-400)); }

.product-section__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-secondary-300);
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  transition: color var(--duration-fast);
}

.product-section__link:hover { color: var(--color-secondary-200); }
.product-section__link::after { content: '→'; transition: transform var(--duration-fast); }
.product-section__link:hover::after { transform: translateX(4px); }

/* Product artefact box */
.product-artefact {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--hairline);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
    rgba(15, 23, 42, 0.6);
  position: relative;
  overflow: hidden;
  padding: var(--space-8);
  display: grid;
  place-items: center;
}

.product-artefact::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(var(--accent-rgb, 124, 58, 255), 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--accent-rgb, 124, 58, 255), 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black 30%, transparent 80%);
}

.product-artefact > * { position: relative; }

/* Per-product accent vars */
.product-section[data-product="xeonote"]    { --accent: #3B76FF; --accent-rgb: 59, 118, 255; }
.product-section[data-product="ethersight"] { --accent: #F59E0B; --accent-rgb: 245, 158, 11; }
.product-section[data-product="etheritsm"]  { --accent: #FB7185; --accent-rgb: 251, 113, 133; }

/* ------------------------------------------------------------
   Sectional break (— Also from Ether-X)
   ------------------------------------------------------------ */

.also-from {
  padding: var(--space-16) var(--space-6) var(--space-8);
  text-align: center;
  border-top: 1px solid var(--hairline);
  position: relative;
}

.also-from__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-neutral-400);
}

/* ------------------------------------------------------------
   PairKeep section — full-bleed, distinct brand treatment
   ------------------------------------------------------------ */

.pairkeep {
  background: var(--pairkeep-cream);
  color: var(--pairkeep-forest);
  padding: var(--space-24) var(--space-6);
  position: relative;
  z-index: 2;  /* sit above the body tint */
}

.pairkeep__wrap {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: center;
}

@media (min-width: 880px) {
  .pairkeep__wrap { grid-template-columns: 1fr 1fr; gap: var(--space-16); }
}

.pairkeep__mark {
  width: 80px;
  height: auto;
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-6);
}

.pairkeep__eyebrow {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--pairkeep-sage);
  margin-bottom: var(--space-3);
}

.pairkeep__name {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-weight: 700;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--pairkeep-forest);
  margin-bottom: var(--space-5);
}

.pairkeep__rule {
  width: 56px;
  height: 2px;
  background: var(--pairkeep-copper);
  margin-bottom: var(--space-5);
}

.pairkeep__lede {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: var(--text-lg);
  line-height: 1.55;
  color: var(--pairkeep-forest);
  max-width: 44ch;
  margin-bottom: var(--space-6);
}

.pairkeep__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: 'Georgia', 'Times New Roman', serif;
  font-style: italic;
  font-size: var(--text-md);
  color: var(--pairkeep-copper);
  transition: color var(--duration-fast);
  border-bottom: 1px solid var(--pairkeep-copper);
  padding-bottom: 2px;
}

.pairkeep__link::after { content: '→'; transition: transform var(--duration-fast); }
.pairkeep__link:hover::after { transform: translateX(4px); }
.pairkeep__link:hover { color: var(--pairkeep-forest); border-color: var(--pairkeep-forest); }

.pairkeep__visual {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-2xl);
  background:
    radial-gradient(circle at 30% 30%, rgba(201, 110, 52, 0.18), transparent 60%),
    var(--pairkeep-forest);
  display: grid;
  place-items: center;
  padding: var(--space-12);
  position: relative;
  overflow: hidden;
}

.pairkeep__visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(246, 240, 230, 0.06) 1px, transparent 1px);
  background-size: 100% 32px;
}

.pairkeep__visual img {
  position: relative;
  width: 60%;
  max-width: 220px;
  height: auto;
  filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.3));
}

/* ------------------------------------------------------------
   Three pillars
   ------------------------------------------------------------ */

.pillars {
  padding: var(--space-24) var(--space-6);
  border-top: 1px solid var(--hairline);
}

.pillars__wrap {
  max-width: 1180px;
  margin: 0 auto;
}

.pillars__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}

@media (min-width: 880px) {
  .pillars__grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-12); }
}

.pillar { padding-top: var(--space-6); border-top: 1px solid var(--color-secondary-700); }

.pillar__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-secondary-400);
  margin-bottom: var(--space-3);
}

.pillar__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  font-size: var(--text-2xl);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-neutral-0);
  margin-bottom: var(--space-4);
}

.pillar__body {
  color: var(--color-neutral-300);
  line-height: var(--leading-relaxed);
}

/* ------------------------------------------------------------
   Closer
   ------------------------------------------------------------ */

.closer {
  padding: var(--space-32) var(--space-6);
  text-align: center;
  border-top: 1px solid var(--hairline);
  position: relative;
}

.closer__wrap { max-width: 720px; margin: 0 auto; }

.closer__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-extrabold);
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-neutral-0);
  margin-bottom: var(--space-5);
}

.closer__title em {
  font-style: normal;
  background: var(--gradient-brand-vivid);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.closer__lede {
  font-size: var(--text-lg);
  color: var(--color-neutral-300);
  margin-bottom: var(--space-8);
  max-width: 48ch;
  margin-inline: auto;
}

/* ------------------------------------------------------------
   Footer
   ------------------------------------------------------------ */

.foot {
  padding: var(--space-16) var(--space-6) var(--space-8);
  border-top: 1px solid var(--color-secondary-700);
  background: rgba(2, 6, 23, 0.6);
}

.foot__wrap {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

@media (min-width: 880px) {
  .foot__wrap { grid-template-columns: 1.4fr repeat(4, 1fr); gap: var(--space-8); }
}

.foot__brand { display: flex; flex-direction: column; gap: var(--space-3); max-width: 28ch; }

.foot__brand-mark {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-neutral-0);
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  font-size: var(--text-md);
}

.foot__brand-mark img { width: 28px; height: auto; }

.foot__tagline {
  font-size: var(--text-sm);
  color: var(--color-neutral-400);
  line-height: var(--leading-relaxed);
}

.foot__col h4 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-neutral-500);
  margin-bottom: var(--space-4);
  font-weight: var(--weight-medium);
}

.foot__col ul { display: flex; flex-direction: column; gap: var(--space-2); }
.foot__col a {
  font-size: var(--text-sm);
  color: var(--color-neutral-300);
  transition: color var(--duration-fast);
}
.foot__col a:hover { color: var(--color-secondary-300); }

.foot__legal {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--hairline);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--color-neutral-500);
}

.foot__legal__build {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ------------------------------------------------------------
   Generic page hero (for products / principles pages)
   ------------------------------------------------------------ */

.page-hero {
  padding: var(--space-24) var(--space-6) var(--space-12);
  position: relative;
}

.page-hero__wrap {
  max-width: 880px;
  margin: 0 auto;
  text-align: left;
}

.page-hero__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-extrabold);
  font-size: clamp(2.25rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--color-neutral-0);
  margin-bottom: var(--space-5);
}

.page-hero__title em {
  font-style: normal;
  background: var(--gradient-brand-vivid);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-hero__lede {
  font-size: var(--text-lg);
  color: var(--color-neutral-300);
  max-width: 56ch;
  line-height: var(--leading-relaxed);
}

/* ------------------------------------------------------------
   Long-form catalogue (products page)
   ------------------------------------------------------------ */

.catalogue {
  padding: var(--space-12) var(--space-6) var(--space-24);
}

.catalogue__wrap {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-24);
}

.catalogue__entry {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  padding-top: var(--space-12);
  border-top: 1px solid var(--hairline);
}

@media (min-width: 880px) {
  .catalogue__entry { grid-template-columns: 0.4fr 0.6fr; gap: var(--space-12); }
}

.catalogue__head { position: sticky; top: 100px; align-self: start; }

.catalogue__name {
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  font-size: var(--text-3xl);
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--color-neutral-0);
  margin-bottom: var(--space-3);
}

.catalogue__rule {
  width: 56px;
  height: 2px;
  background: var(--accent, var(--color-primary-500));
  margin-bottom: var(--space-5);
}

.catalogue__body p {
  color: var(--color-neutral-300);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
  max-width: 60ch;
}

.catalogue__body p:last-of-type { margin-bottom: var(--space-6); }

/* ------------------------------------------------------------
   Principles page (light by default)
   ------------------------------------------------------------ */

.principles-page {
  background: var(--color-neutral-50);
  color: var(--color-neutral-900);
  min-height: 100vh;
}

.principles-page::before,
.principles-page::after { display: none; }

.principles-page .nav {
  background: rgba(248, 250, 252, 0.85);
  border-bottom-color: var(--color-neutral-200);
}

.principles-page .nav__brand,
.principles-page .nav__links a { color: var(--color-neutral-900); }
.principles-page .nav__links a:hover { color: var(--color-primary-700); }

.principles-page .statusbar { color: var(--color-neutral-500); border-bottom-color: var(--color-neutral-200); }

.principles__hero {
  padding: var(--space-32) var(--space-6) var(--space-16);
  text-align: left;
  border-bottom: 1px solid var(--color-neutral-200);
}

.principles__hero-wrap { max-width: 880px; margin: 0 auto; }

.principles__hero-title {
  font-family: var(--font-heading);
  font-weight: var(--weight-extrabold);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--color-neutral-900);
  margin-bottom: var(--space-6);
}

.principles__hero-title em {
  font-style: normal;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.principles__hero-lede {
  font-size: var(--text-xl);
  color: var(--color-neutral-600);
  max-width: 60ch;
  line-height: var(--leading-relaxed);
}

.principles__body {
  padding: var(--space-16) var(--space-6) var(--space-32);
}

.principles__body-wrap {
  max-width: 720px;
  margin: 0 auto;
}

.principles__section { margin-bottom: var(--space-20); }

.principles__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-primary-700);
  margin-bottom: var(--space-3);
}

.principles__h {
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  font-size: var(--text-3xl);
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--color-neutral-900);
  margin-bottom: var(--space-5);
}

.principles__body p {
  font-size: var(--text-md);
  color: var(--color-neutral-700);
  line-height: var(--leading-loose);
  margin-bottom: var(--space-4);
}

.principles__pull {
  border-left: 2px solid var(--color-primary-500);
  padding: var(--space-3) 0 var(--space-3) var(--space-5);
  margin: var(--space-8) 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-semibold);
  font-size: var(--text-xl);
  line-height: 1.4;
  letter-spacing: -0.015em;
  color: var(--color-neutral-900);
}

.principles__list {
  list-style: none;
  padding: 0;
  margin: var(--space-6) 0;
}

.principles__list li {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-neutral-200);
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  color: var(--color-neutral-700);
  line-height: var(--leading-relaxed);
}

.principles__list li::before {
  content: '·';
  color: var(--color-primary-700);
  font-weight: bold;
}

.principles-page .foot {
  background: var(--color-neutral-100);
  border-top-color: var(--color-neutral-200);
  color: var(--color-neutral-600);
}

.principles-page .foot__col h4 { color: var(--color-neutral-500); }
.principles-page .foot__col a { color: var(--color-neutral-700); }
.principles-page .foot__col a:hover { color: var(--color-primary-700); }
.principles-page .foot__brand-mark { color: var(--color-neutral-900); }
.principles-page .foot__tagline { color: var(--color-neutral-600); }
.principles-page .foot__legal { border-top-color: var(--color-neutral-200); color: var(--color-neutral-500); }

/* ============================================================
   Post-launch fixes (2026-05-08)
   ============================================================ */

/* ------------------------------------------------------------
   Mobile nav — hamburger toggle that drops the link list as a
   stacked menu under the sticky nav. Desktop (>=880px) keeps
   the inline horizontal nav as before.
   ------------------------------------------------------------ */

.nav__hamburger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 1px solid var(--hairline, rgba(255, 255, 255, 0.12));
  color: var(--color-neutral-200);
  background: transparent;
  cursor: pointer;
  transition: color var(--duration-fast), border-color var(--duration-fast);
}

.nav__hamburger:hover {
  color: var(--color-secondary-300);
  border-color: var(--color-secondary-300);
}

.nav__hamburger svg {
  width: 18px;
  height: 18px;
}

.nav.is-open .nav__hamburger-bar--top { transform: translate(0, 5px) rotate(45deg); transform-origin: 50% 50%; }
.nav.is-open .nav__hamburger-bar--mid { opacity: 0; }
.nav.is-open .nav__hamburger-bar--bot { transform: translate(0, -5px) rotate(-45deg); transform-origin: 50% 50%; }
.nav__hamburger-bar { transition: transform var(--duration-fast) var(--ease-out-cubic), opacity var(--duration-fast); }

@media (min-width: 880px) {
  .nav__hamburger { display: none; }
}

/* On mobile, links collapse into a panel below the sticky nav.
   Since the nav is `position: sticky` and has its own backdrop blur,
   we drop the panel as an absolutely-positioned dropdown so it
   doesn't push the rest of the page. */
@media (max-width: 879px) {
  .nav { flex-wrap: wrap; }
  .nav__brand { order: 1; flex: 1 1 auto; }
  .nav__hamburger { order: 2; }
  .nav__actions { order: 3; margin-left: var(--space-3); }
  .nav__links {
    order: 4;
    width: 100%;
    flex-direction: column;
    gap: 0;
    padding: var(--space-4) 0 var(--space-2);
    border-top: 1px solid var(--hairline, rgba(255, 255, 255, 0.08));
    margin-top: var(--space-3);
    /* Collapsed by default; visible when .is-open */
    display: none;
  }
  .nav.is-open .nav__links { display: flex; }
  .nav__links a {
    padding: var(--space-3) 0;
    font-size: var(--text-md);
    border-bottom: 1px solid var(--hairline-subtle, rgba(255, 255, 255, 0.04));
  }
  /* On the light-themed pages (principles, about, legal/*) the hairline
     should be a quiet neutral, not white-translucent. */
  .principles-page .nav__links { border-top-color: var(--color-neutral-200); }
  .principles-page .nav__links a { border-bottom-color: var(--color-neutral-200); }
  .principles-page .nav__hamburger {
    color: var(--color-neutral-700);
    border-color: var(--color-neutral-300);
  }
  .principles-page .nav__hamburger:hover {
    color: var(--color-primary-700);
    border-color: var(--color-primary-500);
  }
}

/* ------------------------------------------------------------
   RichText (lexical-rendered) lists — restore bullets that the
   global reset stripped. Scoped to lexical body containers only.
   ------------------------------------------------------------ */

.principles__body .RichText ul,
.principles__body-wrap > div ul,
section.principles__body ul {
  list-style: disc;
  padding-left: var(--space-6);
  margin: var(--space-4) 0;
}

.principles__body .RichText li,
.principles__body-wrap > div li,
section.principles__body li {
  padding: var(--space-2) 0;
  list-style: disc;
  display: list-item;
  border: 0;
}

.principles__body .RichText li::before,
.principles__body-wrap > div li::before,
section.principles__body li::before {
  content: none;
}

.principles-page .principles__body ul,
.principles-page .principles__body-wrap ul {
  color: var(--color-neutral-700);
}

/* ------------------------------------------------------------
   Light-themed pages — make sure the body fully overrides the
   dark default. styles.css originally had `html:not([data-theme="light"])`
   which doesn't apply when the page sets data-theme="light", but
   neither did anything else fix the body bg. Now belt-and-braces.
   ------------------------------------------------------------ */

html[data-theme="light"] {
  background: var(--color-neutral-50);
  color-scheme: light;
}

html[data-theme="light"] body {
  background: var(--color-neutral-50);
  color: var(--color-neutral-900);
  --bg-page: var(--color-neutral-50);
  --bg-surface: var(--color-neutral-0);
  --text-primary: var(--color-neutral-900);
  --text-heading: var(--color-neutral-900);
  --text-body: var(--color-neutral-600);
  --text-muted: var(--color-neutral-400);
  --border-default: var(--color-neutral-200);
  --hairline: var(--color-neutral-200);
}

/* The fixed scroll-tint overlay (body::before) has subtle violet
   gradient ambience — fine on dark, distracting on light. Suppress. */
html[data-theme="light"] body::before,
html[data-theme="light"] body::after {
  display: none;
}

/* The status bar and nav need to flip for light pages, not stay
   dark-glass. */
html[data-theme="light"] .statusbar {
  background: var(--color-neutral-100);
  color: var(--color-neutral-500);
  border-bottom-color: var(--color-neutral-200);
}

html[data-theme="light"] .nav {
  background: rgba(248, 250, 252, 0.85);
  border-bottom-color: transparent;
}

html[data-theme="light"] .nav.is-scrolled {
  border-bottom-color: var(--color-neutral-200);
}

html[data-theme="light"] .nav__brand {
  color: var(--color-neutral-900);
}

html[data-theme="light"] .nav__links a {
  color: var(--color-neutral-700);
}

html[data-theme="light"] .nav__links a:hover,
html[data-theme="light"] .nav__links a[aria-current="page"] {
  color: var(--color-primary-700);
}

/* Footer also inverts on light pages. */
html[data-theme="light"] .foot {
  background: var(--color-neutral-100);
  border-top-color: var(--color-neutral-200);
  color: var(--color-neutral-600);
}

html[data-theme="light"] .foot__col h4 { color: var(--color-neutral-500); }
html[data-theme="light"] .foot__col a { color: var(--color-neutral-700); }
html[data-theme="light"] .foot__col a:hover { color: var(--color-primary-700); }
html[data-theme="light"] .foot__brand-mark { color: var(--color-neutral-900); }
html[data-theme="light"] .foot__tagline,
html[data-theme="light"] .foot__address { color: var(--color-neutral-600); }
html[data-theme="light"] .foot__legal {
  border-top-color: var(--color-neutral-200);
  color: var(--color-neutral-500);
}