:root {
  --tb-bg: #f6f8fb;
  --tb-surface: #ffffff;
  --tb-surface-soft: #f9fbff;
  --tb-ink: #07111f;
  --tb-muted: #637083;
  --tb-line: rgba(7, 17, 31, 0.10);
  --tb-blue: #2563eb;
  --tb-cyan: #18c7d8;
  --tb-purple: #6557e8;
  --tb-dark: #07111f;
  --tb-deep: #0b1628;
  --tb-gradient: linear-gradient(135deg, #2563eb 0%, #18c7d8 52%, #6557e8 100%);
  --tb-gradient-soft: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(24, 199, 216, 0.10), rgba(101, 87, 232, 0.12));
  --tb-radius-xl: 28px;
  --tb-radius-lg: 20px;
  --tb-shadow-soft: 0 28px 90px rgba(7, 17, 31, 0.10);
  --tb-shadow-card: 0 16px 50px rgba(7, 17, 31, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.82)),
    radial-gradient(circle at 8% 0%, rgba(24, 199, 216, 0.06), transparent 28%),
    radial-gradient(circle at 94% 10%, rgba(101, 87, 232, 0.07), transparent 22%),
    var(--tb-bg);
  color: var(--tb-ink);
}

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

button,
input,
select,
textarea {
  font: inherit;
}

.shell {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(246, 248, 251, 0.84);
  border-bottom: 1px solid rgba(7, 17, 31, 0.05);
}

.nav-shell {
  min-height: 80px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.1rem;
}

.brand-icon {
  display: inline-block;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  flex: 0 0 auto;
  background:
    url("/public/assets/tobeat-hub-icon-ui.png") center / cover no-repeat,
    radial-gradient(circle at 62% 62%, rgba(94, 231, 239, 0.24), transparent 36%),
    linear-gradient(135deg, rgba(230, 211, 179, 0.95), rgba(184, 147, 95, 0.72));
  box-shadow:
    0 14px 34px rgba(0, 0, 0, 0.26),
    0 0 0 1px rgba(230, 211, 179, 0.18);
}

.brand-dot {
  width: 15px;
  height: 15px;
  border-radius: 999px;
  background: var(--tb-gradient);
  box-shadow: 0 0 0 10px rgba(37, 99, 235, 0.06);
}

.desktop-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 28px;
}

.desktop-nav a,
.mobile-menu a {
  color: var(--tb-muted);
  font-size: 0.95rem;
  transition: color 180ms ease;
}

.desktop-nav a[aria-current="page"],
.desktop-nav a:hover,
.mobile-menu a[aria-current="page"] {
  color: var(--tb-ink);
}

.menu-toggle {
  display: none;
  margin-left: auto;
  width: 48px;
  height: 48px;
  border: 1px solid var(--tb-line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  align-items: center;
  justify-content: center;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--tb-ink);
  margin: 3px auto;
}

.mobile-menu {
  display: none;
  border-top: 1px solid rgba(7, 17, 31, 0.06);
}

.mobile-menu nav {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  gap: 14px;
  padding: 0 0 20px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.icon {
  width: 1.05em;
  height: 1.05em;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-product {
  opacity: 0.95;
}

.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;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: var(--tb-gradient);
  box-shadow: 0 14px 36px rgba(37, 99, 235, 0.18);
}

.button-secondary {
  color: var(--tb-ink);
  background: rgba(255, 255, 255, 0.86);
  border-color: rgba(7, 17, 31, 0.08);
  box-shadow: 0 8px 20px rgba(7, 17, 31, 0.04);
}

.button-dark {
  color: #fff;
  background: var(--tb-dark);
  box-shadow: 0 14px 36px rgba(7, 17, 31, 0.16);
}

.button-disabled {
  color: rgba(7, 17, 31, 0.42);
  background: rgba(7, 17, 31, 0.05);
  border-color: rgba(7, 17, 31, 0.08);
  box-shadow: none;
  cursor: not-allowed;
  pointer-events: none;
}

.button-ghost-light {
  color: #f4fbff;
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(111, 244, 255, 0.18);
  box-shadow: none;
}

.hero-section,
.section-first {
  padding-top: 72px;
}

.hero-section {
  padding-bottom: 72px;
}

.section {
  padding: 56px 0;
}

.section-air {
  padding: 76px 0;
}

.hero-grid,
.split-layout,
.contact-layout,
.featured-panel,
.feature-stack {
  display: grid;
  gap: 32px;
}

.hero-grid {
  grid-template-columns: 1fr;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.featured-panel,
.cta-band,
.contact-card,
.service-card,
.lab-card,
.list-card,
.tile-card,
.principle-card,
.product-card {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--tb-shadow-card);
}

.hero-copy,
.hero-panel,
.featured-panel,
.cta-band,
.contact-card {
  border-radius: var(--tb-radius-xl);
  padding: clamp(24px, 3vw, 42px);
}

.hero-copy {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 720px;
  max-width: none;
}

.hero-copy::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(7, 17, 31, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.025) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.18), rgba(0,0,0,0));
  pointer-events: none;
}

.eyebrow-row {
  display: grid;
  gap: 18px;
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-kicker,
.mini-label,
.status-note {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--tb-muted);
}

.badge-row,
.chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.glass-pill,
.status-pill,
.chip-grid span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid rgba(7, 17, 31, 0.07);
}

.glass-pill {
  background: rgba(255, 255, 255, 0.68);
  color: var(--tb-ink);
}

.status-pill {
  background: rgba(7, 17, 31, 0.05);
  color: var(--tb-deep);
}

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

h1 {
  position: relative;
  z-index: 1;
  font-size: clamp(3.1rem, 7vw, 5.9rem);
  line-height: 0.96;
  max-width: 11ch;
}

h2 {
  font-size: clamp(2.1rem, 3.4vw, 3.6rem);
  line-height: 1.03;
  max-width: 15ch;
}

h3 {
  font-size: 1.52rem;
  line-height: 1.08;
}

p {
  color: var(--tb-muted);
  line-height: 1.72;
  max-width: 68ch;
}

.hero-subtitle,
.hero-support {
  position: relative;
  z-index: 1;
}

.hero-subtitle {
  font-size: 1.08rem;
  margin-top: 22px;
}

.hero-support {
  margin-top: 14px;
  max-width: 54ch;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
  position: relative;
  z-index: 1;
}

.hero-panel {
  position: relative;
  overflow: hidden;
  min-height: 720px;
  align-content: end;
}

.signal-map {
  position: absolute;
  inset: 0;
}

.signal-grid,
.signal-frame-grid {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(7, 17, 31, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.42;
}

.hero-card,
.tile-card,
.principle-card,
.product-card,
.service-card,
.lab-card,
.list-card {
  position: relative;
  border-radius: var(--tb-radius-lg);
}

.hero-card {
  padding: 24px;
}

.hero-card-large {
  min-height: 290px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-products-card {
  margin-top: auto;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
}

.hero-card-top,
.product-meta {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
}

.mini-kpi,
.product-label {
  color: var(--tb-muted);
  font-size: 0.92rem;
}

.hero-mini-grid,
.product-grid,
.tile-grid,
.principles-grid,
.service-columns,
.labs-board,
.product-list,
.feature-stack {
  display: grid;
  gap: 20px;
}

.section-heading {
  display: grid;
  gap: 14px;
  margin-bottom: 36px;
}

.section-heading.compact {
  align-content: start;
  margin-bottom: 0;
}

.editorial-grid {
  grid-template-columns: 1.2fr 0.9fr 0.9fr;
  align-items: stretch;
}

.product-card,
.service-card,
.lab-card,
.list-card {
  padding: 28px;
}

.product-card {
  min-height: 330px;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(249,251,255,0.96));
}

.product-card-featured {
  min-height: 380px;
  padding: 32px;
  background:
    radial-gradient(circle at 100% 0%, rgba(24, 199, 216, 0.16), transparent 36%),
    radial-gradient(circle at 10% 90%, rgba(24, 199, 216, 0.12), transparent 28%),
    linear-gradient(180deg, #071114 0%, #0b1a1f 100%);
  border: 1px solid rgba(111, 244, 255, 0.12);
  box-shadow:
    0 30px 70px rgba(4, 13, 18, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.product-card-featured h3,
.product-card-featured p,
.product-card-featured .product-label {
  color: #eff8fb;
}

.product-card-featured p {
  color: rgba(223, 240, 244, 0.82);
}

.product-card-featured .status-note {
  color: #79eff8;
}

.product-card-featured .button-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: #f3fbfd;
  border-color: rgba(111, 244, 255, 0.16);
  box-shadow: none;
}

.product-meta {
  margin-bottom: 18px;
  flex-direction: column;
}

.status-note {
  color: var(--tb-blue);
}

.product-card h3 {
  margin-bottom: 14px;
}

.product-card p {
  margin-bottom: 28px;
}

.product-actions {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.product-actions-stacked {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.product-actions .button {
  align-self: flex-start;
}

.accent-deep::before,
.accent-blue::before,
.accent-purple::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  border-radius: 20px 20px 0 0;
}

.accent-deep::before { background: linear-gradient(90deg, var(--tb-deep), rgba(37, 99, 235, 0.35)); }
.accent-blue::before { background: linear-gradient(90deg, rgba(37, 99, 235, 0.88), rgba(37, 99, 235, 0.22)); }
.accent-purple::before { background: linear-gradient(90deg, rgba(101, 87, 232, 0.88), rgba(101, 87, 232, 0.22)); }

.hero-ecosystem-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.hero-products-copy h3 {
  font-size: 2rem;
  line-height: 1.02;
  margin-bottom: 20px;
}

.hero-products-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 14px;
  position: relative;
}

.hero-products-grid::before,
.hero-products-grid::after {
  content: "";
  position: absolute;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.08), rgba(24, 199, 216, 0.16), rgba(101, 87, 232, 0.08));
  pointer-events: none;
}

.hero-products-grid::before {
  left: calc(50% - 24px);
  top: 110px;
  width: 36px;
  height: 1px;
}

.hero-products-grid::after {
  left: calc(50% + 12px);
  top: 122px;
  width: 1px;
  height: 112px;
}

.hero-product-card {
  border-radius: 22px;
  padding: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(249,251,255,0.96));
  border: 1px solid rgba(7, 17, 31, 0.08);
  box-shadow: 0 12px 32px rgba(7, 17, 31, 0.05);
  display: grid;
  gap: 10px;
  min-height: 170px;
}

.hero-product-card-upet {
  grid-row: 1 / span 2;
  min-height: 356px;
  padding: 22px;
  border-color: rgba(111, 244, 255, 0.16);
  background:
    radial-gradient(circle at 100% 0%, rgba(24, 199, 216, 0.16), transparent 42%),
    radial-gradient(circle at 8% 88%, rgba(24, 199, 216, 0.1), transparent 26%),
    linear-gradient(180deg, #071114 0%, #0b1a1f 100%);
  box-shadow:
    0 20px 42px rgba(4, 13, 18, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.hero-product-card-upet strong {
  font-size: 1.8rem;
  color: #eff8fb;
}

.hero-product-card-upet p,
.hero-product-card-upet .hero-product-signal {
  color: rgba(223, 240, 244, 0.84);
}

.hero-product-card strong {
  font-size: 1.24rem;
  line-height: 1.08;
}

.hero-product-card p {
  color: var(--tb-ink);
  font-size: 0.98rem;
  line-height: 1.45;
}

.hero-product-status,
.hero-product-signal {
  font-size: 0.82rem;
  line-height: 1.45;
}

.hero-product-status {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  width: fit-content;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(7, 17, 31, 0.08);
  background: rgba(7, 17, 31, 0.04);
  color: var(--tb-muted);
  font-weight: 700;
}

.hero-product-card-upet .hero-product-status {
  border-color: rgba(24, 199, 216, 0.16);
  background: rgba(24, 199, 216, 0.12);
  color: #87f4fb;
}

.hero-product-signal {
  color: var(--tb-muted);
}

.hero-products-footnote {
  margin-top: 18px;
  font-size: 0.94rem;
  max-width: 44ch;
}

.flagship-upet {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: clamp(24px, 3vw, 40px);
  border-radius: var(--tb-radius-xl);
  background:
    radial-gradient(circle at 18% 14%, rgba(24, 199, 216, 0.18), transparent 28%),
    radial-gradient(circle at 88% 82%, rgba(24, 199, 216, 0.14), transparent 24%),
    linear-gradient(180deg, #071114 0%, #0b1a1f 100%);
  border: 1px solid rgba(111, 244, 255, 0.12);
  box-shadow: 0 30px 80px rgba(4, 13, 18, 0.32);
  overflow: hidden;
}

.flagship-copy {
  display: grid;
  align-content: start;
  gap: 18px;
}

.section-kicker-dark {
  color: rgba(173, 242, 247, 0.72);
}

.flagship-upet h2,
.flagship-upet p,
.flagship-upet strong,
.flagship-upet span {
  color: #eff8fb;
}

.flagship-upet p {
  max-width: 60ch;
  color: rgba(223, 240, 244, 0.8);
}

.chip-grid-dark span {
  background: rgba(95, 231, 240, 0.22);
  border-color: rgba(130, 245, 255, 0.28);
  color: #f8feff !important;
  font-weight: 700;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.18);
  box-shadow:
    inset 0 0 0 1px rgba(111, 244, 255, 0.06),
    0 8px 22px rgba(0, 0, 0, 0.1);
}

.flagship-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.feature-stack {
  grid-template-columns: 1fr;
}

.featured-panel {
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
  align-items: stretch;
}

.upet-panel {
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(244,247,252,0.98));
}

.upet-panel-strong {
  border-color: rgba(11, 22, 40, 0.08);
}

.pool-panel {
  grid-template-columns: 1fr;
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(247,247,255,0.98));
}

.featured-copy {
  display: grid;
  align-content: start;
  gap: 16px;
}

.featured-visual {
  min-height: 320px;
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(11, 22, 40, 0.96), rgba(17, 31, 54, 0.94));
}

.signal-frame {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 26px;
}

.signal-frame-grid {
  opacity: 0.12;
}

.signal-frame-card {
  position: absolute;
  left: 26px;
  right: 26px;
  bottom: 26px;
  padding: 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(10px);
}

.signal-frame-card span {
  display: block;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.52);
}

.signal-frame-card strong {
  font-size: 1.05rem;
  line-height: 1.5;
}

.chip-grid span {
  background: rgba(7, 17, 31, 0.04);
  color: var(--tb-ink);
}

.chip-grid-muted span {
  background: rgba(255, 255, 255, 0.66);
}

.split-layout,
.contact-layout {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
}

.split-layout-wide {
  gap: 40px;
}

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

.tile-card {
  min-height: 130px;
  display: flex;
  align-items: end;
  padding: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(249,251,255,0.96));
}

.tile-card span {
  font-size: 1.04rem;
  font-weight: 600;
}

.principles-grid-editorial {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.principle-card {
  min-height: 170px;
  padding: 24px;
  display: grid;
  align-content: space-between;
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(250,251,255,0.96));
}

.principle-index {
  font-size: 0.82rem;
  color: var(--tb-blue);
  font-weight: 700;
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(249,251,255,0.96));
}

.founder-contact {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 28px;
  align-items: stretch;
}

.founder-contact-home {
  padding: clamp(24px, 3vw, 36px);
  border-radius: var(--tb-radius-xl);
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(249,251,255,0.96));
  box-shadow: 0 16px 40px rgba(7, 17, 31, 0.05);
}

.founder-contact-page {
  align-items: start;
}

.founder-contact-copy {
  display: grid;
  align-content: start;
  gap: 16px;
}

.founder-proof {
  display: grid;
  gap: 10px;
  margin-top: 4px;
}

.founder-proof span,
.founder-contact-note,
.founder-card-copy,
.founder-card-footnote {
  color: var(--tb-muted);
}

.founder-proof span {
  position: relative;
  padding-left: 18px;
}

.founder-proof span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.86);
  box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.08);
}

.founder-contact-note {
  max-width: 58ch;
}

.founder-card {
  padding: 26px;
  border-radius: var(--tb-radius-xl);
  background:
    radial-gradient(circle at 100% 0%, rgba(24, 199, 216, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(255,255,255,1), rgba(248,250,255,0.98));
  border: 1px solid rgba(7, 17, 31, 0.08);
  box-shadow: 0 20px 44px rgba(7, 17, 31, 0.06);
  display: grid;
  gap: 18px;
}

.founder-card-page {
  min-height: 100%;
}

.founder-card-top {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px 16px;
  align-items: center;
}

.founder-avatar {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.9), rgba(24, 199, 216, 0.9));
  color: #ffffff;
  font-size: 1rem;
  font-weight: 800;
  box-shadow: 0 16px 26px rgba(37, 99, 235, 0.14);
}

.founder-identity {
  display: grid;
  gap: 2px;
}

.founder-identity strong {
  color: var(--tb-ink);
  font-size: 1.08rem;
}

.founder-identity span {
  color: var(--tb-muted);
  font-size: 0.94rem;
}

.founder-status {
  grid-column: 1 / -1;
  width: fit-content;
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(24, 199, 216, 0.08);
  border: 1px solid rgba(24, 199, 216, 0.14);
  color: #0e8f99;
  font-size: 0.82rem;
  font-weight: 700;
}

.founder-card-role {
  color: var(--tb-ink);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.4;
}

.founder-card-actions {
  display: grid;
  gap: 12px;
}

.founder-card-footnote {
  padding-top: 6px;
  border-top: 1px solid rgba(7, 17, 31, 0.08);
}

.hub-hero {
  padding-bottom: 84px;
}

.hub-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(340px, 0.98fr);
  gap: 28px;
  align-items: stretch;
}

.hub-hero-copy,
.hub-hero-visual,
.thesis-card,
.system-card,
.infrastructure-card,
.timeline-step,
.ecosystem-path-step,
.principle-labs-card,
.upet-feature-tile,
.founder-labs,
.founder-card,
.footer-grid {
  border-radius: var(--tb-radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: var(--tb-shadow-card);
}

.hub-hero-copy {
  position: relative;
  overflow: hidden;
  min-height: 760px;
  padding: clamp(28px, 3vw, 44px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    linear-gradient(rgba(7, 17, 31, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.03) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 251, 255, 0.96));
  background-size: 36px 36px, 36px 36px, auto;
}

.hub-hero-topline {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 16px;
  margin-bottom: 18px;
}

.hero-microproof {
  color: var(--tb-muted);
  font-size: 0.95rem;
  max-width: 48ch;
}

.hero-upet-line {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  margin-bottom: 22px;
}

.hero-upet-pill {
  width: fit-content;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(7, 17, 31, 0.06);
  border: 1px solid rgba(7, 17, 31, 0.08);
  color: var(--tb-ink);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.hero-upet-line p {
  max-width: 56ch;
}

.hub-hero-visual {
  position: relative;
  min-height: 760px;
  padding: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at 12% 18%, rgba(24, 199, 216, 0.14), transparent 28%),
    radial-gradient(circle at 88% 86%, rgba(101, 87, 232, 0.12), transparent 22%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(247, 250, 255, 0.94));
}

.hub-network-grid {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(7, 17, 31, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.04) 1px, transparent 1px);
  background-size: 38px 38px;
  opacity: 0.7;
  pointer-events: none;
}

.hub-network-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.network-line {
  position: absolute;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.18), rgba(24, 199, 216, 0.22), rgba(101, 87, 232, 0.18));
  border-radius: 999px;
}

.line-upet {
  left: 42%;
  top: 24%;
  width: 26%;
  height: 1px;
}

.line-sol {
  left: 33%;
  top: 52%;
  width: 1px;
  height: 19%;
}

.line-pool {
  right: 28%;
  top: 46%;
  width: 20%;
  height: 1px;
}

.line-cycling {
  left: 48%;
  bottom: 28%;
  width: 22%;
  height: 1px;
}

.ecosystem-node,
.ecosystem-core {
  position: absolute;
  display: grid;
  gap: 10px;
  padding: 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(7, 17, 31, 0.08);
  box-shadow: 0 18px 36px rgba(7, 17, 31, 0.08);
}

.ecosystem-node strong,
.ecosystem-core strong {
  font-size: 1.18rem;
  line-height: 1.1;
}

.ecosystem-node p,
.ecosystem-core p {
  font-size: 0.92rem;
  line-height: 1.55;
}

.ecosystem-node-upet {
  top: 26px;
  left: 26px;
  width: min(100%, 320px);
  min-height: 240px;
  background:
    radial-gradient(circle at 14% 18%, rgba(24, 199, 216, 0.2), transparent 28%),
    linear-gradient(180deg, #071114 0%, #0b1a1f 100%);
  border-color: rgba(111, 244, 255, 0.14);
  box-shadow: 0 28px 60px rgba(4, 13, 18, 0.28);
}

.ecosystem-node-upet strong,
.ecosystem-node-upet p,
.ecosystem-node-upet .node-badge,
.ecosystem-node-upet .node-indicators span {
  color: #eff8fb;
}

.ecosystem-node-sol {
  right: 28px;
  top: 92px;
  width: 220px;
}

.ecosystem-node-pool {
  right: 42px;
  bottom: 156px;
  width: 240px;
}

.ecosystem-node-cycling {
  left: 42px;
  bottom: 54px;
  width: 250px;
}

.node-badge {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--tb-blue);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.node-indicators {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.node-indicators span {
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.74rem;
}

.ecosystem-core {
  left: 50%;
  top: 50%;
  width: 250px;
  transform: translate(-50%, -50%);
  text-align: center;
  padding: 22px;
}

.ecosystem-core span {
  font-size: 0.78rem;
  color: var(--tb-blue);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.thesis-heading h2 {
  max-width: 12ch;
}

.thesis-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.thesis-card {
  padding: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(249, 251, 255, 0.96));
}

.thesis-card h3 {
  margin-bottom: 12px;
}

.systems-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.system-card {
  display: grid;
  gap: 18px;
  padding: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(249, 251, 255, 0.96));
}

.system-card-featured {
  grid-column: span 2;
  min-height: 420px;
  background:
    radial-gradient(circle at 100% 0%, rgba(24, 199, 216, 0.16), transparent 36%),
    radial-gradient(circle at 10% 90%, rgba(24, 199, 216, 0.12), transparent 28%),
    linear-gradient(180deg, #071114 0%, #0b1a1f 100%);
  border-color: rgba(111, 244, 255, 0.12);
  box-shadow: 0 30px 70px rgba(4, 13, 18, 0.22);
}

.system-card-featured h3,
.system-card-featured p,
.system-card-featured .system-category,
.system-card-featured .status-note,
.system-card-featured .system-indicators span,
.system-card-featured .system-tags span {
  color: #eff8fb;
}

.system-card-featured .system-indicators span,
.system-card-featured .system-tags span {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(111, 244, 255, 0.14);
}

.system-card-top,
.system-card-body {
  display: grid;
  gap: 12px;
}

.system-indicators,
.system-tags,
.upet-venture-pillbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.system-indicators span,
.system-tags span,
.upet-venture-pillbar span {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(7, 17, 31, 0.05);
  border: 1px solid rgba(7, 17, 31, 0.07);
  color: var(--tb-muted);
  font-size: 0.78rem;
  font-weight: 600;
}

.system-category {
  color: var(--tb-muted);
  font-size: 0.92rem;
}

.system-actions {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.system-actions-double {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.infrastructure-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
}

.infrastructure-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.infrastructure-card {
  min-height: 110px;
  padding: 22px;
  display: flex;
  align-items: end;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(249, 251, 255, 0.96));
}

.infrastructure-card span {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.45;
}

.upet-venture {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.92fr);
  gap: 28px;
  padding: clamp(26px, 3vw, 42px);
  border-radius: var(--tb-radius-xl);
  background:
    radial-gradient(circle at 18% 14%, rgba(24, 199, 216, 0.18), transparent 28%),
    radial-gradient(circle at 88% 82%, rgba(24, 199, 216, 0.14), transparent 24%),
    linear-gradient(180deg, #071114 0%, #0b1a1f 100%);
  border: 1px solid rgba(111, 244, 255, 0.12);
  box-shadow: 0 30px 80px rgba(4, 13, 18, 0.32);
}

.upet-venture-copy {
  display: grid;
  gap: 18px;
  align-content: start;
}

.upet-venture-copy h2,
.upet-venture-copy p,
.upet-venture-copy .section-kicker-dark {
  color: #eff8fb;
}

.upet-venture-copy p {
  color: rgba(223, 240, 244, 0.82);
}

.upet-venture-pillbar span {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(111, 244, 255, 0.14);
  color: #eff8fb;
}

.upet-venture-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.upet-venture-visual {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.upet-feature-tile {
  min-height: 150px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(111, 244, 255, 0.12);
}

.upet-feature-tile span {
  display: block;
  margin-bottom: 10px;
  color: rgba(173, 242, 247, 0.72);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.upet-feature-tile strong {
  color: #eff8fb;
  font-size: 1rem;
  line-height: 1.45;
}

.upet-feature-passport {
  grid-column: span 2;
  min-height: 180px;
}

.timeline-stack {
  display: grid;
  gap: 14px;
  margin-bottom: 34px;
}

.timeline-step {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 20px;
  padding: 20px 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(249, 251, 255, 0.96));
}

.timeline-index {
  color: var(--tb-blue);
  font-size: 1.2rem;
  font-weight: 800;
}

.timeline-step h3 {
  margin-bottom: 8px;
}

.ecosystem-timeline {
  display: grid;
  gap: 24px;
}

.ecosystem-path {
  display: grid;
  gap: 16px;
}

.ecosystem-path-step {
  position: relative;
  padding: 22px 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(249, 251, 255, 0.96));
}

.ecosystem-path-step::after {
  content: "";
  position: absolute;
  left: 36px;
  bottom: -16px;
  width: 1px;
  height: 16px;
  background: rgba(7, 17, 31, 0.12);
}

.ecosystem-path-step:last-child::after {
  display: none;
}

.ecosystem-path-step-upet {
  background:
    radial-gradient(circle at 100% 0%, rgba(24, 199, 216, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 1), rgba(246, 252, 253, 0.98));
  border-color: rgba(24, 199, 216, 0.16);
}

.path-stage {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--tb-muted);
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.ecosystem-path-step strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.12rem;
}

.principles-labs-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.principle-labs-card {
  min-height: 190px;
  padding: 24px;
  display: grid;
  align-content: space-between;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(250, 251, 255, 0.96));
}

.founder-labs {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 28px;
  align-items: stretch;
}

.founder-labs-copy {
  display: grid;
  align-content: start;
  gap: 16px;
}

.founder-labs-note {
  color: var(--tb-ink);
  font-weight: 600;
}

.founder-labs-page {
  align-items: start;
}

.footer-grid {
  border-color: rgba(255, 255, 255, 0.72);
}

.site-footer {
  padding: 36px 0 52px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 18px;
  padding: 30px;
  border-radius: var(--tb-radius-xl);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 10px 26px rgba(7, 17, 31, 0.04);
}

.footer-brand,
.footer-title {
  font-weight: 700;
  margin-bottom: 10px;
}

.footer-grid p,
.footer-grid a {
  color: var(--tb-muted);
}

.footer-grid a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  margin-bottom: 10px;
}

.footer-grid a .icon {
  width: 0.95em;
  height: 0.95em;
  color: var(--gold-primary);
  opacity: 0.82;
}

.contact-card form {
  display: grid;
  gap: 16px;
}

.contact-card label {
  display: grid;
  gap: 8px;
}

.contact-card span {
  font-size: 0.92rem;
  font-weight: 600;
}

.contact-card input,
.contact-card select,
.contact-card textarea {
  width: 100%;
  border: 1px solid rgba(7, 17, 31, 0.1);
  border-radius: 16px;
  background: rgba(249, 251, 255, 0.96);
  color: var(--tb-ink);
  padding: 14px 16px;
}

.contact-card textarea {
  resize: vertical;
}

.contact-card small {
  color: #cf3d6a;
}

.success-box {
  margin-bottom: 20px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.14);
}

.success-box h2 {
  font-size: 1.35rem;
  max-width: none;
  margin-bottom: 8px;
}

@media (max-width: 900px) {
  .hero-grid,
  .hub-hero-grid,
  .editorial-grid,
  .split-layout,
  .contact-layout,
  .upet-venture,
  .founder-contact,
  .founder-labs,
  .thesis-grid,
  .systems-grid,
  .principles-labs-grid,
  .principles-grid-editorial,
  .flagship-upet,
  .featured-panel,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .system-card-featured,
  .upet-feature-passport {
    grid-column: auto;
  }

  .upet-venture-visual,
  .infrastructure-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hub-hero-copy,
  .hub-hero-visual {
    min-height: auto;
  }

  .hub-hero-visual {
    min-height: 820px;
  }

  .hero-copy,
  .hero-panel {
    min-height: auto;
  }

  .hero-panel {
    min-height: 560px;
  }

  .cta-band,
  .founder-contact {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 820px) {
  .desktop-nav,
  .nav-cta {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .mobile-menu.is-open {
    display: block;
  }

  .hero-section,
  .section-first {
    padding-top: 28px;
  }

  .section,
  .section-air {
    padding: 42px 0;
  }

  .hero-mini-grid,
  .tile-grid-editorial,
  .product-actions-stacked,
  .system-actions-double,
  .upet-venture-visual,
  .infrastructure-grid {
    grid-template-columns: 1fr;
  }

  .hub-hero-visual {
    min-height: 920px;
    padding: 20px;
  }

  .ecosystem-core {
    left: 50%;
    top: 50%;
    width: 230px;
  }

  .ecosystem-node-upet,
  .ecosystem-node-sol,
  .ecosystem-node-pool,
  .ecosystem-node-cycling {
    width: auto;
    left: 20px;
    right: 20px;
  }

  .ecosystem-node-upet {
    top: 20px;
    min-height: 210px;
  }

  .ecosystem-node-sol {
    top: 254px;
  }

  .ecosystem-node-pool {
    top: 424px;
    bottom: auto;
  }

  .ecosystem-node-cycling {
    top: 594px;
    bottom: auto;
  }

  .line-upet,
  .line-sol,
  .line-pool,
  .line-cycling {
    display: none;
  }

  h1 {
    max-width: 12ch;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 20px, 1200px);
  }

  .nav-shell {
    min-height: 72px;
  }

  .hero-copy,
  .hub-hero-copy,
  .hub-hero-visual,
  .hero-panel,
  .featured-panel,
  .contact-card,
  .cta-band,
  .founder-contact-home,
  .footer-grid {
    padding: 20px;
  }

  .hero-panel {
    min-height: 440px;
  }

  .glass-pill,
  .status-pill,
  .chip-grid span {
    min-height: 32px;
    font-size: 0.78rem;
  }

  .button {
    width: 100%;
  }

  .hero-actions,
  .cta-actions,
  .flagship-actions,
  .founder-card-actions {
    display: grid;
  }

  .product-card,
  .service-card,
  .lab-card,
  .list-card,
  .tile-card,
  .principle-card {
    padding: 20px;
  }

  .product-card-featured {
    padding: 24px;
  }

  .timeline-step {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

/* Tobeat Labs premium infrastructure theme */
:root {
  --bg-primary: #050816;
  --bg-secondary: #0b1020;
  --bg-tertiary: #111827;
  --bg-elevated: rgba(17, 24, 39, 0.82);
  --bg-panel: rgba(14, 20, 35, 0.9);
  --bg-panel-strong: rgba(8, 13, 25, 0.96);
  --gold-primary: #d6b98a;
  --gold-soft: #e6d3b3;
  --gold-muted: #b8935f;
  --gold-deep: #8f7046;
  --text-primary: #f7f3ea;
  --text-secondary: #b8c0cf;
  --text-tertiary: #7f8ca3;
  --border-soft: rgba(230, 211, 179, 0.13);
  --border-strong: rgba(230, 211, 179, 0.24);
  --glow-gold: 0 0 42px rgba(214, 185, 138, 0.12);
  --glow-cyan: 0 0 42px rgba(24, 199, 216, 0.1);
  --shadow-premium: 0 28px 80px rgba(0, 0, 0, 0.36);
  --shadow-panel: 0 18px 52px rgba(0, 0, 0, 0.28);
  --transition-premium: 180ms ease;
  --section-padding-desktop: clamp(34px, 4.4vw, 58px);
  --section-padding-tablet: 38px;
  --section-padding-mobile: 28px;
  --card-padding: clamp(16px, 1.7vw, 22px);
  --grid-gap: clamp(12px, 1.5vw, 18px);
  --content-max-width: 1180px;
  --hero-min-height: clamp(470px, 58vh, 560px);
  --hero-padding: clamp(20px, 2.5vw, 30px);
  --tb-bg: var(--bg-primary);
  --tb-surface: var(--bg-panel);
  --tb-surface-soft: var(--bg-elevated);
  --tb-ink: var(--text-primary);
  --tb-muted: var(--text-secondary);
  --tb-line: var(--border-soft);
  --tb-blue: #7aa7ff;
  --tb-cyan: #5ee7ef;
  --tb-purple: #9a8cff;
  --tb-dark: #050816;
  --tb-deep: #0b1020;
  --tb-gradient: linear-gradient(135deg, #0b1020 0%, #182033 42%, #d6b98a 100%);
  --tb-gradient-soft: linear-gradient(135deg, rgba(214, 185, 138, 0.14), rgba(24, 199, 216, 0.08), rgba(154, 140, 255, 0.08));
  --tb-shadow-soft: var(--shadow-premium);
  --tb-shadow-card: var(--shadow-panel);
}

body {
  background:
    linear-gradient(180deg, rgba(5, 8, 22, 0.98) 0%, rgba(11, 16, 32, 0.98) 46%, rgba(5, 8, 22, 1) 100%),
    radial-gradient(circle at 18% 0%, rgba(214, 185, 138, 0.08), transparent 28%),
    radial-gradient(circle at 82% 14%, rgba(94, 231, 239, 0.06), transparent 24%),
    var(--bg-primary);
  color: var(--text-primary);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(rgba(230, 211, 179, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(230, 211, 179, 0.022) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 78%);
  pointer-events: none;
}

.site-header {
  background: rgba(5, 8, 22, 0.76);
  border-bottom-color: rgba(230, 211, 179, 0.1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.16);
}

.brand-type,
.desktop-nav a[aria-current="page"],
.desktop-nav a:hover,
.mobile-menu a[aria-current="page"],
h1,
h2,
h3 {
  color: var(--text-primary);
}

.brand-dot {
  background: linear-gradient(135deg, var(--gold-soft), var(--gold-muted));
  box-shadow: 0 0 0 10px rgba(214, 185, 138, 0.07), var(--glow-gold);
}

.brand-icon {
  box-shadow:
    0 16px 42px rgba(0, 0, 0, 0.34),
    0 0 0 1px rgba(230, 211, 179, 0.22),
    0 0 24px rgba(94, 231, 239, 0.10);
}

.desktop-nav a,
.mobile-menu a,
p,
.hero-microproof,
.hero-upet-line p,
.system-category,
.founder-proof span,
.founder-contact-note,
.founder-card-copy,
.founder-card-footnote,
.footer-grid p,
.footer-grid a {
  color: var(--text-secondary);
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid rgba(230, 211, 179, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  color: rgba(236, 241, 248, 0.64);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.language-switcher a {
  color: rgba(236, 241, 248, 0.62);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  transition: color var(--transition-premium);
}

.language-switcher a:hover,
.language-switcher a[aria-current="true"] {
  color: var(--gold-soft);
}

.language-switcher span {
  color: rgba(230, 211, 179, 0.28);
  font-size: 0.72rem;
}

.menu-toggle {
  background: rgba(17, 24, 39, 0.8);
  border-color: var(--border-soft);
}

.menu-toggle span {
  background: var(--text-primary);
}

.mobile-menu {
  background: rgba(5, 8, 22, 0.94);
  border-top-color: var(--border-soft);
}

.mobile-menu.is-open {
  background:
    radial-gradient(circle at 10% 0%, rgba(214, 185, 138, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(7, 10, 18, 0.98), rgba(5, 8, 22, 0.98));
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.34);
}

.mobile-menu nav {
  gap: 8px;
  padding: 14px 0 26px;
}

.mobile-menu nav > a:not(.button) {
  display: flex;
  align-items: center;
  min-height: 46px;
  padding: 0 2px;
  color: rgba(236, 241, 248, 0.82);
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.mobile-menu nav > a:not(.button):hover,
.mobile-menu nav > a:not(.button)[aria-current="page"] {
  color: var(--text-primary);
}

.mobile-menu nav > a:not(.button)::after {
  content: "";
  height: 1px;
  flex: 1;
  margin-left: 16px;
  background: linear-gradient(90deg, rgba(214, 185, 138, 0.22), transparent);
  opacity: 0;
  transition: opacity var(--transition-premium);
}

.mobile-menu nav > a:not(.button):hover::after,
.mobile-menu nav > a:not(.button)[aria-current="page"]::after {
  opacity: 1;
}

.mobile-menu .language-switcher {
  justify-self: start;
  margin: 8px 0 2px;
  background: rgba(230, 211, 179, 0.07);
}

.mobile-menu a.button-primary,
.mobile-menu .mobile-cta {
  min-height: 54px;
  margin-top: 12px;
  color: #070a12;
  background:
    linear-gradient(135deg, #ead9b9 0%, var(--gold-soft) 42%, var(--gold-primary) 100%);
  border-color: rgba(230, 211, 179, 0.72);
  box-shadow:
    0 20px 50px rgba(214, 185, 138, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.38);
  font-weight: 800;
}

.mobile-menu a.button-primary .icon,
.mobile-menu .mobile-cta .icon {
  color: #070a12;
  opacity: 0.86;
}

.eyebrow,
.section-kicker,
.mini-label,
.status-note,
.node-badge,
.path-stage,
.principle-index,
.ecosystem-core span {
  color: var(--gold-primary);
  letter-spacing: 0.16em;
}

.button {
  border-color: rgba(230, 211, 179, 0.12);
  transition: transform var(--transition-premium), box-shadow var(--transition-premium), border-color var(--transition-premium), background var(--transition-premium);
}

.button-primary {
  color: #070a12;
  background: linear-gradient(135deg, var(--gold-soft), var(--gold-primary) 52%, var(--gold-muted));
  box-shadow: 0 18px 44px rgba(214, 185, 138, 0.16);
}

.button-primary:hover {
  box-shadow: 0 22px 54px rgba(214, 185, 138, 0.24);
}

.button-secondary,
.button-dark,
.button-ghost-light {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.045);
  border-color: var(--border-soft);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
}

.button-secondary:hover,
.button-dark:hover,
.button-ghost-light:hover {
  border-color: var(--border-strong);
  background: rgba(230, 211, 179, 0.08);
}

.button-disabled {
  color: rgba(184, 192, 207, 0.48);
  background: rgba(255, 255, 255, 0.035);
  border-color: rgba(255, 255, 255, 0.06);
}

.hub-hero-copy,
.hub-hero-visual,
.thesis-card,
.system-card,
.infrastructure-card,
.timeline-step,
.ecosystem-path-step,
.principle-labs-card,
.upet-feature-tile,
.founder-labs,
.founder-card,
.footer-grid,
.hero-copy,
.hero-panel,
.featured-panel,
.cta-band,
.contact-card,
.service-card,
.lab-card,
.list-card,
.tile-card,
.principle-card,
.product-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.026)),
    var(--bg-panel);
  border-color: var(--border-soft);
  box-shadow: var(--shadow-panel);
}

.hub-hero-copy,
.hub-hero-visual {
  min-height: 760px;
  border-color: rgba(230, 211, 179, 0.16);
}

.hub-hero-copy {
  background:
    linear-gradient(rgba(230, 211, 179, 0.034) 1px, transparent 1px),
    linear-gradient(90deg, rgba(230, 211, 179, 0.028) 1px, transparent 1px),
    radial-gradient(circle at 70% 4%, rgba(214, 185, 138, 0.1), transparent 34%),
    linear-gradient(180deg, rgba(17, 24, 39, 0.92), rgba(8, 13, 25, 0.96));
  background-size: 42px 42px, 42px 42px, auto, auto;
}

.hub-hero-copy::after,
.hub-hero-visual::after,
.system-card::after,
.upet-venture::after {
  content: "";
  position: absolute;
  left: 24px;
  right: 24px;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(230, 211, 179, 0.44), transparent);
  pointer-events: none;
}

.hub-hero-copy,
.hub-hero-visual,
.system-card,
.upet-venture {
  position: relative;
}

.hub-hero-visual {
  background:
    radial-gradient(circle at 18% 12%, rgba(214, 185, 138, 0.11), transparent 28%),
    radial-gradient(circle at 86% 82%, rgba(94, 231, 239, 0.08), transparent 25%),
    linear-gradient(180deg, rgba(17, 24, 39, 0.92), rgba(8, 13, 25, 0.96));
}

.hub-network-grid {
  background:
    linear-gradient(rgba(230, 211, 179, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(230, 211, 179, 0.035) 1px, transparent 1px);
  opacity: 0.5;
}

.network-line {
  background: linear-gradient(90deg, rgba(214, 185, 138, 0.12), rgba(230, 211, 179, 0.42), rgba(94, 231, 239, 0.18));
}

.hero-upet-pill,
.glass-pill,
.status-pill,
.chip-grid span,
.system-indicators span,
.system-tags span,
.upet-venture-pillbar span {
  background: rgba(230, 211, 179, 0.075);
  border-color: rgba(230, 211, 179, 0.15);
  color: var(--gold-soft);
}

.hero-upet-pill {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

h1 {
  max-width: 11.8ch;
  color: var(--text-primary);
}

h2 {
  max-width: 13ch;
  color: var(--text-primary);
}

.hub-hero-copy h1 {
  font-size: clamp(3rem, 6.2vw, 5.7rem);
  letter-spacing: -0.04em;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 1.08rem;
  max-width: 62ch;
}

.ecosystem-node,
.ecosystem-core {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.065), rgba(255, 255, 255, 0.032)),
    rgba(13, 19, 34, 0.92);
  border-color: rgba(230, 211, 179, 0.13);
  box-shadow: var(--shadow-panel);
  backdrop-filter: blur(14px);
}

.ecosystem-node-upet {
  background:
    radial-gradient(circle at 16% 14%, rgba(94, 231, 239, 0.16), transparent 32%),
    linear-gradient(180deg, rgba(7, 17, 20, 0.98), rgba(7, 12, 22, 0.98));
  border-color: rgba(94, 231, 239, 0.22);
  box-shadow: 0 28px 64px rgba(0, 0, 0, 0.38), var(--glow-cyan);
}

.ecosystem-node-sol {
  border-color: rgba(214, 185, 138, 0.22);
  background:
    radial-gradient(circle at 82% 8%, rgba(214, 185, 138, 0.13), transparent 30%),
    linear-gradient(180deg, rgba(21, 20, 32, 0.95), rgba(12, 16, 29, 0.96));
}

.ecosystem-node-pool {
  border-color: rgba(154, 140, 255, 0.18);
}

.ecosystem-node-cycling {
  border-color: rgba(94, 231, 239, 0.16);
}

.ecosystem-core {
  border-color: rgba(230, 211, 179, 0.2);
  background:
    radial-gradient(circle at 50% 0%, rgba(214, 185, 138, 0.13), transparent 34%),
    rgba(8, 13, 25, 0.94);
}

.thesis-card,
.infrastructure-card,
.timeline-step,
.ecosystem-path-step,
.principle-labs-card,
.tile-card,
.lab-card,
.list-card,
.service-card,
.principle-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.028)),
    rgba(13, 19, 34, 0.88);
  border-color: rgba(230, 211, 179, 0.11);
}

.thesis-card:hover,
.system-card:hover,
.infrastructure-card:hover,
.timeline-step:hover,
.ecosystem-path-step:hover,
.principle-labs-card:hover,
.tile-card:hover,
.lab-card:hover,
.list-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-premium);
}

.thesis-card,
.system-card,
.infrastructure-card,
.timeline-step,
.ecosystem-path-step,
.principle-labs-card,
.tile-card,
.lab-card,
.list-card {
  transition: transform var(--transition-premium), border-color var(--transition-premium), box-shadow var(--transition-premium);
}

.system-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.058), rgba(255, 255, 255, 0.028)),
    rgba(13, 19, 34, 0.9);
  border-color: rgba(230, 211, 179, 0.12);
}

.system-card-featured,
.system-card-upet {
  background:
    radial-gradient(circle at 100% 0%, rgba(94, 231, 239, 0.16), transparent 35%),
    radial-gradient(circle at 8% 86%, rgba(214, 185, 138, 0.1), transparent 28%),
    linear-gradient(180deg, #071114 0%, #08101e 100%);
  border-color: rgba(94, 231, 239, 0.2);
  box-shadow: 0 32px 78px rgba(0, 0, 0, 0.42), var(--glow-cyan);
}

.system-card-featured {
  overflow: hidden;
  grid-template-rows: auto auto 1fr auto;
  gap: clamp(18px, 2vw, 26px);
}

.system-featured-mark {
  position: absolute;
  right: clamp(16px, 2vw, 26px);
  top: clamp(16px, 2vw, 26px);
  width: clamp(74px, 8vw, 112px);
  height: auto;
  opacity: 0.11;
  filter: saturate(0.9);
  pointer-events: none;
}

.system-featured-head,
.system-featured-foot {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.system-featured-head .status-note {
  max-width: 22ch;
}

.system-featured-main {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  max-width: 650px;
}

.system-featured-main h3 {
  font-size: clamp(3.3rem, 6.2vw, 6.1rem);
  letter-spacing: -0.055em;
  line-height: 0.88;
}

.system-featured-main > p:not(.system-category) {
  max-width: 58ch;
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.58;
}

.system-featured-proof {
  color: rgba(236, 241, 248, 0.78);
}

.system-featured-modules {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  align-self: end;
}

.system-featured-module {
  min-height: 118px;
  padding: 16px;
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.065), rgba(255, 255, 255, 0.032));
  border: 1px solid rgba(94, 231, 239, 0.16);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
}

.system-featured-module span {
  display: block;
  color: #f6fbff;
  font-weight: 800;
  margin-bottom: 8px;
}

.system-featured-module p {
  color: rgba(190, 204, 214, 0.78);
  font-size: 0.86rem;
  line-height: 1.45;
}

.system-featured-foot {
  align-items: center;
}

.system-featured-foot .system-tags {
  flex: 1;
}

.system-card-sol {
  border-color: rgba(214, 185, 138, 0.18);
  background:
    radial-gradient(circle at 92% 4%, rgba(214, 185, 138, 0.13), transparent 30%),
    linear-gradient(180deg, rgba(17, 20, 34, 0.94), rgba(10, 14, 26, 0.96));
}

.system-card-pool {
  border-color: rgba(154, 140, 255, 0.16);
}

.system-card-cycling {
  border-color: rgba(94, 231, 239, 0.14);
}

.system-card h3,
.thesis-card h3,
.timeline-step h3,
.ecosystem-path-step strong,
.principle-labs-card h3,
.infrastructure-card span,
.tile-card span,
.lab-card h3,
.list-card h3,
.founder-card-role,
.founder-identity strong {
  color: var(--text-primary);
}

.lab-card h3 a {
  color: inherit;
  text-decoration: none;
}

.lab-card h3 a:hover {
  color: var(--gold-soft);
}

.system-card-featured .status-note,
.system-card-featured .system-category,
.system-card-featured h3,
.system-card-featured p,
.system-card-featured .system-indicators span,
.system-card-featured .system-tags span {
  color: var(--text-primary);
}

.system-card-featured .system-indicators span,
.system-card-featured .system-tags span {
  background: rgba(94, 231, 239, 0.08);
  border-color: rgba(94, 231, 239, 0.16);
}

.system-card-sol .status-note,
.system-card-sol .system-category {
  color: var(--gold-primary);
}

.system-card-pool .status-note {
  color: #b9afff;
}

.system-card-cycling .status-note {
  color: #8df3fb;
}

.upet-venture {
  background:
    radial-gradient(circle at 16% 12%, rgba(94, 231, 239, 0.13), transparent 28%),
    radial-gradient(circle at 90% 80%, rgba(214, 185, 138, 0.1), transparent 24%),
    linear-gradient(180deg, #071114 0%, #07101d 100%);
  border-color: rgba(94, 231, 239, 0.18);
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.46);
}

.upet-venture-copy h2,
.upet-venture-copy p,
.upet-venture-copy .section-kicker-dark {
  color: var(--text-primary);
}

.upet-venture-copy p,
.upet-feature-tile strong {
  color: var(--text-secondary);
}

.upet-feature-tile {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.058), rgba(255, 255, 255, 0.028)),
    rgba(10, 19, 29, 0.74);
  border-color: rgba(94, 231, 239, 0.13);
}

.upet-feature-tile span {
  color: #9df4f8;
}

.upet-feature-passport {
  border-color: rgba(230, 211, 179, 0.2);
  background:
    radial-gradient(circle at 100% 0%, rgba(214, 185, 138, 0.12), transparent 34%),
    rgba(10, 19, 29, 0.78);
}

.ecosystem-path-step-upet {
  background:
    radial-gradient(circle at 100% 0%, rgba(94, 231, 239, 0.1), transparent 34%),
    rgba(10, 19, 29, 0.9);
  border-color: rgba(94, 231, 239, 0.18);
}

.founder-labs,
.founder-card {
  background:
    radial-gradient(circle at 100% 0%, rgba(214, 185, 138, 0.09), transparent 30%),
    linear-gradient(180deg, rgba(17, 24, 39, 0.9), rgba(8, 13, 25, 0.95));
  border-color: rgba(230, 211, 179, 0.14);
}

.founder-avatar {
  background: linear-gradient(135deg, var(--gold-soft), var(--gold-muted));
  color: #070a12;
  box-shadow: 0 18px 34px rgba(214, 185, 138, 0.16);
}

.founder-status {
  background: rgba(214, 185, 138, 0.09);
  border-color: rgba(214, 185, 138, 0.18);
  color: var(--gold-soft);
}

.founder-labs-note {
  color: var(--gold-soft);
}

.site-footer {
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.16));
}

.footer-grid {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.024)),
    rgba(8, 13, 25, 0.9);
  border-color: rgba(230, 211, 179, 0.12);
}

.footer-brand,
.footer-title {
  color: var(--text-primary);
}

@media (max-width: 900px) {
  .hub-hero-visual {
    min-height: 780px;
  }
}

@media (max-width: 820px) {
  .hub-hero-copy {
    min-height: auto;
  }

  .hub-hero-copy h1 {
    max-width: 12ch;
  }

  .hub-hero-visual {
    min-height: 920px;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 24px, 1200px);
  }

  .hub-hero {
    padding-bottom: 42px;
  }

  .hub-hero-copy,
  .hub-hero-visual,
  .upet-venture,
  .founder-labs {
    border-radius: 22px;
  }

  .hub-hero-copy h1 {
    font-size: clamp(2.65rem, 14vw, 4.1rem);
    max-width: 11ch;
  }

  h2 {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .ecosystem-node,
  .ecosystem-core {
    border-radius: 20px;
  }
}

/* Editorial density pass */
.shell {
  width: min(var(--content-max-width), calc(100% - 40px));
}

.hero-section,
.section-first {
  padding-top: 46px;
}

.hero-section,
.section,
.section-air {
  padding-bottom: var(--section-padding-desktop);
}

.section,
.section-air {
  padding-top: var(--section-padding-desktop);
}

.hub-hero {
  padding-bottom: 28px;
}

.hub-hero + .section-air {
  padding-top: 32px;
}

.hub-hero-grid {
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: var(--grid-gap);
}

.hub-hero-copy,
.hub-hero-visual {
  box-sizing: border-box;
  min-height: var(--hero-min-height);
  padding: var(--hero-padding);
}

.hub-hero-copy {
  justify-content: center;
}

.hero-watermark-logo {
  position: absolute;
  right: clamp(18px, 3vw, 34px);
  top: clamp(18px, 3vw, 34px);
  width: clamp(92px, 12vw, 154px);
  height: auto;
  opacity: 0.075;
  filter: saturate(0.95);
  pointer-events: none;
  user-select: none;
}

.hub-hero-topline {
  gap: 10px;
  margin-bottom: 14px;
}

.hero-upet-line {
  gap: 9px;
  margin-bottom: 18px;
}

.hero-upet-pill {
  min-height: 34px;
  padding-inline: 14px;
}

.hub-hero-copy h1 {
  max-width: 15ch;
  font-size: clamp(2.45rem, 3.9vw, 3.9rem);
  line-height: 1;
  letter-spacing: -0.035em;
}

.hero-subtitle {
  max-width: 44ch;
  margin-top: 16px;
  font-size: 0.98rem;
}

.hero-actions {
  margin-top: 22px;
}

.hub-hero-visual {
  padding: 22px;
}

.ecosystem-node,
.ecosystem-core {
  gap: 8px;
  padding: 15px;
  border-radius: 20px;
}

.ecosystem-node strong,
.ecosystem-core strong {
  font-size: 1.05rem;
}

.ecosystem-node p,
.ecosystem-core p {
  font-size: 0.86rem;
  line-height: 1.45;
}

.ecosystem-node-upet {
  top: 22px;
  left: 22px;
  width: min(100%, 300px);
  min-height: 198px;
}

.ecosystem-node-sol {
  top: 78px;
  right: 22px;
  width: 204px;
}

.ecosystem-node-pool {
  right: 28px;
  bottom: 128px;
  width: 218px;
}

.ecosystem-node-cycling {
  left: 30px;
  bottom: 42px;
  width: 228px;
}

.ecosystem-core {
  width: 224px;
  padding: 18px;
}

.section-heading {
  margin-bottom: 18px;
}

.section-heading h2 {
  font-size: clamp(2.05rem, 4vw, 3.75rem);
  line-height: 1;
}

.section-heading p {
  margin-top: 14px;
}

.thesis-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(20px, 3.4vw, 42px);
  align-items: start;
}

.thesis-layout .section-heading {
  margin-bottom: 0;
}

.thesis-heading h2 {
  max-width: 10.8ch;
}

.thesis-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.thesis-card {
  min-height: 112px;
  padding: 16px;
}

.thesis-card h3 {
  margin-bottom: 8px;
}

.validation-section {
  padding-top: 18px;
}

.validation-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  gap: clamp(18px, 2.7vw, 34px);
  align-items: center;
  padding: clamp(20px, 2.7vw, 34px);
  border: 1px solid rgba(230, 211, 179, 0.14);
  border-radius: 30px;
  background:
    radial-gradient(circle at 16% 12%, rgba(214, 185, 138, 0.14), transparent 32%),
    radial-gradient(circle at 86% 76%, rgba(94, 231, 239, 0.08), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.052), rgba(255, 255, 255, 0.024)),
    rgba(9, 14, 27, 0.92);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.validation-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent, rgba(230, 211, 179, 0.08), transparent),
    linear-gradient(rgba(230, 211, 179, 0.035) 1px, transparent 1px);
  background-size: 100% 100%, 100% 42px;
  opacity: 0.44;
  pointer-events: none;
}

.validation-copy,
.validation-loop,
.validation-footnote {
  position: relative;
  z-index: 1;
}

.validation-copy {
  display: grid;
  gap: 12px;
}

.validation-copy h2 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(1.9rem, 3.7vw, 3.45rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
}

.validation-copy p {
  max-width: 58ch;
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.7;
}

.validation-loop {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(230, 211, 179, 0.12);
  border-radius: 24px;
  background: rgba(230, 211, 179, 0.12);
}

.validation-step {
  min-height: 164px;
  display: grid;
  align-content: space-between;
  gap: 20px;
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.052), rgba(255, 255, 255, 0.02)),
    rgba(10, 15, 28, 0.94);
}

.validation-step strong {
  color: var(--gold-soft);
  font-size: 1.02rem;
}

.validation-step span {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.55;
}

.validation-footnote {
  grid-column: 1 / -1;
  max-width: 74ch;
  margin: 0;
  color: rgba(236, 241, 248, 0.7);
  font-size: 0.92rem;
  line-height: 1.6;
}

.systems-grid {
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: var(--grid-gap);
  align-items: stretch;
}

.system-card {
  gap: 12px;
  padding: var(--card-padding);
}

.system-card-featured {
  grid-column: auto;
  grid-row: span 3;
  min-height: auto;
}

.system-card:not(.system-card-featured) {
  min-height: 0;
}

.system-card-top,
.system-card-body {
  gap: 9px;
}

.system-card-body h3 {
  font-size: clamp(1.5rem, 2.4vw, 2.05rem);
  line-height: 1;
}

.system-indicators,
.system-tags,
.upet-venture-pillbar {
  gap: 7px;
}

.system-indicators span,
.system-tags span,
.upet-venture-pillbar span {
  min-height: 25px;
  padding-inline: 9px;
  font-size: 0.72rem;
}

.system-actions {
  gap: 10px;
  align-self: end;
}

.split-layout-wide {
  gap: clamp(24px, 4vw, 46px);
}

.infrastructure-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0.01));
}

.infrastructure-grid {
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  border-radius: 24px;
  background: var(--border-soft);
}

.infrastructure-card {
  min-height: 76px;
  padding: 16px 18px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.infrastructure-card:hover {
  transform: none;
}

.upet-venture {
  grid-template-columns: minmax(0, 1.14fr) minmax(300px, 0.86fr);
  gap: 18px;
  padding: clamp(20px, 2.4vw, 28px);
}

.upet-venture-copy {
  gap: 14px;
}

.upet-venture-copy h2 {
  font-size: clamp(2.05rem, 4.2vw, 3.9rem);
  line-height: 1;
  max-width: 13.5ch;
}

.upet-venture-actions {
  gap: 10px;
  margin-top: 6px;
}

.upet-venture-visual {
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(94, 231, 239, 0.14);
  border-radius: 24px;
  background: rgba(94, 231, 239, 0.1);
}

.upet-feature-tile {
  min-height: 104px;
  padding: 14px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.upet-feature-tile span {
  margin-bottom: 8px;
}

.upet-feature-passport {
  min-height: 120px;
}

.timeline-stack {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 30px;
}

.timeline-step {
  grid-template-columns: 54px 1fr;
  gap: 14px;
  padding: 16px;
}

.timeline-index {
  font-size: 1rem;
}

.timeline-step h3 {
  margin-bottom: 5px;
}

.ecosystem-timeline {
  gap: 18px;
}

.ecosystem-path {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  border-radius: 24px;
  background: var(--border-soft);
}

.ecosystem-path-step {
  padding: 18px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.ecosystem-path-step::after {
  display: none;
}

.ecosystem-path-step:hover {
  transform: none;
}

.principles-labs-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.principle-labs-card {
  min-height: 104px;
  padding: 16px;
}

.founder-labs {
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  gap: 18px;
  padding: clamp(20px, 2.4vw, 26px);
}

.founder-labs-copy {
  gap: 12px;
}

.founder-labs-copy h2 {
  font-size: clamp(2rem, 3.8vw, 3.55rem);
  line-height: 1;
  max-width: 15ch;
}

.founder-card {
  padding: 20px;
  align-content: start;
}

.founder-card-top {
  gap: 12px;
}

.founder-card-actions {
  gap: 10px;
}

.final-cta-section {
  padding-top: 18px;
}

.final-cta-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(18px, 3vw, 40px);
  align-items: center;
  padding: clamp(24px, 3.2vw, 44px);
  border: 1px solid rgba(230, 211, 179, 0.18);
  border-radius: 30px;
  background:
    radial-gradient(circle at 12% 0%, rgba(214, 185, 138, 0.16), transparent 34%),
    radial-gradient(circle at 92% 100%, rgba(94, 231, 239, 0.07), transparent 28%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.024)),
    rgba(8, 12, 24, 0.94);
  box-shadow: var(--shadow-premium);
  overflow: hidden;
}

.final-cta-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(230, 211, 179, 0.16), transparent 32%, transparent 68%, rgba(94, 231, 239, 0.08)),
    linear-gradient(rgba(230, 211, 179, 0.025) 1px, transparent 1px);
  background-size: 100% 100%, 100% 48px;
  opacity: 0.55;
  pointer-events: none;
}

.final-cta-copy,
.final-cta-card .button {
  position: relative;
  z-index: 1;
}

.final-cta-copy {
  display: grid;
  gap: 14px;
}

.final-cta-copy h2 {
  max-width: 15ch;
  margin: 0;
  color: var(--text-primary);
  font-size: clamp(2rem, 4.2vw, 4.1rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.final-cta-copy p {
  max-width: 68ch;
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.7;
}

.final-cta-card .button {
  white-space: nowrap;
  min-height: 52px;
}

.share-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-soft);
}

.share-action {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 13px;
  border: 1px solid rgba(230, 211, 179, 0.12);
  border-radius: 999px;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.035);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: color var(--transition-premium), background var(--transition-premium), border-color var(--transition-premium), transform var(--transition-premium);
}

.share-action:hover {
  color: var(--gold-soft);
  border-color: var(--border-strong);
  background: rgba(230, 211, 179, 0.07);
  transform: translateY(-2px);
}

.share-action.is-copied {
  color: #070a12;
  background: linear-gradient(135deg, var(--gold-soft), var(--gold-primary));
  border-color: transparent;
}

.share-action .icon {
  width: 1em;
  height: 1em;
}

.social-icon-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.social-icon-link {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(230, 211, 179, 0.14);
  border-radius: 999px;
  color: var(--text-primary);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.022)),
    rgba(255, 255, 255, 0.035);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
  cursor: pointer;
  transition: transform var(--transition-premium), color var(--transition-premium), border-color var(--transition-premium), background var(--transition-premium);
}

.social-icon-link:hover {
  color: var(--gold-soft);
  border-color: var(--border-strong);
  background: rgba(230, 211, 179, 0.08);
  transform: translateY(-2px);
}

.social-icon-link.is-copied {
  color: #070a12;
  background: linear-gradient(135deg, var(--gold-soft), var(--gold-primary));
  border-color: transparent;
}

.social-icon-link .icon {
  width: 18px;
  height: 18px;
}

.footer-grid .social-icon-link {
  width: 42px;
  height: 42px;
  margin-bottom: 0;
}

.site-footer {
  padding: 24px 0 34px;
}

.footer-grid {
  gap: 14px;
  padding: 22px;
}

@media (max-width: 900px) {
  :root {
    --section-padding-desktop: var(--section-padding-tablet);
    --hero-min-height: auto;
  }

  .shell {
    width: min(100% - 32px, var(--content-max-width));
  }

  .hub-hero-grid,
  .thesis-layout,
  .validation-panel,
  .systems-grid,
  .upet-venture,
  .final-cta-card,
  .founder-labs {
    grid-template-columns: 1fr;
  }

  .validation-loop {
    grid-template-columns: 1fr;
  }

  .validation-step {
    min-height: auto;
    gap: 8px;
  }

  .system-card-featured {
    grid-row: auto;
  }

  .hub-hero-copy,
  .hub-hero-visual {
    min-height: auto;
  }

  .hub-hero-visual {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .hub-network-grid,
  .hub-network-lines {
    display: none;
  }

  .ecosystem-node,
  .ecosystem-core {
    position: relative;
    inset: auto;
    width: auto;
    min-height: 0;
    transform: none;
  }

  .ecosystem-core {
    grid-column: span 2;
  }
}

@media (max-width: 820px) {
  .hero-section,
  .section,
  .section-air {
    padding-top: var(--section-padding-tablet);
    padding-bottom: var(--section-padding-tablet);
  }

  .hub-hero-copy h1 {
    font-size: clamp(2.45rem, 10vw, 3.65rem);
    max-width: 12ch;
  }

  .hub-hero-visual {
    min-height: auto;
  }

  .section-heading h2,
  .upet-venture-copy h2,
  .founder-labs-copy h2 {
    max-width: 13ch;
  }

  .timeline-stack,
  .ecosystem-path,
  .principles-labs-grid {
    grid-template-columns: 1fr;
  }

  .system-featured-head,
  .system-featured-foot {
    display: grid;
  }

  .system-featured-modules {
    grid-template-columns: 1fr;
  }

  .system-featured-main h3 {
    font-size: clamp(3rem, 15vw, 4.6rem);
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 22px, var(--content-max-width));
  }

  .hero-section,
  .section,
  .section-air {
    padding-top: var(--section-padding-mobile);
    padding-bottom: var(--section-padding-mobile);
  }

  .hub-hero {
    padding-bottom: 22px;
  }

  .hub-hero + .section-air {
    padding-top: 24px;
  }

  .hub-hero-copy,
  .hub-hero-visual,
  .upet-venture,
  .final-cta-card,
  .founder-labs {
    padding: 14px;
  }

  .hub-hero-visual,
  .thesis-grid,
  .upet-venture-visual,
  .infrastructure-grid {
    grid-template-columns: 1fr;
  }

  .hub-hero-visual {
    display: none;
  }

  .thesis-grid,
  .upet-venture-visual {
    display: none;
  }

  .validation-section {
    padding-top: 16px;
  }

  .validation-panel {
    gap: 16px;
    padding: 16px;
    border-radius: 24px;
  }

  .validation-copy {
    gap: 10px;
  }

  .validation-copy h2 {
    max-width: 12.5ch;
    font-size: clamp(1.65rem, 7vw, 2.08rem);
  }

  .validation-copy p,
  .validation-footnote {
    font-size: 0.88rem;
    line-height: 1.55;
  }

  .validation-step {
    padding: 13px;
  }

  .validation-step span {
    display: none;
  }

  .ecosystem-core {
    grid-column: auto;
  }

  .hub-hero-copy h1 {
    max-width: 13ch;
    font-size: clamp(1.85rem, 8.5vw, 2.42rem);
    line-height: 1;
  }

  .hero-watermark-logo {
    width: 86px;
    opacity: 0.055;
  }

  .hub-hero-topline,
  .hero-upet-line {
    gap: 8px;
    margin-bottom: 12px;
  }

  .hero-upet-line p,
  .hero-microproof {
    font-size: 0.84rem;
    line-height: 1.45;
  }

  .hero-microproof,
  .hero-upet-line p {
    display: none;
  }

  .hero-subtitle {
    margin-top: 14px;
    font-size: 0.9rem;
  }

  .thesis-card,
  .principle-labs-card {
    min-height: auto;
  }

  .system-indicators,
  .system-tags {
    display: none;
  }

  .system-featured-modules {
    display: grid;
    gap: 8px;
  }

  .system-featured-module {
    min-height: auto;
    padding: 12px;
  }

  .system-featured-module p {
    display: none;
  }

  .system-featured-proof {
    display: none;
  }

  .system-featured-mark {
    width: 70px;
    opacity: 0.08;
  }

  .system-card:not(.system-card-featured) .system-card-body p:not(.system-category) {
    display: none;
  }

  .system-card:not(.system-card-featured) {
    gap: 10px;
  }

  .principles-labs-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .principle-labs-card {
    padding: 12px;
  }

  .principle-index {
    display: none;
  }

  .principle-labs-card h3 {
    font-size: 0.95rem;
    line-height: 1.25;
  }

  .founder-card-copy {
    display: none;
  }

  .final-cta-section {
    padding-top: 12px;
  }

  .final-cta-card {
    gap: 18px;
    border-radius: 24px;
  }

  .final-cta-copy h2 {
    max-width: 12.8ch;
    font-size: clamp(1.8rem, 8vw, 2.45rem);
  }

  .final-cta-copy p {
    font-size: 0.9rem;
    line-height: 1.55;
  }

  .final-cta-card .button {
    width: 100%;
  }

  .upet-venture-pillbar {
    gap: 6px;
  }

  .hero-actions {
    margin-top: 18px;
    gap: 8px;
  }

  .hub-hero-visual {
    gap: 8px;
    min-height: auto;
  }

  .ecosystem-node,
  .ecosystem-core {
    gap: 6px;
    padding: 12px;
  }

  .ecosystem-node p,
  .ecosystem-core p {
    display: none;
  }

  .section-heading h2,
  .upet-venture-copy h2,
  .founder-labs-copy h2 {
    font-size: clamp(2rem, 9vw, 2.75rem);
  }

  .system-actions-double,
  .founder-card-actions,
  .upet-venture-actions,
  .share-actions {
    grid-template-columns: 1fr;
    display: grid;
  }

  .upet-feature-passport {
    grid-column: auto;
  }

  .footer-grid {
    padding: 18px;
  }
}