:root {
  --bg-primary: #F5F0EB;
  --bg-alt: #EDE7DF;
  --bg-card: #FFFFFF;
  --bg-footer: #1C1917;

  --text-primary: #191919;
  --text-secondary: #5C5650;
  --text-muted: #9B9B9B;

  --accent: #2A8C82;
  --accent-light: #CCFBF1;
  --accent-dim: rgba(42, 140, 130, 0.08);


  --border-color: rgba(0, 0, 0, 0.06);

  --font-body: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-2xl: 8rem;
  --space-3xl: 12rem;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --max-width: 1200px;
  --header-height: 64px;

  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
}

html {
  background: var(--bg-footer);
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.65;
  animation: page-enter 0.35s ease backwards;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ─── Focus States ─────────────────────────────────────── */

:focus-visible {
  outline: 2px solid var(--text-primary);
  outline-offset: 2px;
}

/* ─── Logo Invert ───────────────────────────────────────── */

.logo-invert {
  filter: invert(1);
}

/* ─── Scroll Reveal ─────────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(20px) scale(0.97);
  transition: opacity 0.6s cubic-bezier(0.25, 0.1, 0.25, 1), transform 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }

/* ─── Section Layout ────────────────────────────────────── */

.section {
  padding: var(--space-3xl) 0;
}

.section--alt {
  background: var(--bg-alt);
}

.hl {
  background-image: linear-gradient(rgba(42, 140, 130, 0.35), rgba(42, 140, 130, 0.35));
  background-size: 100% 30%;
  background-repeat: no-repeat;
  background-position: 0 90%;
}

.hl-rest {
  font-size: 0.72em;
  vertical-align: middle;
  opacity: 0;
}

.hl-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(42, 140, 130, 0.22);
  border-radius: 50%;
  width: 1.3em;
  height: 1.3em;
  vertical-align: middle;
  margin-right: 0.08em;
  opacity: 0;
}

@keyframes uqt-circle-pop {
  from { opacity: 0; transform: scale(0.3); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes uqt-word-in {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}

.reveal.visible .hl-circle {
  animation: uqt-circle-pop 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.reveal.visible .hl-rest {
  animation: uqt-word-in 0.3s ease forwards;
}

.hl-full {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Crect width='100%25' height='100%25' rx='50' ry='50' fill='%232A8C82' fill-opacity='0.22'/%3E%3C/svg%3E");
  background-size: 100% 1.1em;
  background-repeat: no-repeat;
  background-position: 0 90%;
  padding: 0 0.15em;
}

.accent {
  color: var(--accent);
}

.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section__label {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.section__heading {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.section__heading--center {
  text-align: center;
}

.section__subheading {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: var(--space-2xl);
  line-height: 1.65;
}

.section__subheading--center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* ─── Header ────────────────────────────────────────────── */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background: var(--bg-primary);
  transition: box-shadow var(--transition-base), background-color var(--transition-base);
}

.header--scrolled {
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.header__logo img {
  width: 40px;
  height: auto;
}

.header__logo span {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  text-transform: uppercase;
}

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

.header__nav a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.header__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.header__menu-btn span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* ─── Mobile Nav ────────────────────────────────────────── */

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-overlay--open {
  opacity: 1;
  pointer-events: all;
}

.mobile-overlay__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.mobile-overlay__nav a {
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.mobile-overlay__nav a:hover {
  color: var(--text-primary);
}

/* ─── Hero ──────────────────────────────────────────────── */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--header-height) + var(--space-3xl)) var(--space-lg) var(--space-3xl);
}

.hero__inner {
  max-width: 920px;
}

.hero__tagline {
  font-size: clamp(2.75rem, 8vw, 5.5rem);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  line-height: 1.1;
  letter-spacing: -0.05em;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ─── Problem Section ───────────────────────────────────── */

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.problem-card {
  padding: 2rem 2rem 2rem 2.25rem;
  border-left: 3px solid var(--text-muted);
  position: relative;
  transition: border-color var(--transition-base), background var(--transition-base);
}

.problem-card:hover {
  background: rgba(0, 0, 0, 0.02);
}

.problem-card--cost,
.problem-card--privacy,
.problem-card--reliability { border-left-color: var(--accent); }

.problem-card__icon {
  width: 28px;
  height: 28px;
  color: var(--accent);
  margin-bottom: 1rem;
}

.problem-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}


.problem-card__text {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-primary);
}

/* ─── Breakthrough Section ──────────────────────────────── */

.innovations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.innovation {
  background: var(--bg-card);
  padding: 2.5rem;
  border-radius: var(--radius-md);
  border-top: 2px solid transparent;
  transition: box-shadow 0.4s ease, border-color 0.4s ease, transform 0.4s ease;
}

.innovation:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  border-top-color: var(--accent);
  transform: translateY(-2px);
}

.innovation__number {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1.25rem;
  font-variant-numeric: tabular-nums;
}

.innovation__title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.innovation__text {
  font-size: 1rem;
  line-height: 1.75;
}

.equation {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  position: relative;
}

.equation::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 1px;
  background: var(--border-color);
}

.equation__formula {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 500;
  line-height: 1;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.35em;
  letter-spacing: -0.03em;
}

.equation__formula .num-white {
  color: var(--text-primary);
  font-weight: 300;
}

.equation__formula .op {
  color: var(--text-muted);
  font-weight: 200;
  font-size: 0.65em;
}

.equation__formula .num-green {
  color: var(--accent);
  font-weight: 600;
}

.equation__label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.equation__result {
  font-size: 1.35rem;
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.equation__note {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  max-width: 520px;
  margin: var(--space-md) auto 0;
  line-height: 1.7;
}

/* ─── Results Section ───────────────────────────────────── */

.results-grid--hero {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-xl);
}

/* ─── Quantum Triple Outline ─────────────────────────────── */
/* ─── Quantum Wave Motif ─────────────────────────────────── */
.metric-card,
.team-card,
.blog-preview-card,
.innovation,
.demo-card {
  position: relative;
}

.metric-card::before,
.team-card::before,
.blog-preview-card::before,
.innovation::before,
.demo-card::before {
  content: '';
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  width: 1.75rem;
  height: 14px;
  background-image:
    linear-gradient(var(--accent), var(--accent)),
    linear-gradient(var(--accent), var(--accent)),
    linear-gradient(var(--accent), var(--accent));
  background-size: 100% 2px, 68% 2px, 36% 2px;
  background-position: 0 0, 0 6px, 0 12px;
  background-repeat: no-repeat;
  opacity: 0.3;
  pointer-events: none;
}

.metric-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  text-align: center;
  border: 1px solid transparent;
  transition: box-shadow 0.4s ease, border-color 0.4s ease, transform 0.4s ease;
}

.metric-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  border-color: rgba(42, 140, 130, 0.2);
  transform: translateY(-2px);
}

.metric-card--primary {
  max-width: 560px;
  width: 100%;
  padding: 3rem;
  border-top: 3px solid var(--accent);
}

.metric-card__status {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-md);
}

.metric-card__status--demonstrated {
  background: var(--accent-light);
  color: var(--accent);
}

.metric-card__label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.metric-card__number {
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 600;
  line-height: 1;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.metric-card__desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.metric-card__detail {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: var(--space-md);
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}

.results-supporting {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.results-supporting__item {
  text-align: center;
  padding: var(--space-lg);
}

.results-supporting__number {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

.results-supporting__text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.roadmap-bar {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  border-left: 3px solid var(--accent);
}

.roadmap-bar__heading {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.roadmap-bar__text {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.paper-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  background: var(--text-primary);
  border: none;
  border-radius: var(--radius-pill);
  color: var(--bg-primary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: opacity var(--transition-fast);
  margin-top: var(--space-lg);
}

.paper-link:hover {
  opacity: 0.85;
}

.paper-link svg {
  width: 18px;
  height: 18px;
  stroke: var(--bg-primary);
}

/* ─── Demo Section ─────────────────────────────────────── */

.demo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.demo-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.demo-card__header {
  padding: 2rem 2rem 1rem;
}

.demo-card__title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.demo-card__subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.demo-card__terminal {
  background: #1a1a2e;
  margin: 0 1.25rem;
  border-radius: 8px;
  padding: 1.5rem;
  height: 280px;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.8rem;
  line-height: 1.7;
  color: #e0e0e0;
  position: relative;
  overflow: hidden;
  white-space: pre-wrap;
  word-break: break-word;
}

.demo-cursor {
  display: inline;
  border-right: 2px solid var(--accent);
  animation: blink 1s step-end infinite;
  margin-left: 1px;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.demo-card__footer {
  padding: 1rem 2rem 1.5rem;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.demo-stat {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.demo-stat--accent {
  color: var(--accent);
}

#demoLanguage {
  color: #a7f3d0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.demo-text-wrap {
  white-space: pre-wrap;
  word-break: break-word;
}

#demoAutoencoder {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.ae-pairs {
  display: flex;
  flex-direction: column;
}

.ae-pair {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.4rem;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.ae-pair.visible {
  opacity: 1;
  transform: translateY(0);
}

.ae-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #888;
  width: 3.5rem;
  flex-shrink: 0;
}

.ae-tokens {
  display: flex;
  gap: 0.35rem;
}

.ae-token {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.ae-token--input {
  background: rgba(42, 140, 130, 0.15);
  color: #7dd3c8;
}

.ae-token--output {
  background: rgba(42, 140, 130, 0.25);
  color: #a7f3d0;
}

.ae-token--op {
  color: #888;
  background: none;
  padding: 0;
}

.ae-check {
  color: #4ade80;
  font-size: 0.85rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.ae-check.visible {
  opacity: 1;
}

.ae-divider {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin: 0.5rem 0;
}

/* ─── Team Section ──────────────────────────────────────── */

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.team-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  border-bottom: 3px solid var(--accent);
  transition: box-shadow 0.3s ease;
}

.team-card__header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: var(--space-lg);
}

.team-card__photo {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  flex-shrink: 0;
}

.team-card__name {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.team-card__role {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0;
}

.team-card__links {
  display: flex;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.team-card__social {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.team-card__social:hover {
  color: var(--accent);
}

.team-card__social svg {
  display: inline-block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  fill: currentColor;
}

.team-card__credentials {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.team-card__credential {
  font-size: 0.95rem;
  line-height: 1.65;
  padding-left: 1.25rem;
  position: relative;
}

.team-card__credential::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
}

/* ─── Blog Preview Cards (Landing Page) ─────────────────── */

.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.blog-preview-card {
  display: block;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: transform var(--transition-fast), box-shadow 0.3s ease;
}

.blog-preview-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.blog-preview-card__meta {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.blog-preview-card__title {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.blog-preview-card__excerpt {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.blog-preview-card__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.blog-preview-card:hover .blog-preview-card__link {
  text-decoration: underline;
}

/* ─── CTA Section ──────────────────────────────────────── */

.cta-section {
  padding: var(--space-3xl) var(--space-lg);
  border-top: 1px solid var(--border-color);
}

.cta-section__inner {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.cta-section__heading {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.cta-section__text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 540px;
  margin: 0 auto var(--space-xl);
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.95rem 2rem;
  background: var(--text-primary);
  border: none;
  border-radius: var(--radius-pill);
  color: var(--bg-primary);
  font-weight: 500;
  font-size: 1rem;
  transition: opacity var(--transition-fast);
}

.cta-primary:hover {
  opacity: 0.85;
}

.cta-primary svg {
  stroke: var(--bg-primary);
}

.cta-secondary {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

/* ─── Hero CTA ─────────────────────────────────────────── */

.hero__cta-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}

.hero__cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  background: var(--text-primary);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: 0.95rem;
  transition: opacity var(--transition-fast);
}

.hero__cta-primary:hover {
  opacity: 0.85;
}

.hero__cta-primary svg {
  width: 16px;
  height: 16px;
}

.hero__cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: var(--radius-pill);
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.hero__cta-secondary:hover {
  border-color: rgba(0, 0, 0, 0.25);
  background: var(--bg-card);
}

.hero__cta-secondary svg {
  width: 16px;
  height: 16px;
}

/* ─── Team card hover ──────────────────────────────────── */

.team-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

/* ─── Market Context ───────────────────────────────────── */

.market-context {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
  line-height: 1.75;
  max-width: 720px;
  font-style: italic;
}

/* ─── Footer ────────────────────────────────────────────── */

.footer {
  background: var(--bg-footer);
  padding: 3rem var(--space-lg) 2.5rem;
}

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

.footer__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: var(--space-md);
}

.footer__logo img {
  width: 28px;
  height: auto;
  filter: brightness(0) invert(1);
}

.footer__logo span {
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.9);
  text-transform: uppercase;
}

.footer__desc {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
}

.footer__heading {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-md);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__links a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.45);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: rgba(255, 255, 255, 0.9);
}

.footer__links a[href^="mailto"] {
  font-weight: 500;
}

.footer__contact-text {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.3);
  line-height: 1.6;
}

.footer__bottom {
  max-width: var(--max-width);
  margin: 1.5rem auto 0;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

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

.footer__social-link {
  color: rgba(255, 255, 255, 0.3);
  transition: color var(--transition-fast);
  line-height: 1;
}

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

.footer__social-link svg {
  width: 16px;
  height: 16px;
  display: inline-block;
  fill: currentColor;
}

.footer__copyright {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.3);
  text-align: center;
}

/* ─── Blog Page Styles ──────────────────────────────────── */

.blog-header {
  padding: calc(var(--header-height) + var(--space-3xl)) var(--space-lg) var(--space-xl);
  text-align: center;
}

.blog-header__title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.blog-header__subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
}

.blog-article {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg) var(--space-3xl);
}

.blog-article__meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.blog-article__title {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xl);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.blog-article__lede {
  font-size: 1.15rem;
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.blog-article h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--space-2xl) 0 var(--space-md);
}

.blog-article p {
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.blog-article ul {
  margin-bottom: var(--space-lg);
  padding-left: 1.5rem;
}

.blog-article li {
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: var(--space-sm);
  position: relative;
}

.blog-article li::before {
  content: '';
  position: absolute;
  left: -1rem;
  top: 0.75em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
}

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

.blog-article em {
  color: var(--text-muted);
}

.blog-article figure {
  margin: var(--space-xl) 0;
}

.blog-article figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  display: block;
}

.blog-article figcaption {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: var(--space-sm);
  line-height: 1.6;
}

.blog-article__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  background: var(--text-primary);
  border: none;
  border-radius: var(--radius-pill);
  color: var(--bg-primary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: opacity var(--transition-fast);
  margin-top: var(--space-md);
}

.blog-article__cta:hover {
  opacity: 0.85;
}

.blog-article__cta svg {
  stroke: var(--bg-primary);
}

/* ─── Responsive ────────────────────────────────────────── */

@media (max-width: 1023px) {
  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }

  .innovations-grid,
  .problem-grid {
    grid-template-columns: 1fr 1fr;
  }

  .results-supporting {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .header__nav {
    display: none;
  }

  .header__menu-btn {
    display: flex;
  }

  .section {
    padding: 5rem 0;
  }

  .section__inner {
    padding: 0 1.25rem;
  }

  .innovations-grid,
  .problem-grid,
  .blog-grid,
  .demo-grid {
    grid-template-columns: 1fr;
  }

  .results-supporting {
    grid-template-columns: 1fr;
  }

  .cta-actions {
    flex-direction: column;
    gap: var(--space-md);
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

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

  .equation__formula {
    font-size: 2.5rem;
  }

  .innovation,
  .metric-card {
    padding: 2rem 1.5rem;
  }

  .hero__cta-group {
    flex-direction: column;
    align-items: center;
  }
}

/* ─── Utility ───────────────────────────────────────────── */

.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }

.body--no-scroll {
  overflow: hidden;
}

/* ─── Page Enter Animation ──────────────────────────────── */

@keyframes page-enter {
  from { opacity: 0; }
  to   { opacity: 1; }
}


/* ─── Scroll Progress Bar ───────────────────────────────── */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform-origin: left center;
  transform: scaleX(0);
  z-index: 1001;
  pointer-events: none;
}

/* ─── Header Controls + Theme Toggle ────────────────────── */

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

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.05);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  display: none;
}

[data-theme="light"] .theme-toggle .icon-moon,
:root:not([data-theme]) .theme-toggle .icon-moon { display: block; }
[data-theme="dark"]  .theme-toggle .icon-sun     { display: block; }

/* ─── Dark Mode Variables ────────────────────────────────── */

[data-theme="dark"] {
  --bg-primary:     #131110;
  --bg-alt:         #1A1815;
  --bg-card:        #1E1C19;
  --bg-footer:      #0B0A09;
  --text-primary:   #EDE8E3;
  --text-secondary: #9A938D;
  --text-muted:     #6A6460;
  --accent:         #2A8C82;
  --accent-light:   rgba(42, 140, 130, 0.18);
  --accent-dim:     rgba(42, 140, 130, 0.12);
  --border-color:   rgba(255, 255, 255, 0.07);
}

[data-theme="dark"] .header--scrolled {
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

/* Header logo: invert so dark logo stays visible on dark bg */
[data-theme="dark"] .header__logo img {
  filter: invert(1);
}

/* Borders and interactive states tuned for dark bg */
[data-theme="dark"] .hero__cta-secondary {
  border-color: rgba(255, 255, 255, 0.12);
}

[data-theme="dark"] .hero__cta-secondary:hover {
  border-color: rgba(255, 255, 255, 0.25);
  background: var(--bg-card);
}

[data-theme="dark"] .theme-toggle:hover {
  background: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .problem-card:hover {
  background: rgba(255, 255, 255, 0.02);
}

[data-theme="dark"] .innovation:hover {
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.45);
}