:root {
  /* Color tokens */
  --color-primary: #6d28d9;
  --color-deep-violet: #3b0764;
  --color-electric-violet: #8b5cf6;
  --color-indigo: #2563eb;
  --color-cyan: #06b6d4;
  --color-emerald: #10b981;
  --color-warm: #f59e0b;
  --color-ink: #111827;
  --color-muted: #4b5563;
  --color-surface: #f8f7ff;
  --color-white: #ffffff;
  --color-border: rgba(109, 40, 217, 0.14);
  --color-dark-panel: rgba(17, 24, 39, 0.72);

  /* Typography tokens */
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --text-label: 0.78rem;
  --text-body: clamp(1rem, 1.5vw, 1.16rem);
  --text-lead: clamp(1.1rem, 2vw, 1.35rem);
  --text-card-title: clamp(1.12rem, 1.5vw, 1.28rem);
  --text-h2: clamp(2rem, 4vw, 4rem);
  --text-hero: clamp(3rem, 9vw, 6.5rem);

  /* Layout tokens */
  --content-width: 1120px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --section-space: clamp(72px, 9vw, 128px);

  /* Shape, shadow, and motion tokens */
  --radius-sm: 4px;
  --radius-card: 8px;
  --shadow-soft: 0 24px 70px rgba(59, 7, 100, 0.18);
  --shadow-card: 0 20px 52px rgba(17, 24, 39, 0.1);
  --transition-fast: 160ms ease;
  --transition-base: 220ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-white);
  font-family: var(--font-sans);
  line-height: 1.6;
}

a {
  color: inherit;
}

img,
svg {
  max-width: 100%;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--color-white);
  background: var(--color-deep-violet);
  border-radius: var(--radius-card);
  font-weight: 850;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform var(--transition-fast);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: 18px clamp(20px, 5vw, 56px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(16px);
}

.brand,
.site-nav,
.button-group {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  color: var(--color-ink);
  font-weight: 850;
  text-decoration: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
}

.site-nav {
  gap: clamp(12px, 2vw, 26px);
  color: var(--color-muted);
  font-size: 0.95rem;
  font-weight: 700;
  min-width: 0;
}

.site-nav a {
  position: relative;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 2px;
  background: var(--color-cyan);
  content: "";
  opacity: 0;
  transform: scaleX(0.7);
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: var(--color-primary);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-cta {
  color: var(--color-primary) !important;
}

.section {
  padding: var(--section-space) clamp(20px, 5vw, 56px);
  scroll-margin-top: 88px;
}

.section-muted {
  background:
    linear-gradient(180deg, rgba(248, 247, 255, 0.92), rgba(255, 255, 255, 0.72)),
    var(--color-surface);
}

.section-inner {
  width: min(100%, var(--content-width));
  margin: 0 auto;
}

.section-header {
  max-width: 840px;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-10);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1.1fr);
  gap: clamp(32px, 6vw, 76px);
  align-items: center;
}

.hero {
  min-height: calc(100vh - 74px);
  display: grid;
  align-items: center;
  color: var(--color-white);
  background:
    radial-gradient(circle at 78% 20%, rgba(6, 182, 212, 0.34), transparent 30%),
    radial-gradient(circle at 28% 12%, rgba(139, 92, 246, 0.48), transparent 28%),
    linear-gradient(135deg, var(--color-deep-violet), #1f1147 55%, #08111f);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: clamp(40px, 7vw, 88px);
  align-items: center;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow,
.badge,
.card-kicker {
  font-size: var(--text-label);
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--color-primary);
}

.hero .eyebrow,
.contact-section .eyebrow {
  color: var(--color-cyan);
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  color: var(--color-deep-violet);
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.24);
  border-radius: var(--radius-sm);
}

.badge-accent {
  color: #054354;
  background: rgba(6, 182, 212, 0.14);
  border-color: rgba(6, 182, 212, 0.3);
}

.badge + h2,
.badge + h3 {
  margin-top: var(--space-4);
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--color-ink);
  line-height: 1.05;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  color: var(--color-white);
  font-size: var(--text-hero);
}

h2 {
  max-width: 820px;
  font-size: var(--text-h2);
}

h3 {
  font-size: var(--text-card-title);
}

p {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--color-muted);
  font-size: var(--text-body);
}

.hero p,
.dark-panel p,
.contact-section p {
  color: rgba(255, 255, 255, 0.88);
}

.hero-summary {
  font-size: var(--text-lead);
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  max-width: 780px;
  margin: var(--space-10) 0 0;
  padding: 1px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.hero-proof div {
  min-width: 0;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
}

.hero-proof dt {
  color: var(--color-cyan);
  font-size: var(--text-label);
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-proof dd {
  margin: var(--space-2) 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.95rem;
  line-height: 1.35;
}

.button-group {
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.section-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: var(--space-8);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-card);
  cursor: pointer;
  font: inherit;
  font-weight: 850;
  text-decoration: none;
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    color var(--transition-base),
    transform var(--transition-base);
}

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

.button-primary {
  color: var(--color-white);
  background: var(--color-primary);
  box-shadow: 0 14px 34px rgba(109, 40, 217, 0.28);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--color-deep-violet);
  box-shadow: 0 18px 44px rgba(109, 40, 217, 0.34);
}

.button-secondary {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.08);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(255, 255, 255, 0.46);
  background: rgba(255, 255, 255, 0.14);
}

.button-outline {
  color: var(--color-primary);
  border-color: rgba(109, 40, 217, 0.26);
  background: var(--color-white);
}

.button-outline:hover,
.button-outline:focus-visible {
  color: var(--color-deep-violet);
  border-color: var(--color-primary);
  box-shadow: 0 14px 34px rgba(109, 40, 217, 0.14);
}

.card {
  min-height: 100%;
  padding: var(--space-6);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.card-kicker {
  display: block;
  margin-bottom: var(--space-3);
  color: var(--color-primary);
}

.card p {
  margin-top: var(--space-3);
  font-size: 1rem;
}

.accent-card {
  border-color: rgba(6, 182, 212, 0.28);
  background:
    linear-gradient(180deg, rgba(6, 182, 212, 0.08), rgba(255, 255, 255, 0.96)),
    var(--color-white);
}

.dark-panel {
  padding: clamp(28px, 4vw, 44px);
  color: var(--color-white);
  background:
    linear-gradient(135deg, rgba(109, 40, 217, 0.92), rgba(37, 99, 235, 0.72)),
    var(--color-dark-panel);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
}

.dark-panel h2,
.dark-panel h3 {
  color: var(--color-white);
}

.dark-panel .badge-accent,
.contact-card .badge-accent,
.product-screen .badge {
  color: #06242d;
  background: #a5f3fc;
  border-color: transparent;
}

.dark-panel .feature-list li {
  color: rgba(255, 255, 255, 0.9);
}

.feature-list {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  display: flex;
  gap: var(--space-3);
  color: var(--color-muted);
}

.feature-list li::before {
  width: 9px;
  height: 9px;
  margin-top: 0.55em;
  flex: 0 0 auto;
  background: var(--color-emerald);
  border-radius: 50%;
  content: "";
}

.process-strip,
.workflow-grid,
.principles-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-10);
}

.process-strip {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.process-strip article {
  padding: var(--space-4);
}

.process-strip span,
.workflow-item span {
  display: inline-flex;
  margin-bottom: var(--space-3);
  color: var(--color-primary);
  font-size: var(--text-label);
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.process-strip p,
.workflow-item p {
  margin-top: var(--space-2);
  font-size: 0.98rem;
}

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

.workflow-item {
  min-height: 100%;
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(6, 182, 212, 0.18);
  border-radius: var(--radius-card);
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1.15fr);
  gap: clamp(32px, 6vw, 76px);
  align-items: center;
}

.product-copy {
  max-width: 700px;
}

.product-points {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.product-points span {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 12px;
  color: var(--color-deep-violet);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 800;
}

.product-showcase {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(280px, 1fr);
  gap: var(--space-5);
  align-items: stretch;
}

.product-screen,
.product-flow-card,
.contact-card {
  padding: var(--space-6);
  border-radius: var(--radius-card);
}

.product-screen {
  min-height: 440px;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: var(--space-6);
  color: var(--color-white);
  background:
    radial-gradient(circle at 50% 14%, rgba(6, 182, 212, 0.34), transparent 26%),
    linear-gradient(160deg, var(--color-deep-violet), var(--color-primary));
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-soft);
}

.product-screen-header {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: space-between;
}

.product-status {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.84rem;
  font-weight: 800;
}

.proposal-card {
  align-self: center;
  margin: 0;
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-card);
}

.proposal-card span {
  display: inline-flex;
  margin-bottom: var(--space-3);
  color: var(--color-cyan);
  font-size: var(--text-label);
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.proposal-card h3,
.contact-card h3 {
  color: var(--color-white);
}

.proposal-card p {
  color: rgba(255, 255, 255, 0.9);
}

.product-flow-card {
  min-height: 440px;
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.product-flow {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: product-flow;
}

.product-flow li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: var(--space-3);
  align-items: center;
  color: var(--color-muted);
  font-weight: 750;
  counter-increment: product-flow;
}

.product-flow li::before {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary), var(--color-cyan));
  border-radius: 50%;
  font-size: 0.82rem;
  font-weight: 850;
  content: counter(product-flow);
}

.product-disclaimer {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: 0.92rem;
}

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

.hero-visual {
  position: relative;
  min-height: 420px;
}

.signal-card {
  position: absolute;
  width: min(78%, 360px);
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.11);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
  z-index: 1;
}

.signal-card:hover,
.signal-card:focus-visible {
  border-color: rgba(255, 255, 255, 0.36);
  box-shadow: 0 28px 84px rgba(6, 182, 212, 0.26);
  transform: translateY(-8px) scale(1.02);
  z-index: 5;
}

.signal-card span {
  display: block;
  color: var(--color-cyan);
  font-size: var(--text-label);
  font-weight: 850;
  text-transform: uppercase;
}

.signal-card strong {
  display: block;
  margin-top: 8px;
  color: var(--color-white);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.08;
}

.signal-card small {
  display: block;
  margin-top: var(--space-3);
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.92rem;
  line-height: 1.45;
}

.signal-card-primary {
  top: 20px;
  left: 8%;
  z-index: 2;
}

.signal-card-secondary {
  top: 150px;
  right: 0;
  z-index: 3;
}

.signal-card-tertiary {
  bottom: 18px;
  left: 0;
  z-index: 2;
}

.contact-section {
  color: var(--color-white);
  background:
    radial-gradient(circle at 85% 16%, rgba(245, 158, 11, 0.24), transparent 28%),
    linear-gradient(135deg, var(--color-deep-violet), var(--color-primary));
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.85fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}

.contact-section h2 {
  color: var(--color-white);
}

.contact-hint {
  max-width: 620px;
  font-size: 0.98rem;
}

.contact-card {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow-soft);
}

.contact-card .feature-list li {
  color: rgba(255, 255, 255, 0.9);
}

.site-footer {
  padding: 44px clamp(20px, 5vw, 56px) 28px;
  background: #070815;
}

.site-footer p {
  max-width: 520px;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.92rem;
}

.footer-inner {
  display: flex;
  width: min(100%, var(--content-width));
  margin: 0 auto;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-8);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-3);
  color: var(--color-white);
  font-size: 1.12rem;
  font-weight: 850;
  text-decoration: none;
}

.footer-brand-mark {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-4);
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.94rem;
  font-weight: 750;
}

.footer-nav a {
  text-decoration: none;
}

.footer-nav a:hover,
.footer-nav a:focus-visible,
.footer-brand:hover,
.footer-brand:focus-visible {
  color: var(--color-cyan);
}

.footer-legal {
  width: min(100%, var(--content-width));
  max-width: none !important;
  margin: var(--space-8) auto 0 !important;
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

:focus-visible {
  outline: 3px solid var(--color-warm);
  outline-offset: 4px;
}

@media (max-width: 900px) {
  .section-grid,
  .split-layout,
  .contact-layout,
  .process-strip,
  .workflow-grid,
  .principles-grid,
  .product-layout,
  .product-showcase {
    grid-template-columns: 1fr;
  }

  .site-header,
  .site-nav {
    align-items: center;
  }

  .site-header {
    position: sticky;
    flex-direction: row;
    gap: var(--space-4);
    padding: 14px clamp(16px, 4vw, 28px);
  }

  .site-nav {
    flex: 1;
    justify-content: flex-start;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0 0 8px;
    scrollbar-width: none;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav a {
    flex: 0 0 auto;
  }

  .hero {
    min-height: auto;
  }

  .hero-layout {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 360px;
  }

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

  .footer-inner {
    flex-direction: column;
  }

  .footer-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .site-nav {
    gap: 18px;
    font-size: 0.9rem;
  }

  .brand span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .button-group {
    align-items: stretch;
    flex-direction: column;
  }

  .section-cta {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .signal-card {
    position: relative;
    inset: auto;
    width: 100%;
    margin-top: 14px;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}