:root {
  color-scheme: light dark;
  --spillSurface: #fafbfc;
  --spillSurfaceRaised: #ffffff;
  --spillFoam: #edf3f7;
  --spillStill: #d8e1e8;
  --spillInk: #0e1620;
  --spillInkMuted: #4b5763;
  --spillInkFaint: #8795a2;
  --spillDeep: #0c3d62;
  --spillCurrent: #2e77a8;
  --spillEbb: #8f4a4a;
  --spillBorder: rgba(216, 225, 232, 0.72);
  --spillFocus: rgba(12, 61, 98, 0.82);
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 2rem;
  --space-8: 3rem;
  --space-9: 4.5rem;
  --radius-chip: 0.375rem;
  --radius-control: 0.625rem;
  --radius-panel: 0.875rem;
  --radius-pill: 999px;
  --shadow-soft: 0 28px 80px rgba(12, 61, 98, 0.08);
  --shadow-panel: 0 18px 40px rgba(12, 61, 98, 0.12);
  --container: min(76rem, calc(100vw - 2rem));
  --container-narrow: min(56rem, calc(100vw - 2rem));
  --font-sans: "SF Pro Text", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SF Mono", "SFMono-Regular", ui-monospace, SFMono-Regular, Menlo, monospace;
  --transition: 220ms ease;
}

@media (prefers-color-scheme: dark) {
  :root {
    --spillSurface: #0b0e11;
    --spillSurfaceRaised: #141820;
    --spillFoam: #1b222b;
    --spillStill: #263038;
    --spillInk: #eef2f6;
    --spillInkMuted: #8e99a4;
    --spillInkFaint: #5a6572;
    --spillDeep: #6fb2dd;
    --spillCurrent: #4e9ed0;
    --spillEbb: #c08a8a;
    --spillBorder: rgba(38, 48, 56, 0.82);
    --spillFocus: rgba(111, 178, 221, 0.78);
    --shadow-soft: 0 28px 80px rgba(0, 0, 0, 0.34);
    --shadow-panel: 0 18px 44px rgba(0, 0, 0, 0.42);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--spillInk);
  background:
    radial-gradient(circle at top right, rgba(46, 119, 168, 0.12), transparent 32%),
    radial-gradient(circle at top left, rgba(237, 243, 247, 0.92), transparent 26%),
    var(--spillSurface);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

@media (prefers-color-scheme: dark) {
  body {
    background:
      radial-gradient(circle at top right, rgba(78, 158, 208, 0.16), transparent 32%),
      radial-gradient(circle at top left, rgba(27, 34, 43, 0.72), transparent 24%),
      var(--spillSurface);
  }
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--spillDeep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--spillCurrent);
}

button,
a.button {
  cursor: pointer;
}

::selection {
  background: rgba(46, 119, 168, 0.18);
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: var(--space-4);
  z-index: 1000;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-control);
  background: var(--spillSurfaceRaised);
  color: var(--spillInk);
  transform: translateY(-160%);
  transition: transform var(--transition);
}

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

:focus-visible {
  outline: 2px solid var(--spillFocus);
  outline-offset: 3px;
}

.site-shell {
  position: relative;
  overflow: clip;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: color-mix(in srgb, var(--spillSurface) 86%, transparent);
  border-bottom: 1px solid rgba(216, 225, 232, 0.32);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    border-bottom-color: rgba(38, 48, 56, 0.48);
  }
}

.nav {
  width: var(--container);
  margin: 0 auto;
  min-height: 4.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: inherit;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  box-shadow: inset 0 0 0 1px rgba(216, 225, 232, 0.56);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(237, 243, 247, 0.88));
  padding: 0.4rem;
}

@media (prefers-color-scheme: dark) {
  .brand-mark {
    box-shadow: inset 0 0 0 1px rgba(38, 48, 56, 0.78);
    background: linear-gradient(180deg, rgba(20, 24, 32, 0.92), rgba(27, 34, 43, 0.92));
  }
}

.nav-links,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.3rem;
  align-items: center;
}

.nav-links a,
.footer-links a {
  color: var(--spillInkMuted);
  text-decoration: none;
  font-size: 0.96rem;
}

.nav-links a:hover,
.footer-links a:hover {
  color: var(--spillInk);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.78rem 1.15rem;
  border-radius: var(--radius-pill);
  background: var(--spillDeep);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(12, 61, 98, 0.2);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

@media (prefers-color-scheme: dark) {
  .nav-cta {
    color: #081018;
  }
}

.nav-cta:hover,
.button-primary:hover {
  transform: translateY(-1px);
  background: var(--spillCurrent);
  box-shadow: 0 16px 30px rgba(46, 119, 168, 0.24);
}

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

.button-primary,
.button-secondary,
.button-tertiary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 3rem;
  padding: 0.9rem 1.2rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}

.button-primary {
  color: #fff;
  background: var(--spillDeep);
  box-shadow: 0 10px 24px rgba(12, 61, 98, 0.18);
}

@media (prefers-color-scheme: dark) {
  .button-primary {
    color: #081018;
  }
}

.button-secondary,
.button-tertiary {
  color: var(--spillInk);
  background: rgba(255, 255, 255, 0.4);
  border: 1px solid var(--spillBorder);
}

@media (prefers-color-scheme: dark) {
  .button-secondary,
  .button-tertiary {
    background: rgba(20, 24, 32, 0.55);
  }
}

.button-secondary:hover,
.button-tertiary:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--spillCurrent) 48%, var(--spillBorder));
  background: color-mix(in srgb, var(--spillFoam) 72%, transparent);
}

.button-tertiary {
  border-radius: var(--radius-control);
}

.page-main {
  width: var(--container);
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: var(--space-8);
  padding: clamp(3rem, 7vw, 6rem) 0 var(--space-9);
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--spillInkMuted);
}

.eyebrow::before {
  content: "";
  width: 2.5rem;
  height: 1px;
  background: color-mix(in srgb, var(--spillCurrent) 28%, var(--spillStill));
}

.hero h1 {
  margin: 1rem 0 1.2rem;
  max-width: 11ch;
  font-size: clamp(3rem, 7vw, 5.3rem);
  line-height: 0.96;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.lede,
.section-intro,
.utility-lede {
  max-width: 38rem;
  font-size: 1.1rem;
  color: var(--spillInkMuted);
}

.download-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  margin-top: var(--space-3);
  color: var(--spillInkMuted);
  font-size: 0.94rem;
}

.pill,
.trust-pill,
.version-chip,
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 2rem;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--spillBorder);
  color: var(--spillInkMuted);
  font-size: 0.88rem;
}

@media (prefers-color-scheme: dark) {
  .pill,
  .trust-pill,
  .version-chip,
  .tag {
    background: rgba(20, 24, 32, 0.78);
  }
}

.version-chip {
  color: var(--spillDeep);
  border-color: color-mix(in srgb, var(--spillCurrent) 35%, var(--spillBorder));
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: var(--space-6);
}

.hero-stage {
  position: relative;
  min-height: 37rem;
}

.hero-halo {
  position: absolute;
  inset: auto auto 16% 10%;
  width: min(100%, 32rem);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 119, 168, 0.22), transparent 66%);
  filter: blur(24px);
}

.hero-card {
  position: absolute;
  width: min(100%, 30rem);
  border-radius: 1.6rem;
  overflow: hidden;
  border: 1px solid rgba(216, 225, 232, 0.72);
  box-shadow: var(--shadow-panel);
}

@media (prefers-color-scheme: dark) {
  .hero-card {
    border-color: rgba(38, 48, 56, 0.82);
  }
}

.hero-card--primary {
  top: 3%;
  right: 2%;
  transform: rotate(-3deg);
}

.hero-card--secondary {
  left: 0;
  top: 38%;
  width: min(88%, 24rem);
  transform: rotate(4deg);
}

.hero-card--tertiary {
  right: 0;
  bottom: 0;
  width: min(76%, 18rem);
  transform: rotate(7deg);
}

.hero-note {
  position: absolute;
  left: 4%;
  bottom: 12%;
  width: min(17rem, 46%);
  padding: 1rem 1rem 1.1rem;
  border-radius: 1rem;
  background: color-mix(in srgb, var(--spillSurfaceRaised) 90%, transparent);
  border: 1px solid var(--spillBorder);
  box-shadow: var(--shadow-soft);
}

.hero-note strong {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--spillInkFaint);
}

.section {
  padding: var(--space-9) 0;
  border-top: 1px solid rgba(216, 225, 232, 0.46);
}

@media (prefers-color-scheme: dark) {
  .section {
    border-top-color: rgba(38, 48, 56, 0.56);
  }
}

.section-head {
  display: grid;
  gap: var(--space-3);
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section h2,
.utility-shell h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.section-kicker {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--spillInkFaint);
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.step-card,
.feature-card,
.trust-card,
.proof-caption,
.utility-card,
.cta-panel,
.faq-item {
  background: color-mix(in srgb, var(--spillSurfaceRaised) 92%, transparent);
  border: 1px solid var(--spillBorder);
  border-radius: 1.25rem;
  box-shadow: var(--shadow-soft);
}

.step-card,
.feature-card,
.trust-card,
.utility-card,
.proof-caption,
.cta-panel {
  padding: 1.4rem;
}

.step-card strong,
.feature-card strong,
.trust-card strong,
.utility-card strong,
.proof-caption strong {
  display: block;
  margin-bottom: 0.6rem;
  font-size: 1.08rem;
  letter-spacing: -0.02em;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  margin-bottom: 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--spillDeep);
  background: color-mix(in srgb, var(--spillFoam) 88%, transparent);
}

.feature-layout,
.proof-grid,
.trust-grid,
.cta-layout,
.utility-grid {
  display: grid;
  gap: var(--space-4);
}

.feature-layout {
  grid-template-columns: 1.15fr 0.85fr;
}

.feature-stack {
  display: grid;
  gap: var(--space-4);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  align-content: start;
}

.feature-card:nth-child(2),
.feature-card:nth-child(5) {
  transform: translateY(1.2rem);
}

.feature-card p,
.step-card p,
.trust-card p,
.utility-card p,
.proof-caption p,
.cta-panel p,
.faq-item p,
.footer-note,
.meta-list,
.list-note {
  margin: 0;
  color: var(--spillInkMuted);
}

.panel-frame,
.proof-visual {
  overflow: hidden;
  border-radius: 1.35rem;
  border: 1px solid var(--spillBorder);
  background: color-mix(in srgb, var(--spillSurfaceRaised) 92%, transparent);
  box-shadow: var(--shadow-panel);
}

.proof-grid {
  grid-template-columns: 1.08fr 0.92fr;
  align-items: start;
}

.proof-stack {
  display: grid;
  gap: var(--space-4);
}

.proof-caption {
  display: grid;
  gap: 0.45rem;
}

.proof-caption span,
.trust-list li span,
.footer-note span {
  color: var(--spillInkFaint);
}

.trust-grid {
  grid-template-columns: 1.1fr 0.9fr;
}

.trust-list,
.meta-list,
.faq-list,
.utility-list {
  display: grid;
  gap: 0.95rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.trust-list li,
.utility-list li {
  display: grid;
  gap: 0.28rem;
  padding-bottom: 0.95rem;
  border-bottom: 1px solid rgba(216, 225, 232, 0.56);
}

.trust-list li:last-child,
.utility-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

@media (prefers-color-scheme: dark) {
  .trust-list li,
  .utility-list li {
    border-bottom-color: rgba(38, 48, 56, 0.62);
  }
}

.meta-list {
  gap: 0.7rem;
}

.meta-list code {
  font-family: var(--font-mono);
  font-size: 0.86rem;
}

.faq-list {
  gap: var(--space-3);
}

.faq-item {
  padding: 0;
  overflow: clip;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.1rem 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item[open] summary {
  border-bottom: 1px solid rgba(216, 225, 232, 0.56);
}

@media (prefers-color-scheme: dark) {
  .faq-item[open] summary {
    border-bottom-color: rgba(38, 48, 56, 0.62);
  }
}

.faq-item p {
  padding: 0 1.25rem 1.2rem;
}

.cta-layout {
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
}

.cta-panel {
  display: grid;
  gap: var(--space-4);
}

.site-footer {
  width: var(--container);
  margin: 0 auto;
  padding: var(--space-7) 0 var(--space-8);
  border-top: 1px solid rgba(216, 225, 232, 0.46);
  display: grid;
  gap: var(--space-4);
}

@media (prefers-color-scheme: dark) {
  .site-footer {
    border-top-color: rgba(38, 48, 56, 0.56);
  }
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  align-items: start;
}

.footer-note {
  max-width: 38rem;
  font-size: 0.96rem;
}

.utility-main {
  width: var(--container-narrow);
  margin: 0 auto;
  padding: clamp(3rem, 10vw, 6rem) 0;
}

.utility-shell {
  display: grid;
  gap: var(--space-6);
}

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

.utility-card code,
.footer-note code {
  font-family: var(--font-mono);
}

.microcopy {
  font-size: 0.88rem;
  color: var(--spillInkFaint);
}

.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.2rem;
}

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

@media (max-width: 72rem) {
  .hero,
  .feature-layout,
  .proof-grid,
  .trust-grid,
  .cta-layout {
    grid-template-columns: 1fr;
  }

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

  .hero-stage {
    min-height: 32rem;
  }

  .feature-card:nth-child(2),
  .feature-card:nth-child(5) {
    transform: none;
  }
}

@media (max-width: 54rem) {
  .nav {
    padding: 0.85rem 0;
    align-items: start;
    flex-direction: column;
  }

  .nav-links {
    gap: 0.7rem 1rem;
  }

  .hero {
    padding-top: 2.5rem;
  }

  .step-grid,
  .feature-grid,
  .utility-grid {
    grid-template-columns: 1fr;
  }

  .hero-stage {
    min-height: 28rem;
  }

  .hero-card--secondary {
    top: 42%;
  }

  .hero-note {
    position: static;
    width: auto;
    margin-top: var(--space-4);
  }

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

@media (max-width: 36rem) {
  .page-main,
  .site-footer,
  .nav,
  .utility-main {
    width: min(calc(100vw - 1.25rem), 100%);
  }

  .hero h1 {
    font-size: clamp(2.4rem, 15vw, 3.4rem);
  }

  .button-primary,
  .button-secondary,
  .button-tertiary,
  .nav-cta {
    width: 100%;
  }

  .button-row {
    align-items: stretch;
  }
}

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

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