:root {
  color-scheme: light;
  --graphite: #20282d;
  --deep-graphite: #171d21;
  --paper: #f4f0e7;
  --paper-2: #faf8f2;
  --amber: #f5a623;
  --amber-hover: #ffb73d;
  --text: #20282d;
  --muted: #566168;
  --line: #d8d3c8;
  --header-bg: rgba(244, 240, 231, 0.96);
  --display: "Archivo", "Arial Narrow", Arial, sans-serif;
  --body: "IBM Plex Sans", Arial, Helvetica, sans-serif;
  --mono: "IBM Plex Mono", "Courier New", monospace;
  --radius: 18px;
  --radius-small: 10px;
  --shadow: 0 20px 60px rgba(23, 29, 33, 0.1);
  --content: 1180px;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --paper: #171d21;
    --paper-2: #20282d;
    --text: #f4f0e7;
    --muted: #b2babd;
    --line: #39444a;
    --header-bg: rgba(23, 29, 33, 0.96);
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.24);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

img {
  height: auto;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

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

button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}

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

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

h1,
h2,
h3 {
  font-family: var(--display);
  line-height: 1.04;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 900px;
  margin-bottom: 24px;
  font-size: clamp(2.65rem, 6vw, 5.25rem);
  font-weight: 800;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.35rem);
  font-weight: 800;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

p {
  margin-bottom: 20px;
}

.container {
  width: min(var(--content), calc(100% - 48px));
  margin-inline: auto;
}

.narrow {
  width: min(790px, 100%);
}

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

.eyebrow {
  display: block;
  margin-bottom: 18px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.5;
  text-transform: uppercase;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  transform: translateY(-160%);
  border-radius: 6px;
  background: var(--amber);
  color: var(--deep-graphite);
  font-weight: 600;
}

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

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-family: var(--body);
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
}

.button:hover {
  color: inherit;
}

.button-amber {
  background: var(--amber);
  color: var(--deep-graphite);
}

.button-amber:hover {
  background: var(--amber-hover);
  color: var(--deep-graphite);
}

.button-outline {
  border-color: var(--line);
  background: transparent;
}

.button-outline:hover {
  border-color: var(--text);
  background: var(--paper-2);
}

.hero .button-outline,
.cta-band .button-outline {
  border-color: #657076;
  color: #f4f0e7;
}

.hero .button-outline:hover,
.cta-band .button-outline:hover {
  border-color: #f4f0e7;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: var(--header-bg);
  backdrop-filter: blur(14px);
}

.header-inner {
  position: relative;
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}

.brand:hover {
  color: var(--text);
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 7px;
}

.wordmark {
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.045em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 0.91rem;
  font-weight: 500;
}

.desktop-nav > a:not(.button) {
  text-decoration: none;
}

.desktop-nav > a:not(.button):hover {
  color: var(--muted);
}

.desktop-nav .button {
  min-height: 42px;
  padding: 10px 16px;
}

.mobile-nav {
  display: none;
}

.mobile-nav summary {
  display: grid;
  width: 44px;
  height: 44px;
  cursor: pointer;
  list-style: none;
  place-content: center;
  gap: 7px;
  border-radius: 7px;
}

.mobile-nav summary::-webkit-details-marker {
  display: none;
}

.mobile-nav summary span:not(.sr-only) {
  width: 23px;
  height: 2px;
  background: var(--text);
}

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

.mobile-menu-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  left: 0;
  display: grid;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-2);
  box-shadow: var(--shadow);
}

.mobile-menu-panel a {
  padding: 12px;
  text-decoration: none;
}

.mobile-menu-panel .button {
  margin-top: 8px;
}

.hero {
  position: relative;
  overflow: hidden;
  background: var(--graphite);
  color: #f4f0e7;
}

.hero-layout {
  display: grid;
  min-height: 690px;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.72fr);
  align-items: center;
  gap: clamp(44px, 7vw, 100px);
  padding-block: 62px;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero .eyebrow {
  color: #c8cecf;
}

.hero h1 {
  max-width: 720px;
  font-size: clamp(3rem, 5.7vw, 5.3rem);
}

.hero-copy > p {
  max-width: 630px;
  margin-bottom: 0;
  color: #d5dada;
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
}

.hero-media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid #465157;
  border-radius: 24px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.3);
}

.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.section {
  padding-block: clamp(56px, 7vw, 92px);
}

.section-bordered {
  border-top: 1px solid var(--line);
}

.section-alt {
  background: var(--paper-2);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.65fr);
  align-items: end;
  gap: 48px;
  margin-bottom: 46px;
}

.section-heading h2 {
  max-width: 700px;
  margin-bottom: 0;
}

.section-heading p {
  margin-bottom: 3px;
  color: var(--muted);
}

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

.step-card,
.info-card {
  min-width: 0;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-2);
}

.step-number {
  display: block;
  margin-bottom: 16px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.step-icon {
  display: block;
  width: auto;
  max-width: 100%;
  height: 150px;
  margin: 0 auto 24px;
  object-fit: contain;
}

.step-card p,
.info-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

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

.info-card {
  padding: 32px;
}

.info-card h3 {
  font-size: 1.55rem;
}

.info-card a {
  display: inline-block;
  margin-top: 18px;
  font-size: 0.92rem;
  font-weight: 600;
}

.data-strip {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(36px, 8vw, 100px);
}

.data-strip p:last-child {
  margin-bottom: 0;
}

.source-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.source-list li {
  padding: 17px 0;
  border-top: 1px solid var(--line);
}

.source-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.scope-note {
  padding: 30px 32px;
  border-left: 4px solid var(--amber);
  border-radius: 0 var(--radius-small) var(--radius-small) 0;
  background: var(--paper-2);
}

.scope-note h2 {
  margin-bottom: 12px;
  font-size: 1.55rem;
}

.scope-note p {
  max-width: 870px;
  margin-bottom: 0;
  color: var(--muted);
}

.cta-band {
  padding-block: clamp(64px, 8vw, 96px);
  background: var(--deep-graphite);
  color: #f4f0e7;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-inner h2 {
  max-width: 700px;
  margin-bottom: 12px;
}

.cta-inner p {
  max-width: 650px;
  margin-bottom: 0;
  color: #bdc5c7;
}

.cta-inner .button-row {
  flex-shrink: 0;
  margin-top: 0;
}

.page-hero {
  padding-block: clamp(54px, 7vw, 88px);
  border-bottom: 1px solid var(--line);
  background: var(--paper-2);
}

.page-hero h1 {
  font-size: clamp(2.7rem, 5.5vw, 4.8rem);
}

.page-hero p {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.15rem;
}

.feature-group {
  display: grid;
  grid-template-columns: minmax(220px, 0.55fr) minmax(0, 1.45fr);
  gap: clamp(34px, 8vw, 100px);
  padding-block: 54px;
  border-bottom: 1px solid var(--line);
}

.feature-group:first-child {
  padding-top: 0;
}

.feature-group:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.feature-group > div > p {
  color: var(--muted);
}

.feature-list {
  display: grid;
  gap: 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  padding-left: 24px;
  border-left: 2px solid var(--amber);
}

.feature-list h3 {
  margin-bottom: 6px;
  font-family: var(--body);
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.4;
}

.feature-list p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.97rem;
}

.prose {
  max-width: 800px;
}

.prose section {
  margin-bottom: 54px;
}

.prose h2 {
  margin-bottom: 20px;
  font-size: clamp(1.75rem, 3vw, 2.45rem);
}

.prose h3 {
  margin-top: 28px;
  font-family: var(--body);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.4;
}

.prose p,
.prose li {
  color: var(--muted);
}

.prose strong {
  color: var(--text);
}

.prose ul,
.prose ol {
  padding-left: 24px;
}

.prose li {
  margin-bottom: 12px;
  padding-left: 5px;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  padding: 23px 42px 23px 0;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

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

.faq-list summary::after {
  position: absolute;
  top: 21px;
  right: 4px;
  content: "+";
  color: var(--muted);
  font-family: var(--mono);
  font-size: 1.25rem;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-answer {
  max-width: 760px;
  padding: 0 36px 24px 0;
  color: var(--muted);
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.site-footer {
  padding-block: 58px 30px;
  border-top: 1px solid var(--line);
  background: var(--paper-2);
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.8fr);
  gap: 60px;
  padding-bottom: 42px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.footer-brand img {
  width: 28px;
  height: 28px;
}

.footer-description {
  max-width: 480px;
  margin-bottom: 12px;
  color: var(--muted);
}

.footer-note {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: start;
  gap: 13px 26px;
  font-size: 0.93rem;
}

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

.copyright {
  margin: 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@media (max-width: 960px) {
  .desktop-nav {
    gap: 17px;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.65fr);
    gap: 38px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .step-card,
  .info-card {
    padding: 24px;
  }

  .cta-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 800px) {
  .desktop-nav {
    display: none;
  }

  .mobile-nav {
    display: block;
  }

  .hero-layout {
    display: flex;
    min-height: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 30px;
    padding-block: 24px 46px;
  }

  .hero-copy {
    width: min(100%, 650px);
    margin-inline: auto;
  }

  .hero h1 {
    max-width: 600px;
    font-size: clamp(2.8rem, 9vw, 4.5rem);
  }

  .hero-media {
    order: -1;
    border-radius: 18px;
  }

  .hero-media img {
    max-height: 520px;
    object-position: center 45%;
  }

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

  .step-card {
    display: grid;
    grid-template-columns: 130px minmax(0, 1fr);
    column-gap: 24px;
  }

  .step-icon {
    grid-row: 1 / 4;
    width: 100%;
    height: auto;
    margin: 0;
  }

  .step-number {
    margin-bottom: 8px;
  }

  .data-strip,
  .footer-top {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .feature-group {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 16px;
  }

  .container {
    width: calc(100% - 40px);
  }

  .header-inner {
    min-height: 70px;
  }

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

  .wordmark {
    font-size: 1.22rem;
  }

  .hero-layout {
    padding-block: 16px 38px;
  }

  .hero h1 {
    font-size: clamp(2.55rem, 12vw, 3.7rem);
  }

  .hero-copy > p {
    font-size: 1rem;
  }

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

  .button-row .button {
    width: 100%;
  }

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

  .step-card {
    display: block;
  }

  .step-icon {
    width: auto;
    height: 120px;
    margin: 0 0 20px;
  }

  .section {
    padding-block: 66px;
  }

  .section-heading {
    margin-bottom: 30px;
  }

  .scope-note {
    padding: 24px;
  }

  .page-hero {
    padding-block: 58px;
  }

  .feature-group {
    padding-block: 42px;
  }

  .footer-links {
    grid-template-columns: 1fr 1fr;
  }
}

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