:root {
  color-scheme: light;
  --bg: #f7f9fa;
  --paper: #ffffff;
  --ink: #101820;
  --muted: #53616c;
  --faint: #72808b;
  --accent: #00a9bd;
  --accent-dark: #007588;
  --accent-deep: #005e6d;
  --accent-soft: #e8f8fa;
  --line: #d9e1e5;
  --line-strong: #b9c8cf;
  --dark: #101c25;
  --positive: #138a55;
  --warning: #9a6300;
  --container: 1400px;
  --header-height: 88px;
  --display: "Bahnschrift Condensed", "Arial Narrow", "Aptos Narrow", "Segoe UI", Arial, sans-serif;
  --body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --shadow-media: 0 24px 60px rgba(27, 52, 65, 0.16), 0 4px 14px rgba(27, 52, 65, 0.1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

img {
  height: auto;
}

a {
  color: var(--accent-dark);
  text-underline-offset: 0.2em;
}

a:hover {
  color: #006d7d;
}

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

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

:focus-visible {
  outline: 3px solid rgba(0, 169, 189, 0.45);
  outline-offset: 4px;
}

::selection {
  background: #b9edf2;
  color: var(--ink);
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 9999;
  transform: translateY(-160%);
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  padding: 10px 14px;
  font-weight: 750;
}

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

.container {
  width: min(calc(100% - 80px), var(--container));
  margin-inline: auto;
}

.narrow {
  width: min(100%, 820px);
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--ink);
  font-family: var(--display);
  font-stretch: condensed;
  line-height: 1.02;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.4rem, 4.2vw, 4.35rem);
  font-weight: 850;
  text-transform: uppercase;
}

h3 {
  margin-bottom: 0;
  font-size: clamp(1.25rem, 1.7vw, 1.65rem);
  font-weight: 800;
}

p {
  margin-top: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  min-height: var(--header-height);
  border-bottom: 1px solid rgba(185, 200, 207, 0.8);
  background: rgba(247, 249, 250, 0.94);
  backdrop-filter: blur(16px);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  font-family: var(--display);
  font-size: 1.34rem;
  font-weight: 850;
  letter-spacing: -0.035em;
}

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

.brand-mark {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  background: url("/assets/images/brand-logo-simple.svg") center / contain no-repeat;
}

.brand-mark svg {
  display: none;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(22px, 2.4vw, 42px);
  margin-left: auto;
}

.primary-nav a {
  color: #26343e;
  text-decoration: none;
  font-size: 0.96rem;
  font-weight: 620;
}

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

.primary-nav .nav-cta {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent-dark);
  border-radius: 4px;
  background: var(--accent-dark);
  color: #fff;
  padding: 10px 22px;
  font-weight: 760;
}

.primary-nav .nav-cta:hover {
  border-color: var(--accent-deep);
  background: var(--accent-deep);
  color: #fff;
}

.primary-nav .nav-cta[aria-current="page"] {
  color: #fff;
}

.menu-toggle {
  display: none;
  min-width: 48px;
  min-height: 48px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  border-radius: 2px;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle[aria-expanded="true"] span {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"]::before {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"]::after {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  padding: clamp(52px, 4.8vw, 74px) 0 clamp(66px, 6vw, 92px);
  background: linear-gradient(180deg, #fff 0%, var(--bg) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(570px, 1.06fr);
  align-items: center;
  gap: clamp(56px, 6vw, 104px);
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(3.25rem, 4.75vw, 5.25rem);
  font-weight: 900;
}

.hero-copy > p:not(.product-facts) {
  max-width: 700px;
  margin: 32px 0 0;
  color: #35444e;
  font-size: clamp(1.12rem, 1.45vw, 1.34rem);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 26px;
  margin-top: 38px;
}

.btn {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 13px 24px;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 780;
  line-height: 1.2;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

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

.btn svg {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
}

.btn-primary {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
  color: #fff;
  box-shadow: 0 10px 24px rgba(0, 169, 189, 0.19);
}

.btn-primary:hover {
  border-color: var(--accent-deep);
  background: var(--accent-deep);
  color: #fff;
}

.btn-secondary {
  border-color: var(--line-strong);
  background: var(--paper);
  color: var(--ink);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.text-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  color: var(--accent-dark);
  text-decoration: none;
  font-weight: 740;
  line-height: 1.35;
}

.text-action::after {
  content: "";
  position: absolute;
}

.text-action:hover {
  text-decoration: underline;
}

.product-facts {
  margin: 28px 0 0;
  color: var(--faint);
  font-size: 0.92rem;
  line-height: 1.5;
}

.hero-media {
  position: relative;
}

.network-lines {
  position: absolute;
  inset: -8% 0 -12% 42%;
  z-index: 0;
  opacity: 0.32;
  background-image:
    linear-gradient(35deg, transparent 49.5%, var(--accent) 50%, transparent 50.5%),
    radial-gradient(circle, var(--accent) 0 3px, transparent 3.5px);
  background-size: 110px 90px, 110px 90px;
  mask-image: linear-gradient(90deg, transparent, #000 30%);
}

.app-shot {
  position: relative;
  z-index: 1;
  margin: 0;
}

.app-shot img {
  width: 100%;
  border: 1px solid #9bb6c4;
  border-radius: 7px;
  background: #eef2f4;
  box-shadow: var(--shadow-media);
}

.app-shot figcaption {
  margin-top: 14px;
  color: var(--faint);
  font-size: 0.86rem;
}

.app-shot-hero {
  transform: translateY(4px);
}

.result-section,
.feature-section,
.audience-section,
.comparison-section,
.faq-section {
  padding: clamp(90px, 9vw, 148px) 0;
}

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

.section-title-line {
  display: grid;
  grid-template-columns: minmax(50px, 1fr) auto minmax(50px, 1fr);
  align-items: center;
  gap: 28px;
  margin-bottom: 54px;
}

.section-title-line::before,
.section-title-line::after {
  content: "";
  height: 1px;
  background: var(--line-strong);
}

.section-title-line h2 {
  text-align: center;
}

.result-layout {
  display: grid;
  grid-template-columns: minmax(190px, 0.52fr) minmax(520px, 1.35fr) minmax(190px, 0.52fr);
  align-items: center;
  gap: clamp(28px, 4vw, 64px);
}

.annotation-list {
  display: grid;
  gap: 68px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.annotation-list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  align-items: start;
}

.annotation-list li > span {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-dark);
  color: #fff;
  font-weight: 820;
}

.annotation-list strong {
  display: block;
  font-size: 1rem;
}

.annotation-list p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

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

.feature-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(520px, 1.22fr);
  align-items: center;
  gap: clamp(64px, 8vw, 132px);
}

.capability-list {
  margin-top: 42px;
  border-top: 2px solid var(--accent);
}

.capability-list article {
  position: relative;
  padding: 25px 0 26px 32px;
  border-bottom: 1px solid var(--line);
}

.capability-list article::before {
  content: "";
  position: absolute;
  top: 34px;
  left: 0;
  width: 14px;
  height: 2px;
  background: var(--accent);
}

.capability-list p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.steps-band {
  padding: clamp(72px, 7vw, 104px) 0 42px;
  background: var(--accent-dark);
  color: #fff;
}

.steps-band h2,
.steps-band h3 {
  color: #fff;
}

.steps-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 48px 0 0;
  padding: 0;
  list-style: none;
}

.steps-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  padding: 0 42px;
}

.steps-list li:first-child {
  padding-left: 0;
}

.steps-list li + li {
  border-left: 1px solid rgba(255, 255, 255, 0.45);
}

.steps-list li > span {
  font-family: var(--display);
  font-size: clamp(4.2rem, 6vw, 6.6rem);
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.06em;
}

.steps-list p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.55;
}

.permission-note {
  margin: 50px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.92rem;
}

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

.audience-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(330px, 0.55fr);
  gap: clamp(64px, 8vw, 132px);
}

.audience-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 42px;
  border-top: 2px solid var(--accent);
}

.audience-columns article {
  padding: 30px 42px 0 0;
}

.audience-columns article + article {
  border-left: 1px solid var(--line);
  padding-left: 42px;
}

.audience-columns ul,
.limits-panel ul {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.audience-columns li,
.limits-panel li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.limits-panel {
  border-left: 3px solid var(--accent);
  padding-left: clamp(28px, 3vw, 46px);
}

.limits-panel h2 {
  font-size: clamp(2.2rem, 3.2vw, 3.2rem);
}

.limits-panel .text-action {
  margin-top: 30px;
}

.comparison-section {
  border-block: 1px solid var(--line);
  background: var(--bg);
}

.section-intro {
  max-width: 850px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin-top: 48px;
  border-top: 2px solid var(--accent);
  background: transparent;
}

table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
}

th,
td {
  padding: 22px 24px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th + th,
td + td {
  border-left: 1px solid var(--line);
}

th {
  color: #394751;
  font-size: 0.88rem;
  font-weight: 760;
}

td {
  color: var(--muted);
  font-size: 0.95rem;
}

td strong {
  color: var(--ink);
}

.is-featured td:first-child strong {
  color: var(--accent-dark);
}

.comparison-section > .container > .text-action {
  margin-top: 30px;
}

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

.faq-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.45fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(64px, 9vw, 150px);
}

.faq-heading p {
  margin: 24px 0 0;
  color: var(--muted);
}

.faq-heading .text-action {
  margin-top: 28px;
}

.faq-list {
  border-top: 2px solid var(--accent);
}

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

.faq-list summary {
  position: relative;
  min-height: 72px;
  display: flex;
  align-items: center;
  padding: 20px 62px 20px 0;
  cursor: pointer;
  color: var(--ink);
  font-weight: 680;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 10px;
  color: var(--accent-dark);
  font-size: 1.7rem;
  font-weight: 400;
  transition: transform 160ms ease;
}

.faq-list details[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-width: 780px;
  padding: 0 60px 26px 0;
  color: var(--muted);
}

.faq-answer p {
  margin: 0;
}

.faq-answer p + p,
.faq-answer ul {
  margin-top: 12px;
}

.final-cta {
  border-top: 1px solid #c7e8ec;
  background: var(--accent-soft);
  padding: clamp(60px, 6vw, 90px) 0;
}

.final-cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 60px;
}

.final-cta h2 {
  font-size: clamp(2.5rem, 4vw, 4rem);
}

.final-cta p {
  margin: 18px 0 0;
  color: var(--muted);
}

.final-cta-actions {
  display: grid;
  justify-items: start;
  gap: 18px;
}

.site-footer {
  background: var(--dark);
  color: #d7e0e5;
  padding: 68px 0 26px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(280px, 1.45fr) repeat(2, minmax(150px, 0.55fr));
  gap: 64px;
}

.brand-footer {
  color: #fff;
}

.brand-footer:hover {
  color: #fff;
}

.footer-brand p {
  max-width: 420px;
  margin: 20px 0 0;
  color: #aab8c1;
  font-size: 0.92rem;
}

.footer-col h2 {
  margin: 4px 0 18px;
  color: #fff;
  font-family: var(--body);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-col a {
  display: block;
  width: fit-content;
  padding: 6px 0;
  color: #b9c5cc;
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  margin-top: 56px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding-top: 24px;
  color: #8fa0aa;
  font-size: 0.8rem;
}

.footer-bottom p {
  margin: 0;
}

.footer-bottom a {
  color: #8adbe4;
}

/* Internal pages */
.page-hero {
  padding: clamp(58px, 7vw, 96px) 0 clamp(54px, 6vw, 82px);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.page-hero h1 {
  max-width: 1000px;
  margin: 0;
  font-size: clamp(3rem, 6vw, 6rem);
  font-weight: 900;
}

.page-hero .lead {
  max-width: 820px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.5vw, 1.25rem);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  color: var(--faint);
  font-size: 0.84rem;
  list-style: none;
}

.breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: #9aa8b0;
}

.breadcrumbs a {
  color: var(--faint);
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 24px;
  color: var(--faint);
  font-size: 0.86rem;
}

.section {
  padding: clamp(72px, 8vw, 118px) 0;
}

.section-band {
  border-block: 1px solid var(--line);
  background: var(--paper);
}

.section-head {
  max-width: 800px;
  margin-bottom: 46px;
}

.section-label {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-head p,
.prose-intro {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.04rem;
}

.article-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 880px);
  align-items: start;
  gap: clamp(52px, 7vw, 100px);
}

.toc {
  position: sticky;
  top: calc(var(--header-height) + 28px);
  border-left: 3px solid var(--accent);
  padding-left: 22px;
}

.toc strong {
  display: block;
  margin-bottom: 12px;
  color: var(--ink);
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.toc a {
  display: block;
  padding: 5px 0;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.toc a:hover {
  color: var(--accent-dark);
}

.article-content > section + section {
  margin-top: 82px;
}

.article-content h2 {
  font-size: clamp(2.1rem, 3.8vw, 3.4rem);
}

.article-content h3 {
  margin-top: 32px;
}

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

.article-content ol,
.article-content ul {
  padding-left: 1.35rem;
}

.article-content li + li {
  margin-top: 10px;
}

.article-content code,
.faq-answer code {
  border: 1px solid var(--line);
  border-radius: 3px;
  background: #eef3f5;
  padding: 0.12em 0.35em;
  color: #24343e;
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.9em;
}

.article-figure {
  margin: 32px 0;
}

.article-figure img {
  width: min(100%, 653px);
  border: 1px solid #9bb6c4;
  border-radius: 6px;
  background: #eef2f4;
  box-shadow: var(--shadow-media);
}

.article-figure figcaption {
  max-width: 653px;
  margin-top: 12px;
  color: var(--faint);
  font-size: 0.84rem;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 2px solid var(--accent);
}

.content-card {
  border-bottom: 1px solid var(--line);
  padding: 28px 30px 28px 0;
}

.content-card:nth-child(even) {
  border-left: 1px solid var(--line);
  padding-left: 30px;
}

.content-card p {
  margin: 10px 0 0;
  color: var(--muted);
}

.source-list {
  margin: 28px 0 0;
  padding: 0;
  border-top: 2px solid var(--accent);
  list-style: none;
}

.source-list li {
  display: grid;
  grid-template-columns: minmax(170px, 0.34fr) 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.source-list span {
  color: var(--muted);
}

.notice {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 30px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 18px 20px;
  color: #33434d;
  font-size: 0.92rem;
}

.notice svg {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  color: var(--accent-dark);
}

.notice-warning {
  border-color: #d29420;
  background: #fff5df;
}

.notice-warning svg {
  color: var(--warning);
}

.verification-panel {
  border-top: 2px solid var(--accent);
}

.verification-title {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.verification-title svg {
  width: 34px;
  height: 34px;
  color: var(--accent-dark);
}

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

.data-row {
  display: grid;
  grid-template-columns: minmax(180px, 0.4fr) minmax(0, 1fr);
  border-bottom: 1px solid var(--line);
}

.data-row dt,
.data-row dd {
  margin: 0;
  padding: 14px 16px;
}

.data-row dt {
  color: var(--muted);
}

.data-row dd {
  overflow-wrap: anywhere;
  border-left: 1px solid var(--line);
  color: var(--ink);
}

.hash {
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.84rem;
}

.status-ok {
  color: var(--positive);
  font-weight: 720;
}

.verification-footer,
.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 26px;
}

.verification-footer .text-link,
.text-link {
  color: var(--accent-dark);
  text-decoration: none;
  font-weight: 720;
}

.independent-note {
  flex-basis: 100%;
  margin: 0;
  color: var(--faint);
  font-size: 0.86rem;
}

.download-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  align-items: stretch;
  gap: clamp(52px, 8vw, 128px);
}

.download-main {
  border-top: 3px solid var(--accent);
  padding-top: 32px;
}

.download-main h2,
.download-facts + h2 {
  font-size: clamp(2.4rem, 4vw, 4rem);
}

.download-button {
  margin-top: 30px;
}

.external-note {
  margin: 14px 0 0;
  color: var(--faint);
  font-size: 0.84rem;
}

.download-facts {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 26px 30px;
}

.download-facts dl {
  margin: 0;
}

.download-facts dl > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid #c7e4e8;
}

.download-facts dl > div:last-child {
  border-bottom: 0;
}

.download-facts dt {
  color: var(--faint);
}

.download-facts dd {
  margin: 0;
  color: var(--ink);
  font-weight: 720;
}

.split-guide {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(500px, 1.15fr);
  align-items: center;
  gap: clamp(60px, 8vw, 130px);
}

.numbered-guide {
  margin: 38px 0 0;
  padding: 0;
  border-top: 2px solid var(--accent);
  list-style: none;
}

.numbered-guide li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.numbered-guide li > span {
  color: var(--accent-dark);
  font-family: var(--display);
  font-size: 2.1rem;
  font-weight: 900;
  line-height: 1;
}

.numbered-guide p {
  margin: 8px 0 0;
  color: var(--muted);
}

.two-column-info {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(50px, 8vw, 120px);
}

.two-column-info article {
  border-top: 3px solid var(--accent);
  padding-top: 30px;
}

.two-column-info article h2 {
  font-size: clamp(2.25rem, 3.5vw, 3.5rem);
}

.two-column-info article > p {
  margin: 20px 0 0;
  color: var(--muted);
}

.check-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 13px 0 13px 28px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-dark);
  font-weight: 900;
}

.related-links {
  margin-top: 26px;
  border-top: 2px solid var(--accent);
}

.related-links a {
  display: grid;
  gap: 3px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
}

.related-links a:hover strong {
  color: var(--accent-dark);
}

.related-links span {
  color: var(--muted);
  font-size: 0.9rem;
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin: 30px 0;
}

.figure-grid .article-figure {
  margin: 0;
}

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

.definition-list {
  margin: 30px 0;
  border-top: 2px solid var(--accent);
}

.definition-list > div {
  display: grid;
  grid-template-columns: minmax(150px, 0.3fr) 1fr;
  gap: 24px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.definition-list strong {
  color: var(--ink);
}

.definition-list span {
  color: var(--muted);
}

.comparison-profiles {
  display: grid;
  gap: 84px;
}

.comparison-profiles > article {
  display: grid;
  grid-template-columns: 100px minmax(0, 820px);
  gap: 34px;
  padding-top: 34px;
  border-top: 2px solid var(--accent);
}

.profile-number {
  color: var(--accent);
  font-family: var(--display);
  font-size: 4.8rem;
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.comparison-profiles h2 {
  font-size: clamp(2.6rem, 4vw, 4rem);
}

.comparison-profiles h3 {
  margin-top: 30px;
}

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

.comparison-profiles ul {
  padding-left: 1.25rem;
}

.profile-lead {
  max-width: 720px;
  margin: 16px 0 0;
  font-size: 1.08rem;
}

.decision-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.45fr) minmax(0, 1fr);
  gap: clamp(60px, 9vw, 150px);
}

.decision-grid > div:first-child > p {
  margin-top: 18px;
  color: var(--muted);
}

.decision-list {
  border-top: 2px solid var(--accent);
}

.decision-list article {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.decision-list p {
  margin: 6px 0 0;
  color: var(--muted);
}

.faq-page-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 900px);
  align-items: start;
  gap: clamp(52px, 7vw, 100px);
}

.faq-page-content > section + section {
  margin-top: 84px;
}

.faq-page-content > section > h2 {
  margin-bottom: 34px;
  font-size: clamp(2.25rem, 3.8vw, 3.5rem);
}

.faq-page-content .faq-answer ol,
.faq-page-content .faq-answer ul {
  padding-left: 1.3rem;
}

.faq-page-content .faq-answer li + li {
  margin-top: 6px;
}

.not-found {
  min-height: calc(100vh - var(--header-height));
  display: grid;
  place-items: center;
  padding: 70px 0;
  background: var(--paper);
}

.not-found-inner {
  max-width: 780px;
}

.error-code {
  margin: 0;
  color: var(--accent);
  font-family: var(--display);
  font-size: clamp(5rem, 14vw, 12rem);
  font-weight: 900;
  line-height: 0.75;
  letter-spacing: -0.08em;
}

.not-found h1 {
  margin: 34px 0 0;
  font-size: clamp(3rem, 6vw, 6rem);
  font-weight: 900;
}

.not-found p:not(.error-code) {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.1rem;
}

@media (max-width: 1120px) {
  .hero-grid,
  .feature-layout {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 850px;
  }

  .hero-media,
  .feature-shot {
    width: min(100%, 820px);
  }

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

  .result-shot {
    grid-column: 1 / -1;
    grid-row: 1;
    width: min(100%, 820px);
    margin-inline: auto;
  }

  .annotation-list {
    gap: 28px;
  }

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

  .download-layout,
  .split-guide {
    grid-template-columns: 1fr;
  }

  .split-guide .app-shot {
    width: min(100%, 820px);
  }

  .limits-panel {
    border-top: 3px solid var(--accent);
    border-left: 0;
    padding: 34px 0 0;
  }
}

@media (max-width: 980px) {
  :root {
    --header-height: 76px;
  }

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

  .brand {
    font-size: 1.15rem;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
    flex-basis: 40px;
  }

  .menu-toggle {
    display: block;
  }

  .primary-nav {
    position: fixed;
    inset: var(--header-height) 0 auto;
    max-height: calc(100vh - var(--header-height));
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow-y: auto;
    border-bottom: 1px solid var(--line-strong);
    background: var(--paper);
    padding: 14px 24px 26px;
    box-shadow: 0 18px 35px rgba(27, 52, 65, 0.12);
  }

  .primary-nav[data-open="true"] {
    display: flex;
  }

  .primary-nav a {
    min-height: 52px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--line);
  }

  .primary-nav .nav-cta {
    margin-top: 16px;
    border-bottom: 0;
  }

  .steps-list {
    grid-template-columns: 1fr;
  }

  .steps-list li,
  .steps-list li:first-child {
    padding: 30px 0;
  }

  .steps-list li + li {
    border-top: 1px solid rgba(255, 255, 255, 0.42);
    border-left: 0;
  }

  .faq-layout,
  .faq-page-layout,
  .final-cta-inner,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 3px solid var(--accent);
    border-left: 0;
    padding: 20px 0 0;
  }

  .toc strong {
    grid-column: 1 / -1;
  }

  .figure-grid-three {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 32px), var(--container));
  }

  .hero {
    padding-top: 54px;
  }

  .hero h1 {
    font-size: clamp(2.75rem, 12vw, 4.2rem);
    line-height: 1.01;
  }

  .hero-copy > p:not(.product-facts) {
    margin-top: 24px;
    font-size: 1.05rem;
  }

  .hero-actions {
    display: grid;
    justify-items: stretch;
  }

  .hero-actions .text-action {
    justify-self: center;
  }

  .btn {
    width: 100%;
  }

  .product-facts {
    text-align: center;
  }

  .network-lines {
    display: none;
  }

  .section-title-line {
    display: block;
  }

  .section-title-line h2 {
    text-align: left;
  }

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

  .annotation-list,
  .annotation-left,
  .annotation-right {
    grid-column: auto;
  }

  .result-shot {
    grid-column: auto;
  }

  .feature-layout {
    gap: 56px;
  }

  .audience-columns,
  .content-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .audience-columns article,
  .audience-columns article + article {
    border-left: 0;
    padding: 28px 0 0;
  }

  .audience-columns article + article {
    border-top: 1px solid var(--line);
    margin-top: 28px;
  }

  .content-card,
  .content-card:nth-child(even) {
    border-left: 0;
    padding: 26px 0;
  }

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

  .source-list li {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .data-row {
    grid-template-columns: 1fr;
  }

  .data-row dd {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .two-column-info {
    grid-template-columns: 1fr;
  }

  .download-facts dl > div {
    grid-template-columns: 1fr;
    gap: 3px;
  }

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

  .definition-list > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (max-width: 520px) {
  .brand {
    gap: 9px;
    font-size: 1rem;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
    flex-basis: 42px;
  }

  h2 {
    font-size: clamp(2.25rem, 11vw, 3.25rem);
  }

  .page-hero h1 {
    font-size: clamp(2.6rem, 12vw, 4rem);
  }

  .hero-actions {
    gap: 18px;
  }

  .app-shot img {
    border-radius: 4px;
  }

  .annotation-list li {
    grid-template-columns: 42px 1fr;
    gap: 13px;
  }

  .annotation-list li > span {
    width: 40px;
    height: 40px;
  }

  .steps-list li {
    grid-template-columns: 72px 1fr;
    gap: 18px;
  }

  .steps-list li > span {
    font-size: 4rem;
  }

  .faq-answer {
    padding-right: 16px;
  }

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

  .footer-grid {
    gap: 38px;
  }

  .comparison-profiles > article {
    grid-template-columns: 1fr;
  }

  .profile-number {
    font-size: 3.5rem;
  }
}

@media (max-width: 400px) {
  .page-hero h1 {
    font-size: 2.35rem;
  }
}

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

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

@media print {
  .site-header,
  .site-footer,
  .hero-actions,
  .final-cta,
  .toc {
    display: none !important;
  }

  body {
    background: #fff;
    color: #111;
  }
}