:root {
  --paper: #f7f7f3;
  --surface: #ffffff;
  --ink: #182229;
  --muted: #536068;
  --rule: #cfd5d3;
  --rule-strong: #8d9997;
  --accent: #c64228;
  --accent-dark: #8f2e1d;
  --study: #dfe9e5;
  --content: 1180px;
  --measure: 72ch;
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.25, 1, 0.5, 1);
}

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

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
  text-size-adjust: 100%;
  hanging-punctuation: first allow-end last;
  -webkit-tap-highlight-color: color-mix(in srgb, var(--accent) 18%, transparent);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Hiragino Sans", "Yu Gothic", "Noto Sans JP", system-ui, sans-serif;
  font-size: 16px;
  font-synthesis: none;
  font-optical-sizing: auto;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: color-mix(in srgb, var(--accent) 24%, var(--surface));
  color: var(--ink);
  text-shadow: none;
}

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

h1,
h2,
h3 {
  font-family: "Avenir Next", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  text-wrap: balance;
}

p,
li,
dd {
  text-wrap: pretty;
}

a {
  color: var(--accent-dark);
  text-decoration-color: color-mix(in srgb, currentColor 45%, transparent);
  text-decoration-skip-ink: auto;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 180ms var(--ease-standard), text-decoration-color 180ms var(--ease-standard), text-underline-offset 180ms var(--ease-standard);
}

a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
  text-underline-offset: 0.15em;
}

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  min-height: 44px;
  padding: 8px 14px;
  background: var(--ink);
  color: var(--surface);
  transform: translateY(-160%);
}

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

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}

.nav-shell {
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: 0.015em;
  text-decoration: none;
}

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

.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  background: var(--accent);
  color: var(--surface);
  clip-path: polygon(0 0, 100% 0, 100% 78%, 78% 100%, 0 100%);
  font-size: 20px;
  font-weight: 900;
  line-height: 1;
}

.brand-copy {
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: stretch;
  gap: 28px;
}

.site-nav a {
  position: relative;
  display: flex;
  min-height: 44px;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -12px;
  left: 0;
  height: 3px;
  background: transparent;
  content: "";
}

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

.site-nav a[aria-current="page"]::after {
  background: var(--accent);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  display: block;
  width: 19px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  content: "";
  transition: opacity 120ms var(--ease-standard), transform 180ms var(--ease-out);
}

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

.nav-toggle[aria-expanded="true"]::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"]::after {
  transform: translateY(-6px) rotate(-45deg);
}

.site-notice {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 12px;
  padding: 8px 24px;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 30%, var(--rule));
  background: color-mix(in srgb, var(--accent) 9%, var(--surface));
  color: var(--accent-dark);
  font-size: 13px;
  text-align: center;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(340px, 5fr);
  align-items: center;
  gap: clamp(56px, 8vw, 112px);
  padding-block: clamp(88px, 10vw, 136px) clamp(72px, 8vw, 104px);
}

.hero-copy {
  max-width: 680px;
}

.context-line,
.section-index {
  margin-bottom: 18px;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.025em;
}

.section-index {
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.section-index span {
  color: var(--accent);
  font-variant-numeric: tabular-nums lining-nums;
}

.hero h1 {
  max-width: 680px;
  margin-bottom: 28px;
  margin-left: -0.035em;
  font-size: clamp(42px, 5.6vw, 64px);
  font-weight: 750;
  letter-spacing: -0.045em;
  line-height: 1.1;
}

.hero-lead {
  max-width: 590px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: clamp(17px, 1.8vw, 19px);
  line-height: 1.9;
}

.action-row,
.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 22px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--ink);
  color: var(--surface);
  font-weight: 750;
  line-height: 1.4;
  text-decoration: none;
  transition: background-color 220ms var(--ease-standard), border-color 220ms var(--ease-standard), color 220ms var(--ease-standard), transform 120ms var(--ease-out);
}

.button:hover {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
  color: var(--surface);
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.button.secondary {
  border-color: var(--rule-strong);
  background: transparent;
  color: var(--ink);
}

.button.secondary:hover {
  border-color: var(--ink);
  background: var(--surface);
  color: var(--ink);
}

.text-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 8px;
  font-weight: 750;
}

.text-link::after {
  content: "→";
  transition: transform 160ms var(--ease-out);
}

.text-link:hover::after {
  transform: translateX(3px);
}

.availability-note {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.availability-note::before {
  margin-right: 0.45em;
  color: var(--accent);
  content: "※";
}

.catalog-register {
  align-self: stretch;
  padding-top: 26px;
  border-top: 5px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: var(--surface);
}

.catalog-register header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 0 22px 16px;
  border-bottom: 1px solid var(--rule);
  font-size: 13px;
  font-weight: 800;
}

.catalog-register time {
  color: var(--muted);
  font-variant-numeric: tabular-nums lining-nums;
  font-weight: 600;
}

.catalog-register dl {
  margin-bottom: 0;
}

.catalog-register dl > div {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 16px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--rule);
}

.catalog-register dt {
  font-size: 14px;
  font-weight: 750;
}

.catalog-register dd {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 0;
}

.catalog-register dd strong {
  font-family: "Avenir Next", system-ui, sans-serif;
  font-size: clamp(27px, 3vw, 36px);
  font-variant-numeric: tabular-nums lining-nums;
  letter-spacing: -0.04em;
  line-height: 1;
}

.catalog-register dd span {
  color: var(--muted);
  font-size: 12px;
}

.catalog-register > p {
  margin-bottom: 0;
  padding: 18px 22px 22px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.section {
  padding-block: clamp(80px, 10vw, 128px);
}

.product-showcase {
  overflow: hidden;
  background: var(--ink);
  color: var(--surface);
}

.showcase-heading {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(300px, 4fr);
  align-items: end;
  gap: clamp(40px, 8vw, 96px);
  margin-bottom: clamp(42px, 6vw, 76px);
}

.showcase-heading .section-index {
  color: color-mix(in srgb, var(--surface) 68%, var(--ink));
}

.showcase-heading .section-index span {
  color: color-mix(in srgb, var(--accent) 76%, var(--surface));
}

.showcase-heading h2 {
  margin-bottom: 0;
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 730;
  letter-spacing: -0.045em;
  line-height: 1.15;
}

.showcase-heading > p {
  max-width: 44ch;
  margin-bottom: 4px;
  color: color-mix(in srgb, var(--surface) 72%, var(--ink));
}

.app-screen-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: clamp(22px, 3.6vw, 46px);
  outline: none;
}

.app-shot {
  min-width: 0;
  margin: 0;
}

.app-shot:nth-child(2) {
  margin-top: clamp(38px, 5vw, 68px);
}

.device-frame {
  overflow: hidden;
  border: clamp(7px, 0.8vw, 10px) solid #0d1814;
  border-radius: clamp(24px, 3vw, 38px);
  background: #0d1814;
  box-shadow: 0 28px 70px color-mix(in srgb, #000 46%, transparent);
}

.device-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(clamp(24px, 3vw, 38px) - 8px);
}

.app-shot figcaption {
  display: grid;
  gap: 7px;
  padding: 18px 6px 0;
}

.app-shot figcaption span {
  color: color-mix(in srgb, var(--accent) 70%, var(--surface));
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.app-shot figcaption strong {
  max-width: 26ch;
  font-size: clamp(15px, 1.7vw, 19px);
  line-height: 1.55;
}

.daily-study {
  border-block: 1px solid var(--rule);
  background: var(--surface);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(300px, 4fr);
  align-items: end;
  gap: clamp(40px, 8vw, 96px);
  margin-bottom: clamp(42px, 6vw, 72px);
}

.section-heading h2,
.privacy-copy h2 {
  margin-bottom: 0;
  font-size: clamp(34px, 4.5vw, 52px);
  font-weight: 730;
  letter-spacing: -0.04em;
  line-height: 1.2;
}

.section-heading > p {
  max-width: 44ch;
  margin-bottom: 4px;
  color: var(--muted);
}

.learning-sequence {
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--ink);
  counter-reset: learning;
  list-style: none;
}

.learning-sequence li {
  display: grid;
  grid-template-columns: minmax(128px, 2fr) minmax(0, 7fr);
  gap: clamp(28px, 6vw, 88px);
  padding: 28px 0;
  border-bottom: 1px solid var(--rule);
  counter-increment: learning;
}

.sequence-label {
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 800;
}

.sequence-label::before {
  display: inline-block;
  min-width: 2.7em;
  color: var(--rule-strong);
  content: counter(learning, decimal-leading-zero);
  font-variant-numeric: tabular-nums lining-nums;
}

.learning-sequence h3 {
  margin-bottom: 6px;
  font-size: clamp(19px, 2vw, 23px);
  letter-spacing: -0.02em;
  line-height: 1.45;
}

.learning-sequence p {
  max-width: 62ch;
  margin-bottom: 0;
  color: var(--muted);
}

.data-section {
  padding-block: clamp(88px, 11vw, 144px);
  background: var(--study);
}

.privacy-promise {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(380px, 7fr);
  align-items: start;
  gap: clamp(56px, 10vw, 132px);
}

.privacy-copy > p:not(.section-index) {
  max-width: 48ch;
  margin: 24px 0 20px;
  color: var(--muted);
  font-size: 17px;
}

.data-facts {
  margin-bottom: 0;
  border-top: 2px solid var(--ink);
}

.data-facts > div {
  display: grid;
  grid-template-columns: minmax(130px, 2fr) minmax(0, 3fr);
  gap: 24px;
  padding: 17px 0;
  border-bottom: 1px solid var(--rule-strong);
}

.data-facts dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.data-facts dd {
  margin-bottom: 0;
  font-weight: 750;
}

.plan-section {
  padding-block: clamp(56px, 8vw, 92px);
}

.plan-strip {
  display: grid;
  grid-template-columns: minmax(150px, 2fr) minmax(0, 6fr) auto;
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  padding: clamp(34px, 5vw, 58px);
  background: var(--ink);
  color: var(--surface);
}

.plan-strip .section-index {
  align-self: start;
  margin-bottom: 0;
  color: color-mix(in srgb, var(--surface) 72%, var(--ink));
}

.plan-strip .section-index span {
  color: color-mix(in srgb, var(--accent) 72%, var(--surface));
}

.plan-strip h2 {
  margin-bottom: 9px;
  font-size: clamp(27px, 3.5vw, 40px);
  font-weight: 720;
  letter-spacing: -0.035em;
  line-height: 1.25;
}

.plan-strip p {
  max-width: 62ch;
  margin-bottom: 0;
  color: color-mix(in srgb, var(--surface) 73%, var(--ink));
}

.button-on-dark,
.plan-strip .button {
  border-color: var(--surface);
  background: var(--surface);
  color: var(--ink);
}

.button-on-dark:hover,
.plan-strip .button:hover {
  border-color: var(--study);
  background: var(--study);
  color: var(--ink);
}

.page-hero {
  padding-block: clamp(72px, 9vw, 112px) clamp(52px, 7vw, 80px);
  border-bottom: 1px solid var(--rule);
}

.page-hero-inner {
  max-width: 860px;
  margin-inline: auto auto;
}

.page-hero h1 {
  margin-bottom: 22px;
  margin-left: -0.035em;
  font-size: clamp(42px, 6vw, 64px);
  font-weight: 750;
  letter-spacing: -0.045em;
  line-height: 1.12;
}

.page-hero .lead {
  max-width: var(--measure);
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 18px;
}

.updated {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums lining-nums;
  font-weight: 700;
}

.subscription-hero {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(320px, 5fr);
  align-items: start;
  gap: clamp(48px, 9vw, 112px);
}

.subscription-hero .page-hero-inner {
  max-width: none;
}

.plan-card {
  padding: 26px 28px 30px;
  border-top: 5px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: var(--study);
}

.plan-badge {
  display: block;
  margin-bottom: 34px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 800;
}

.plan-card h2 {
  margin-bottom: 8px;
  font-family: inherit;
  font-size: 27px;
  letter-spacing: -0.025em;
}

.plan-price {
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.check-list {
  display: grid;
  gap: 9px;
  margin: 24px 0 0;
  padding-left: 1.2em;
}

.check-list li {
  padding-left: 0.25em;
  font-weight: 700;
}

.check-list li::marker {
  color: var(--accent);
  content: "✓  ";
}

.section.tint {
  border-block: 1px solid var(--rule);
  background: var(--surface);
}

.store-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  margin-top: 28px;
}

.store-card {
  display: flex;
  min-height: 104px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  border-block: 1px solid var(--rule-strong);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 180ms var(--ease-standard), color 180ms var(--ease-standard), transform 120ms var(--ease-out);
}

.store-card:hover {
  border-color: var(--ink);
  color: var(--accent-dark);
  transform: translateY(-1px);
}

.store-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.store-card strong {
  display: block;
  margin-top: 2px;
  color: var(--ink);
  font-size: 18px;
}

.store-arrow {
  font-size: 22px;
}

.document-note {
  margin: 26px 0;
  padding: 18px 20px;
  border-block: 1px solid var(--rule-strong);
  background: var(--study);
}

.document-note.warning {
  background: color-mix(in srgb, var(--accent) 9%, var(--surface));
}

.steps {
  margin: 28px 0 0;
  padding: 0;
  border-top: 2px solid var(--ink);
  counter-reset: steps;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 28px;
  padding: 24px 0;
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  counter-increment: steps;
}

.steps li::before {
  color: var(--accent-dark);
  content: "手順 " counter(steps, decimal-leading-zero);
  font-size: 13px;
  font-variant-numeric: tabular-nums lining-nums;
  font-weight: 800;
}

.steps strong {
  color: var(--ink);
  font-size: 18px;
}

.faq-list {
  margin-top: 28px;
  border-top: 2px solid var(--ink);
}

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

.faq-list summary {
  position: relative;
  min-height: 64px;
  padding: 17px 48px 17px 0;
  font-weight: 750;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 4px;
  color: var(--accent);
  content: "+";
  font-family: system-ui, sans-serif;
  font-size: 22px;
  font-weight: 500;
  line-height: 1;
  transform: translateY(-50%);
}

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

.faq-list details p {
  max-width: var(--measure);
  margin: 0;
  padding: 0 48px 20px 0;
  color: var(--muted);
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(36px, 7vw, 80px);
  border-top: 2px solid var(--ink);
}

.support-card {
  min-height: 220px;
  padding: 26px 0 30px;
  border-bottom: 1px solid var(--rule);
}

.support-card h2 {
  margin-bottom: 10px;
  font-family: inherit;
  font-size: 22px;
  letter-spacing: -0.025em;
}

.support-card p {
  color: var(--muted);
}

.support-card .text-link {
  font-size: 14px;
}

.cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(32px, 7vw, 80px);
  padding: clamp(32px, 5vw, 56px);
  background: var(--ink);
  color: var(--surface);
}

.cta-panel h2 {
  margin-bottom: 10px;
  font-size: clamp(29px, 4vw, 42px);
  letter-spacing: -0.035em;
}

.cta-panel p {
  max-width: 66ch;
  margin-bottom: 0;
  color: color-mix(in srgb, var(--surface) 73%, var(--ink));
}

.cta-panel .button {
  border-color: var(--surface);
  background: var(--surface);
  color: var(--ink);
}

.document-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 760px);
  align-items: start;
  justify-content: space-between;
  gap: clamp(48px, 9vw, 112px);
  padding-block: clamp(64px, 8vw, 96px) clamp(96px, 12vw, 152px);
}

.document-nav {
  position: sticky;
  top: 96px;
  padding-block: 16px;
  border-block: 2px solid var(--ink);
}

.document-nav strong {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
}

.document-nav ol {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.document-nav a {
  display: block;
  min-height: 34px;
  padding: 4px 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

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

.document {
  min-width: 0;
  max-width: 760px;
}

.document section {
  padding: 38px 0;
  border-top: 1px solid var(--rule);
  scroll-margin-top: 96px;
}

.document section:first-child {
  padding-top: 0;
  border-top: 0;
}

.document h2 {
  margin-bottom: 18px;
  font-family: inherit;
  font-size: 25px;
  letter-spacing: -0.02em;
  line-height: 1.45;
}

.document h3 {
  margin: 28px 0 10px;
  font-size: 17px;
}

.document p,
.document li,
.document dd {
  color: color-mix(in srgb, var(--ink) 84%, var(--surface));
}

.document ul,
.document ol {
  padding-left: 1.25em;
}

.document li + li {
  margin-top: 8px;
}

.data-table {
  width: 100%;
  margin: 24px 0;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th,
.data-table td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}

.data-table tr:first-child th,
.data-table tr:first-child td {
  border-top: 2px solid var(--ink);
}

.data-table tr:last-child th,
.data-table tr:last-child td {
  border-bottom-color: var(--ink);
}

.data-table th {
  width: 30%;
  color: var(--ink);
  font-weight: 800;
}

.operator-card {
  margin-top: 22px;
  border-top: 2px solid var(--ink);
}

.operator-card > div,
.operator-card dt,
.operator-card dd {
  min-width: 0;
}

.operator-card {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 0 22px;
}

.operator-card dt,
.operator-card dd {
  margin: 0;
  padding-block: 11px;
  border-bottom: 1px solid var(--rule);
}

.operator-card dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.site-footer {
  border-top: 1px solid var(--rule);
  background: var(--surface);
}

.footer-shell {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  gap: 40px 64px;
  padding-block: 44px 30px;
}

.footer-brand p {
  max-width: 420px;
  margin: 13px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  justify-content: flex-end;
  gap: 10px 26px;
}

.footer-links a {
  min-height: 32px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums lining-nums;
}

@media (hover: hover) and (pointer: fine) {
  .brand:hover .brand-mark {
    background: var(--accent-dark);
  }
}

@media (max-width: 960px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 24px;
    left: 24px;
    display: none;
    padding: 8px 16px;
    border: 1px solid var(--rule-strong);
    background: var(--surface);
    box-shadow: 0 12px 30px color-mix(in srgb, var(--ink) 14%, transparent);
  }

  .site-nav[data-open="true"] {
    display: grid;
  }

  .site-nav a {
    min-height: 46px;
    border-bottom: 1px solid var(--rule);
  }

  .site-nav a:last-child {
    border-bottom: 0;
  }

  .site-nav a::after {
    display: none;
  }

  .hero,
  .subscription-hero,
  .privacy-promise {
    grid-template-columns: 1fr;
  }

  .showcase-heading {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .hero {
    gap: 64px;
    padding-top: 72px;
  }

  .catalog-register {
    width: min(100%, 660px);
  }

  .privacy-promise {
    gap: 56px;
  }

  .plan-strip {
    grid-template-columns: 150px minmax(0, 1fr);
  }

  .plan-strip .button {
    grid-column: 2;
    justify-self: start;
  }

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

  .document-nav {
    position: static;
    max-width: 760px;
  }

  .document-nav ol {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2px 24px;
  }
}

@media (max-width: 700px) {
  .nav-shell,
  .section-shell,
  .footer-shell {
    width: min(calc(100% - 32px), var(--content));
  }

  .brand-copy {
    font-size: 14px;
  }

  .site-notice {
    align-items: flex-start;
    flex-direction: column;
    gap: 0;
    padding-inline: 16px;
    text-align: left;
  }

  .site-nav {
    right: 16px;
    left: 16px;
  }

  .hero {
    gap: 48px;
    padding-block: 58px 64px;
  }

  .desktop-break {
    display: none;
  }

  .hero h1 {
    font-size: clamp(39px, 12vw, 54px);
    line-height: 1.12;
  }

  .action-row,
  .button-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .action-row .text-link {
    width: auto;
  }

  .catalog-register header,
  .catalog-register dl > div,
  .catalog-register > p {
    padding-inline: 16px;
  }

  .section {
    padding-block: 72px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 22px;
    margin-bottom: 38px;
  }

  .showcase-heading {
    margin-bottom: 38px;
  }

  .app-screen-grid {
    grid-template-columns: none;
    grid-auto-columns: minmax(280px, 82vw);
    grid-auto-flow: column;
    gap: 18px;
    margin-inline: -16px;
    padding: 0 16px 14px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-padding-inline: 16px;
    scroll-snap-type: inline mandatory;
    scrollbar-color: color-mix(in srgb, var(--surface) 30%, transparent) transparent;
  }

  .app-shot,
  .app-shot:nth-child(2) {
    margin-top: 0;
    scroll-snap-align: start;
  }

  .learning-sequence li {
    grid-template-columns: 1fr;
    gap: 8px;
    padding-block: 24px;
  }

  .data-section {
    padding-block: 80px;
  }

  .data-facts > div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .plan-section {
    padding-block: 40px;
  }

  .plan-strip {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 28px 22px;
  }

  .plan-strip .button {
    grid-column: auto;
    justify-self: stretch;
  }

  .page-hero {
    padding-block: 58px 46px;
  }

  .page-hero h1 {
    font-size: clamp(38px, 11vw, 54px);
  }

  .store-actions,
  .support-grid {
    grid-template-columns: 1fr;
  }

  .store-actions {
    gap: 16px;
  }

  .steps li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .support-card {
    min-height: auto;
  }

  .cta-panel {
    grid-template-columns: 1fr;
    padding: 28px 22px;
  }

  .document-nav ol {
    grid-template-columns: 1fr;
  }

  .data-table,
  .data-table tbody,
  .data-table tr,
  .data-table th,
  .data-table td {
    display: block;
    width: 100%;
  }

  .data-table tr {
    padding: 12px 0;
    border-bottom: 1px solid var(--rule);
  }

  .data-table th,
  .data-table td,
  .data-table tr:first-child th,
  .data-table tr:first-child td {
    padding: 3px 0;
    border: 0;
  }

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

  .operator-card dt {
    padding-bottom: 0;
    border-bottom: 0;
  }

  .operator-card dd {
    padding-top: 1px;
  }

  .footer-shell {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-content: start;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 4px;
  }
}

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

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

@media print {
  @page {
    margin: 18mm;
  }

  .site-header,
  .site-footer,
  .site-notice,
  .document-nav,
  .button,
  .button-row,
  .action-row {
    display: none !important;
  }

  body {
    background: var(--surface);
    color: var(--ink);
    font-size: 11pt;
  }

  .page-hero,
  .document-layout,
  .section {
    padding-block: 16px;
  }

  .document section,
  .data-table,
  .operator-card {
    break-inside: avoid;
  }

  .document a[href^="http"]::after {
    content: " (" attr(href) ")";
  }
}