:root {
  color-scheme: light;
  --ink: #111111;
  --muted: #5f5f5f;
  --line: #d8d8d8;
  --soft-line: #e9e9e9;
  --paper: #ffffff;
  --subtle: #f7f7f7;
  --content-width: 920px;
  --header-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 28px;
}

body {
  min-width: 280px;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 Arial, "Helvetica Neue", Helvetica, sans-serif;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 14px;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

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

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

.header-inner {
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.app-identity {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--ink);
  text-decoration: none;
}

.app-icon,
.identity-copy small {
  display: none;
}

.identity-copy strong {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 14px;
  font-weight: 600;
}

.language-switcher a,
.language-current {
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
}

.language-switcher a {
  color: var(--muted);
  text-decoration: none;
}

.language-switcher a:hover {
  color: var(--ink);
  text-decoration: underline;
}

.language-current {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.hero {
  background: var(--paper);
}

.hero-inner {
  padding: 64px 0 46px;
  text-align: center;
}

.eyebrow {
  display: none;
}

h1 {
  max-width: 820px;
  margin: 0 auto;
  font-size: clamp(36px, 5vw, 50px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.hero-lead {
  max-width: 760px;
  margin: 22px auto 0;
  color: #333333;
  font-size: 17px;
  line-height: 1.65;
}

.policy-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 0;
  margin-top: 22px;
  color: var(--muted);
  font-size: 14px;
}

.policy-meta span + span::before {
  margin: 0 12px;
  color: #a0a0a0;
  content: "|";
}

.page-layout {
  padding: 0 0 80px;
}

.toc {
  margin-bottom: 38px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 28px 0 20px;
}

.toc-title {
  margin: 0 0 14px;
  font-size: 22px;
  font-weight: 600;
}

.toc nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 42px;
}

.toc a {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--soft-line);
  color: #2c2c2c;
  text-decoration: none;
}

.toc a::after {
  margin-left: 16px;
  color: #777777;
  content: "›";
  font-size: 22px;
  line-height: 1;
}

.toc a:hover {
  color: #000000;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.content {
  min-width: 0;
}

.summary {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 30px 0;
}

.summary h2 {
  margin: 0 0 18px;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.quick-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.quick-fact {
  padding: 0 24px;
}

.quick-fact:first-child {
  padding-left: 0;
}

.quick-fact:last-child {
  padding-right: 0;
}

.quick-fact + .quick-fact {
  border-left: 1px solid var(--line);
}

.quick-fact strong,
.quick-fact span {
  display: block;
}

.quick-fact strong {
  margin-bottom: 5px;
  font-size: 16px;
}

.quick-fact span {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.policy-section {
  border-bottom: 1px solid var(--line);
  padding: 42px 0;
}

.section-heading {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 20px;
}

.section-number {
  min-width: 28px;
  color: var(--ink);
  font-size: 22px;
  font-weight: 600;
}

.section-number::after {
  content: ".";
}

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

.section-heading h2 {
  margin: 0;
  font-size: 28px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.015em;
}

p {
  margin-bottom: 15px;
}

p:last-child {
  margin-bottom: 0;
}

ul {
  margin: 0 0 18px;
  padding-left: 22px;
}

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

.facts {
  display: grid;
  grid-template-columns: minmax(210px, 0.38fr) 1fr;
  margin: 0;
  border-top: 1px solid var(--line);
}

.facts dt,
.facts dd {
  margin: 0;
  border-bottom: 1px solid var(--line);
  padding: 13px 0;
}

.facts dt {
  padding-right: 24px;
  font-weight: 600;
}

code {
  background: var(--subtle);
  padding: 2px 5px;
  color: var(--ink);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

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

.permission-item {
  display: grid;
  grid-template-columns: minmax(220px, 0.4fr) 1fr;
  gap: 32px;
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}

.permission-name h3 {
  margin: 0 0 4px;
  font-size: 16px;
  line-height: 1.45;
}

.platform {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.permission-item p {
  color: #333333;
}

.service-list {
  display: block;
  margin: 18px 0;
  padding-left: 22px;
  list-style: disc;
}

.service-list li {
  padding-left: 4px;
}

.service-list strong,
.service-list span {
  display: inline;
}

.service-list strong::after {
  content: ": ";
}

.service-list span {
  color: #333333;
}

.contact-panel {
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 22px 0;
}

.contact-panel a {
  font-weight: 600;
}

footer {
  border-top: 1px solid var(--line);
  background: var(--paper);
  color: var(--muted);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 0;
  font-size: 13px;
}

.footer-inner a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}

@media (max-width: 720px) {
  .header-inner,
  .footer-inner,
  .hero-inner,
  .page-layout {
    width: min(calc(100% - 32px), var(--content-width));
  }

  .header-inner {
    min-height: 60px;
  }

  .header-inner {
    gap: 10px;
  }

  .language-switcher {
    font-size: 13px;
  }

  .language-switcher a,
  .language-current {
    min-width: 40px;
    padding-inline: 6px;
  }

  .hero-inner {
    padding: 44px 0 34px;
    text-align: left;
  }

  h1 {
    font-size: 34px;
    line-height: 1.2;
  }

  .hero-lead {
    margin-top: 16px;
    font-size: 16px;
  }

  .policy-meta {
    display: grid;
    justify-content: start;
    gap: 2px;
    margin-top: 16px;
  }

  .policy-meta span + span::before {
    display: none;
  }

  .toc {
    margin-bottom: 22px;
    padding-top: 22px;
  }

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

  .summary {
    padding: 26px 0;
  }

  .quick-facts {
    grid-template-columns: 1fr;
  }

  .quick-fact,
  .quick-fact:first-child,
  .quick-fact:last-child {
    padding: 14px 0;
  }

  .quick-fact:first-child {
    padding-top: 0;
  }

  .quick-fact:last-child {
    padding-bottom: 0;
  }

  .quick-fact + .quick-fact {
    border-top: 1px solid var(--soft-line);
    border-left: 0;
  }

  .policy-section {
    padding: 32px 0;
  }

  .section-heading {
    gap: 7px;
  }

  .section-number {
    min-width: 25px;
    font-size: 20px;
  }

  .section-heading h2,
  .summary h2 {
    font-size: 24px;
  }

  .facts,
  .permission-item {
    grid-template-columns: 1fr;
  }

  .facts dt {
    border-bottom: 0;
    padding: 12px 0 2px;
  }

  .facts dd {
    padding: 0 0 12px;
  }

  .permission-item {
    gap: 8px;
    padding: 18px 0;
  }

  .footer-inner {
    display: grid;
    gap: 4px;
  }
}

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

@media print {
  .site-header,
  .toc,
  footer {
    display: none;
  }

  .hero-inner,
  .page-layout {
    width: 100%;
  }

  .hero-inner {
    padding: 0 0 24px;
    text-align: left;
  }

  .page-layout {
    padding: 0;
  }

  .policy-section {
    break-inside: avoid;
  }
}