:root {
  --ink: #252a28;
  --muted: #666d69;
  --paper: #ffffff;
  --accent: #315d49;
  --line: #e5e7e5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.9;
  overflow-wrap: anywhere;
}

a { color: var(--accent); }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 8px 12px;
  background: var(--ink);
  color: white;
  transform: translateY(-150%);
}

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

.site-header {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px clamp(20px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--ink);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.back-link {
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
}

.back-link:hover { text-decoration: underline; }

.privacy-main {
  width: min(100% - 40px, 720px);
  margin: 0 auto;
  padding: 72px 0 112px;
}

.privacy-heading { margin-bottom: 56px; }

h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.35;
}

h1 br { display: none; }

.app-name {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.policy > p:first-child {
  margin: 0 0 52px;
  color: #4d5451;
}

.policy section { margin-top: 48px; }

.policy h2 {
  margin: 0 0 16px;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.5;
}

.policy p { margin: 0; color: #4d5451; }

.policy p + p { margin-top: 16px; }
.policy ul { margin: 16px 0; padding-left: 1.5em; color: #4d5451; }
.policy li + li { margin-top: 4px; }

.external-link {
  margin-top: 16px !important;
  font-size: 14px;
}

.external-link strong { color: var(--ink); font-weight: 600; }
.external-link a { color: var(--accent); }

.contact-link a { color: var(--accent); }

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px clamp(20px, 5vw, 56px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p { margin: 0; font-size: 12px; }
.site-footer > a:last-child { color: var(--muted); font-size: 12px; text-decoration: none; }
.site-footer > a:last-child:hover { text-decoration: underline; }

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

@media (max-width: 600px) {
  .privacy-main { width: min(100% - 36px, 720px); padding: 52px 0 80px; }
  .privacy-heading { margin-bottom: 42px; }
  h1 br { display: initial; }
  .policy > p:first-child { margin-bottom: 42px; }
  .policy section { margin-top: 40px; }
  .site-footer { align-items: flex-start; flex-direction: column; }
}