/* Okure-nai サポートサイト — プライバシー・利用規約（フラット・シャドウなし） */
:root {
  --brand: #1a2f7a;
  --brand-hover: #243894;
  --surface: #ffffff;
  --surface-muted: #f4f6fb;
  --border: #c9d0e5;
  --text: #16181f;
  --text-muted: #4a5060;
  --footer-bg: #16181f;
  --max: 40rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: var(--text);
  line-height: 1.7;
  font-size: 1rem;
  background: var(--surface-muted);
}

.section-label {
  font-family: "Jost", sans-serif;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-hover);
  margin: 0 0 0.5rem;
}

.site-header .section-label {
  color: rgba(255, 255, 255, 0.82);
}

.site-header {
  background: var(--brand);
  color: #fff;
  padding: 2.5rem 1.5rem 2.25rem;
}

.site-header-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.site-title {
  font-family: "Jost", sans-serif;
  font-weight: 600;
  font-size: 1.625rem;
  letter-spacing: 0.03em;
  margin: 0 0 0.6rem;
  line-height: 1.25;
}

.site-tagline {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9375rem;
  line-height: 1.6;
  max-width: 36em;
}

/* ナビ: 1px の区切りのみ（グリッドギャップ）、ホバーは背景色のみ */
.nav-cards {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
  border-top: none;
  background: var(--border);
}

@media (max-width: 519px) {
  .nav-cards {
    grid-template-columns: 1fr;
  }
}

.nav-card {
  padding: 0.95rem 1.1rem;
  text-decoration: none;
  color: var(--text);
  background: var(--surface);
  transition: background-color 0.1s ease, color 0.1s ease;
}

.nav-card:hover {
  background: var(--surface-muted);
}

.nav-card:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  z-index: 1;
}

.nav-card strong {
  font-family: "Jost", sans-serif;
  font-weight: 600;
  display: block;
  color: var(--brand-hover);
  margin-bottom: 0.2rem;
  font-size: 0.9375rem;
}

.nav-card span {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.5rem 3.5rem;
  background: var(--surface-muted);
}

main > p:first-of-type {
  margin-top: 0;
}

.section-tint {
  background: var(--surface);
  padding: 1.75rem 1.35rem;
  margin: 0 0 1.5rem;
  border: 1px solid var(--border);
}

.policy-block {
  margin-bottom: 2.5rem;
}

.policy-block h1 {
  font-family: "Jost", sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--brand);
  margin: 0 0 0.4rem;
  line-height: 1.3;
}

.policy-meta {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0 0 1.35rem;
}

.policy-block h2 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.6rem 0 0.5rem;
  color: var(--text);
  letter-spacing: 0.02em;
}

.policy-block p {
  margin: 0.6rem 0;
}

.policy-block ul {
  margin: 0.6rem 0 0.6rem 1.25rem;
  padding: 0;
}

.policy-block li {
  margin: 0.35rem 0;
}

.policy-block code {
  font-size: 0.875em;
  background: var(--surface-muted);
  padding: 0.1em 0.35em;
  border: 1px solid var(--border);
}

.policy-block table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin: 1rem 0;
  background: var(--surface);
}

.policy-block th,
.policy-block td {
  border: 1px solid var(--border);
  padding: 0.55rem 0.65rem;
  vertical-align: top;
}

.policy-block th {
  background: var(--surface-muted);
  text-align: left;
  font-weight: 600;
}

.policy-block a {
  color: var(--brand-hover);
  text-underline-offset: 0.15em;
}

.policy-block a:hover {
  color: var(--brand);
}

.lang-divider {
  margin: 2.75rem 0 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.contact-box {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1rem 1.15rem;
  margin-top: 0.85rem;
}

.contact-box a {
  word-break: break-all;
}

.site-footer {
  background: var(--footer-bg);
  color: #d1d5db;
  padding: 1.75rem 1.5rem;
  font-size: 0.8125rem;
  line-height: 1.65;
}

.site-footer-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.site-footer a {
  color: #a5b4fc;
  text-underline-offset: 0.2em;
}

.site-footer a:hover {
  color: #c7d2fe;
}

.page-hero {
  padding-bottom: 0;
}

.page-hero h1 {
  font-family: "Jost", sans-serif;
  font-size: 1.375rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
  line-height: 1.3;
}