:root {
  --tf-bg: #f4f6f6;
  --tf-surface: #ffffff;
  --tf-text: #0f1111;
  --tf-muted: #565959;
  --tf-border: #d5d9d9;
  --tf-accent: #007185;
  --tf-accent-dark: #005f70;
  --tf-max: 760px;
  --tf-page-max: 1080px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Sora", system-ui, -apple-system, sans-serif;
  background: var(--tf-bg);
  color: var(--tf-text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--tf-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  color: var(--tf-accent-dark);
}

.site-header {
  background: var(--tf-surface);
  border-bottom: 1px solid var(--tf-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header__inner {
  max-width: var(--tf-page-max);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--tf-text);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
  color: var(--tf-text);
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.site-nav {
  display: flex;
  gap: 20px;
  font-size: 0.9rem;
}

.site-nav a {
  color: var(--tf-muted);
  font-weight: 600;
}

.site-nav a.is-active,
.site-nav a:hover {
  color: var(--tf-accent);
  text-decoration: none;
}

main {
  max-width: var(--tf-page-max);
  margin: 0 auto;
  padding: 40px 24px 72px;
}

.hero {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.2;
  margin: 0 0 12px;
}

.hero p {
  color: var(--tf-muted);
  font-size: 1.05rem;
  margin: 0;
}

.hero-card {
  background: var(--tf-surface);
  border: 1px solid var(--tf-border);
  border-radius: 12px;
  padding: 40px 32px;
  margin-bottom: 32px;
}

.link-grid {
  display: grid;
  gap: 16px;
  max-width: 480px;
  margin: 32px auto 0;
}

.link-card {
  display: block;
  background: var(--tf-surface);
  border: 1px solid var(--tf-border);
  border-radius: 10px;
  padding: 20px 22px;
  text-align: left;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.link-card:hover {
  border-color: var(--tf-accent);
  box-shadow: 0 4px 18px rgba(0, 113, 133, 0.08);
  text-decoration: none;
}

.link-card strong {
  display: block;
  color: var(--tf-text);
  margin-bottom: 4px;
}

.link-card span {
  color: var(--tf-muted);
  font-size: 0.92rem;
}

.legal-doc {
  max-width: var(--tf-max);
  margin: 0 auto;
}

.legal-doc__meta {
  color: var(--tf-muted);
  font-size: 0.92rem;
  margin-bottom: 28px;
}

.legal-doc h1 {
  font-size: clamp(1.65rem, 3.5vw, 2.1rem);
  line-height: 1.25;
  margin: 0 0 8px;
}

.legal-doc h2 {
  font-size: 1.2rem;
  margin: 36px 0 12px;
  padding-top: 8px;
  border-top: 1px solid var(--tf-border);
}

.legal-doc h2:first-of-type {
  border-top: none;
  padding-top: 0;
}

.legal-doc h3 {
  font-size: 1rem;
  margin: 20px 0 8px;
}

.legal-doc p,
.legal-doc li {
  color: #232f3e;
}

.legal-doc ul,
.legal-doc ol {
  padding-left: 1.25rem;
  margin: 0 0 16px;
}

.legal-doc li {
  margin-bottom: 6px;
}

.toc {
  background: var(--tf-surface);
  border: 1px solid var(--tf-border);
  border-radius: 10px;
  padding: 20px 24px;
  margin: 28px 0 36px;
}

.toc h2 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--tf-muted);
  margin: 0 0 12px;
  border: none;
  padding: 0;
}

.toc ol {
  margin: 0;
  padding-left: 1.2rem;
}

.toc a {
  font-weight: 500;
}

.contact-box {
  background: #eef7f9;
  border: 1px solid #b8dde5;
  border-radius: 10px;
  padding: 18px 20px;
  margin-top: 32px;
}

.contact-box p {
  margin: 0;
}

.site-footer {
  border-top: 1px solid var(--tf-border);
  background: var(--tf-surface);
  padding: 28px 24px;
  text-align: center;
  color: var(--tf-muted);
  font-size: 0.88rem;
}

.site-footer a {
  font-weight: 600;
}

@media (max-width: 600px) {
  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  main {
    padding-top: 28px;
  }

  .hero-card {
    padding: 28px 20px;
  }
}