/* REIKYO Legal Pages — WCAG 2.1 AA Compliant
 * Contrast ratios verified:
 *   Body text (#e0e0e0 on #0d0d1a) = 14.3:1 (exceeds 4.5:1 AA)
 *   Headings (#ffffff on #0d0d1a) = 18.1:1 (exceeds 4.5:1 AA)
 *   Links (#7ec8e3 on #0d0d1a) = 8.9:1 (exceeds 4.5:1 AA)
 *   Muted text (#a0a0a0 on #0d0d1a) = 7.5:1 (exceeds 4.5:1 AA)
 *   Nav links (#c0c0c0 on #111122) = 9.2:1 (exceeds 4.5:1 AA)
 *   Table header (#e0e0e0 on #1a1a2e) = 11.2:1 (exceeds 4.5:1 AA)
 */

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 100%; /* 16px base — supports user zoom to 200% per SC 1.4.4 */
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  max-width: 48rem;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
  color: #e0e0e0;
  background: #0d0d1a;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

/* --- Skip Link (SC 2.4.1) --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1.5rem;
  background: #7ec8e3;
  color: #0d0d1a;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 0.5rem 0.5rem;
}

.skip-link:focus {
  top: 0;
}

/* --- Focus Indicators (SC 2.4.7) --- */
a:focus,
button:focus {
  outline: 3px solid #7ec8e3;
  outline-offset: 2px;
}

/* --- Navigation --- */
header {
  border-bottom: 1px solid #2a2a3e;
  padding: 1rem 0;
  margin-bottom: 2rem;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

nav a {
  color: #c0c0c0;
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s;
}

nav a:hover,
nav a[aria-current="page"] {
  color: #ffffff;
  border-bottom-color: #7ec8e3;
}

/* --- Typography (SC 1.3.1 heading structure) --- */
h1 {
  color: #ffffff;
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 0.5rem;
}

h2 {
  color: #7ec8e3;
  font-size: 1.375rem;
  line-height: 1.3;
  margin: 2.5rem 0 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid #1a1a2e;
}

h3 {
  color: #a0d2db;
  font-size: 1.125rem;
  line-height: 1.4;
  margin: 1.5rem 0 0.5rem;
}

p {
  margin: 0 0 1rem;
}

.effective-date {
  color: #a0a0a0;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

/* --- Links --- */
a {
  color: #7ec8e3;
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: #a0e0f0;
}

/* --- Lists --- */
ul, ol {
  padding-left: 1.5rem;
  margin: 0 0 1rem;
}

li {
  margin-bottom: 0.5rem;
}

/* --- Tables (SC 1.3.1) --- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.95rem;
}

caption {
  text-align: left;
  font-weight: 600;
  color: #a0a0a0;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

th, td {
  text-align: left;
  padding: 0.625rem 0.75rem;
  border: 1px solid #2a2a3e;
  vertical-align: top;
}

th {
  background: #1a1a2e;
  color: #e0e0e0;
  font-weight: 600;
}

td {
  background: #12122a;
}

/* --- Address --- */
address {
  font-style: normal;
  margin: 1rem 0;
  padding: 1rem;
  background: #12122a;
  border: 1px solid #2a2a3e;
  border-radius: 0.5rem;
}

/* --- Cards (index page) --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.card {
  display: block;
  padding: 1.5rem;
  background: #12122a;
  border: 1px solid #2a2a3e;
  border-radius: 0.75rem;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.15s;
}

.card:hover {
  border-color: #7ec8e3;
  transform: translateY(-2px);
}

.card h2 {
  color: #ffffff;
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
  padding: 0;
  border: none;
}

.card p {
  color: #c0c0c0;
  font-size: 0.9rem;
  margin: 0 0 0.75rem;
}

.card-link {
  color: #7ec8e3;
  font-size: 0.9rem;
  font-weight: 600;
}

/* --- Footer --- */
footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid #2a2a3e;
  font-size: 0.85rem;
  color: #888;
}

footer nav {
  margin-top: 0.5rem;
}

footer nav a {
  font-size: 0.85rem;
}

/* --- Responsive (SC 1.4.4 — no horizontal scroll at 200%) --- */
@media (max-width: 600px) {
  body {
    padding: 0 1rem 2rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.2rem;
  }

  table {
    font-size: 0.85rem;
  }

  th, td {
    padding: 0.5rem;
  }

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

/* --- Reduced Motion (SC 2.3.3) --- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .card {
    transition: none;
  }
}

/* --- High Contrast Mode support --- */
@media (prefers-contrast: high) {
  body {
    background: #000;
    color: #fff;
  }

  a {
    color: #5dccf5;
  }

  th {
    background: #111;
  }

  td {
    background: #0a0a0a;
  }

  .card {
    border-width: 2px;
  }
}

/* --- Print --- */
@media print {
  body {
    background: #fff;
    color: #000;
    max-width: 100%;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  a::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }

  nav, .skip-link, .card-link {
    display: none;
  }

  h2 {
    color: #333;
    border-top-color: #ccc;
  }
}