/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.7;
  color: #1d1d1f;
  background: #fafafa;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Links ===== */
a {
  color: #0071e3;
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid #0071e3;
  outline-offset: 2px;
}

/* ===== Header ===== */
.site-header {
  background: #1a1a2e;
  color: #fff;
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-header a {
  color: #fff;
}

.site-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.site-nav a {
  font-size: 0.875rem;
  opacity: 0.85;
  transition: opacity 0.15s;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  opacity: 1;
  text-decoration: none;
}

/* ===== Main Content ===== */
.content {
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  flex: 1;
  width: 100%;
}

.content h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #1a1a2e;
  letter-spacing: -0.03em;
}

.content h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin-top: 2.25rem;
  margin-bottom: 0.75rem;
  color: #1a1a2e;
}

.content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.content p,
.content ul,
.content ol {
  margin-bottom: 1rem;
}

.content ul,
.content ol {
  padding-left: 1.5rem;
}

.content li {
  margin-bottom: 0.35rem;
}

.effective-date {
  font-size: 0.875rem;
  color: #6e6e73;
  margin-bottom: 2rem;
}

/* ===== Home Page Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.card {
  background: #fff;
  border: 1px solid #e5e5ea;
  border-radius: 12px;
  padding: 1.5rem;
  transition: box-shadow 0.15s, border-color 0.15s;
}

.card:hover {
  border-color: #0071e3;
  box-shadow: 0 2px 12px rgba(0, 113, 227, 0.08);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.9rem;
  color: #6e6e73;
  margin-bottom: 0;
}

/* ===== FAQ ===== */
.faq-item {
  background: #fff;
  border: 1px solid #e5e5ea;
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}

.faq-item h3 {
  margin-top: 0;
  font-size: 1.05rem;
}

/* ===== Footer ===== */
.site-footer {
  background: #1a1a2e;
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  padding: 1.5rem;
  font-size: 0.8rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.9);
}

/* ===== 404 ===== */
.error-page {
  text-align: center;
  padding-top: 6rem;
}

.error-page h1 {
  font-size: 4rem;
  margin-bottom: 0.25rem;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .content h1 {
    font-size: 1.6rem;
  }

  .content h2 {
    font-size: 1.15rem;
  }

  .content {
    padding: 1.75rem 1rem 3rem;
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}