:root {
  --primary: #448aff;
  --primary-dim: rgba(68, 138, 255, 0.15);
  --bg-base: #111111;
  --bg-surface: #202020;
  --bg-card: #2a2a2a;
  --bg-elevated: #363636;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.72);
  --text-muted: rgba(255, 255, 255, 0.55);
  --border: rgba(255, 255, 255, 0.12);
  --accent-green: #22e0b7;
  --accent-red: #ff5252;
  --max-width: 720px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--bg-base);
  background-image: radial-gradient(
      ellipse 80% 50% at 50% -20%,
      rgba(68, 138, 255, 0.12),
      transparent
    ),
    linear-gradient(180deg, var(--bg-base) 0%, #161616 100%);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover,
a:focus-visible {
  color: #6ba3ff;
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 2px;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(32, 32, 32, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.25rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.875rem;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, #1565c0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: #fff;
  flex-shrink: 0;
}

.brand-title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1.2;
}

.brand-subtitle {
  margin: 0.15rem 0 0;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
  font-weight: 600;
}

.site-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text-primary);
  text-decoration: none;
}

.site-nav a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.page-title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 4vw, 1.875rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.page-meta {
  margin: 0 0 2rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem 1.375rem;
  margin-bottom: 1.25rem;
}

.card-highlight {
  border-color: rgba(68, 138, 255, 0.35);
  background: linear-gradient(
    145deg,
    rgba(68, 138, 255, 0.08) 0%,
    var(--bg-card) 60%
  );
}

h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

h2:first-child {
  margin-top: 0;
}

h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

p {
  margin: 0 0 1rem;
  color: var(--text-secondary);
}

p:last-child {
  margin-bottom: 0;
}

ul,
ol {
  margin: 0 0 1rem;
  padding-left: 1.375rem;
  color: var(--text-secondary);
}

li {
  margin-bottom: 0.45rem;
}

li:last-child {
  margin-bottom: 0;
}

strong {
  color: var(--text-primary);
  font-weight: 600;
}

.disclaimer-box {
  border-left: 3px solid var(--accent-red);
  background: rgba(255, 82, 82, 0.08);
  padding: 1rem 1.125rem;
  border-radius: 0 12px 12px 0;
  margin: 1.5rem 0;
}

.disclaimer-box p {
  margin: 0;
  font-size: 0.9375rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  word-break: break-all;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.625rem 1.125rem;
  border-radius: 12px;
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.1s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff !important;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #5a9aff;
  color: #fff !important;
  text-decoration: none;
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary) !important;
  border: 1px solid var(--border);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: #404040;
  color: var(--text-primary) !important;
  text-decoration: none;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-surface);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.75rem 1.25rem 2rem;
  text-align: center;
}

.footer-inner p {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer-inner p:last-child {
  margin-bottom: 0;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.25rem;
  margin-bottom: 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
}

@media (max-width: 480px) {
  main {
    padding-top: 1.5rem;
  }

  .card {
    padding: 1.25rem 1rem;
  }

  .site-nav {
    font-size: 0.8125rem;
    gap: 0.25rem 1rem;
  }
}