:root {
  --bg: #0a0a0f;
  --bg-elevated: #14141e;
  --border: rgba(255, 255, 255, 0.08);
  --text-primary: #f5f5f7;
  --text-secondary: rgba(245, 245, 247, 0.7);
  --text-tertiary: rgba(245, 245, 247, 0.5);
  --gold: #ffce00;
  --gold-soft: rgba(255, 206, 0, 0.15);
  --max-width: 720px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.01em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

header.site {
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--border);
}

header.site .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

header.site .brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--gold), #ff9a00);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  color: #0a0a0f;
  letter-spacing: -0.04em;
}

header.site .brand-name {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

header.site .brand-name span {
  color: var(--text-tertiary);
  font-weight: 400;
  margin-left: 4px;
}

nav.site {
  margin-top: 16px;
  display: flex;
  gap: 24px;
  font-size: 15px;
}

nav.site a {
  color: var(--text-secondary);
  text-decoration: none;
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

nav.site a:hover,
nav.site a.active {
  color: var(--gold);
  border-color: var(--gold);
}

main {
  flex: 1;
  padding: 56px 0 80px;
}

main h1 {
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

main h1 .accent {
  color: var(--gold);
}

main .lead {
  font-size: 19px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 540px;
}

main h2 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 48px 0 16px;
  color: var(--text-primary);
}

main h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 28px 0 8px;
  color: var(--text-primary);
}

main p {
  margin-bottom: 16px;
  color: var(--text-secondary);
}

main p strong,
main li strong {
  color: var(--text-primary);
  font-weight: 600;
}

main ul,
main ol {
  margin: 0 0 16px 20px;
  color: var(--text-secondary);
}

main li {
  margin-bottom: 8px;
}

main a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 206, 0, 0.3);
  transition: border-color 0.15s;
}

main a:hover {
  border-color: var(--gold);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 24px 0 40px;
}

.feature {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}

.feature-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--gold-soft);
  color: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 12px;
}

.feature h3 {
  font-size: 16px;
  margin: 0 0 6px;
}

.feature p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 32px 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  transition: transform 0.1s, opacity 0.15s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--gold);
  color: #0a0a0f;
  border: 1px solid var(--gold);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--gold-soft);
  color: var(--gold);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

footer.site {
  border-top: 1px solid var(--border);
  padding: 32px 0 48px;
  font-size: 14px;
  color: var(--text-tertiary);
}

footer.site .container {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  justify-content: space-between;
}

footer.site a {
  color: var(--text-secondary);
  text-decoration: none;
}

footer.site a:hover {
  color: var(--gold);
}

.faq summary {
  cursor: pointer;
  padding: 16px 0;
  font-weight: 500;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
  list-style: none;
  position: relative;
  padding-right: 32px;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 300;
  color: var(--text-tertiary);
  transition: transform 0.2s;
}

.faq[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.faq[open] summary {
  color: var(--gold);
}

.faq .answer {
  padding: 16px 0 24px;
  color: var(--text-secondary);
}

.faq .answer p:last-child {
  margin-bottom: 0;
}

@media (max-width: 480px) {
  main {
    padding: 40px 0 64px;
  }

  main h1 {
    font-size: 32px;
  }

  main .lead {
    font-size: 17px;
  }
}