:root {
  --bg: #061018;
  --surface: #0c1c2a;
  --surface-soft: #102536;
  --text: #f4f7fb;
  --muted: #afbdca;
  --accent: #3ecf8e;
  --accent-light: #7dd3fc;
  --line: rgba(255, 255, 255, 0.13);
  --shadow: 0 22px 55px rgba(0, 0, 0, 0.28);
  --radius: 18px;
  --body: "Sora", system-ui, sans-serif;
  --display: "Fraunces", Georgia, serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(900px 500px at 5% -5%, rgba(125, 211, 252, 0.15), transparent 55%),
    radial-gradient(800px 500px at 100% 5%, rgba(62, 207, 142, 0.13), transparent 52%),
    linear-gradient(165deg, var(--bg), #0a1a27 58%, #07131d);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.7;
}

a {
  color: var(--accent-light);
  text-underline-offset: 3px;
}

a:hover,
a:focus-visible {
  color: var(--accent);
}

.site-header,
.content,
.site-footer {
  width: min(820px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}

.back-link {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.content {
  padding-bottom: 3rem;
}

.breadcrumb {
  margin: 0.75rem 0 1.2rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.breadcrumb a {
  color: var(--muted);
}

.article {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background: rgba(12, 28, 42, 0.79);
  box-shadow: var(--shadow);
}

.hero {
  padding: clamp(1.6rem, 5vw, 3.2rem);
  background:
    linear-gradient(135deg, rgba(125, 211, 252, 0.08), transparent 48%),
    linear-gradient(315deg, rgba(62, 207, 142, 0.1), transparent 46%);
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2 {
  font-family: var(--display);
  letter-spacing: -0.015em;
  line-height: 1.17;
}

h1 {
  max-width: 18ch;
  margin: 0 0 1rem;
  font-size: clamp(2rem, 6vw, 3.4rem);
}

h2 {
  margin: 2.1rem 0 0.65rem;
  font-size: clamp(1.45rem, 4vw, 2rem);
}

h3 {
  margin: 1.5rem 0 0.45rem;
  font-size: 1.08rem;
}

.intro {
  max-width: 64ch;
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.article-body {
  padding: 0 clamp(1.35rem, 5vw, 3.2rem) 2.7rem;
}

.article-body p,
.article-body li {
  color: var(--muted);
}

.article-body strong {
  color: var(--text);
}

.article-body ul,
.article-body ol {
  padding-left: 1.35rem;
}

.article-body li + li {
  margin-top: 0.45rem;
}

.note {
  margin: 1.6rem 0;
  padding: 1rem 1.1rem;
  border-left: 3px solid var(--accent-light);
  border-radius: 0 12px 12px 0;
  background: rgba(125, 211, 252, 0.08);
  color: var(--muted);
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 1.2rem 0;
}

.check-card {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-soft);
}

.check-card h3 {
  margin-top: 0;
}

.check-card p {
  margin-bottom: 0;
  font-size: 0.94rem;
}

.cta {
  margin: 2.25rem 0 1rem;
  padding: 1.3rem;
  border: 1px solid rgba(62, 207, 142, 0.28);
  border-radius: var(--radius);
  background: rgba(62, 207, 142, 0.08);
  text-align: center;
}

.cta h2 {
  margin-top: 0;
}

.cta p {
  margin: 0.5rem auto 1rem;
  max-width: 54ch;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.7rem 1.2rem;
  border-radius: 999px;
  color: #041016;
  background: linear-gradient(135deg, var(--accent), #6ee7b7);
  box-shadow: 0 9px 24px rgba(62, 207, 142, 0.24);
  font-weight: 700;
  text-decoration: none;
}

.button:hover,
.button:focus-visible {
  color: #041016;
}

.faq details {
  margin-top: 0.7rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(7, 18, 28, 0.42);
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
}

.faq p {
  margin: 0.65rem 0 0;
}

.related {
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}

.related ul {
  margin-bottom: 0;
}

.disclaimer {
  margin-top: 1.8rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.site-footer {
  padding: 0 0 2rem;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
}

@media (max-width: 620px) {
  .site-header,
  .content,
  .site-footer {
    width: min(100% - 1.2rem, 820px);
  }

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

  .back-link {
    font-size: 0.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}