:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-2: #eef3f8;
  --line: #d8e0ea;
  --text: #10243b;
  --muted: #50627a;
  --accent: #163b63;
  --accent-2: #295f93;
  --accent-soft: #e8f1fb;
  --shadow: 0 14px 40px rgba(16, 36, 59, 0.08);
  --radius: 20px;
  --radius-sm: 14px;
  --container: 1160px;
  --max-reading: 72ch;
  --focus: 0 0 0 4px rgba(41, 95, 147, 0.18);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(22, 59, 99, 0.08), transparent 34%),
    radial-gradient(circle at 85% 10%, rgba(41, 95, 147, 0.08), transparent 28%),
    var(--bg);
  line-height: 1.65;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent-2);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.18em;
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: none;
  box-shadow: var(--focus);
  border-radius: 10px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 1000;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 248, 251, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(216, 224, 234, 0.8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1.05rem;
  box-shadow: 0 12px 24px rgba(22, 59, 99, 0.2);
}

.brand small {
  display: block;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0;
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  color: var(--accent);
}

.menu-toggle svg {
  width: 22px;
  height: 22px;
}

.site-nav {
  position: absolute;
  inset: calc(100% + 1px) 0 auto 0;
  background: rgba(246, 248, 251, 0.98);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 16px 38px rgba(16, 36, 59, 0.08);
  display: none;
}

.site-nav.is-open {
  display: block;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0.75rem 0 1rem;
}

.site-nav li + li {
  margin-top: 0.15rem;
}

.site-nav a {
  display: block;
  padding: 0.95rem 1rem;
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent);
}

.hero {
  padding: 2.2rem 0 1.4rem;
}

.hero-grid {
  display: grid;
  gap: 1.25rem;
}

.hero-copy,
.panel,
.card,
.content-box,
.faq-item,
.cta-banner,
.section-aside {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(216, 224, 234, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 1.4rem;
}

.eyebrow {
  color: var(--accent-2);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  margin: 0 0 0.75rem;
}

h1,
h2,
h3,
h4 {
  color: var(--text);
  line-height: 1.18;
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.75rem);
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.35rem);
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: 0.55rem;
}

p {
  margin: 0 0 1rem;
}

.lead {
  font-size: 1.08rem;
  color: var(--muted);
  max-width: var(--max-reading);
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  border-radius: 999px;
  padding: 0.85rem 1.2rem;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 12px 26px rgba(22, 59, 99, 0.18);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-1px);
}

.btn-secondary {
  background: #fff;
  color: var(--accent);
  border-color: var(--line);
}

.meta-list {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  display: grid;
  gap: 0.6rem;
}

.meta-list li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  color: var(--muted);
}

.meta-list li::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 999px;
  margin-top: 0.45rem;
  flex: 0 0 auto;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.hero-media {
  overflow: hidden;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section {
  padding: 1rem 0 1.8rem;
}

.section-header {
  margin-bottom: 1rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

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

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

.card,
.content-box,
.faq-item,
.cta-banner,
.section-aside,
.panel {
  padding: 1.2rem;
}

.card h3,
.content-box h3,
.section-aside h3 {
  margin-bottom: 0.5rem;
}

.card p:last-child,
.content-box p:last-child,
.section-aside p:last-child {
  margin-bottom: 0;
}

.card-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.card-list li {
  padding: 0.9rem 1rem;
  border-radius: 16px;
  background: var(--surface-2);
  border: 1px solid rgba(216, 224, 234, 0.8);
}

.callout {
  border-left: 4px solid var(--accent-2);
  padding: 1rem 1rem 1rem 1.1rem;
  background: linear-gradient(180deg, rgba(41, 95, 147, 0.08), rgba(41, 95, 147, 0.03));
  border-radius: 0 16px 16px 0;
}

.breadcrumb {
  margin: 1rem 0 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.breadcrumb ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.breadcrumb li::after {
  content: "/";
  margin-left: 0.4rem;
  color: #9badc0;
}

.breadcrumb li:last-child::after {
  content: "";
}

.breadcrumb a {
  color: inherit;
}

.content {
  max-width: var(--max-reading);
}

.content ul,
.content ol {
  padding-left: 1.2rem;
  margin: 0 0 1rem;
}

.content li {
  margin-bottom: 0.45rem;
}

.knowledge {
  display: grid;
  gap: 1rem;
}

.knowledge .panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 251, 255, 0.92));
}

.faq {
  display: grid;
  gap: 0.9rem;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

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

.faq-item[open] {
  background: #fff;
}

.site-footer {
  margin-top: 2rem;
  padding: 2rem 0 2.4rem;
  border-top: 1px solid rgba(216, 224, 234, 0.85);
  background: rgba(255, 255, 255, 0.5);
}

.footer-grid {
  display: grid;
  gap: 1.25rem;
}

.footer-links {
  display: grid;
  gap: 0.55rem;
}

.footer-links a {
  color: var(--text);
}

.fineprint {
  font-size: 0.93rem;
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(216, 224, 234, 0.9);
  background: #fff;
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.inline-link-list {
  display: grid;
  gap: 0.55rem;
}

.inline-link-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.logo-rail {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.logo-rail figure {
  margin: 0;
  padding: 0.85rem;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--line);
}

.logo-rail figcaption {
  margin-top: 0.6rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.section-split {
  display: grid;
  gap: 1rem;
}

@media (min-width: 700px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: stretch;
  }

  .grid.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid.three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1.2fr 0.8fr 1fr;
  }

  .logo-rail {
    grid-template-columns: repeat(3, 1fr);
  }

  .section-split {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

@media (min-width: 980px) {
  .menu-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    display: block !important;
    background: transparent;
    border: 0;
    box-shadow: none;
  }

  .site-nav ul {
    display: flex;
    gap: 0.2rem;
    align-items: center;
    padding: 0;
  }

  .site-nav li + li {
    margin-top: 0;
  }

  .site-nav a {
    border-radius: 999px;
    padding: 0.72rem 0.95rem;
  }

  .hero {
    padding-top: 2.8rem;
  }
}