:root {
  --cde-blue: #0d47a1;
  --cde-blue-600: #0b3d8d;
  --cde-light: #f6f8fb;
  --text: #1b1f24;
  --muted: #5a6570;
  --border: #e1e6ee;
  --focus: #ffbf47;
  --white: #ffffff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

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

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  position: static;
  width: auto;
  height: auto;
  background: var(--focus);
  color: #000;
  padding: 0.5rem 0.75rem;
  display: inline-block;
}

/* Header */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}
.brand-logo {
  width: 40px;
  height: 40px;
}
.brand-text {
  white-space: nowrap;
}
.main-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 1rem;
  align-items: center;
}
.main-nav a {
  color: var(--text);
  text-decoration: none;
  padding: 0.4rem 0.2rem;
}
.main-nav a:hover,
.main-nav a:focus {
  color: var(--cde-blue);
}
.main-nav .sep {
  color: var(--border);
}

/* Hero */
.hero {
  background: linear-gradient(180deg, rgba(13,71,161,0.08), transparent 60%);
  padding: 2.5rem 0 1rem;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  align-items: center;
  gap: 2rem;
}
.hero h1 {
  font-size: clamp(1.8rem, 2.5vw, 2.4rem);
  margin: 0 0 0.5rem;
}
.lead {
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 1rem;
}
.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.hero-visual img {
  width: 220px;
  margin: 0 auto;
  opacity: 0.95;
}

/* Sections */
.section {
  padding: 2rem 0;
}
.bg-light {
  background: var(--cde-light);
}
.section h2 {
  margin-top: 0;
  font-size: 1.6rem;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat( auto-fit, minmax(260px, 1fr) );
  gap: 1rem;
  align-items: stretch;
}
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  box-shadow: 0 1px 0 rgba(0,0,0,0.02);
}
.card h3 {
  margin-top: 0;
}
.meta {
  color: var(--muted);
  font-size: 0.95rem;
}

/* Lists */
.keylist {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
}
.keylist li { margin: 0.25rem 0; }

/* Buttons */
.btn {
  display: inline-block;
  border: 1px solid var(--cde-blue);
  color: var(--cde-blue);
  background: transparent;
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}
.btn:hover,
.btn:focus {
  background: rgba(13,71,161,0.06);
}
.btn.primary {
  background: var(--cde-blue);
  color: #fff;
  border-color: var(--cde-blue);
}
.btn.primary:hover,
.btn.primary:focus {
  background: var(--cde-blue-600);
}

/* Socials */
.socials {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
}
.socials li { margin: 0.25rem 0; }

/* Notes */
.note {
  border-left: 4px solid var(--cde-blue);
  background: #eef3fb;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  color: #0a2f6a;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: #fafbfd;
  margin-top: 1rem;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}
.site-footer a {
  color: var(--text);
  text-decoration: none;
  margin-left: 1rem;
}
.site-footer a:hover,
.site-footer a:focus {
  color: var(--cde-blue);
}

/* Responsive */
@media (max-width: 800px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .hero-visual {
    display: none;
  }
  .main-nav ul {
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
  }
}