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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #040814;
  color: #e8f1ff;
}

a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5,10,25,0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
}

.logo {
  font-weight: 800;
  letter-spacing: .04em;
  font-size: 16px;
}

.site-header nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-header nav a {
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: rgba(232,241,255,0.78);
}

.site-header nav a:hover {
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
}

.banner-wrap {
  background: #020612;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  text-align: center;
}

.top-banner {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.main-content {
  padding: 28px 20px 40px;
}

.hero {
  padding: 10px 0 24px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.hero h1 {
  font-size: clamp(32px, 4vw, 46px);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0 0 14px;
  color: rgba(232,241,255,0.80);
  max-width: 70ch;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(26,165,248,0.10);
  border: 1px solid rgba(26,165,248,0.40);
  font-size: 12px;
  margin-bottom: 12px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.18);
  background: linear-gradient(135deg, #1aa5f8, #3c8bff);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  margin-top: 8px;
  cursor: pointer;
}

.btn-primary:hover {
  filter: brightness(1.05);
}

.grid-2 {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 24px;
  margin-top: 22px;
}

@media (max-width: 900px) {
  .grid-2 {
    grid-template-columns: minmax(0, 1fr);
  }
}

.card {
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(11,18,40,0.95);
  padding: 18px;
  box-shadow: 0 18px 45px rgba(0,0,0,0.45);
}

.card h2,
.card h3 {
  margin-top: 0;
}

h2.section-title {
  font-size: 22px;
  margin: 28px 0 8px;
}

.lead {
  color: rgba(232,241,255,0.80);
  max-width: 75ch;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 18px;
}

@media (max-width: 900px) {
  .two-col {
    grid-template-columns: minmax(0,1fr);
  }
}

.prose p {
  margin: 0 0 1em;
  color: rgba(232,241,255,0.86);
}

.prose ul {
  margin: 0.25em 0 1em 1.2em;
  padding: 0;
}

.prose li {
  margin: 0.2em 0;
}

.inline-ad-wrap {
  margin: 20px 0;
  text-align: center;
}

.inline-ad {
  max-width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 14px 35px rgba(0,0,0,0.45);
}

.optin-section {
  margin: 28px 0;
  padding: 18px 16px;
  border-radius: 18px;
  border: 1px solid rgba(26,165,248,0.50);
  background: radial-gradient(circle at top left, rgba(26,165,248,0.30), transparent 60%), rgba(4,9,30,0.98);
}

.optin-section h2 {
  margin-top: 0;
  margin-bottom: 6px;
}

.optin-section p {
  margin-top: 0;
  margin-bottom: 12px;
  color: rgba(232,241,255,0.82);
}

.optin-section input.text,
.optin-section input[type="email"] {
  width: 100%;
  border-radius: 10px;
  padding: 8px 10px;
  border: 1px solid rgba(255,255,255,0.20);
  margin-bottom: 10px;
}

.optin-section input.submit {
  border-radius: 10px;
  padding: 8px 14px;
  border: none;
  background: linear-gradient(135deg, #1aa5f8, #3c8bff);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.optin-section input.submit:hover {
  filter: brightness(1.05);
}

.article-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
}

.article-list li {
  margin: 6px 0;
}

.article-list a {
  color: #9fd0ff;
}

.site-footer {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 20px;
  padding: 18px 0 26px;
  font-size: 12px;
  color: rgba(200,210,240,0.8);
}