* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f7fb;
  color: #1f2937;
}

a {
  color: #2563eb;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: white;
  padding: 18px 0;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.logo {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.logo span {
  color: #60a5fa;
}

nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

nav a {
  color: rgba(255,255,255,0.92);
  font-size: 15px;
}

.hero {
  padding: 70px 0 50px;
  background: linear-gradient(180deg, #eaf1fb 0%, #f4f7fb 100%);
}

.hero h1 {
  margin: 0 0 16px;
  font-size: 42px;
  line-height: 1.15;
  color: #0f172a;
}

.hero p {
  max-width: 760px;
  font-size: 18px;
  line-height: 1.7;
  color: #475569;
  margin: 0 0 24px;
}

.button-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 600;
}

.button-primary {
  background: #2563eb;
  color: white;
}

.button-primary:hover {
  text-decoration: none;
  background: #1d4ed8;
}

.button-secondary {
  background: white;
  color: #0f172a;
  border: 1px solid #cbd5e1;
}

.button-secondary:hover {
  text-decoration: none;
  background: #f8fafc;
}

main {
  padding: 36px 0 60px;
}

.section-title {
  margin: 0 0 20px;
  font-size: 30px;
  color: #0f172a;
}

.lead {
  font-size: 17px;
  line-height: 1.8;
  color: #475569;
  margin-bottom: 28px;
}

.grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: white;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 8px 30px rgba(15,23,42,0.07);
  border: 1px solid #e5e7eb;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 21px;
  color: #0f172a;
}

.card p {
  color: #475569;
  line-height: 1.7;
  margin-bottom: 14px;
}

.article-list {
  display: grid;
  gap: 18px;
}

.article {
  background: white;
  border-radius: 16px;
  padding: 24px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 8px 24px rgba(15,23,42,0.05);
}

.article h2 {
  margin-top: 0;
  color: #0f172a;
}

.article p {
  line-height: 1.8;
  color: #475569;
}

.meta {
  font-size: 14px;
  color: #64748b;
  margin-bottom: 10px;
}

.content-box {
  background: white;
  border-radius: 16px;
  padding: 28px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 8px 24px rgba(15,23,42,0.05);
}

.content-box h1,
.content-box h2,
.content-box h3 {
  color: #0f172a;
}

.content-box p,
.content-box li {
  color: #475569;
  line-height: 1.8;
}

.content-box ul {
  padding-left: 22px;
}

.footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 24px 0;
  margin-top: 40px;
}

.footer a {
  color: #cbd5e1;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
}

.badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.badge {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  background: #dbeafe;
  color: #1d4ed8;
  font-size: 14px;
  font-weight: 600;
}

@media (max-width: 700px) {
  .hero h1 {
    font-size: 32px;
  }

  .section-title {
    font-size: 26px;
  }
}