/* ------------------------------
   RESET
--------------------------------*/
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", Arial, sans-serif;
  background: #f7f9fc;
  color: #0A1A2F;
  line-height: 1.6;
}

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

ul {
  list-style: none;
}

/* ------------------------------
   CONTAINER
--------------------------------*/
.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

/* ------------------------------
   HEADER
--------------------------------*/
.site-header {
  background: #ffffff;
  border-bottom: 1px solid #e5e8ec;
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  flex-direction: column;
  font-weight: 700;
}

.logo-top {
  font-size: 12px;
  letter-spacing: 4px;
  color: #7b8794;
}

.logo-main {
  font-size: 32px;
  letter-spacing: 2px;
  color: #0A1A2F;
}

.main-nav ul {
  display: flex;
  gap: 25px;
  align-items: center;
}

.main-nav a {
  font-weight: 500;
  color: #0A1A2F;
  transition: 0.2s;
}

.main-nav a:hover,
.main-nav .active {
  color: #1a73e8;
}

.btn-nav {
  padding: 8px 16px;
  background: #1a73e8;
  color: white !important;
  border-radius: 6px;
}

/* ------------------------------
   HERO
--------------------------------*/
.hero {
  padding: 80px 0;
  background: linear-gradient(135deg, #0A1A2F, #12345a);
  color: white;
}

.hero-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
}

.hero-text h1 {
  font-size: 42px;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-text p {
  font-size: 18px;
  margin-bottom: 20px;
}

.hero-actions {
  display: flex;
  gap: 20px;
  margin: 20px 0;
}

.btn-primary {
  background: #1a73e8;
  padding: 12px 22px;
  border-radius: 6px;
  color: white;
  font-weight: 600;
}

.btn-secondary {
  background: white;
  color: #0A1A2F;
  padding: 12px 22px;
  border-radius: 6px;
  font-weight: 600;
}

.hero-card {
  background: white;
  color: #0A1A2F;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  width: 280px;
}

/* ------------------------------
   SECTIONS
--------------------------------*/
.section {
  padding: 70px 0;
}

.section.light {
  background: #eef2f7;
}

.section h2 {
  font-size: 32px;
  margin-bottom: 20px;
}

.section-intro {
  max-width: 700px;
  margin-bottom: 40px;
  color: #4a5568;
}

/* ------------------------------
   GRIDS
--------------------------------*/
.grid-3,
.grid-4 {
  display: grid;
  gap: 25px;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ------------------------------
   CARDS
--------------------------------*/
.card {
  background: white;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.tag-card {
  background: white;
  padding: 18px;
  border-radius: 8px;
  text-align: center;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.section-actions {
  margin-top: 40px;
  text-align: center;
}

/* ------------------------------
   CTA
--------------------------------*/
.cta {
  background: #1a73e8;
  color: white;
}

.cta-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ------------------------------
   FOOTER
--------------------------------*/
.site-footer {
  background: #0A1A2F;
  color: white;
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.footer-links a {
  display: block;
  margin-bottom: 8px;
  color: #cbd5e0;
}

/* ------------------------------
   RESPONSIVE
--------------------------------*/
@media (max-width: 900px) {
  .hero-inner,
  .cta-inner,
  .header-inner {
    flex-direction: column;
    text-align: center;
  }

  .main-nav ul {
    flex-wrap: wrap;
    gap: 15px;
  }
}

@media (max-width: 600px) {
  .hero-text h1 {
    font-size: 32px;
  }
}