/* =========================================
   Base Reset & Global Behavior
========================================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: #222;
  background: #ffffff;
}

/* Fluid images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Links */
a {
  color: #005bbb;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* =========================================
   Layout Containers
========================================= */
.container {
  width: min(1200px, 90%);
  margin: auto;
}

.row {
  display: flex;
  gap: 20px;
}

.col {
  flex: 1;
}

/* =========================================
   Header & Navigation
========================================= */
header {
  background: #ccddee;
  padding: 20px 0;
  border-bottom: 1px solid #e0e0e0;
}

.brand {
  font-size: 1.8rem;
  font-weight: bold;
  color: #003366;
}

.tagline {
  font-size: 0.95rem;
  color: #555;
  margin-top: 5px;
}

nav {
  display: flex;
  flex-direction: column;   /* stack the two rows */
  align-items: center;      /* center the rows horizontally */
  gap: 8px;                 /* spacing between the two rows */
}

nav .nav-row {
  display: flex;
  gap: 25px;
  list-style: none;
}

nav .nav-row + .nav-row {
  border-top: 1px solid #000;   /* thin gray line */
  margin-top: 6px;              /* small spacing above the line */
  padding-top: 6px;             /* spacing below the line */
}

nav ul {
  display: flex;
  gap: 25px;
  list-style: none;
}

nav ul li a {
  font-weight: 500;
  padding: 5px 0;
}

nav ul li a:hover {
  color: #003366;
}

/* Mobile toggle button */
.mobile-toggle {
  display: none;
  font-size: 1.8rem;
  cursor: pointer;
  padding: 5px 10px;
}

/* =========================================
   Hero Section
========================================= */
.hero {
  padding: 60px 0;
  text-align: center;
  background: #eef4fb;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: #003366;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 30px auto;
  color: #333;
}

/* CTA Buttons */
.cta {
  display: inline-block;
  padding: 12px 22px;
  background: #005bbb;
  color: white;
  border-radius: 6px;
  font-weight: 600;
  text-align: center;
  margin: 10px 5px;
}

.cta:hover {
  background: #004999;
}

.cta.secondary {
  background: #777;
}

.cta.secondary:hover {
  background: #555;
}

/* =========================================
   Cards / Grid Section
========================================= */
.grid {
  padding: 60px 0;
}

.card {
  background: #ffffff;
  padding: 25px;
  border-radius: 10px;
  border: 1px solid #e0e0e0;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.card h2 {
  font-size: 1.6rem;
  color: #003366;
  margin-bottom: 15px;
}

.card p {
  margin-bottom: 15px;
  color: #444;
}

.card ul {
  margin-bottom: 20px;
  padding-left: 20px;
}

.card ul li {
  margin-bottom: 8px;
}

/* =========================================
   Footer
========================================= */
footer {
  background: #ccddee;
  padding: 20px 0;
  text-align: center;
  color: #555;
  border-top: 1px solid #e0e0e0;
}

/* =========================================
   Responsive Breakpoints
========================================= */

/* Tablet */
@media (max-width: 992px) {
  .row {
    gap: 15px;
  }
}

/* Phones */
@media (max-width: 768px) {

  /* Stack columns */
  .row {
    flex-direction: column;
  }

  /* Navigation becomes mobile */
  nav {
    justify-content: space-between;
  }

  nav ul {
    display: none;
    flex-direction: column;
    gap: 15px;
    background: #f0f3f7;
    padding: 15px;
    border-radius: 8px;
    margin-top: 10px;
  }

  nav ul.mobile-open {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }
}

/* Small phones */
@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

  header {
    padding: 15px 0;
  }

  .hero {
    padding: 40px 0;
  }
}