:root {
  --primary-color: #0A1F44;
  --accent-color: #00BFFF;
  --bg-color: #f9f9f9;
  --font: 'Montserrat', sans-serif;
}

body {
  margin: 0;
  font-family: var(--font);
  background-color: var(--bg-color);
  color: var(--primary-color);
}

header {
  background-color: white;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

header .logo {
  display: flex;
  align-items: center;
}

header .logo img {
  height: 50px;
  margin-right: 10px;
}

header .logo span {
  font-size: 1.5em;
  font-weight: 600;
  color: var(--primary-color);
}

nav a {
  margin: 0 15px;
  text-decoration: none;
  color: var(--primary-color);
  font-weight: 500;
}

nav a:hover {
  color: var(--accent-color);
}

.cta-button {
  background-color: var(--accent-color);
  color: white;
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 600;
}

.hero {
  background: linear-gradient(rgba(10, 31, 68, 0.7), rgba(10, 31, 68, 0.7)),
              url('../images/hajtech-logo.png') center/cover no-repeat;
  color: white;
  text-align: center;
  padding: 100px 20px;
}

.hero h1 {
  font-size: 2.5em;
  margin-bottom: 20px;
}

.section {
  padding: 60px 40px;
  max-width: 1200px;
  margin: auto;
}

.section h2 {
  text-align: center;
  margin-bottom: 40px;
  font-size: 2em;
  color: var(--primary-color);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.card {
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  transition: transform 0.2s;
}

.card:hover {
  transform: translateY(-5px);
}

footer {
  background-color: var(--primary-color);
  color: white;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}

/* Collapsible Styles */
.collapsible {
  background-color: var(--accent-color);
  color: white;
  cursor: pointer;
  padding: 14px;
  width: 100%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 1.1em;
  margin-bottom: 5px;
  border-radius: 5px;
}

.collapsible.active, .collapsible:hover {
  background-color: #0090CC;
}

.content {
  background-color: white;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.2s ease-out;
  padding: 0 15px;
  border-radius: 5px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  z-index: 999;
  padding-top: 100px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(10,31,68,0.8);
}

.modal-content {
  background-color: #fefefe;
  margin: auto;
  padding: 20px;
  border-radius: 8px;
  width: 80%;
  max-width: 500px;
  color: var(--primary-color);
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.close-button {
  color: var(--primary-color);
  float: right;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
}

.close-button:hover {
  color: var(--accent-color);
}