:root {
  --main: #0070a8;
  --primary: #002244;
  --secondary: #e63946;
  --secondry-dark: #c02732;
  --light: #f4f4f4;
  --dark: #111;
  --gray: #464646;
  --light-gray: #5e5e5e;
}

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

body {
  font-family: Helvetica, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background: #fff;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

.main-header {
  background: var(--light);
  color: var(--primary);
  padding: 0.5rem 0; /* Reduced header height */
}

.main-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px; /* Ensures a consistent, not-too-tall header */
}

.main-header {
  position: sticky;
  top: 0%;
}

.main-header::after{
  content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--main);
}

.logo {
  display: flex;
  align-items: center;           /* Ensures logo text is vertically centered */
}
.logo a {
  color: var(--main);            /* Brand color */
  text-decoration: none;        
  font-size: 1.8rem;             /* Match logo size */
  font-weight: bold;            
  display: flex;                 /* Align with flex for vertical centering */
  align-items: center;
  transition: color 0.2s;        /* Smooth color transition on hover */
}

.logo a:hover, .logo a:focus {
  text-decoration: none; 
}

.logo img{
  width: 7.5rem;
  height: auto;
  margin-right: 0.5rem;
  vertical-align: middle;
}

/* Hamburger styles */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 2.2rem;
  height: 2.2rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.3rem;
  z-index: 20;
}
.hamburger span {
  display: block;
  width: 1.8rem;
  height: 3px;
  margin: 0.22rem 0;
  background: var(--main);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(.4,2,.6,1);
}

/* Responsive header */
@media (max-width: 900px) {
  .main-header .container {
    flex-direction: row;
    align-items: center;
  }
  .logo {
    font-size: 1.3rem;
  }
  .logo a {
    font-size: 1.3rem;
  }
  .logo img {
    height: 1.2rem;
    width: 1.2rem;
  }
  .nav-links {
    gap: 1rem;
  }
}

@media (max-width: 700px) {
  .main-header .container {
    flex-direction: row;
    align-items: center;
  }
  .logo {
    font-size: 1.1rem;
  }
  .logo a {
    font-size: 1.1rem;
  }
  .logo img {
    height: 1rem;
    width: 1rem;
  }
  nav {
    position: relative;
    display: flex;
    align-items: center;
  }
  .nav-links {
    position: absolute;
    top: 110%;
    right: 0;
    background: var(--light);
    flex-direction: column;
    align-items: flex-end;
    width: 180px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    border-radius: 0 0 8px 8px;
    padding: 1rem 0.5rem;
    display: none;
    z-index: 10;
    transition: all 0.3s;
  }
  .nav-links.open {
    display: flex;
    animation: slideDown 0.3s cubic-bezier(.4,2,.6,1);
  }
  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .hamburger {
    display: flex;
    margin-left: 1rem;
  }
}

.nav-links {
  list-style: none;
  align-items: center;
  justify-content: flex-end;
  gap: 1.5rem;
  /* Remove display:flex here so it's not always visible */
}

@media (min-width: 701px) {
  .nav-links {
    display: flex;
  }
}

.nav-links a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}
.nav-links a:hover {
  color: var(--main)
}

.hero {
  background: linear-gradient(135deg, #002244, #004f77);
  color: #fff;
  text-align: center;
  padding: 4rem 2rem;
}

.about p, h3{
  text-align: center;
  padding-top: 2rem;
}

.about, .subsidiaries, .contact {
  padding: 3rem 0;
}

.about p, .contact p {
  font-size: 1.1rem;
  max-width: 700px;
  text-decoration: none;
  margin: 0 auto; 
}

.about p, .card p, h3 {
  color: var(--gray);
}

/* Justify About section paragraph */
.about p {
  text-align: justify;
  max-width: none;
  margin: 0;
}

.subsidiary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

/* Mobile responsive fixes */
@media (max-width: 768px) {
  .container {
    width: 95%;
    padding: 0 1rem;
  }
  
  .hero {
    padding: 3rem 1rem;
  }
  
  .about, .subsidiaries, .contact {
    padding: 2rem 0;
  }
  
  .subsidiary-cards {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
  }
  
  .card {
    padding: 1.5rem;
  }
  
  .about p, .contact p {
    font-size: 1rem;
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .container {
    width: 100%;
    padding: 0 0.5rem;
  }
  
  .hero {
    padding: 2rem 0.5rem;
  }
  
  .card {
    padding: 1rem;
  }
  
  .about p, .contact p {
    padding: 0 0.5rem;
  }
}

.card {
  background: var(--light);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.2s;
  text-align: center; 
}

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

.card h4 {
  margin-bottom: 0.5rem;
  color: var(--gray);
}

.card p {
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--light-gray);
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
}

.btn:hover {
  background: var(--main);
}

.footer {
  background: linear-gradient(135deg, #002244, #004f77);
  color: #fff;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  position: relative;
}

.footer p {
  font-size: 1rem;
  font-weight: 300;
  margin: 0;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  margin-left: auto;
}

.footer p{
  font-size: 1rem;
  font-weight: 400;
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: #fff;
  text-decoration: none;
  font-size: 0.8rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--main);
}

/* Mobile responsive for footer */
@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
    position: static;
    justify-content: center;
  }
  
  .footer p {
    position: static;
    transform: none;
    margin-bottom: 0.5rem;
    text-align: center;
  }
  
  .footer-links {
    justify-content: center;
    margin-left: 0;
  }
}

.contact {
  padding: 3rem 0;
  text-align: center; /* Centralize contact content */
}

.contact a{
  text-decoration: none;
  color: var(--gray);
}

.contact a:hover{
  color: var(--main);
}

/* Sitemap styles */
.sitemap-content {
  padding: 3rem 0;
  max-width: 800px;
  margin: 0 auto;
}

.sitemap-section {
  margin-bottom: 2.5rem;
  text-align: center;
}

.sitemap-section h3 {
  color: var(--primary);
  margin-bottom: 1.5rem;
  font-size: 1.4rem;
  text-align: center;
}

.sitemap-links {
  list-style: none;
  padding: 0;
  max-width: 600px;
  margin: 0 auto;
}

.sitemap-links li {
  margin-bottom: 1rem;
  padding: 0.8rem 1rem;
  border: 1px solid #eee;
  border-radius: 8px;
  background: #fafafa;
  transition: all 0.2s ease;
}

.sitemap-links li:hover {
  background: #f0f0f0;
  border-color: var(--main);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.sitemap-links li:last-child {
  border-bottom: 1px solid #eee;
}

.sitemap-links a {
  color: var(--main);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
  display: block;
}

.sitemap-links a:hover {
  color: var(--primary);
  text-decoration: none;
}

/* Mobile responsive for sitemap */
@media (max-width: 768px) {
  .sitemap-content {
    padding: 2rem 0;
  }
  
  .sitemap-section {
    margin-bottom: 1.5rem;
  }
  
  .sitemap-links li {
    margin-bottom: 0.6rem;
    padding: 0.4rem 0;
  }
}