:root {
  --primary-color: #0A246A;
  --secondary-color: #FFD700;
  --text-light: #ffffff;
  --text-dark: #0A246A;
  --button-hover-dark: #06153F;
  --button-hover-light: #FFEA80;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  padding-top: 110px; /* Adjusted dynamically by JS for mobile, default desktop height */
}

/* Header Styles */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  background-color: var(--primary-color); /* Fallback, main-nav has its own */
  display: flex;
  flex-direction: column; /* Stacks header-top and main-nav */
}

.header-top {
  background-color: var(--primary-color);
  width: 100%;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 30px;
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--secondary-color);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1px;
  order: 1; /* For mobile reordering */
}

.desktop-nav-buttons {
  display: flex;
  gap: 12px;
  order: 3; /* For mobile reordering */
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 700;
  transition: all 0.3s ease;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  border: none;
  cursor: pointer;
}

.btn-register {
  background-image: linear-gradient(to right, #FFD700 0%, #FFA500 100%);
  color: var(--text-dark);
}

.btn-register:hover {
  background-image: linear-gradient(to right, #FFA500 0%, #FFD700 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.btn-login {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  border: 2px solid var(--secondary-color);
}

.btn-login:hover {
  background-color: var(--button-hover-dark);
  border-color: var(--button-hover-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.main-nav {
  background-color: var(--secondary-color);
  width: 100%;
  display: flex; /* Desktop default: flex */
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: row; /* Desktop default: row */
  justify-content: center;
  align-items: center;
  padding: 10px 30px;
}

.nav-link {
  color: var(--text-dark);
  text-decoration: none;
  padding: 8px 15px;
  font-weight: 600;
  transition: color 0.3s ease, background-color 0.3s ease;
  white-space: nowrap;
}

.nav-link:hover {
  background-color: rgba(10, 36, 106, 0.1);
  border-radius: 5px;
}

.hamburger-menu {
  display: none; /* Hidden on desktop */
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
  order: 1; /* Mobile order */
}

.hamburger-menu .bar {
  width: 25px;
  height: 3px;
  background-color: var(--secondary-color);
  margin: 5px 0;
  transition: 0.4s;
}

.hamburger-menu.active .bar:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger-menu.active .bar:nth-child(2) {
  opacity: 0;
}

.hamburger-menu.active .bar:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

.mobile-button-area {
  display: none; /* Hidden on desktop */
}

.mobile-menu-overlay {
  display: none; /* Hidden by default */
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
  display: block;
  opacity: 1;
}

body.no-scroll {
  overflow: hidden;
}

/* Footer Styles */
.site-footer {
  background-color: var(--primary-color);
  color: var(--text-light);
  padding: 40px 20px;
  font-size: 14px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 30px;
}

.footer-column {
  flex: 1;
  min-width: 250px;
}

.footer-column h3 {
  color: var(--secondary-color);
  margin-bottom: 15px;
  font-size: 18px;
}

.footer-column p {
  margin-bottom: 10px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav a {
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-nav a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  text-align: center;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Styles */
@media (max-width: 768px) {
  body {
    padding-top: 120px; /* Header-top + mobile-button-area height */
  }

  .header-container {
    padding: 10px 15px;
    width: 100%;
    max-width: none;
  }

  .logo {
    font-size: 24px;
    flex-grow: 1;
    text-align: center;
    order: 2;
  }

  .desktop-nav-buttons {
    display: none; /* Hide desktop buttons */
  }

  .hamburger-menu {
    display: block; /* Show hamburger menu */
    order: 1;
    margin-right: auto; /* Push logo to center */
  }

  .main-nav {
    display: none; /* Hidden by default on mobile */
    flex-direction: column; /* Vertical alignment */
    position: fixed;
    top: 0;
    left: 0;
    width: 280px; /* Width of the mobile menu */
    height: 100%;
    background-color: var(--primary-color);
    transform: translateX(-100%); /* Slide out of view */
    transition: transform 0.3s ease;
    overflow-y: auto;
    z-index: 1000; /* Ensure it's above content but below overlay */
  }

  .main-nav.active {
    display: flex; /* Show the menu */
    transform: translateX(0); /* Slide into view */
  }

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 20px 20px;
    width: 100%;
    max-width: none;
  }

  .nav-link {
    color: var(--text-light);
    width: 100%;
    padding: 12px 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  .nav-link:hover {
    background-color: var(--button-hover-dark);
  }

  .mobile-button-area {
    display: flex; /* Show mobile buttons */
    justify-content: center;
    gap: 10px;
    padding: 10px 15px;
    background-color: var(--primary-color);
    width: 100%;
  }

  .footer-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer-column {
    min-width: unset;
    width: 100%;
  }

  .footer-nav {
    align-items: center;
  }
}