:root {
  --navy: #003366;
  --bright-red: #ff0000;
  --white: #ffffff;
  --light-gray: #f9f9f9;
  --gray-border: #ddd;
  --transition: 0.3s ease;
}

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

body {
  font-family: 'Arial', sans-serif;
  background-color: var(--white);
  color: var(--navy);
  line-height: 1.6;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.5rem;
}

/* Navbar */
nav {
  background-color: var(--white);
  border-bottom: 1px solid var(--light-gray);
  position: relative;
  z-index: 1000;
}

#mainNavbar::after {
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--bright-red);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 1rem;
  padding: 0.5rem 1rem;
  width: 100%;
  position: relative;
  z-index: 1000;
}

.logo img {
  height: 55px;
  width: auto;
  display: block;
  transition: transform 0.3s ease;
}

.logo img:hover {
  transform: scale(1.05);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--navy);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 1100;
}

/* Main Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.nav-links a {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0.5rem 0.8rem;
  font-size: 0.95rem;
  color: var(--navy);
  text-decoration: none;
  transition: all 0.25s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--bright-red);
  transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--bright-red);
  font-weight: 600;
}

/* Dropdown Menu */
.nav-item {
  position: relative;
}

.nav-item > a::after {
  margin-left: 4px;
  font-size: 0.8rem;
  color: var(--navy);
}

.nav-item.active > a {
  color: var(--bright-red);
  font-weight: 600;
}

.nav-item .dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--white);
  min-width: 180px;
  display: none;
  flex-direction: column;
  border: 1px solid var(--gray-border);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  z-index: 999;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.nav-item .dropdown a {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  color: var(--navy);
  text-decoration: none;
  transition: all 0.25s ease;
  position: relative;
}

.nav-item .dropdown a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--bright-red);
  transition: width 0.3s ease;
}

.nav-item .dropdown a:hover::after,
.nav-item .dropdown a.active::after {
  width: 100%;
}

.nav-item .dropdown a:hover,
.nav-item .dropdown a.active {
  color: var(--bright-red);
  font-weight: 600;
}

/* Desktop hover dropdown */
@media (min-width: 769px) {
  .nav-item:hover .dropdown {
    display: flex;
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile Styles */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
    margin-left: auto;
  }

  .nav-links {
    display: none;
    flex-direction: column;   /* stack vertically */
    flex-wrap: nowrap;        /* keep one column */
    align-items: flex-start;  /* align everything left */
    width: 100%;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    z-index: 999;
  }

  .nav-links.show {
    display: flex;
  }

  .nav-links > a,
  .nav-links > .nav-item > a {
    width: 100%;
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--light-gray);
  }

  .nav-item .dropdown {
    position: static;   /* inline with list */
    display: none;
    width: 100%;
    flex-direction: column;
    box-shadow: none;
    border: none;
    padding-left: 0;
    opacity: 1;         /* make visible when open */
    transform: none;
  }

  .nav-item.open .dropdown {
    display: flex;
  }

  .nav-item .dropdown a {
    padding-left: 1.5rem;  /* indent sub-items */
    border-bottom: 1px solid var(--light-gray);
  }
}

/* Main container padding */
main .container {
  padding: 2rem 1rem;
}