/*  Reset default browser styles for consistency */

* {
    margin: 0;              /* Remove default margin */
    padding: 0;             /* Remove default padding */
    box-sizing: border-box; /* Include padding/border in element width */
}


/* Header section */
header
{
    position: sticky;
    /* Makes the navbar stick to the top while scrolling */

    top: 0;
    /* Positions the header at the top of the viewport */

    z-index: 1000;
    /* Ensures the navbar stays above other elements */
}

/* NAVBAR BASE STYLES*/
.navbar {
    display: flex;              /* Flex layout for horizontal alignment */
    justify-content: space-between; /* Space between logo and menu items */
    align-items: center;        /* Vertically center items */
    background-color: #0C1446; /* Dark blue background */
    padding: 20px 40px;       /* Vertical and horizontal padding */
}

/* LOGO STYLING */
.navbar .logo {
    color: white;               /* Logo text color */
    font-size: 20px;          /* Slightly larger for emphasis */
    text-decoration: none;      /* Remove underline */
    font-weight: bold;           /* Emphasize brand */
}

/* NAV MENU STYLING */
.nav-menu {
    list-style: none;          /* Remove bullets */
    display: flex;             /* Align menu items horizontally */
    gap: 20px;               /* Space between menu items */
}

/* Menu links styling */
.nav-menu a {
    color: white;              /* White text for contrast */
    text-decoration: none;     /* Remove underline */
    font-size: 16px;           /* Normal readable font */
    padding: 8px 12px;         /* Vertical and horizontal padding for click area */
    transition: background-color 0.3s ease, color 0.3s ease; /* Smooth transition for hover effects */
}

.nav-menu a:hover
{
    background-color: #2b5c92; /* Slightly lighter on hover */
    border-radius: 4px;
   
}

/* DROPDOWN MENU STYLING */
.dropdown {
    position: relative;        /* Position relative to parent for dropdown positioning */
}

/* Dropdown menu hidden by default */
.dropdown-menu {
    position: absolute;        /* Absolute positioning relative to parent li */
    top: 100%;                 /* Place below parent menu item */
    left: 0;                   /* Align to left edge */
    background-color: #0C1446; /* Same navbar background */
    list-style: none;           /* Remove bullets */
    display: none;             /* Hide by default */
    min-width: 150px;          /* Minimum width */
    box-shadow: 0 4px 8px rgba(0,0,0,0.1); /* Subtle shadow for depth */
    z-index: 999;              /* Above other content */
}

/* Dropdown links */
.dropdown-menu li a {
    display: block;             /* Make full clickable area */
    padding: 0.5rem 1rem;       /* Space inside links */
}

.dropdown-menu li a {
    transition: background-color 0.3s ease;
}

/* Show dropdown on hover (desktop) */
@media (hover: hover) {
    .dropdown:hover .dropdown-menu {
        display: block;         /* Show submenu */
    }
}


   /* MOBILE MENU TOGGLE */
.menu-toggle {
    display: none;              /* Hidden by default on desktop */
    background: none;           /* Remove default button styling */
    border: none;               /* No border */
    font-size: 2rem;            /* Make icon large enough to tap */
    color: white;               /* Icon color */
    cursor: pointer;            /* Indicate clickable */
}

/* RESPONSIVE DESIGN */
@media (max-width: 767px) {
    .menu-toggle {
        display: block;         /* Show hamburger button on mobile */
    }

    .nav-menu {
        display: none;           /* Hide menu initially */
        flex-direction: column;  /* Stack links vertically */
        width: 100%;             /* Full width menu */
        background-color: #0C1446; /* Same navbar background */
    }

    .nav-menu.active {
        display: flex;           /* Show menu when toggle clicked */
    }

    .nav-menu li {
        text-align: center;      /* Center links vertically */
        width: 100%;             /* Full width links */
    }

    /* Dropdown menu nested in mobile */
    .dropdown-menu {
        position: static;        /* Remove absolute positioning for mobile */
        box-shadow: none;        /* Remove shadow */
        display: none;           /* Hide by default */
    }

    /* Show dropdown menu when parent is active */
    .dropdown.active .dropdown-menu {
        display: flex;           /* Show submenu */
        flex-direction: column;  /* Stack submenu items vertically */
    }
}