  /* Header Styles */
    :root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --primary-light: #eef2ff;
    --secondary: #2ec4b6;
    --dark: #0d1b2a;
    --gray-dark: #4b5563;
    --gray: #6b7280;
    --gray-light: #e5e7eb;
    --light: #f9fafb;
    --danger: #ef476f;
    --success: #06d6a0;
    --warning: #ffd166;
    --white: #ffffff;
    --border-radius: 10px;
    --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
}


a {
    text-decoration: none;
    transition: var(--transition);
}
.header {
    padding: 15px 0;
    background-color: #ffffff;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: #4361ee;
}

.nav-link {
    font-weight: 500;
    color: #0d1b2a;
    padding: 0.5rem 1rem;
    position: relative;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: #4361ee;
}

.nav-link.active {
    color: #4361ee;
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 3px;
    background-color: #4361ee;
    border-radius: 3px;
}

.nav-link:hover::after {
    transform: scaleX(0.5);
}

.nav-link.active::after {
    transform: scaleX(1);
}

/* Remove list style */
ul.navbar-nav li {
    list-style: none;
}

.navbar-toggler {
    border: none;
    padding: 0;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    width: 24px;
    height: 24px;
    background-image: none;
    position: relative;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: #0d1b2a;
    transition: all 0.3s ease;
}

.navbar-toggler-icon::before {
    top: 8px;
}

.navbar-toggler-icon::after {
    bottom: 8px;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
    transform: rotate(45deg);
    top: 11px;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
    transform: rotate(-45deg);
    bottom: 11px;
}

.btn-primary {
    background-color: #4361ee;
    border-color: #4361ee;
    border-radius: 50px;
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #3a56d4;
    border-color: #3a56d4;
    transform: translateY(-2px);
}

/* Responsive Styles */
@media (max-width: 991.98px) {
    .nav-link::after {
        left: 0.5rem;
        right: 0.5rem;
    }
}

@media (max-width: 767.98px) {
    .header {
        padding: 10px 0;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
}