:root {
    --primary-color: #6a0dad; /* Purple */
    --primary-dark: #4b0082;
    --secondary-color: #d4af37; /* Gold */
    --secondary-dark: #b8860b;
    --accent-color: #ffd700;
    --dark-color: #121212; /* Dark black */
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --light-gray: #e9ecef;
    --white: #ffffff;
    --black: #000000;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* Header/Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    padding: 0px 0;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0; /* Adjusted padding for logo height */
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: auto; /* Adjust based on your logo's aspect ratio */
    width: auto;
    max-width: 300px; /* Prevents logo from becoming too wide */
    object-fit: contain; /* Ensures logo scales without distortion */
    transition: var(--transition);
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-item {
    margin-left: 30px;
}

.nav-link {
    font-weight: 600;
    color: var(--dark-color); /* Default text color: #121212 */
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color); /* Purple: #6a0dad */
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link:active::after {
    width: 100%; /* Underline on hover (desktop) and tap (mobile) */
}

.nav-link.active {
    color: var(--dark-color); /* Purple text for active link */

}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--dark-color);
    transition: var(--transition);
}

.alert {
    padding: 15px;
    margin: 20px 0;
    border-radius: 5px;
}
.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hamburger {
        display: block;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background-color: var(--white);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        padding: 30px 0;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 15px 0;
    }
    
    .logo-img {
        height: 60px; /* Slightly smaller logo on tablets */
        max-width: 180px;
    }
}

@media (max-width: 576px) {
    .logo-img {
        height: 60px; /* Smaller logo on mobile */
        max-width: 180px;
    }
    
    .navbar {
        padding: 8px 0; /* Tighter padding for mobile */
    }
}