/* CSS-only Mobile Menu */

/* Hide the checkbox */
.mobile-menu-toggle {
    display: none;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    position: relative;
    margin-left: 1rem;
}

/* Hamburger Lines */
.hamburger-line {
    width: 25px;
    height: 3px;
    background-color: hsl(var(--foreground));
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

/* Hamburger Animation */
.mobile-menu-toggle:checked + .mobile-menu-btn .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle:checked + .mobile-menu-btn .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle:checked + .mobile-menu-btn .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Styles */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .header-nav {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        z-index: 1000;
        
        /* Hidden by default */
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    /* Show menu when checkbox is checked */
    .mobile-menu-toggle:checked ~ .header-nav {
        transform: translateX(0);
    }
    
    .header-nav .nav-link {
        font-size: 1.5rem;
        font-weight: 600;
        padding: 1rem 2rem;
        border-radius: 0.5rem;
        text-align: center;
        min-width: 200px;
        border: 1px solid transparent;
    }
    
    .header-nav .nav-link:hover,
    .header-nav .nav-link.active {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.2);
        transform: scale(1.05);
        transition: all 0.3s ease;
    }
    
    /* Adjust header content for mobile */
    .header-content {
        justify-content: space-between;
        position: relative;
    }
    
    .header-left {
        z-index: 1001;
        display: flex;
        align-items: center;
        width: 100%;
        justify-content: space-between;
    }
}

/* Smooth transitions for all states */
@media (max-width: 768px) {
    .header-nav .nav-link {
        opacity: 0;
        transform: translateY(20px);
        animation: none;
    }
    
    .mobile-menu-toggle:checked ~ .header-nav .nav-link {
        opacity: 1;
        transform: translateY(0);
        animation: slideInMenu 0.5s ease forwards;
    }
    
    .mobile-menu-toggle:checked ~ .header-nav .nav-link:nth-child(1) { animation-delay: 0.1s; }
    .mobile-menu-toggle:checked ~ .header-nav .nav-link:nth-child(2) { animation-delay: 0.2s; }
    .mobile-menu-toggle:checked ~ .header-nav .nav-link:nth-child(3) { animation-delay: 0.3s; }
    .mobile-menu-toggle:checked ~ .header-nav .nav-link:nth-child(4) { animation-delay: 0.4s; }
    .mobile-menu-toggle:checked ~ .header-nav .nav-link:nth-child(5) { animation-delay: 0.5s; }
}

@keyframes slideInMenu {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Prevent body scroll when menu is open */
.mobile-menu-toggle:checked ~ * {
    overflow: hidden;
}

/* Close menu when clicking on a link (CSS limitation workaround) */
@media (max-width: 768px) {
    .nav-link:target ~ .mobile-menu-toggle {
        display: none;
    }
}