/* Navigation Menu Overlay */
.nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
    z-index: 90; /* Behind hamburger (z-index 100) but above everything else */
}

.nav-menu.active {
    opacity: 1;
    visibility: visible;
}

.nav-menu ul {
    list-style: none;
    text-align: center;
}

.nav-menu li {
    margin: var(--spacing-md) 0;
    overflow: hidden;
}

.nav-link {
    display: inline-block;
    font-family: var(--font-en);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-white);
    text-decoration: none;
    position: relative;
    transform: translateY(100%);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-menu.active .nav-link {
    transform: translateY(0);
}

/* Staggered animation delays */
.nav-menu.active li:nth-child(1) .nav-link { transition-delay: 0.1s; }
.nav-menu.active li:nth-child(2) .nav-link { transition-delay: 0.2s; }
.nav-menu.active li:nth-child(3) .nav-link { transition-delay: 0.3s; }
.nav-menu.active li:nth-child(4) .nav-link { transition-delay: 0.4s; }
.nav-menu.active li:nth-child(5) .nav-link { transition-delay: 0.5s; }

.nav-link:hover {
    color: #888;
    /* Glitch effect or simple opacity change */
    opacity: 0.7;
}

/* Hamburger Animation */
.hamburger {
    z-index: 101; /* Ensure it's above the menu overlay */
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg);
    top: 9px;
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg);
    bottom: 9px;
}