/* ====================================
   STUNNING MOBILE NAVIGATION
   ==================================== */

@media screen and (max-width: 991px) {
    
    /* Mobile Navigation Container */
    #collapsibleNavbar {
        position: fixed !important;
        top: 0;
        left: 0;
        width: 100% !important;
        height: 100vh;
        background: var(--bg-card) !important;
        z-index: 9998 !important;
        overflow-y: auto;
        transform: translateX(-100%);
        transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        padding: 80px 0 40px 0;
    }
    
    #collapsibleNavbar.show {
        transform: translateX(0);
    }
    
    /* Backdrop Overlay */
    #collapsibleNavbar::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(8px);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
        z-index: -1;
    }
    
    #collapsibleNavbar.show::before {
        opacity: 1;
        visibility: visible;
    }
    
    /* Mobile Navigation List */
    #collapsibleNavbar .navbar-nav {
        display: flex;
        flex-direction: column;
        padding: 0;
        gap: 0;
    }
    
    /* Mobile Navigation Items */
    .nav-item {
        padding: 0 !important;
        border-bottom: 1px solid var(--border-color);
        opacity: 0;
        transform: translateX(-30px);
        animation: slideInNav 0.4s forwards;
    }
    
    .nav-item:nth-child(1) { animation-delay: 0.1s; }
    .nav-item:nth-child(2) { animation-delay: 0.15s; }
    .nav-item:nth-child(3) { animation-delay: 0.2s; }
    .nav-item:nth-child(4) { animation-delay: 0.25s; }
    .nav-item:nth-child(5) { animation-delay: 0.3s; }
    
    @keyframes slideInNav {
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }
    
    /* Mobile Nav Links */
    .nav-item .nav-link {
        padding: 20px 30px !important;
        font-size: 20px !important;
        font-weight: 600 !important;
        color: var(--text-primary) !important;
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: relative;
        transition: all 0.3s ease;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        user-select: none;
    }
    
    .nav-item .nav-link:active {
        background: var(--bg-secondary);
        transform: translateX(5px);
    }
    
    .nav-item .nav-link::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 5px;
        height: 0;
        background: var(--gradient-primary);
        transition: height 0.3s ease;
        border-radius: 0 5px 5px 0;
    }
    
    .nav-item .nav-link:hover::before,
    .nav-item .nav-link:active::before {
        height: 60%;
    }
    
    .nav-item .nav-link:hover {
        background: var(--bg-secondary);
        color: var(--primary-color) !important;
        padding-left: 40px !important;
        text-decoration: none;
    }
    
    /* Dropdown Styling */
    .nav-item.dropdown .dropdown-menu {
        position: static !important;
        transform: none !important;
        border: none;
        box-shadow: none;
        background: var(--bg-secondary) !important;
        padding: 0;
        margin: 0;
        display: none;
        border-radius: 0;
    }
    
    .nav-item.dropdown .dropdown-menu.show {
        display: block;
        animation: slideDown 0.3s ease;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            max-height: 0;
        }
        to {
            opacity: 1;
            max-height: 500px;
        }
    }
    
    .dropdown-item {
        padding: 15px 30px 15px 50px !important;
        font-size: 17px !important;
        color: var(--text-secondary) !important;
        transition: all 0.3s ease;
        position: relative;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        user-select: none;
    }
    
    .dropdown-item::before {
        content: '→';
        position: absolute;
        left: 30px;
        opacity: 0;
        transition: all 0.3s ease;
        color: var(--primary-color);
    }
    
    .dropdown-item:hover,
    .dropdown-item:active {
        background: var(--bg-card) !important;
        color: var(--primary-color) !important;
        padding-left: 60px !important;
    }
    
    .dropdown-item:hover::before,
    .dropdown-item:active::before {
        opacity: 1;
    }
    
    /* Hamburger Menu Animation */
    .navbar-toggler {
        position: relative;
        width: 48px;
        height: 48px;
        border-radius: 12px !important;
        z-index: 9999;
        border: none !important;
        background: var(--gradient-accent) !important;
        box-shadow: var(--shadow-sm);
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        user-select: none;
    }
    
    .navbar-toggler:active {
        transform: scale(0.95);
        box-shadow: var(--shadow-md);
    }
    
    .navbar-toggler i {
        font-size: 24px;
        transition: all 0.3s ease;
        pointer-events: none;
    }
    
    .navbar-toggler[aria-expanded="true"] {
        background: var(--gradient-primary) !important;
    }
    
    .navbar-toggler[aria-expanded="true"] i {
        transform: rotate(90deg);
        color: white !important;
    }
    
    .navbar-toggler[aria-expanded="true"] i::before {
        content: '\f00d'; /* X icon */
    }
    
    /* Improve touch target size */
    .navbar-toggler::before {
        content: '';
        position: absolute;
        top: -10px;
        left: -10px;
        right: -10px;
        bottom: -10px;
    }
    
    /* Close Button */
    .nav-close-btn {
        position: absolute;
        top: 20px;
        right: 20px;
        width: 48px;
        height: 48px;
        border-radius: 50%;
        background: var(--primary-color);
        border: none;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 10000;
        transition: all 0.3s ease;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        user-select: none;
    }
    
    .nav-close-btn i {
        color: white;
        font-size: 24px;
        pointer-events: none;
    }
    
    .nav-close-btn:hover,
    .nav-close-btn:active {
        background: var(--primary-light);
        transform: rotate(90deg) scale(0.95);
    }
    
    /* Mobile Navigation Decorative Elements */
    .mobile-nav-decoration {
        position: absolute;
        bottom: 40px;
        left: 0;
        right: 0;
        padding: 0 30px;
        display: flex;
        flex-direction: column;
        gap: 20px;
        border-top: 1px solid var(--border-color);
        padding-top: 30px;
    }
    
    .mobile-nav-contact {
        display: flex;
        align-items: center;
        gap: 15px;
        padding: 15px;
        background: var(--bg-secondary);
        border-radius: 12px;
    }
    
    .mobile-nav-contact-icon {
        width: 48px;
        height: 48px;
        border-radius: 50%;
        background: var(--gradient-primary);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }
    
    .mobile-nav-contact-icon i {
        color: white;
        font-size: 20px;
    }
    
    .mobile-nav-contact-text {
        flex: 1;
    }
    
    .mobile-nav-contact-label {
        font-size: 12px;
        color: var(--text-light);
        margin-bottom: 2px;
    }
    
    .mobile-nav-contact-value {
        font-size: 16px;
        font-weight: 600;
        color: var(--text-primary);
    }
    
    /* Social Links in Mobile Nav */
    .mobile-nav-social {
        display: flex;
        justify-content: center;
        gap: 15px;
        padding: 20px 0;
    }
    
    .mobile-nav-social a {
        width: 44px;
        height: 44px;
        border-radius: 50%;
        background: var(--bg-secondary);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-primary);
        transition: all 0.3s ease;
    }
    
    .mobile-nav-social a:hover {
        background: var(--gradient-primary);
        color: white;
        transform: translateY(-3px);
    }
    
    /* Sticky Mobile Header */
    nav {
        position: sticky;
        top: 0;
        z-index: 9997;
        backdrop-filter: blur(10px);
        background: rgba(255, 255, 255, 0.95) !important;
    }
    
    [data-theme="dark"] nav {
        background: rgba(26, 26, 26, 0.95) !important;
    }
}

@media screen and (max-width: 767px) {
    .nav-item .nav-link {
        font-size: 18px !important;
        padding: 18px 25px !important;
    }
    
    .dropdown-item {
        padding: 12px 25px 12px 45px !important;
        font-size: 16px !important;
    }
    
    .mobile-nav-decoration {
        padding: 0 20px;
        padding-top: 20px;
        bottom: 20px;
    }
    
    .mobile-nav-contact {
        padding: 12px;
    }
    
    .mobile-nav-contact-icon {
        width: 40px;
        height: 40px;
    }
    
    .mobile-nav-contact-value {
        font-size: 14px;
    }
}

/* Prevent body scroll when menu is open */
body.nav-open {
    overflow: hidden;
}