/**
 * Mobile Menu Drill-Down Styles
 * Complete mobile menu functionality with smooth animations
 */

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
    display: flex;
    opacity: 1;
}

.mobile-menu-inner {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 100%;
    background-color: white;
    margin-left: auto;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.2);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow: hidden;
}

.mobile-menu-overlay.active .mobile-menu-inner {
    transform: translateX(0);
}

/* Close button */
.mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 30px;
    cursor: pointer;
    z-index: 10;
    color: var(--text-dark);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: var(--bg-light);
    transition: all var(--transition-speed);
}

.mobile-menu-close:hover {
    background-color: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

/* Mobile Menu Container */
.mobile-menu-container {
    width: 100%;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 20px 0;
    -webkit-overflow-scrolling: touch;
}

/* Mobile Menu List */
.mobile-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
}

.mobile-menu .menu-item {
    margin-bottom: 2px;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu .menu-item:last-child {
    border-bottom: none;
}

/* Mobile Menu Links */
.mobile-menu .menu-item a {
    display: block;
    padding: 18px 25px;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all var(--transition-speed);
    position: relative;
    background-color: white;
}

.mobile-menu .menu-item a:hover,
.mobile-menu .menu-item a:focus {
    background-color: rgba(220, 77, 40, 0.1);
    color: var(--primary-color);
}

.mobile-menu .current-menu-item > a {
    background-color: var(--primary-color);
    color: white;
}

/* Mobile Menu Icons */
.mobile-menu .menu-item .menu-icon {
    margin-right: 12px;
    width: 20px;
    height: 20px;
    display: inline-block;
    vertical-align: middle;
}

/* Mobile Submenu Toggle */
.mobile-menu .mobile-submenu-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-color);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: white;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu .mobile-submenu-toggle:hover {
    background-color: var(--text-dark);
    transform: translateY(-50%) scale(1.1);
}

/* Mobile Submenus */
.mobile-submenu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: white;
    z-index: 10001;
    display: none;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease;
    overflow-y: auto;
    padding: 0;
}

.mobile-submenu.showing {
    display: block;
    opacity: 1;
    transform: translateX(0);
}

.mobile-submenu.animate-in {
    display: block;
    opacity: 1;
    transform: translateX(0);
    animation: slideInRight 0.3s ease;
}

.mobile-submenu.animate-out {
    opacity: 0;
    transform: translateX(-100%);
    animation: slideOutLeft 0.3s ease;
}

/* Back Button */
.mobile-back-button {
    display: flex;
    align-items: center;
    padding: 15px 25px;
    background-color: var(--bg-light);
    border-bottom: 2px solid var(--primary-color);
    margin-bottom: 10px;
    cursor: pointer;
    transition: all var(--transition-speed);
    color: var(--text-dark);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    width: 100%;
    justify-content: flex-start;
}

.mobile-back-button:hover,
.mobile-back-button:focus {
    background-color: var(--primary-color);
    color: white;
}

.mobile-back-button svg {
    margin-right: 12px;
    flex-shrink: 0;
}

.mobile-back-button span {
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Submenu Header */
.mobile-submenu .submenu-header {
    position: sticky;
    top: 0;
    background-color: var(--bg-light);
    z-index: 10;
    border-bottom: 1px solid var(--border-color);
}

/* Nested Submenu Levels */
.mobile-submenu.level-1 {
    z-index: 10002;
}

.mobile-submenu.level-2 {
    z-index: 10003;
}

.mobile-submenu.level-3 {
    z-index: 10004;
}

/* Nested Menu Items */
.mobile-submenu .menu-item {
    background-color: white;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.mobile-submenu .menu-item a {
    padding-left: 45px; /* More indentation for nested items */
}

.mobile-submenu .menu-item a::before {
    content: '→';
    position: absolute;
    left: 25px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    font-size: 14px;
}

/* Animations */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutLeft {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(-100%);
        opacity: 0;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        max-height: 0;
        opacity: 0;
    }
    to {
        max-height: 500px;
        opacity: 1;
    }
}

/* Menu Item Descriptions */
.mobile-menu .menu-description {
    display: block;
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
    font-weight: normal;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Loading State */
.mobile-menu.loading {
    opacity: 0.5;
    pointer-events: none;
}

.mobile-menu.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 30px;
    height: 30px;
    border: 3px solid var(--primary-color);
    border-top: 3px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Touch Feedback */
@media (hover: none) and (pointer: coarse) {
    .mobile-menu .menu-item a:active {
        background-color: var(--primary-color);
        color: white;
    }

    .mobile-submenu-toggle:active {
        background-color: var(--text-dark);
        transform: translateY(-50%) scale(0.95);
    }

    .mobile-back-button:active {
        background-color: var(--primary-color);
        color: white;
    }
}

/* Responsive Adjustments */
@media (max-width: 480px) {
    .mobile-menu-inner {
        max-width: 100%;
    }

    .mobile-menu-container {
        padding: 15px 0;
    }

    .mobile-menu .menu-item a {
        padding: 16px 20px;
        font-size: 15px;
    }

    .mobile-submenu-toggle {
        width: 30px;
        height: 30px;
        font-size: 16px;
        right: 12px;
    }

    .mobile-back-button {
        padding: 14px 20px;
        font-size: 15px;
    }

    .mobile-submenu .menu-item a {
        padding-left: 40px;
    }

    .mobile-submenu .menu-item a::before {
        left: 20px;
        font-size: 12px;
    }
}

/* Large Mobile Devices */
@media (min-width: 768px) {
    .mobile-menu-inner {
        max-width: 450px;
    }

    .mobile-menu-close {
        top: 25px;
        right: 25px;
        width: 45px;
        height: 45px;
        font-size: 35px;
    }

    .mobile-menu-container {
        padding: 25px 0;
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus States */
.mobile-menu .menu-item a:focus,
.mobile-submenu-toggle:focus,
.mobile-back-button:focus,
.mobile-menu-close:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .mobile-menu-overlay {
        background-color: rgba(0, 0, 0, 0.95);
    }

    .mobile-menu-inner {
        background-color: black;
        color: white;
    }

    .mobile-menu .menu-item a {
        color: white;
        border-bottom-color: white;
    }

    .mobile-menu .menu-item a:hover,
    .mobile-menu .menu-item a:focus {
        background-color: white;
        color: black;
    }

    .mobile-submenu {
        background-color: black;
    }

    .mobile-back-button {
        background-color: black;
        color: white;
        border-color: white;
    }

    .mobile-submenu-toggle {
        background-color: white;
        color: black;
        border: 2px solid white;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .mobile-menu-overlay,
    .mobile-menu-inner,
    .mobile-submenu {
        transition: none;
    }

    .mobile-submenu.animate-in,
    .mobile-submenu.animate-out {
        animation: none;
        transform: none;
    }

    @keyframes slideInRight,
    @keyframes slideOutLeft {
        animation: none;
    }
}