/* Mobile Menu Styles */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 999;
    display: flex;
    flex-direction: column;
    padding: 6rem 2rem 2rem;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

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

.mobile-menu-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.5rem;
}

.mobile-menu-nav {
    list-style: none;
}

.mobile-menu-nav li {
    margin-bottom: 0.5rem;
}

.mobile-menu-nav a {
    display: block;
    padding: 1rem 0;
    color: #fff;
    font-size: 1.5rem;
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu-nav a:hover {
    color: var(--pm-secondary);
}

/* Body lock when menu is open */
body.menu-open {
    overflow: hidden;
}

/* Mobile Menu Toggle Animation */
.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Quick Actions Bar (Mobile) */
.quick-actions {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff;
    display: none;
    grid-template-columns: repeat(4, 1fr);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    z-index: 100;
    padding: 0.5rem 0;
    padding-bottom: calc(0.5rem + env(safe-area-inset-bottom));
}

@media (max-width: 768px) {
    .quick-actions {
        display: grid;
    }

    .site-footer {
        padding-bottom: 80px;
    }
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    color: var(--pm-gray-600);
    font-size: 0.625rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.quick-action-btn svg {
    width: 22px;
    height: 22px;
    margin-bottom: 0.25rem;
}

.quick-action-btn.active,
.quick-action-btn:hover {
    color: var(--pm-secondary);
}

/* Preloader */
#preloader {
    position: fixed;
    inset: 0;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

#preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.preloader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--pm-gray-200);
    border-top-color: var(--pm-secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--pm-black);
    color: #fff;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--pm-secondary);
    transform: translateY(-3px);
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 6rem;
        right: 1rem;
        width: 44px;
        height: 44px;
    }
}