/* 
 * Shared mobile navigation component.
 * Ensures consistent menu behavior across all pages.
 */

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #111827;
    /* Force explicit dark color for visibility on white header */
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    transition: all 0.2s ease;
}

.mobile-menu-btn:hover {
    color: var(--primary);
    transform: scale(1.05);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    /* Use scrim token for predictable contrast */
    background: rgba(var(--scrim-rgb), 0.92);
    backdrop-filter: blur(18px) saturate(120%);
    -webkit-backdrop-filter: blur(18px) saturate(120%);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
        visibility 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu-overlay.open,
.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Mobile Menu Content */
.mobile-menu-content {
    position: relative;
    width: 100%;
    max-width: none;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: calc(24px + env(safe-area-inset-top)) 24px calc(32px + env(safe-area-inset-bottom));
    gap: 28px;
    background: transparent;
    transform: translateY(12px) scale(0.98);
    opacity: 0;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu-overlay.open .mobile-menu-content,
.mobile-menu-overlay.active .mobile-menu-content {
    transform: translateY(0) scale(1);
    opacity: 1;
}

/* Mobile Menu Close Button */
.mobile-menu-close {
    position: absolute;
    top: calc(16px + env(safe-area-inset-top));
    right: 16px;
    background: rgba(var(--white-rgb), 0.08);
    border: 1px solid rgba(var(--white-rgb), 0.16);
    border-radius: 12px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(var(--white-rgb), 0.95);
    font-size: 18px;
    cursor: pointer;
    transition: all 0.25s ease;
    backdrop-filter: blur(8px);
}

.mobile-menu-close:hover {
    background: rgba(var(--white-rgb), 0.14);
    border-color: rgba(var(--white-rgb), 0.28);
    transform: translateY(-1px);
    color: var(--text-inverse);
}

/* Mobile Navigation */
.mobile-nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-top: 0;
    width: 100%;
}

.mobile-nav-link {
    position: relative;
    color: rgba(var(--white-rgb), 0.96);
    text-decoration: none;
    font-size: clamp(1.375rem, 4.5vw, 1.75rem);
    font-weight: 700;
    padding: 10px 4px;
    border-radius: 8px;
    transition: color 0.2s ease, transform 0.2s ease;
    letter-spacing: -0.02em;
}

.mobile-nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.25s ease;
}

.mobile-nav-link:hover {
    color: var(--text-inverse);
    transform: translateY(-1px);
}

.mobile-nav-link:hover::after {
    width: 100%;
}

.mobile-nav-link.cta {
    margin-top: 18px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--text-inverse);
    font-weight: 800;
    padding: 14px 20px;
    font-size: 1.125rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(var(--primary-rgb), 0.35);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.mobile-nav-link.cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 40px rgba(var(--primary-rgb), 0.45);
}

.mobile-nav-link i {
    font-size: 16px;
    opacity: 0.8;
}

/* Responsive Behavior */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav {
        display: none;
    }

    .btn-cta {
        display: none;
    }
}

@media (min-width: 769px) {
    .mobile-menu-overlay {
        display: none;
    }

    .mobile-menu-btn {
        display: none;
    }
}

/* Improved Touch Targets */
@media (max-width: 768px) {
    .mobile-nav-link {
        min-height: 56px;
        font-size: 18px;
    }

    .mobile-menu-close {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
}

/* Animation States */
.mobile-nav-link {
    opacity: 0;
    transform: translateY(8px);
    animation: menuFadeUp 0.35s ease-out forwards;
}

.mobile-nav-link:nth-child(1) {
    animation-delay: 0.06s;
}

.mobile-nav-link:nth-child(2) {
    animation-delay: 0.12s;
}

.mobile-nav-link:nth-child(3) {
    animation-delay: 0.18s;
}

.mobile-nav-link:nth-child(4) {
    animation-delay: 0.24s;
}

@keyframes menuFadeUp {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Focus States for Accessibility */
.mobile-menu-btn:focus,
.mobile-menu-close:focus,
.mobile-nav-link:focus {
    outline: 2px solid var(--focus-outline);
    outline-offset: 2px;
}