/**
 * MOBILE NAVIGATION OVERLAY
 * Full-screen menu for mobile devices
 * 
 * Design: Minimal, elegant slide-in overlay
 */

/* ============================================
   MOBILE OVERLAY - FULL SCREEN
   ============================================ */

.nav-mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

.nav-mobile-overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* Mobile Content Container */
.nav-mobile-content {
    width: 100%;
    max-width: 400px;
    padding: var(--space-xl);
    transform: translateY(40px);
    transition: transform var(--transition-base);
}

.nav-mobile-overlay.active .nav-mobile-content {
    transform: translateY(0);
}

/* Close Button */
.nav-mobile-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.close-line {
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--color-black);
    transition: transform var(--transition-fast);
}

.close-line:first-child {
    transform: rotate(45deg);
}

.close-line:last-child {
    transform: rotate(-45deg);
}

.nav-mobile-close:hover .close-line {
    background: var(--color-mazda-red);
}

/* Mobile Menu */
.nav-mobile-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-mobile-item {
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.nav-mobile-overlay.active .nav-mobile-item {
    opacity: 1;
    transform: translateX(0);
}

/* Staggered animation delay */
.nav-mobile-overlay.active .nav-mobile-item:nth-child(1) { transition-delay: 100ms; }
.nav-mobile-overlay.active .nav-mobile-item:nth-child(2) { transition-delay: 150ms; }
.nav-mobile-overlay.active .nav-mobile-item:nth-child(3) { transition-delay: 200ms; }
.nav-mobile-overlay.active .nav-mobile-item:nth-child(4) { transition-delay: 250ms; }
.nav-mobile-overlay.active .nav-mobile-item:nth-child(5) { transition-delay: 300ms; }
.nav-mobile-overlay.active .nav-mobile-item:nth-child(6) { transition-delay: 350ms; }

.nav-mobile-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-black);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.nav-mobile-link:hover {
    background: var(--color-gray-100);
}

.mobile-link-arrow {
    opacity: 0;
    transform: translateX(-8px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.nav-mobile-link:hover .mobile-link-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Mobile CTA */
.nav-mobile-cta {
    margin-top: var(--space-lg);
}

.nav-mobile-cta-button {
    display: block;
    width: 100%;
    padding: 1.25rem;
    background: var(--color-mazda-red);
    color: var(--color-white);
    font-family: var(--font-ui);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-mobile-cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Hide on desktop */
@media (min-width: 768px) {
    .nav-mobile-overlay {
        display: none;
    }
}