/* Navigation CSS - LinkedIn Service Website - Professional Dark Style with Apple Glass Morphism */
/* Magic-UI optimized for premium Apple Glass Morphism aesthetics */
/* Enhanced with sophisticated multi-layer shadows, refined blur, and premium interactions */
/* Logo colors: #0077b5 (Blue), #ffd700 (Gold) - Professional Dark Style */

.navigation-main {
    display: flex;
    gap: 15px;
    align-items: center;
}

/* Language Flags Dropdown - Desktop */
.language-flags-dropdown {
    position: relative;
    margin-left: auto;
    z-index: 1000;
}

.language-flags-dropdown-desktop {
    display: block;
}

.language-flags-dropdown-mobile {
    display: none;
}

.language-flags-dropdown-toggle {
    background: transparent;
    border: none;
    border-radius: 0.5rem;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    position: relative;
}

.language-flags-dropdown-toggle:hover {
    animation: flag-pulse 1s ease-in-out infinite;
}

@keyframes flag-pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.flag-image-current {
    width: 32px;
    height: 24px;
    border-radius: 3px;
    display: block;
    object-fit: cover;
    border: 1px solid rgba(128, 128, 128, 0.5);
}

.language-flags-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--color-background-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 0.5rem;
    box-shadow: 0 8px 24px var(--glass-shadow);
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0s linear 0.2s;
    z-index: 1001;
    pointer-events: auto;
    margin-top: 0.5rem;
}

.language-flags-dropdown-menu::before {
    content: '';
    position: absolute;
    top: -0.5rem;
    left: 0;
    right: 0;
    height: 0.5rem;
    background: transparent;
}

.language-flags-dropdown:hover .language-flags-dropdown-menu,
.language-flags-dropdown-menu:hover,
.language-flags-dropdown:focus-within .language-flags-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition-delay: 0s;
}

.language-flags-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--color-border-primary);
}

.language-flags-dropdown-item:last-child {
    border-bottom: none;
}

.language-flags-dropdown-item:hover {
    background: var(--color-background-hover);
    padding-left: 1.25rem;
}

.language-flags-dropdown-item.active {
    background: var(--color-background-tertiary);
    color: var(--color-accent-primary);
}

.language-flags-dropdown-item.active::before {
    content: '✓';
    margin-right: -0.5rem;
    color: var(--color-accent-primary);
    font-weight: bold;
}

.flag-image {
    width: 24px;
    height: 18px;
    border-radius: 2px;
    display: block;
    object-fit: cover;
    flex-shrink: 0;
    border: 1px solid rgba(128, 128, 128, 0.5);
}

.flag-language-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: inherit;
}

.navigation-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.75rem 1.5rem;
    border-radius: 1rem;
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1);
    position: relative;
    overflow: hidden;
    background: var(--glass-background);
    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate)) brightness(var(--glass-brightness));
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate)) brightness(var(--glass-brightness));
    border: 1px solid var(--glass-border);
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
    text-align: center;
    box-shadow: 
        0 20px 60px var(--glass-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.28),
        inset 0 -1px 0 rgba(0, 0, 0, 0.34),
        inset 0 2px 14px rgba(255, 255, 255, 0.10),
        inset 0 -2px 12px rgba(0, 0, 0, 0.22),
        0 0 0 1px rgba(255, 255, 255, 0.14),
        inset 0 0 24px rgba(255, 255, 255, 0.04),
        0 0 42px rgba(23, 218, 255, 0.15),
        0 0 126px rgba(255, 215, 0, 0.08);
    will-change: transform, backdrop-filter, box-shadow;
}

.navigation-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.15;
    transition: left 0.4s ease;
    z-index: 0;
}

.navigation-link::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(23, 218, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
    z-index: 0;
}

.navigation-link > * {
    position: relative;
    z-index: 1;
}

.navigation-link:hover {
    color: var(--color-text-primary);
    background: var(--glass-background-hover);
    backdrop-filter: blur(var(--glass-blur-hover)) saturate(var(--glass-saturate)) brightness(var(--glass-brightness-hover));
    -webkit-backdrop-filter: blur(var(--glass-blur-hover)) saturate(var(--glass-saturate)) brightness(var(--glass-brightness-hover));
    border: 1px solid var(--glass-border-hover);
    transform: translateY(-6px) scale(1.08);
    box-shadow: 
        0 40px 100px var(--glass-shadow-hover),
        inset 0 1px 0 rgba(255, 255, 255, 0.38),
        inset 0 -1px 0 rgba(0, 0, 0, 0.40),
        inset 0 2px 18px rgba(255, 255, 255, 0.12),
        inset 0 -2px 16px rgba(0, 0, 0, 0.26),
        0 0 0 1px rgba(255, 255, 255, 0.18),
        0 0 84px var(--glass-glow),
        0 0 168px var(--glass-glow-teal),
        0 0 252px var(--glass-glow-gold),
        inset 0 0 32px rgba(255, 255, 255, 0.06);
}

.navigation-link:hover::before {
    left: 0;
}

.navigation-link:hover::after {
    width: 200px;
    height: 200px;
}

.navigation-link-active {
    color: var(--color-accent-primary);
    background: var(--glass-background-active);
    backdrop-filter: blur(var(--glass-blur-hover)) saturate(var(--glass-saturate)) brightness(var(--glass-brightness-hover));
    -webkit-backdrop-filter: blur(var(--glass-blur-hover)) saturate(var(--glass-saturate)) brightness(var(--glass-brightness-hover));
    border: 1px solid var(--glass-border-accent);
    box-shadow: 
        0 32px 100px var(--glass-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.44),
        inset 0 -1px 0 rgba(0, 0, 0, 0.50),
        inset 0 2px 14px rgba(255, 255, 255, 0.10),
        inset 0 -2px 12px rgba(0, 0, 0, 0.28),
        0 0 0 1px rgba(255, 255, 255, 0.18),
        0 0 84px var(--glass-glow),
        0 0 156px var(--glass-glow-teal),
        0 0 228px var(--glass-glow-gold),
        inset 0 0 24px rgba(255, 255, 255, 0.05);
}

.navigation-link-active::before {
    left: 0;
    background: var(--gradient-primary);
    opacity: 0.25;
}

.navigation-link-active::after {
    width: 150px;
    height: 150px;
    opacity: 0.3;
}

/* Deutschland-Effekt für aktiven Link */
.navigation-link-active:hover {
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: deutschland-shimmer 2s ease-in-out infinite;
}

/* Mobile Menu Toggle (CSS-only mit Checkbox) */
.mobile-menu-checkbox {
    display: none;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    position: absolute;
    top: 50%;
    right: 1rem;
    transform: translateY(-50%);
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
    display: block;
}

.mobile-menu-checkbox:checked + .mobile-menu-toggle .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-checkbox:checked + .mobile-menu-toggle .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-checkbox:checked + .mobile-menu-toggle .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Navigation */
.navigation-mobile {
    display: none;
    position: fixed;
    top: 116px;
    left: 0;
    width: 100%;
    background: var(--glass-background);
    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate)) brightness(1.15);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate)) brightness(1.15);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 
        0 4px 24px var(--glass-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.12);
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    z-index: 1000;
}

.mobile-menu-checkbox:checked ~ .navigation-mobile {
    display: flex;
    max-height: 100vh;
}

.navigation-link-mobile {
    padding: 1rem 2rem;
    font-size: var(--font-size-base);
    width: 100%;
    text-align: center;
    border-radius: 0;
    border-bottom: 1px solid var(--color-border-primary);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.navigation-link-mobile:hover {
    background: var(--color-background-hover);
    color: var(--color-text-primary);
}

.navigation-link-mobile:last-child {
    border-bottom: none;
}

/* Language Flags Mobile */
.language-flags-mobile {
    display: flex;
    flex-direction: column;
    gap: 0;
    width: 100%;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border-primary);
}

.language-flag-link-mobile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--color-border-primary);
}

.language-flag-link-mobile:last-child {
    border-bottom: none;
}

.language-flag-link-mobile:hover {
    background: var(--color-background-hover);
    padding-left: 2.5rem;
}

.language-flag-link-mobile.active {
    background: var(--color-background-tertiary);
    color: var(--color-accent-primary);
}

.language-flag-link-mobile.active::before {
    content: '✓';
    margin-right: -0.5rem;
    color: var(--color-accent-primary);
    font-weight: bold;
}

.flag-image-mobile {
    width: 24px;
    height: 18px;
    border-radius: 2px;
    display: block;
    object-fit: cover;
    flex-shrink: 0;
    border: 1px solid rgba(128, 128, 128, 0.5);
}

.flag-language-name-mobile {
    font-size: 0.875rem;
    font-weight: 500;
    color: inherit;
}

/* Mobile Media Queries */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .navigation-main {
        display: none;
    }
    
    .language-flags-dropdown-desktop {
        display: none;
    }
}

@media (max-width: 480px) {
    .navigation-link-mobile {
        padding: 0.75rem 1.5rem;
        font-size: var(--font-size-sm);
    }
    
    .language-flag-link-mobile {
        padding: 0.75rem 1.5rem;
    }
}