/* Professional Navigation Menu Styles */

/* Header Container */
.top-bar {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.9) 100%);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.top-bar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

/* Header Layout */
.header-layout {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
    position: relative;
}

/* Brand Section Enhancement */
.brand {
    display: flex;
    align-items: center;
    gap: 15px;
    transition: transform 0.3s ease;
}

.brand:hover {
    transform: scale(1.02);
}

.brand-logo {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.2);
    transition: all 0.3s ease;
}

.brand-logo:hover {
    box-shadow: 0 6px 25px rgba(0, 123, 255, 0.3);
    transform: translateY(-2px);
}

.logo-image {
    width: 50px;
    height: 50px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.brand-logo:hover .logo-image {
    transform: scale(1.1);
}

.brand-text .logo {
    font-size: 18px;
    font-weight: 700;
    color: #1a365d;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.brand-text .tagline {
    font-size: 12px;
    color: #4a5568;
    font-weight: 500;
}

/* Language Switcher Enhancement */
.language-switcher {
    position: relative;
}

.language-dropdown {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 25px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

.language-dropdown:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

.language-dropdown:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

/* CTA Button Enhancement */
.cta-btn.professional {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
    position: relative;
    overflow: hidden;
}

.cta-btn.professional:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.cta-btn.professional:hover:before {
    left: 100%;
}

.cta-btn.professional:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(40, 167, 69, 0.4);
}

/* Professional Navigation Menu */
.header-nav {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    position: relative;
}

.header-nav nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.05) 0%, rgba(0, 123, 255, 0.02) 100%);
    border-radius: 50px;
    padding: 8px;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 123, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.header-nav nav:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        rgba(0, 123, 255, 0.1) 0%, 
        rgba(0, 123, 255, 0.05) 25%, 
        rgba(0, 123, 255, 0.02) 50%, 
        rgba(0, 123, 255, 0.05) 75%, 
        rgba(0, 123, 255, 0.1) 100%);
    animation: shimmer 3s ease-in-out infinite;
    opacity: 0.5;
}

/* Navigation Links */
.header-nav nav a {
    position: relative;
    padding: 12px 24px;
    color: #2d3748;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    border-radius: 25px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2;
    white-space: nowrap;
    overflow: hidden;
}

.header-nav nav a:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 25px;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.header-nav nav a:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.4s ease;
    z-index: -1;
}

/* Hover Effects */
.header-nav nav a:hover {
    color: white;
    transform: translateY(-2px);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.header-nav nav a:hover:before {
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.3);
}

.header-nav nav a:hover:after {
    width: 100px;
    height: 100px;
}

/* Active State */
.header-nav nav a.active {
    color: white;
    background: linear-gradient(135deg, #007bff, #0056b3);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

.header-nav nav a.active:before {
    opacity: 1;
    transform: scale(1);
}

/* Floating Indicator */
.nav-indicator {
    position: absolute;
    bottom: -2px;
    height: 3px;
    background: linear-gradient(90deg, #007bff, #0056b3);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.4);
}

/* Animations */
@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.header-nav {
    animation: fadeInDown 0.6s ease-out;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .header-layout {
        flex-direction: column;
        gap: 15px;
        padding: 10px 0;
    }
    
    .header-nav {
        margin-top: 10px;
        padding-top: 10px;
        width: 100%;
    }
    
    .header-nav nav {
        flex-wrap: wrap;
        gap: 8px;
        padding: 6px;
    }
    
    .header-nav nav a {
        padding: 10px 16px;
        font-size: 13px;
        flex: 1;
        text-align: center;
        min-width: calc(50% - 4px);
    }
    
    .brand-text .logo {
        font-size: 16px;
    }
    
    .brand-text .tagline {
        font-size: 11px;
    }
    
    .cta-btn.professional {
        padding: 10px 20px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .header-nav nav a {
        min-width: 100%;
        margin-bottom: 4px;
    }
    
    .header-nav nav {
        flex-direction: column;
        border-radius: 15px;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .top-bar {
        background: linear-gradient(135deg, rgba(26, 32, 44, 0.95) 0%, rgba(26, 32, 44, 0.9) 100%);
        border-bottom-color: rgba(255, 255, 255, 0.1);
    }
    
    .brand-text .logo {
        color: #e2e8f0;
    }
    
    .brand-text .tagline {
        color: #a0aec0;
    }
    
    .header-nav nav a {
        color: #e2e8f0;
    }
    
    .header-nav nav {
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
        border-color: rgba(255, 255, 255, 0.1);
    }
}

/* Scroll Effects */
.header-scroll-effect {
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

.header-scroll-effect.visible {
    transform: translateY(0);
}

/* Loading Animation */
.nav-loading {
    position: relative;
    overflow: hidden;
}

.nav-loading:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}