/* ===================================
   MODERN NAVIGATION - CSS AWARDS
   Animated hamburger, smooth transitions
   =================================== */

/* Enhanced Header */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.main-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Navigation Container */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem 0;
    max-width: 1400px;
    margin: 0 auto;
    padding-left: 2rem;
    padding-right: 2rem;
}

/* Logo with Animation */
.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.nav-brand:hover {
    transform: scale(1.05);
}

.logo {
    height: 45px;
    width: auto;
    transition: filter 0.3s ease;
}

.nav-brand:hover .logo {
    filter: brightness(1.1);
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #0066CC 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Desktop Navigation */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu > li {
    position: relative;
}

.nav-menu > li > a {
    position: relative;
    padding: 0.5rem 0;
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s ease;
}

/* Animated underline */
.nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #0066CC, #00d4ff);
    transition: width 0.3s ease;
}

.nav-menu > li > a:hover::after,
.nav-menu > li > a.active::after {
    width: 100%;
}

.nav-menu > li > a:hover {
    color: #0066CC;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 250px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: 12px;
    padding: 0.5rem 0;
    list-style: none;
    margin: 0.5rem 0 0 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--gray-700);
    text-decoration: none;
    transition: all 0.2s ease;
}

.dropdown-menu a:hover {
    background: rgba(0, 102, 204, 0.1);
    color: #0066CC;
    padding-left: 2rem;
}

/* Mobile Menu Toggle - Animated Hamburger */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 30px;
    height: 3px;
    background: var(--gray-900);
    border-radius: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

/* Animated X when open */
.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(11px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-20px);
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-11px) rotate(-45deg);
}

/* Mobile Menu Styles */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 2rem 2rem;
        gap: 0;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu > li {
        width: 100%;
        opacity: 0;
        transform: translateX(20px);
        animation: slideIn 0.3s ease forwards;
    }
    
    .nav-menu.active > li:nth-child(1) { animation-delay: 0.1s; }
    .nav-menu.active > li:nth-child(2) { animation-delay: 0.15s; }
    .nav-menu.active > li:nth-child(3) { animation-delay: 0.2s; }
    .nav-menu.active > li:nth-child(4) { animation-delay: 0.25s; }
    .nav-menu.active > li:nth-child(5) { animation-delay: 0.3s; }
    
    @keyframes slideIn {
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }
    
    .nav-menu > li {
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .nav-menu > li > a {
        display: block;
        width: 100%;
        padding: 1rem 0;
        font-size: 1.1rem;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(0, 102, 204, 0.05);
        border-radius: 8px;
        margin-top: 0.5rem;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    
    .dropdown.active .dropdown-menu {
        max-height: 500px;
    }
    
    .dropdown > a::after {
        content: '▼';
        position: absolute;
        right: 0;
        font-size: 0.7rem;
        transition: transform 0.3s ease;
    }
    
    .dropdown.active > a::after {
        transform: rotate(180deg);
    }
}

/* Overlay for mobile menu */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

/* Mega Menu (Optional - for larger sites) */
.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 90vw;
    max-width: 1200px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2rem;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.dropdown:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.mega-menu-column h4 {
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.mega-menu-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mega-menu-column li a {
    display: block;
    padding: 0.5rem 0;
    color: var(--gray-600);
    text-decoration: none;
    transition: all 0.2s ease;
}

.mega-menu-column li a:hover {
    color: #0066CC;
    padding-left: 0.5rem;
}

/* Search Bar in Navigation */
.nav-search {
    position: relative;
    margin-left: 1rem;
}

.nav-search input {
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 50px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    width: 200px;
}

.nav-search input:focus {
    outline: none;
    border-color: #0066CC;
    width: 250px;
}

.nav-search svg {
    position: absolute;
    left: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--gray-400);
}

/* CTA Button in Nav */
.nav-cta {
    padding: 0.6rem 1.5rem;
    background: linear-gradient(135deg, #0066CC 0%, #0099FF 100%);
    color: white;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    margin-left: 1rem;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 102, 204, 0.4);
}

/* Language Switcher */
.language-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 1rem;
}

.language-switcher button {
    padding: 0.4rem 0.8rem;
    background: transparent;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.language-switcher button:hover,
.language-switcher button.active {
    background: #0066CC;
    color: white;
    border-color: #0066CC;
}