/* Navigation Menu Styles */
.main-nav {
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-logo:hover {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 5px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 10px 16px;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.nav-link:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.nav-link.active {
    background: var(--primary-color);
    color: white;
}

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


.nav-dropdown .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    min-height: 120px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    margin-top: 8px;
    padding: 8px;
    z-index: 1000;
}

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

.nav-dropdown .dropdown-item {
    display: block;
    padding: 12px 14px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    line-height: 1.5;
}

.nav-dropdown .dropdown-item:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.nav-dropdown .dropdown-item.active {
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-color);
    font-weight: 600;
}

.nav-dropdown .dropdown-header {
    padding: 10px 14px 6px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
    transition: all 0.2s ease;
}

.mobile-menu-toggle:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

/* Language Selector */
.language-selector {
    position: relative;
}

.language-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 0.95rem;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.language-toggle:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.language-picker-panel {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    padding: 8px;
    z-index: 1000;
}

.language-picker-panel.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-picker-panel h3 {
    margin: 0 0 8px 0;
    padding: 8px 12px;
    color: var(--text-color);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.language-option {
    display: block;
    width: 100%;
    padding: 10px 12px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    background: none;
    text-align: left;
}

.language-option:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.language-option.active {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary-color);
    font-weight: 600;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        height: 60px;
        padding: 0 15px;
    }
    
    .nav-logo {
        font-size: 1.2rem;
    }

    .mobile-menu-toggle {
        display: block;
        padding: 6px;
        font-size: 1.3rem;
    }
    
    .nav-actions {
        gap: 6px;
    }
    
    .language-picker-panel {
        right: 0;
        left: auto;
    }

    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--surface-color);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: all 0.3s ease;
        border-bottom: 1px solid var(--border-color);
        z-index: 998;
    }

    .nav-menu.active {
        max-height: calc(100vh - 60px) !important;
        height: calc(100vh - 60px) !important;
        overflow-y: scroll !important;
        overflow-x: hidden !important;
        opacity: 1;
        -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
        scroll-behavior: smooth;
    }

    .nav-item {
        width: 100%;
    }

    .nav-link {
        padding: 12px 16px;
        display: block;
    }

    .nav-dropdown .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        margin-top: 0;
        padding: 0;
        padding-left: 16px;
        max-height: none;
        overflow: visible;
        display: block;
    }
    
    .nav-dropdown .dropdown-item {
        padding: 10px 16px;
        font-size: 0.9rem;
    }
    
    .nav-dropdown .dropdown-header {
        padding: 8px 16px 4px;
        font-size: 0.7rem;
    }
}

/* Extra small screens - ensure menu is fully scrollable */
@media (max-width: 480px) {
    .nav-menu.active {
        max-height: calc(100vh - 60px) !important;
        height: calc(100vh - 60px) !important;
        overflow-y: scroll !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch !important;
        scroll-behavior: smooth !important;
    }
    
    .nav-menu {
        padding: 15px;
    }
    
    .nav-link {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
    
    .nav-dropdown .dropdown-item {
        padding: 8px 12px;
        font-size: 0.85rem;
    }
}