/* ===== HEADER COMPONENT STYLES ===== */

.site-header {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border-primary);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: var(--font-size-xl);
}

.logo img {
    height: 70px;
    width: auto;
}

.logo:hover img {
    filter: drop-shadow(0 0 15px rgba(0, 212, 255, 0.5));
}

/* Main Navigation */
.main-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.nav-link:hover,
.nav-link.active {
    background: var(--bg-hover);
    color: var(--accent-primary);
    transform: translateY(-1px);
}

/* Dropdown Menu */
.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-normal);
    z-index: 1001;
}

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

.dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    border-bottom: 1px solid var(--border-primary);
}

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

.dropdown-item:hover {
    background: var(--bg-hover);
    color: var(--accent-primary);
}

/* Search Bar */
.search-container {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input {
    width: 300px;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-right: 40px;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
    width: 350px;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-btn {
    position: absolute;
    right: 8px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.search-btn:hover {
    color: var(--accent-primary);
    background: var(--bg-hover);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background: var(--bg-hover);
    color: var(--accent-primary);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-top: 2px solid var(--border-primary);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
}

.mobile-menu.active {
    display: block;
    animation: slideDown 0.3s ease-out;
}

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

.mobile-nav-menu {
    list-style: none;
    margin: 0;
    padding: var(--spacing-md);
}

.mobile-nav-item {
    margin-bottom: var(--spacing-sm);
}

.mobile-nav-link {
    display: block;
    padding: var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    font-weight: 500;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    background: var(--bg-hover);
    color: var(--accent-primary);
}

.mobile-search {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-primary);
}

.mobile-search .search-input {
    width: 100%;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .search-input {
        width: 250px;
    }
    
    .search-input:focus {
        width: 280px;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .search-container {
        display: none;
    }
    
    .header-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .logo {
        font-size: var(--font-size-lg);
    }
    
    .logo img {
        height: 32px;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: var(--spacing-sm);
    }
    
    .logo {
        font-size: var(--font-size-base);
    }
    
    .logo img {
        height: 28px;
    }
}