/* ====================================
   HEADER AND NAVIGATION
   ==================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: var(--z-fixed);
    transition: all var(--transition-normal);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: var(--shadow-medium);
}

.navbar {
    padding: 0;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.navbar-brand {
    flex-shrink: 0;
}

.navbar-logo {
    display: block;
    text-decoration: none;
}

.logo-img {
    height: 40px;
    width: auto;
    transition: transform var(--transition-normal);
}

.logo-img:hover {
    transform: scale(1.05);
}

.navbar-menu {
    display: flex;
    align-items: center;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    list-style: none;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--spacing-sm) 0;
    position: relative;
    transition: color var(--transition-normal);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

/* Scroll Progress Bar */
.scroll-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    width: 0%;
    z-index: 1;
}

.navbar-end {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.contact-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color var(--transition-normal);
}

.contact-link:hover {
    color: var(--primary-color);
}

.contact-link i {
    font-size: 0.75rem;
}

.language-switcher {
    position: relative;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    min-height: 36px;
    touch-action: manipulation;
    /* Improve touch responsiveness */
    -webkit-tap-highlight-color: transparent;
    /* Remove tap highlight on iOS */
}

.language-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.language-btn:active {
    transform: translateY(0);
    background: var(--primary-active);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    gap: 4px;
    z-index: var(--z-fixed);
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 0;
    transition: all var(--transition-normal);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile contact info inside hamburger menu - hidden on desktop */
.mobile-contact-info {
    display: none;
}