.main-header {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(223, 230, 233, 0.5);
    transition: var(--transition);
}

.main-header.scrolled {
    padding: 0.8rem 0;
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1001;
}

.logo img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    margin: 0;
    padding: 0;
}

.nav-list a {
    font-weight: 500;
    font-size: 1rem;
    color: var(--text-secondary);
    padding: 0.5rem 0;
    position: relative;
    display: inline-block;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to left, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
    border-radius: 1px;
}

.nav-list a:hover {
    color: var(--text-primary);
}

.nav-list a:hover::after {
    width: 100%;
}

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

.nav-list a.active::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 1001;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 100%;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: var(--transition);
}

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

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

@media (max-width: 992px) {
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--bg-primary);
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
        padding: 100px 2rem 2rem;
        z-index: 1000;
    }
    
    .main-nav.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .header-actions {
        position: fixed;
        bottom: 2rem;
        right: 0;
        left: 0;
        justify-content: center;
        z-index: 1001;
        padding: 0 2rem;
    }
    
    .header-actions button {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 1.5rem;
    }
    
    .logo img {
        height: 35px;
    }
    
    .logo-text {
        font-size: 1.3rem;
    }
}