.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 72px;
    z-index: 1000;
    background: rgba(243, 243, 249, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(71, 89, 228, 0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    box-sizing: border-box;
}

.header-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.header-logo-img {
    height: 32px;
    width: auto;
    display: block;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: rgba(12, 12, 12, 0.6);
    text-decoration: none;
    transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    color: #4759E4;
}

.btn-analyze {
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: #F3F3F9;
    background-color: #4759E4;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 6px;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn-analyze:hover {
    background-color: #3647c4;
    transform: translateY(-1px);
}

.btn-analyze:active {
    transform: translateY(0);
}