header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: var(--dark-bg);
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.menu-toggle {
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.5rem;
    cursor: pointer;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
}

.header-buttons {
    display: flex;
    gap: 1rem;
    margin-left: 2rem;
}

.btn-yellow {
    background: var(--yellow);
    color: var(--dark-bg);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
}

.header-right {
    display: flex;
    gap: 3rem;
}

.icon-button {
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.7rem;
    cursor: pointer;
}