header {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 0 25px;
    height: 75px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    z-index: 10;
    flex-shrink: 0;
    width: 100%;
}

header h1 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    padding-left: 55px;
    color: white;
    letter-spacing: -0.3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.header-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
}

#user-name {
    font-size: 14px;
    font-weight: 700;
    color: white;
}

.version-tag {
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 1px;
    text-transform: uppercase;
}

@media (max-width: 600px) {
    header { height: 70px; padding: 0 20px; }
    header h1 { font-size: 18px; }
}