.app-header { position: sticky; top: 0; z-index: 20; height: var(--header-height); display: flex; align-items: center; gap: 18px; padding: 0 32px; border-bottom: 1px solid var(--color-border); background: rgb(255 255 255 / 92%); backdrop-filter: blur(12px); }
.app-header__menu { display: none; width: 40px; height: 40px; padding: 10px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); cursor: pointer; }
.app-header__menu span { display: block; height: 2px; margin: 4px 0; border-radius: 2px; background: var(--color-text); }
.app-header__eyebrow { color: var(--color-text-muted); font-size: .7rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.app-header__title { margin-top: 2px; font-size: 1rem; }
.app-header__account { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.app-header__avatar { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 50%; color: #fff; background: var(--color-primary); font-weight: 700; }
.app-header__user { display: grid; font-size: .82rem; }
.app-header__user span { color: var(--color-text-muted); font-size: .72rem; }