.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--color-text);
    text-decoration: none;
}

.brand__mark {
    width: 38px;
    height: 38px;
}

.brand__name {
    font-family: var(--font-display);
    font-size: 19px;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.brand__name span {
    color: var(--color-primary);
}

.site-header__actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.environment-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    color: var(--color-text-soft);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.environment-badge__dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(3, 152, 85, 0.12);
}

/* Topo da área autenticada */
.app-topbar {
    min-width: 0;
    padding: 0 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    background: color-mix(in srgb, var(--color-surface) 88%, transparent);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(16px);
}

.app-topbar__left,
.app-topbar__actions,
.app-user {
    display: flex;
    align-items: center;
}

.app-topbar__left {
    gap: 14px;
}

.app-topbar__menu-button {
    display: none;
    width: 40px;
    height: 40px;
    place-items: center;
    color: var(--color-text);
    background: var(--color-surface-muted);
    border: 1px solid var(--color-border);
    border-radius: 11px;
    cursor: pointer;
    font-size: 21px;
}

.app-topbar__eyebrow {
    display: block;
    color: var(--color-text-soft);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
}

.app-topbar h1 {
    margin-top: 2px;
    font-size: 18px;
}

.app-topbar__actions {
    gap: 14px;
}

.app-user {
    gap: 10px;
}

.app-user__avatar {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    color: #fff;
    background: linear-gradient(135deg, var(--color-primary), #00a884);
    border-radius: 50%;
    font-size: 13px;
    font-weight: 800;
}

.app-user__info strong,
.app-user__info span {
    display: block;
}

.app-user__info strong {
    max-width: 220px;
    overflow: hidden;
    color: var(--color-text);
    font-size: 12px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-user__info span {
    margin-top: 2px;
    color: var(--color-text-soft);
    font-size: 10px;
}

/* Seletor de tema (claro / cinza / escuro) */
.theme-switch {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    background: var(--color-surface-muted);
    border: 1px solid var(--color-border);
    border-radius: 999px;
}

.theme-switch__btn {
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    color: var(--color-text-soft);
    background: transparent;
    border: 0;
    border-radius: 999px;
    cursor: pointer;
    font-size: 16px;
    transition: background var(--transition), color var(--transition);
}

.theme-switch__btn:hover {
    color: var(--color-text);
}

.theme-switch__btn[aria-pressed="true"] {
    color: var(--color-primary);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

/* Menu clicavel do usuario (canto superior direito) */
.app-user {
    position: relative;
    padding: 6px 8px;
    border-radius: 12px;
    cursor: pointer;
    outline: none;
    transition: background var(--transition);
}

.app-user:hover,
.app-user[aria-expanded="true"] {
    background: var(--color-surface-muted);
}

.app-user__caret {
    margin-left: 2px;
    color: var(--color-text-faint);
    font-size: 12px;
    transition: transform var(--transition);
}

.app-user[aria-expanded="true"] .app-user__caret {
    transform: rotate(180deg);
}

.app-user__dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 200px;
    padding: 8px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 80;
}

.app-user[aria-expanded="true"] .app-user__dropdown {
    display: block;
}

.app-user__dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
}

.app-user__dropdown-item i {
    font-size: 16px;
    color: var(--color-text-soft);
}

.app-user__dropdown-item:hover {
    background: var(--color-surface-muted);
}

.app-user__dropdown-item--danger {
    color: var(--color-danger);
}

.app-user__dropdown-item--danger i {
    color: var(--color-danger);
}

.app-user__dropdown-divider {
    height: 1px;
    margin: 6px 4px;
    background: var(--color-border);
}

@media (max-width: 760px) {
    .app-topbar { padding: 0 16px; }
    .app-topbar__menu-button { display: grid; }
    .app-user__info { display: none; }
    .theme-switch__btn { width: 28px; height: 28px; font-size: 14px; }
}